JP2011120089A - System, device method and program for receiving content - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To stably receive and reproduce broadcast digital content. <P>SOLUTION: A device for receiving a content includes a broadcast receiving unit for receiving content data transmitted via a broadcast network; a communication receiving unit for receiving the content data transmitted via the Internet network; and a reproduction unit for reproducing the received content data. The device for receiving a content, further, includes a content storage unit for respectively acquiring and storing the content data received by the broadcast reception unit and the communication receiving unit in parallel to each other; a reception state monitoring unit for monitoring the reception state in the broadcast receiving unit and the communication receiving unit; and a reproduction content selecting unit for selecting the content data for continuous reproduction, based on the reception states, from the content data received by the broadcast receiving unit, the content data received by the broadcast receiving unit, and the content data stored in the content storage unit and provides the selected content data to the reproduction unit. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a data broadcast receiving system for receiving a data broadcast for reproduction.

While digital broadcasting services are spreading, for example, television broadcasting is moving from terrestrial analog television broadcasting to terrestrial digital television broadcasting (terrestrial digital), and complete transition is completed in 2011 To do.
In 2006, digital terrestrial television broadcasting for mobile phones (commonly called “one-segment broadcasting”) was started, and it has become widespread as a system that can receive television broadcasting outdoors using a cellular phone or the like.
In addition, specifications for multimedia broadcasting for mobile phones such as ISDB-Tmm (Integrated Services Digital Broadcasting-Terrestrial for mobile multimedia) and MediaFLO (Media Forward Link Only: Media Flow) are being studied. It is scheduled to start.

  In the above-described digital broadcasting service, broadcast transmission of content is performed from a broadcasting device to a receiving device via a broadcasting network. At this time, if the communication state in the broadcasting network is good (normal state), the content is normally distributed from the broadcasting device to the receiving device, and the user of the receiving device can view the distributed content. .

  However, when the communication state of the broadcast network becomes poor, the content transmitted (broadcast) from the broadcasting device does not normally reach the receiving device, and the receiving device cannot receive the content normally. Users may not be able to view content.

  For example, when the terrestrial digital television broadcasting receiving device, which is a receiving device for digital terrestrial television broadcasting, has a markedly deteriorated location of the terrestrial digital television, the radio wave communication state in the broadcasting network is deteriorated, and content to the receiving device is thereby reduced. The normal distribution of the content may be hindered, and a phenomenon such as the stop of playback of the viewing content in the receiving device or the occurrence of block noise in the viewing content may occur.

  In addition, when a mobile phone that supports 1Seg, which is a receiving device for digital terrestrial television broadcasting for mobile phones, is located in an area with poor radio wave conditions, such as underground, as the user moves, the broadcasting network is disconnected, Since the broadcasted content does not reach the receiving device, the user of the receiving device cannot view the content at all.

  In a general digital broadcasting service, as described above, the communication state in the broadcasting network is in a poor state, so that content reproduction (output) in the receiving device is hindered, and the content viewing of the user of the receiving device cannot be viewed. It is impossible to receive a new scene (pointing to a specific section of content) again.

  This is because the digital broadcast service is a broadcast service intended for different receiving devices, and is a specification in which content transmission cannot be performed again only for a specific receiving device.

  As a related technique, content that is broadcast from a broadcast device is recorded by a recording device, and a scene whose viewing is hindered due to deterioration of the state of the broadcast network is set separately from the broadcast network. A method of performing unicast transmission from a recording device to a receiving device via a video is disclosed (Patent Document 1).

In this related technology, first, a broadcast device broadcasts content to a receiving device, and a broadcast device that receives a broadcast transmission receives and records content on a recording device that is set separately from the broadcast device.
Here, as described above, when content non-delivery to the receiving device occurs due to deterioration of the communication state of the broadcast network or user operation, it is determined in which scene of the content broadcast the content non-delivery occurred. Save to broadcast or recording device.
Then, the recording device specifies the scene where the content has not been delivered (non-delivery scene), and unicasts the received device from the beginning to the receiving device via the communication network.
Thereby, the user of the receiving apparatus can resume viewing the content from the beginning of the scene that could not be viewed.

  In addition, as a related technology for this, in a data broadcast receiving system for receiving data broadcast, the broadcast reception by switching the reception method between the broadcast receiving means for receiving the data broadcast and the Internet access means according to the reception situation. A system for receiving a module whose status was bad and could not be received has been disclosed (Patent Document 2).

JP-A-2005-318250 JP 2001-308747 A

  However, in the related art disclosed in Patent Document 1, when the recording apparatus shifts to a unicast transmission state in which a non-delivery scene is transmitted from the recording apparatus to the receiving apparatus, after that, for example, even when the communication state in the broadcast network is improved, Since it is difficult to return to the broadcast transmission state in which broadcast transmission at is used, the unicast transmission state using the communication network is continued.

In this unicast transmission state, the processing load applied to the communication network and the recording device is proportional to the number of receiving devices. For this reason, when the unicast transmission state is continued, the processing load on the communication network and the recording device increases, and there is a disadvantage that the cost for maintaining the communication network and the recording device increases.
In broadcast transmission, the processing load on the broadcast network or broadcast device does not depend on the number of receiving devices.

  In addition, after the start of unicast transmission, for example, when the communication state of the communication network is deteriorated and the communication state of the broadcast network is improved, the unicast transmission via the communication network is continued in the method according to the related technique 1. As a result, the receiving device may fail to reach the content sent via the communication network, and the user of the receiving device may not be able to view the content.

  Furthermore, since the related art of Patent Document 2 is a method of acquiring a data broadcast portion that could not be acquired by the broadcast network via the communication network, the data reception cannot be performed by the broadcast receiving means and the Internet access means. When the broadcast reception is enabled, that is, when the data broadcast reception is restored, there may be a problem that the delay of the data broadcast received by the Internet access means with respect to the real-time data broadcast being broadcast continues.

[Object of invention]
The present invention provides a content receiving system, a content receiving apparatus, and a content receiving method capable of improving the inconveniences of the related art and capable of stably and continuously reproducing digital broadcast content transmitted via a broadcast network and a communication network. Is the purpose.

  In order to achieve the above object, a content receiving apparatus according to the present invention includes a broadcast receiving unit that receives content data sent via a broadcast network, and a communication receiver that receives content data sent via an Internet network. And a content receiving device comprising a playback unit for playing back the received content data, a content storage unit for acquiring and storing each of the content data received by the broadcast receiving unit and the communication receiving unit, Content data received by the broadcast receiving unit, content data received by the broadcast receiving unit, and content data for continuous playback of the content data in the playback unit from content data stored in the content storage unit A playback content selection unit that selects and provides to the playback unit To have.

  In addition, a content receiving system according to the present invention stores a content transmitting apparatus that transmits preset content data via a broadcast network, content data received via the broadcast network, and stores the stored content data. Content including a content recording device for transmitting to the Internet network, and a content receiving device including a playback unit that connects to the broadcast network and the Internet network to acquire the content data and reproduce the content data In the reception system, the content reception device acquires and stores each of the content data received by the broadcast reception unit and the communication reception unit, the content data received by the broadcast reception unit, Content received by the broadcast receiver A playback content selection unit that selects content data for continuous playback of the content data in the playback unit from the data and content data stored in the content storage unit and provides the content data to the playback unit .

  The content receiving method according to the present invention includes a broadcast receiving unit that receives content data sent via a broadcast network, a communication receiving unit that receives content data sent via an Internet network, and the received data. A content receiving apparatus having a playback unit for playing back content data, wherein the content receiving method is for continuously playing back the content data, wherein each of the broadcast receiving unit and the communication receiving unit receives the content data. And a preset content storage unit stores the content data, the content data received by the broadcast receiving unit, the content data received by the broadcast receiving unit, and the content data stored in the content storage unit Content data for continuous playback of the content data in the playback unit. Wherein providing the playback unit selects the data, the reproduction unit is characterized by performing the reproduction of the content data.

  Furthermore, a content receiving program according to the present invention includes a broadcast receiving unit that receives content data sent via a broadcast network, a communication receiving unit that receives content data sent via an Internet network, and the received data. A content receiving apparatus having a playback unit for playing back content data, wherein the content reception program is for continuously playing back the content data, wherein each of the broadcast receiving unit and the communication receiving unit receives the content data. A content reception processing function for performing processing, a content storage processing function for performing processing for storing the content data in a preset content storage unit, content data received by the broadcast receiving unit, and received by the broadcast receiving unit Content data stored in the content storage unit A content selection function of providing the content data to said reproducing unit to select content data for continuous reproduction of the content data in the playback unit, is characterized by executing a preset computer.

  Since the present invention is configured and functions as described above, according to this, a content storage unit that stores in parallel each content data received by the broadcast receiving unit and the communication receiving unit, a broadcast receiving unit, and a communication receiving unit Digital broadcast content broadcasted by a configuration including a selective reproduction unit that selects and reproduces content data for continuous reproduction from a broadcast reception unit, a communication reception unit, or a content storage unit based on the reception state in Content receiving apparatus, content receiving system, content receiving method, and content receiving program can be provided.

It is a schematic block diagram which shows one Embodiment in the content reception system by this invention. It is a flowchart which shows the operation | movement process step of the receiver in the content reception system disclosed in FIG. It is explanatory drawing which shows the operation state of the receiver in the content reception system disclosed in FIG. It is explanatory drawing which shows an example in case the operation state of the receiver in the content reception system disclosed in FIG. 1 changes. 5A and 5B are flowcharts illustrating an example of operation processing steps of the selection unit of the receiving device in the content receiving system disclosed in FIG. It is a schematic block diagram which shows one Embodiment in the content reception system by this invention. It is explanatory drawing which shows an example of the reproduction | regeneration content reproduced | regenerated with the receiver in the content reception system disclosed in FIG.

[Embodiment 1]
Next, embodiments for carrying out the present invention will be described with reference to the drawings.

  As shown in FIG. 1, a communication quality monitoring system according to a first embodiment of the present invention includes a broadcasting apparatus 1 that broadcasts digital broadcasting content (content data) set in advance via a broadcasting network 4, and a broadcast The content sent via the network 4 is broadcast received and stored, and at the same time, the recording device 2 that unicasts the content via the communication network 5 and the broadcast reception of the content sent via the broadcast network 4 are performed. In addition, it has a configuration including a receiving device 3 that unicasts the content sent through the communication network 5.

  Here, the recording device 2 is connected to the broadcasting device 1 through the broadcasting network 4 and receives the content broadcast from the broadcasting device 1. The receiving device 3 is also connected to the broadcasting device 1 via the broadcasting network 4 and receives the content broadcast from the broadcasting device 1. Further, the receiving device 3 is connected to the recording device 2 via the communication network 5 and receives the content unicast transmitted from the recording device 2.

  In addition, as a combination of (broadcasting device 1, recording device 2, and receiving device 3), which is a configuration content of the present embodiment, specifically, (terrestrial digital broadcasting station, time shift server, and digital terrestrial television) (One-segment broadcasting station, time shift server, and one-segment mobile phone) are assumed.

The broadcast apparatus 1 broadcasts the content acquired by the input unit 11 from the preset content source via the connection 1a to the content such as video and audio for digital broadcasting via the connection 1a. It has a broadcast transmission unit 12 for transmission.
Here, the content is assumed to be digital data played back in time series. For example, it may be a video or audio that is streamed, a music that is streamed, a character string that is displayed in time series, or the like.

  Further, the content source may be a storage device that stores previously created content or a photographing device that sequentially captures and captures content. Moreover, the apparatus which receives the content broadcast from another apparatus may be sufficient.

The recording device 2 includes a broadcast receiving unit 21 that broadcasts content transmitted from the broadcasting device 1 via the broadcast network 4, a content storage unit 22 that stores content broadcast-received by the broadcast receiving unit 21, and content storage. A communication transmission unit 23 for unicasting the content stored in the unit 22 to the communication network 5 is provided.
Note that the content broadcast from the broadcast transmission unit 12 is sent to the recording device 2 via the connection 4a.

  The broadcast receiving unit 21 has a recording content reception supply function for receiving content broadcasted from the broadcast device 1 and supplying the received content to the content storage unit 22 via the connection 2a.

The content storage unit 22 has a recording content storage function for storing the content supplied for recording from the broadcast receiving unit 21 in a storage area such as a preset memory or HDD.
When a unicast reception request from the receiving device 3 is sent, the communication transmission unit 23 retrieves the content from the content storage unit 22 in response to the unicast reception request, and unicasts the content to the communication network 5. Perform transmission (unicast transmission function). The unicast-transmitted content is transmitted to the receiving device 3.

  The recording content reception / supply function, the recording content reception / supply function, and the unicast transmission function in the recording device 2 are executed in parallel with the operation processing in the broadcasting device 1 and the receiving device 3 described above. And

The receiving device 3 includes a broadcast receiving unit 31 that receives (broadcast reception) content transmitted from the broadcasting device 1 via the broadcasting network 4 (broadcast transmission), and unicasts from the recording device 2 via the communication network 5. A communication receiving unit 32 that receives transmitted content (unicast reception), and a content storage unit that stores the broadcast and strike received content and the unicast received content that are received by the broadcast receiving unit 31 and the communication receiving unit 32 33, a selection unit 34 for selecting a content to be reproduced from broadcast reception content, unicast reception content, and local storage content stored in the content storage unit 33, and reproduction of the content selected by the selection unit 34 A playback unit 35 is provided.
Here, it is assumed that the broadcast receiving unit 31, the communication receiving unit 32, the content storage unit 33, and the playback unit 35 in the receiving device 3 operate based on control instructions from the selection unit 34, respectively.

  Further, it is assumed that the content broadcast-transmitted from the broadcast transmission unit 12 is sent to the receiving device 3 via the connection 4b in the broadcast network 4.

The broadcast receiving unit 31 is connected to the broadcast network 4 via the connection 4b and has a broadcast reception execution function for performing broadcast reception of content sent from the broadcast network 4 based on an instruction from the selection unit 34.
In addition, the broadcast receiving unit 31 has a broadcast content storage function for storing broadcast-received content (broadcast content) in the content storage unit 33.

Furthermore, the broadcast receiving unit 31 has a reproduction broadcast content providing function for providing the broadcast reception content (broadcast content) to the selection unit 34 as reproduction content in response to a request from the selection unit 34.
Here, the scene (broadcast content) passed to the selection unit 34 as playback content is played back by the playback unit 35.

The communication receiving unit 32 is connected to the communication network 5 via the connection 5b, and receives unicast reception of content (scene) sent from the recording device 2 via the communication network 5 based on an instruction from the selection unit 34. A unicast reception execution function is provided.
Further, the communication receiving unit 32 has a communication content storage function for storing the content (communication content) received by unicast in the content storage unit 33.

Furthermore, the communication receiving unit 32 has a reproduction communication content providing function for providing the selection unit 34 with the content (communication content) received by unicast as the reproduction content in response to a request from the selection unit 34.
Here, the scene (communication content) transferred to the selection unit 34 as the reproduction content is reproduced by the reproduction unit 35.

The content storage unit 33 has a content storage function for storing content (broadcast content and communication content) received by the broadcast reception unit 31 and the communication reception unit 32 as described above.
Note that the content storage unit 33 specifically includes a storage device including a storage disk such as an HDD.

  As shown in FIG. 1, the selection unit 34 connects to the broadcast reception unit 31, the content storage unit 33, the communication reception unit 32, and the reproduction unit 35 via a connection 3c, a connection 3e, a connection 3d, and a connection 3f, respectively. As described above, the operation control function for controlling the operation of each of the broadcast reception unit 31, the communication reception unit 32, the content storage unit 33, and the reproduction unit 35 by performing a control instruction is provided. Have.

In addition, the selection unit 34 has a broadcast communication state investigation function that investigates whether the broadcast communication state in the broadcast network 4 is good enough to enable broadcast reception of content.
Here, for example, the selection unit 34 acquires the communication data received from the broadcast network 4 by the broadcast reception unit 31, and the broadcast communication state in the broadcast network 4 based on the communication data is the content of the content sent from the broadcast device 1. It is determined whether broadcast reception is as good as possible.

In addition, when the broadcast communication state of the broadcast network 4 is so good that the broadcast reception unit 31 can receive the broadcast, the selection unit 34 performs a process of receiving the content broadcast to the broadcast reception unit 31 (broadcast reception). A broadcast reception control function instructing execution of the function).
Further, the selection unit 34 instructs the broadcast receiving unit 31 to execute a process (content storage function) for storing the broadcast content received by the broadcast receiving unit 31 in the content storage unit 33. It has.

In addition, the selection unit 34 has a recording communication state investigation function for examining whether the communication state in the communication network 5 is good enough to allow the communication reception unit 32 to receive the content (scene).
Here, for example, the selection unit 34 acquires the communication data received from the communication network 5 by the communication reception unit 32, and the communication state in the communication network 5 based on the communication data is transmitted from the recording device 2 (contents). ) Is determined to be good enough to allow unicast reception by the communication receiver 32.

In addition, when the communication state of the communication network 5 is so good that the communication reception unit 32 can perform unicast reception, the selection unit 34 receives a unicast reception (unicast) of a scene (content) from the communication reception unit 32. (Cast reception function) is instructed (unicast reception control function).
Further, the selection unit 34 includes a recording scene storage control function that instructs the communication reception unit 32 to execute processing (content storage function) for storing the content received by the communication reception unit 32 in the content storage unit 33. ing.

The selection unit 34 monitors the scene reproduced by the reproduction unit 35 and the scene received by the broadcast reception unit 31 and the communication reception unit 32, and also reproduces a scene ( A scene to be reproduced: a reproduction scene) and a reproduction scene detection function for detecting the reproduction timing.
As a result, the selection unit 34 grasps and manages scenes in a section that cannot be reproduced in the content and scenes (reproduction scenes) that are reproduced by the reproduction unit 35.

  Further, the selection unit 34 has a content storage investigation function for checking whether or not the content scene reproduced by the reproduction unit 35 has been stored in the content storage unit 33. Note that this content storage investigation function is performed via the connection 3e.

  Here, when the playback scene in the playback unit 35 has been stored in the content storage unit 33, the selection unit 34 acquires the stored scene from the content storage unit 33 and supplies it to the playback unit 35 (playback scene supply function) ).

  The selection unit 34 has a content section that could not be reproduced due to poor communication between the broadcast network 4 and the communication network 5, and the broadcast reception unit 31 when the communication state of the broadcast network 4 or the communication network 5 is restored. It is assumed that the difference (reproduction difference) between the real-time broadcast content sent to the scene and the scene (reproduction scene) reproduced by the reproduction unit 35 is constantly monitored.

Here, when the broadcast reception unit 31 is performing broadcast reception, when a scene (playback scene) played back by the playback unit 35 has the same content as a scene being received by the broadcast reception unit 31 (the playback difference is If not, the selection unit 34 acquires the scene being received by the broadcast reception unit 31 and supplies the scene to the reproduction unit 35.
Note that the selection unit 34 may have different characteristics regarding contents such as image resolution, for example, for a scene received by broadcast and a scene received by unicast.

Further, the selection unit 34 supplies the scene saved by the content storage unit 33 to the playback unit 35 (supply of saved scene), or supplies the scene being broadcast received by the broadcast reception unit 31 to the playback unit 35. In the case of (broad reception receiving scene), the communication receiving unit 32 has a unicast reception determination function for checking whether or not unicast reception of content (scene) is being executed.
Here, when the communication receiving unit 32 is performing unicast reception, the selection unit 34 instructs the communication receiving unit 32 to stop unicast reception (unicast reception stop control function).

  In addition, unlike the scene (playback scene) in which the broadcast receiving unit 31 is receiving the broadcast, the playback unit 35 does not store the playback scene in the playback unit 35. The selection unit 34 investigates whether or not the communication state of the communication network 5 is so good that the communication reception unit 32 can receive content (scene) unicast (via the communication network 32). Communication status check function).

  Here, the selection unit 34 ensures that the recording communication state in the communication network 5 is so good that unicast reception can be performed in the communication reception unit 32, that is, a communication band that allows unicast reception to be executed normally. If it is determined that the scene has been received, the communication receiving unit 32 is instructed to execute processing for receiving a unicast-transmitted scene and storing the scene in the content storage unit 33 (unicast reception control instruction). function).

  At this time, as described above, the selection unit 34 supplies the scene being unicast received by the communication reception unit 32 to the playback unit 35 as a playback scene (recording content supply function during reception).

  In addition, when a certain time elapses or a scene (reproduction scene) reproduced by the reproduction unit 35 is updated by a user operation (seek or the like), the selection unit 34 selects the broadcast network 4. Investigate the broadcast communication status again (broadcast communication status review function).

  With the configuration described above, the selection unit 34 selects any one of the scene broadcast-received by the broadcast reception unit 31, the scene unicast-received by the communication reception unit 32, and the scene stored in the content storage unit 33. It can be selected according to the communication state of the broadcast network 4 and the communication network 5 and supplied to the playback unit 35 as a playback scene.

  For this reason, in this embodiment, even after the communication state of the broadcast network 4 and the communication network 5 is restored, a scene is acquired in parallel from the broadcast network 4 and the communication network 5, and the selection unit 34 switches transparently. However, by providing it to the playback unit 35, it is possible to play back all the broadcast content without making the user (viewer) aware of the scene acquisition destination.

  As described above, the reproduction unit 35 has a scene reproduction output function for outputting and reproducing the scene selected and supplied by the selection unit 34 to an output device such as a display or a speaker set in advance in the reception device 3.

In the present embodiment, the content stored in the content storage unit 33 may be stored and retained without reproducing the content received by broadcast or unicast.
In this case, the selection unit 34 suppresses execution of the reproduction output function in the reproduction unit 35 of the reception device 3.

  Here, the operation state in the receiving device 3 will be described with reference to FIG.

  As shown in FIG. 3, the operating state of the receiving device 3 includes whether or not broadcast reception is performed (execution / stop) in the broadcast reception unit 31 and whether or not unicast reception is performed (execution / execution) in the communication reception unit 32. Stop) and a combination of scene supply sources to be reproduced by the reproduction unit 35 are classified into six types of states A to F.

In the state A, broadcast reception of the broadcast receiving unit 31 is in an effective state, unicast reception of the communication receiving unit 32 is in a stopped state, and a scene being broadcast by the broadcast receiving unit 31 is provided to the playback unit 35 and played back. . This is the case, for example, when the communication state of the broadcast network 4 is good, and the scene being broadcast is output in real time.
At this time, the viewer can view the broadcast-transmitted scene in real time.

  In state B, broadcast reception of the broadcast receiving unit 31 is in an effective state, unicast reception of the communication receiving unit 32 is in a stopped state, and a scene previously stored in the storage unit 33 is provided to the playback unit 35 and played back. The This is applied, for example, when the viewer wants to view the scene stored in the storage unit 33 in advance when the communication state of the broadcast network 4 is good.

  In the state C, the broadcast reception of the broadcast receiving unit 31 is in an effective state, and further, the unicast reception of the communication receiving unit 32 is also in an executing state, and a scene being unicast received by the communication receiving unit 32 is played back. 35 and played. This may occur, for example, when the viewer views a scene that is not stored in advance in the storage unit 33 when the communication state of the broadcast network 4 and the communication network 5 is good.

  Further, in the state D, the broadcast reception of the broadcast receiving unit 31 is in a stopped state, and further, the unicast reception of the communication receiving unit 32 is also in a stopped state, and the scene previously stored in the storage unit 33 is stored in the playback unit 35. Offered and played. This may occur, for example, when the viewer wants to view a scene that has been stored in advance in the storage unit 33 when the communication state of the broadcast network 4 is poor.

  Further, in the state E, the broadcast reception of the broadcast receiving unit 31 is in a stopped state, the unicast reception of the communication receiving unit 32 is in an execution state, and a scene being unicast received by the communication receiving unit 32 is provided to the playback unit 35. And played. This may occur, for example, when the viewer wants to view a scene that has not been previously stored in the storage unit 33 when the communication state of the broadcast network 4 is poor.

  Furthermore, in the state F, the broadcast reception of the broadcast receiving unit 31 is in a stopped state, and further, the unicast reception of the communication receiving unit 32 is also in a stopped state, and no scene is provided to the playback unit 35. Also not done. This is because, for example, when the communication state of the broadcast network 4 and the communication network 5 is in a poor state, an attempt is made to reproduce a scene that is broadcasted in real time, or an attempt to reproduce a scene that is not stored in the storage unit 33. Can occur if

As described above, in the present embodiment, when the communication state of the communication network 5 is receivable, the scene of the section in which the communication state of the broadcast network 4 is poor is acquired by the communication receiving unit 32. Play.
The communication receiving unit 32 stores the received scene in the content storage unit 33.

  When the communication state of the broadcast network 4 becomes receivable, the scene received by the broadcast receiving unit 31 is stored in the content storage unit 33, and the scene received and reproduced by the communication reception unit 32 is stored in the content storage unit 33. The selector 34 stops the unicast reception by the communication receiver 32 when it catches up with the scene stored in, and simultaneously switches the acquisition destination of the scene to be reproduced to the content storage unit 33 to be stored. Acquired scenes can be played back.

  Further, even when the communication state of the broadcast network 4 and the communication network 5 becomes poor, the scene stored in the content storage unit 33 may be set to be reproduced.

In the present embodiment, it may be set so that the playback unit 35 does not play back the scene stored in the content storage unit 33.
Even in this case, the selection unit 34 acquires the scene being received by the broadcast reception unit 31 and supplies the scene to the reproduction unit 35.

  Here, the operation processing steps of the selection unit 34 when the reproduction unit 35 does not reproduce the scene stored in the content storage unit 33 will be described based on the flowcharts of FIGS. 5 (A) and 5 (B). Note that the selection unit 34 performs the operations shown in FIGS. 5A and 5B in parallel.

The selection unit 34 checks whether the state of the broadcasting network 4 is good enough to enable broadcast reception at regular time intervals (step S51).
Here, when the state of the broadcast network 4 is good, the selection unit 34 instructs the broadcast reception unit 31 to perform broadcast reception processing and storage processing of the received content received by broadcast in the content storage unit 33. (Step S52).

Next, after the elapse of a predetermined time set in advance, it is checked again whether or not the state of the broadcasting network 4 is good (loop: to step S51).
Note that steps S51 and S52 are performed during broadcast transmission from the broadcast device 1 via the broadcast network 4.

  Further, the selection unit 34 investigates whether or not there is a scene that has been transmitted by broadcast but has not been saved in the content storage unit 33 due to a bad state of the broadcast network 4 (step S61: saved content investigation function). As a result, when there is a scene that has not been stored (broadcast) in the storage unit 33, the selection unit 34 determines whether the communication state of the communication network 5 is so good that unicast reception is possible. This is investigated (step S62).

  Here, when the state of the communication network 5 is so good that unicast reception is possible, the selection unit 34 stores the unicast reception process and the unicast received scene (content) in the content storage unit 33. The process is instructed to the communication receiver 32 (step S63).

Upon receiving this instruction, the communication receiver 32 receives the content transmitted from the recording device 2 via the communication network 5 and stores it in the content storage unit 33.
Next, when a predetermined time set in advance elapses, the stored content investigation function is executed (loop: to step S61).

  Here, the selection unit 34 is configured to perform the loop operation shown in steps S61 to S63 (FIG. 5B) in parallel with the broadcast reception by the broadcast reception unit 31 being performed. It is good. Further, when the broadcast reception by the broadcast receiving unit 31 is completed, the setting may be made to perform the loop operation shown in steps S61 to S63 (FIG. 5B).

  In addition, the loop operation shown in steps S61 to S63 (FIG. 5B) is performed only when the state of the communication receiving unit 32 is suitable for unicast reception regardless of the communication state in the communication network 4. There may be.

  Specifically, in order to avoid congestion of the communication network 4, for example, unicast reception is performed only when the communication network 4 is not used for purposes other than content reception, and the reception device 3 is battery-driven. In order to extend the battery driving time in the case of a type of device, the setting may be such that unicast reception is performed only when the remaining battery level is sufficient.

  As described above, in this embodiment, even in an environment where the communication state in a broadcast network or a communication network fluctuates, the receiving terminal 3 reliably saves all scenes of the broadcast content (stores and stores in the receiving device 3). To be able to).

[Description of Operation of First Embodiment]
Next, an outline of the overall operation of the first embodiment will be described.

First, the content data received by the broadcast receiving unit 31 and the communication receiving unit 32 are stored in parallel with the content storage unit 33 (content storage step), and the reception states in the broadcast receiving unit 31 and the communication receiving unit 32 are monitored ( Reception status monitoring process),
Next, the selection unit 34 selects the content data being received by the broadcast receiving unit 31, the content data being received by the communication receiving unit 32, and the content data stored in the content storage unit 33 based on the reception state monitoring result. Content data is selected and provided for continuous playback to the playback unit 35 for continuous playback (content selection providing step).
Here, the content storage step, the reception state monitoring step, and the content selection requesting step may be executed by programming the execution contents.

  Next, the operation of the content receiving system according to the first embodiment will be described based on the flowchart of FIG.

The input unit 11 of the broadcasting device 1 takes in content from an arbitrary content source via the connection 1a and supplies the content to the broadcast transmission unit 12 via the connection 1b.
Here, it is assumed that the content is file data that is played back in time series, such as video and audio that are played back in streaming, music that is played back in streaming, and character strings that are displayed in time series.

  Also, the content source may be a storage device that stores pre-created content, a photographing device that sequentially captures and captures content, a device that receives content broadcast from another device, or the like. Good.

  Next, the broadcast transmission unit 12 broadcasts the supplied content via the broadcast network 4. The broadcast-transmitted content is received by the recording device 2 through the connection 4a and is also received by the receiving device 3 through the connection 4b.

Next, the broadcast receiving unit 21 of the recording device 2 receives (broadcast reception) the content broadcast from the broadcast device 1.
The broadcast receiving unit 21 supplies the received content to the content storage unit 22 via the connection 2a.
Here, the content storage unit 22 stores the supplied content in a preset recording medium.
In addition, when a unicast reception request is made from the receiving device 3 (described later), the communication transmission unit 23 retrieves the content from the content storage unit 22 via the connection 2b, and transmits the content via the connection 5a of the communication network 5. Then, unicast transmission to the receiving device 3 is performed.

  Note that the processing in the recording device 2 described above is executed in parallel with the processing in the broadcasting device 1 described above and the processing in the receiving device 3 described later.

The receiving device 3 operates based on an instruction from the selection unit 34.
Here, operation | movement of the selection part 34 of the receiver 3 is demonstrated based on the flowchart of FIG.
First, it is assumed that the selection unit 34 is investigating whether the state of the broadcast network 4 is good enough to enable broadcast reception (step S21).
Here, when the state of the broadcast network 4 is good, the selection unit 34 instructs the broadcast reception unit 31 to perform broadcast reception of the content and execution of storage processing of the received content in the content storage unit 33. (Step S22).

Next, the selection unit 34 checks whether the scene reproduced by the reproduction unit 35 has been stored in the content storage unit 33 via the connection 3e (step S23).
Here, when the scene played back by the playback unit 35 has been stored in the content storage unit 33, the selection unit 34 sends the scene stored in the content storage unit 33 to the playback unit 35 through the connection 3 e and the connection 3 f. (Step S24).

  In addition, the scene that is broadcasted by the broadcast receiving unit 31 and is played back by the playback unit 35 is the same as the scene that is being received by the broadcast receiving unit 31 (step S25). When the scene stored in 33 is not reproduced, the selection unit 34 supplies the scene being received by the broadcast reception unit 31 to the reproduction unit 35 through the connection 3c and the connection 3f (step S26).

  Here, when the selection unit 34 supplies either the scene stored in the content storage unit 33 or the scene being broadcasted by the broadcast reception unit 31 to the reproduction unit 35, the selection unit 34 sets the connection 3d. Then, it is investigated whether or not unicast reception is being executed by the communication receiver 32 (step S30).

At this time, if unicast reception is being performed, the selection unit 34 instructs the communication reception unit 32 to stop unicast reception via the connection 3d (step S31).
Thereby, the communication receiver 32 stops unicast reception (unicast reception suppression control function).

  If the scene being broadcast is not a scene played back by the playback unit 35 and the scene to be played back is not stored in the content storage unit 33, the selection unit 34 is able to receive unicast. Whether the communication state in the communication network 5 is good is investigated (step S27).

If the state of the communication network 5 is good, the selection unit 34 instructs the communication reception unit 32 to perform unicast reception and storage processing of the received content in the content storage unit 33 (step S28). .
Receiving the instruction, the communication receiving unit 32 unicasts the content from the recording device 2 via the connection 5 a and stores it in the content storage unit 33.
Here, the selection unit 34 supplies the scene being unicast received by the communication reception unit 32 to the reproduction unit 35 through the connection 3d and the connection 3f (step S29).

  Next, when a predetermined time has elapsed, or when the scene played back by the playback unit 35 is updated by a user operation (seek or the like), the selection unit 34 changes the state of the broadcast network 4. (Loop: go to step S21).

By executing the processing of step S21 to step S31, the playback unit 35 receives the scene being broadcast received by the broadcast receiving unit 31, the scene being unicast received by the communication receiving unit 32, or Any of the scenes stored in the content storage unit 33 is supplied.
The reproducing unit 35 outputs the supplied scene to a preset display or speaker via the connection 3g and reproduces it.
Here, as described above, the state of the receiving device 3 includes whether broadcast reception or unicast reception is performed, a scene supplied to the playback unit 35 during broadcast reception, unicast reception scene, or It is classified into six types of states A to F depending on which one of the scenes has been saved (FIG. 3).

FIG. 4 shows an example of transition among states A to F.
Here, the case where (one seg broadcasting station, time shift server, one seg compatible mobile phone) is used as a combination of (broadcasting device 1, recording device 2, receiving device 3) in the present embodiment is illustrated.

Here, the operation of the receiving device 3 when the states A, F, C, and B among the states A to F in the receiving device 3 transition in this order will be described with reference to FIG.
Here, a case where a one-segment broadcasting station of the broadcasting apparatus 1 in the present embodiment, a time shift server as the recording apparatus 2, and a one-seg compatible mobile phone as the receiving apparatus 3 are respectively used are shown. In addition, it is assumed that the position of the receiving device 3 (one-seg compatible mobile phone) is moving with the movement of the user who is the holder of the receiving device 3.

  First, when the receiving device 3 is located on the ground where the communication state of the broadcast network 4 and the communication network 5 is good, the scene transmitted from the broadcast device 1 and received by the broadcast receiving unit 31 is reproduced by the reproducing unit 35. Since the scene is common, as shown in FIG. 4, the scene broadcast-received by the broadcast receiving unit 31 is played back by the playback unit 35 ((1): state A in FIG. 3).

  Next, when the position of the receiving device 3 moves to the underground where the communication status of the broadcasting network 4 and the communication network 5 is poor, the receiving device 3 cannot receive the scene and cannot reproduce the scene ((2 ): State F) in FIG.

Thereafter, when the communication state of the broadcast network 4 and the communication network 5 is restored to the good state due to the position of the reception device 3 moving to the ground (3), at this point in time, reproduction is performed by the reception device 3 (reproduction unit 35). The scene to be played is in a state of being delayed from the scene (real time scene) broadcasted by the broadcast receiving unit 31.
At this time, the receiving device 3 receives the scene reproduced by the reproducing unit 35 from the communication network 5 by the communication receiving unit 32 by unicast reception.
At this time, the selection unit 34 investigates the communication state of the broadcast network 4, and when the communication state is recovered to the extent that broadcast reception is possible, the broadcast reception unit parallels the unicast reception by the communication reception unit 32. The broadcast reception by 31 is executed, and the broadcast-received scene is stored in the content storage unit 33 ((3): state C in FIG. 3).

Next, when the scene played back by the playback unit 35 catches up with the scene stored by the content storage unit 33, the selection unit 34 stops unicast reception by the communication reception unit 32 and is played back by the playback unit 35. The scene to be stored is switched to the scene stored in the content storage unit 33, and the selection unit 34 supplies the playback scene stored in the content storage unit 33 to the playback unit 35.
At this time, broadcast reception from the broadcast network 4 and storage processing of the broadcast-received scene in the content storage unit 33 are executed in parallel with the playback of the scene in the playback unit 35 ((4) : State B) in FIG.

  As described above, when a one-segment mobile phone is used as the receiving device 3, the position of the receiving device 3 often moves with the passage of time. For example, as described above, at the time when broadcast reception of content is started, (Broadcast network 4 and communication network 5 are both good), move to the basement after a certain period of time (both broadcast network 4 and communication network 5 are defective), and move to the ground after a certain period of time (= Broadcast network 4 and communication network 5 are both good) may be followed (FIG. 4).

  In such a case, according to the related technology, once it becomes (both the broadcast network 4 and the communication network 5 are defective), if the unicast reception from the recording device 2 is not continued thereafter, all scenes of the content are processed. I couldn't play it.

  On the other hand, in the present embodiment, as described above, only the scenes in the section where both the broadcast network 4 and the communication network 5 are defective are unicast received, and the other scenes are broadcast received, and By playing back scenes stored in advance, all scenes included in the content can be played back stably.

  In addition, this does not increase the cost for maintaining the communication network and the recording device, and even when the state of the communication network deteriorates and the state of the broadcasting network improves, The scene can be delivered stably.

As described above, in this embodiment, the scenes received by the broadcast receiving unit 31 and the communication receiving unit 32 are reproduced and stored (stored) in parallel, and when the scene cannot be received, the previously stored scene is reproduced. By switching to, it is possible to reproduce the content giving priority to the reproduction of the scene received by broadcast.
In addition, the section (time) for playing a unicast-received scene can be shortened, and all the scenes included in the broadcast content, including the section that could not be broadcasted, can be played back more stably. can do.

Furthermore, in the receiving device 3, for example, video content (streaming video) that is required to be played back in real time, such as news video or sports broadcast video, is broadcast without making the user (viewer) aware of it. The content can be played back in a form closer to real time.
Furthermore, since the processing load on the communication receiving unit can be reduced, the costs on the communication network and the recording apparatus can be reduced.

[Embodiment 2]
Next, the content receiving system according to the second embodiment of the present invention will be described.
Here, the same reference numerals are assigned to the same portions as those of the first embodiment described above.
In the second embodiment, the device configuration part of the content receiving system has substantially the same configuration as that of the first embodiment described above, and the communication transmitting unit 36 is incorporated in the receiving device 3 in the first embodiment. It is different from the case of.

  The communication transmission unit 36 in the present embodiment is provided in the reception device 3 so as to be connected to the content storage unit 33 and the communication reception unit 32, and responds to requests sent from other reception devices via the communication network 5. Then, the content (scene) stored in the content storage unit 33 is acquired and returned via the communication network 5.

In general, when a certain content is broadcasted from a broadcasting device, the state of the broadcasting network to which different receiving devices for receiving the broadcast of the content are connected is different.
That is, for example, a situation may occur in which a broadcasting network around a certain receiving device is in a good state, but a broadcasting network around another receiving device is in a bad state.
In addition, the state of the broadcast network for each receiving device can change over time. This also occurs due to changes in the weather around the receiving device and movement of the receiving device.

  Therefore, at the stage where the broadcast receiving process (FIG. 5) is performed in each receiving device, the content storage unit (corresponding to 33) set in each receiving device has a state in which different scenes are stored in each. Arise.

  Here, when the selection unit 34 detects that a scene to be supplied to the reproduction unit 35 (scene reproduced by the reproduction unit 35: hereinafter referred to as “reproduction scene”) is not stored in the content storage unit 33, communication is performed. A reproduction scene acquisition request is sent to the transmission unit 36.

In response to the acquisition request from the selection unit 34, the communication transmission unit 36 transmits a playback scene acquisition request to another receiving device via the communication network 5 (playback scene acquisition request function).
Here, the transmission destination of the reproduction scene acquisition request by the communication device unit 36 may be a different reception device connected to the communication network 5 and set in advance.

  When receiving a playback scene acquisition request sent from another receiving device, the communication receiving unit 32 notifies the communication transmitting unit 36 of this, and the communication transmitting unit 36 responds to the content of the playback scene acquisition request. The corresponding playback scene is acquired from the content storage unit 33, and the playback scene is transmitted to the receiving device (here, the “other receiving device”) that is the transmission source of the playback scene acquisition request.

Here, it is assumed that the selection unit 34 of the reception device 3 performs control to store the reproduction scene sent from the other reception device to the communication reception unit 32 in the content storage unit 33 in the reproduction unit 35.
Further, the selection unit 34 may supply a playback scene sent from another receiving device to the communication receiving unit 32 to the playback unit 35, and the playback unit 35 may play it back.

As a result, the content (scene) stored in the content storage unit (corresponding to 33) is shared between the receiving devices connected to each other via the communication network 5, for example, by a method such as a wireless LAN ad hoc mode. Thus, another receiving device connected via the communication network 5 can be used as a supply source of a specific scene like a recording device.
For this reason, the receiving device can complementarily acquire contents (scenes) that could not be acquired due to a change in the communication state of the broadcast network and the communication network from different receiving devices via the communication network 5, and can store or reproduce the content. it can

  As described above, in the present embodiment, the receiving apparatus performs communication without using the content (scene) sent from the dedicated recording apparatus (corresponding to 2) in an environment where the state of the broadcasting network or the communication network fluctuates. By acquiring an arbitrary content (scene) from another receiving device via the network 5, it is possible to acquire (receive) all scenes of the broadcasted content.

[Embodiment 3]
Next, the content receiving system according to the second embodiment of the present invention will be described.
Here, the same reference numerals are assigned to the same portions as those of the first embodiment described above.
In the third embodiment, the device configuration part of the content receiving system has almost the same configuration as that of the first embodiment, and the use content storage unit 24 is incorporated in the recording device 2 in the first embodiment. This is different from the case of 1.

As shown in FIG. 6, the use content storage unit 24 in the present embodiment is provided by connecting to the content storage unit 22 and the communication transmission unit 23 via the connection 2 c, Assume that a specific scene (specific scene) preset according to the position of the receiving device 3 is stored (specific scene holding function).
It is assumed that the specific scene is a scene set in accordance with the preference of the user of the receiving device 3 to which the specific scene is sent, the position of the receiving device 3, and the like.

  Further, the communication transmission unit 23 transmits the specific scene stored in the use content storage unit 24 to the reception device 3 via the communication network 5 before the ear transmission / reception unit 21 receives the content (broadcast reception). Specific scene transmission function.

As a result, the receiving device 3 unicasts a specific scene set in advance according to the preference of the user of the receiving device 3 and the position of the receiving device 3 prior to receiving the broadcasted content. be able to.
As a result, the receiving device 3 can reproduce a specific scene that is content unique to each receiving device.

Here, the operation of the present embodiment will be described with reference to FIGS.
The selection unit 34 of the reception device 3 instructs the communication reception unit 32 to perform unicast reception processing of a specific scene and storage processing of the received specific scene in the content storage unit 33.

  Next, the communication receiver 32 receives the specific scene sent from the recording device 2 (communication transmitter 23) via the communication network 5 and stores it in the content storage unit 33 (specific scene storage function). .

Note that the specific scene storage function is executed before the start of broadcast reception in which the broadcast receiving unit 31 receives content broadcast from the broadcast device 1 via the broadcast network 4.
Thereby, before the broadcast transmission of the content by the broadcasting device 1 starts, the scene optimized for each receiving device is stored in advance in the content storage unit of each receiving device.

In addition, the selection part 34 of the receiver 3 in this embodiment operate | moves similarly to Embodiment 1 (FIG. 2).
In the case of the present embodiment, in step S23 for determining “is the scene to be played back by the playback unit already saved in the content storage unit 33?” In the flowchart of FIG. Since the specific scene is pre-stored in the content storage unit 33, in step S23, when the specific scene is stored in advance in the content storage unit 33 instead of the content received and stored by broadcast, the selection unit 34 Supplies this specific scene to the playback unit 35 (step S24).

In the first embodiment, when both the broadcast network 4 and the communication network 5 are in a bad state, and no playback scene is stored in the content storage unit 33, the content (scene) is supplied to the playback unit 35. There may be cases where it is not done.
On the other hand, in the present embodiment, it is assumed that a specific scene received and stored in advance by unicast is supplied to the playback unit 35.

  Note that streaming video and audio are set as the format of the content (specific scene) stored in advance in the used content storage unit 24 in the present embodiment.

  For example, as a streaming video, a CM (commercial message) set according to the preference of the user of each receiving device, the position of each receiving device, and the like is stored in the used content storage unit 24, and the broadcasting device 1 Before the broadcast transmission of the content is performed, this CM is unicast transmitted to each receiving apparatus.

  As a result, the specific scene as the pre-unicast reception content from the recording device 2 is stored in the content storage unit 33 of the reception device 3, and the reception device 3 broadcast-receives the broadcast content from the broadcast device 1 in this state. .

  Here, for the broadcast received content from the broadcasting device 1, for example, it is assumed that a CM common to all the receiving devices (hereinafter referred to as "common CM") set in advance for this content is set (see FIG. 7 top).

Here, when the specific scene is stored in the content storage unit 33 in advance, the selection unit 34 replaces the common CM with the specific scene and transmits the broadcast received content to the playback unit 35. (Lower part of FIG. 7: optimized scene replacement function).
For this reason, CMs (commercial messages) set in accordance with the user preference of each receiving device, the position of each receiving device, and the like (contents played back) by the receiving device 3 (common CM) Inserted) (FIG. 7).
Accordingly, in the present embodiment, information (specific scene) corresponding to the user's preference, the position of each receiving device, and the like can be provided to the user of the receiving device when viewing the content.

  The present invention can be usefully applied to a content providing system that provides digital content to a user by a combination of a digital broadcasting service and a large-capacity wireless communication service.

DESCRIPTION OF SYMBOLS 1 Broadcasting device 2 Recording device 3 Receiving device (content receiving device)
4 broadcast network 5 communication network 11 input unit 21 broadcast reception unit 22 content storage unit 23 communication transmission unit 24 use content storage unit 31 broadcast reception unit 32 communication reception unit 33 content storage unit 34 selection unit 35 reproduction unit

Claims (11)

A broadcast receiving unit for receiving content data sent via a broadcast network, a communication receiving unit for receiving content data sent via an Internet network, and a playback unit for playing back the received content data Content receiving device,
A content storage unit for acquiring and storing each of the content data received by the broadcast receiving unit and the communication receiving unit;
Content data for continuous playback of the content data in the playback unit is selected from the content data received in the broadcast receiving unit, the content data received in the broadcast receiving unit, and the content data stored in the content storage unit. A content receiving apparatus comprising: a reproduction content selection unit that selects and provides to the reproduction unit. The content receiving device according to claim 1,
The playback content selection unit includes a missing content detection function for detecting missing content indicating content data not received by the broadcast receiving unit,
The content reception apparatus, wherein the communication reception unit includes a content selection acquisition function for acquiring the missing content via the Internet network. The content receiving device according to claim 2,
A content request unit that detects content data that is not stored in the content storage unit and requests the detected content data from another content receiving device connected via the Internet;
A content receiving apparatus comprising: a request content reply unit that transmits content stored in the content storage unit in response to a request from the other content receiving apparatus. The content receiving device according to claim 1,
The playback content selection unit
A received content monitoring function for monitoring playback content indicating content data newly played by the playback unit and stored content indicating content data newly stored in the content storage unit;
A stored content priority supply function that preferentially selects the stored content and supplies it to the playback unit when the communication content that is content data newly received by the communication receiving unit and the stored content are common contents; A content receiving apparatus comprising: The content receiving device according to claim 4,
The reproduction content selection unit performs control to suppress reception of content data in the communication reception unit when the communication content which is content data newly received by the communication reception unit and the stored content are common contents. A content receiving apparatus comprising a function for suppressing communication reception to be performed. The content receiving device according to claim 1,
The playback content selection unit
A received content monitoring function for monitoring playback content indicating content data to be played back by the playback unit and stored content indicating content data newly stored in the content storage unit;
A stored content priority playback function that preferentially selects the stored content and supplies the stored content to the playback unit when the broadcast content that is content data newly received by the broadcast receiving unit is different from the stored content; A content receiving apparatus characterized by the above. The content receiving device according to claim 1,
The playback content selection unit
A received content monitoring function for monitoring playback content indicating content data to be played back by the playback unit and stored content indicating content data newly stored in the content storage unit;
The broadcast content, which is content data newly received by the broadcast receiving unit, is higher than a predetermined value that is a reception rate indicating the amount of content data received per unit time in the broadcast receiving unit, and the stored content is common. A content receiving apparatus having a broadcast content priority reproduction function that preferentially selects the broadcast content and supplies the broadcast content to the reproduction unit when the content is content. A content transmitting device for transmitting preset content data via a broadcast network; a content recording device for storing content data received via the broadcast network and transmitting the stored content data to the Internet network; A content receiving system including a content receiving device including a reproducing unit that obtains the content data by connecting to the broadcasting network and the Internet network and reproduces the content data,
The content receiving device is:
A content storage unit for acquiring and storing each of the content data received by the broadcast receiving unit and the communication receiving unit;
Content data for continuous playback of the content data in the playback unit is selected from the content data received in the broadcast receiving unit, the content data received in the broadcast receiving unit, and the content data stored in the content storage unit. A content reception system comprising: a reproduction content selection unit that selects and provides the reproduction unit to the reproduction unit. The content receiving system according to claim 8, wherein
The content recording device includes a specific data transmitting unit that transmits preset specific data to the content receiving device via the Internet before the content data is received by the content receiving device.
The reproduction content selection unit of the content receiving device is:
A content receiving system having a specific data insertion function of inserting the specific data sent from the content recording device to the communication receiving unit into content data and providing the content data to the reproducing unit. A broadcast receiving unit for receiving content data sent via a broadcast network, a communication receiving unit for receiving content data sent via an Internet network, and a playback unit for playing back the received content data A content receiving method for continuously reproducing the content data, comprising:
Each of the broadcast receiving unit and the communication receiving unit receives the content data,
A content storage unit set in advance stores the content data,
Content data for continuous playback of the content data in the playback unit is selected from the content data received in the broadcast receiving unit, the content data received in the broadcast receiving unit, and the content data stored in the content storage unit. Select and provide to the playback unit,
The content receiving method, wherein the reproducing unit reproduces the content data. A broadcast receiving unit for receiving content data sent via a broadcast network, a communication receiving unit for receiving content data sent via an Internet network, and a playback unit for playing back the received content data A content receiving program for continuously reproducing the content data, comprising:
A content reception processing function in which each of the broadcast reception unit and the communication reception unit performs the content data reception processing;
A content storage processing function for performing processing for storing the content data in a preset content storage unit;
Content data for continuous playback of the content data in the playback unit is selected from the content data received in the broadcast receiving unit, the content data received in the broadcast receiving unit, and the content data stored in the content storage unit. A content selection function to be selected and provided to the playback unit;
A content receiving program which is executed by a computer set in advance.

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