KR20000010145A - Pre-engaged recording device of a digital broadcasting system and a pre-engaged recording method thereof - Google Patents

Abstract

PURPOSE: A pre-engaged recording device is provided to allow viewers see the brief description of the recorded program, search programs easily and manage the recorded VCR tape in which variety of programs are recorded easily by adding index to the each of the recorded program. CONSTITUTION: The device of a digital broadcasting system and a pre-engaged recording method thereof comprises a digital broadcasting receiver which transmits the video or audio signal of the pre-engaged program, which transmits the intelligent information registered at the pre-engaged program list before the pre-engaged time and a record revival device(200) which records the audio or video signal received from the digital broadcasting receiver(100) at the recorder after recording the intelligent information.

Description

Reservation recording device and reservation recording method of digital broadcasting system

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reservation recording apparatus and a reservation recording method of a digital broadcasting system. More specifically, the present invention relates to a home multimedia system configured with a recording / playback device or a digital television using an electronic program guide (EPG). The present invention relates to a reserved recording apparatus and a reserved recording method of a digital broadcasting system for recording before a reserved program recording detailed information of a designated program as a title when a reserved recording is performed on a storage medium.

The reservation recording system currently used for the reservation recording method was a simple system in which a VCR, a recording / playback device, was connected to a television. In the above-described reserved recording system, there are several different ways to reserve recorded broadcast programs desired by the viewer.

First, the viewer may input a broadcasting channel, a program start time, and an end time of a broadcast program to be reserved by using a remote controller according to a menu while displaying a menu screen for reserved recording on a television screen.

Secondly, in case of broadcasting by assigning G (GemStar) code, which is a unique code for each broadcasting program, when a viewer inputs a key signal for reservation recording through a remote controller and enters the G code of the broadcasting program, the television is provided on a television. The microcomputer analyzes the G code to recognize the broadcast program that the viewer wants to reserve.

Third, the reservation information of the broadcast program is listed in the blanking section of the existing analog broadcast signal so that it is transmitted together with the broadcast signal, so that the viewer can indirectly use the reserved recording.

When the viewer selects the reserved recording program according to the above-described method, the microcomputer included in the television counts the start time of the reserved broadcast program, and when the program start time reaches, the broadcast channel of the reserved program is tuned. The broadcast signal received through the received channel is signal-processed, and the signal-processed video signal and audio signal are output.

The video and audio signals output from the television are input to the recording / reproducing apparatus, and the input video and audio signals are recorded on a storage medium provided in the recording / reproducing apparatus.

However, when a scheduled recording of a broadcast program is performed by the above-described method, a detailed index of the recorded program, i.e., no information such as a brief description of the reserved program, a title, a broadcast time, and a broadcast station name, is recorded. Not only is it difficult to classify, but there is a problem that viewers cannot memorize each other when various kinds of programs are recorded in one storage medium.

Accordingly, an object of the present invention is to add an index for each program recorded on the VCR magnetic tape to solve the above-described problem, thereby providing the user with detailed information about the previously recorded program, and after recording Even after a long time, since the database contains information about all programs in the magnetic tape for recording, the program information is displayed as an indicator mark, and then the information of the recorded program in the mark part is displayed. The present invention provides a reservation recording apparatus and a reservation recording method of a digital broadcasting system that enable a user to easily re-edit or reuse a magnetic tape.

1 is a schematic block diagram for explaining the configuration of a digital broadcasting system for reservation recording according to the present invention;

2 is a flowchart illustrating an operation of a digital broadcasting receiver when a user applied to FIG. 1 inputs a key signal for selecting a program for reserved recording;

3 is a flowchart illustrating an operation of a recording / reproducing apparatus for recording data input from a digital broadcast receiver according to the operation of FIG. 2.

* Description of Signs of Main Parts of Drawings *

100: digital broadcast receiver 110: data separation unit

120: OSD unit 130: video decoder

140: encoder 150: audio decoder

160: CPU 170: communication processor

200: recording and playback device 210: digital communication interface unit

220: control unit 230: OSD unit

240: storage medium

In the digital broadcasting system for displaying a video signal according to the present invention for achieving the above object, in the device of the present invention when the user selects a program for reservation recording among the program information displayed on the screen of the video display device Digital broadcasting receiver that registers frequency, multiplexing, and intelligent information of selected program in reservation program list, transmits the intelligent information registered in reservation program list before reservation time, and transmits video and audio signal of actual program when reservation time is reached. And converts the intelligent information transmitted from the digital broadcasting receiver into OSD characters, displays for a predetermined time, records the information in a storage medium, and records the video and audio signals received from the digital broadcasting receiver after recording the intelligent information on the storage medium. Characterized by consisting of a recording and reproducing device.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic block diagram illustrating a configuration of a digital broadcasting system for reservation recording according to the present invention.

As shown, in the digital broadcasting system for displaying a video signal on the screen, the digital broadcasting receiver 100 when the user selects a predetermined program from among the program information displayed on the screen for reserved recording, the frequency of the selected program After registering the multiplexing and intelligent information in the reservation program list, the intelligent information registered in the reservation program list is transmitted before the reservation time, and when the reservation time is reached, the video and audio signal of the reserved program is recorded and reproduced (200). To send).

The recording and reproducing apparatus 200 converts the intelligent information transmitted from the digital broadcasting receiver 100 into OSD characters, displays them for a predetermined time, and then records them on a recording medium. After recording the intelligent information, the video received from the digital broadcasting receiver 100 is recorded. And a recording / playback device 200 for recording the audio signal on the recording medium.

The digital broadcast receiver 100 may include a data separator 110 for separating video information, audio information, and program information from a data packet of a transport bitstream received, and program information input from the data separator 110. OSD unit 120 for converting and outputting OSD characters, video decoder 130 for decoding video information input from data separating unit 110, OSD input from OSD unit 120 and video decoder 130 An encoder 140 that encodes a character and a decoded video signal to be the same as a television broadcast signal, and outputs a synthesized video signal, and an audio decoder that decodes audio information input from the data separator 110 and outputs an analog audio signal. 150 and a program to be scheduled-recorded by the remote control signal for program selection transmitted according to the user's operation is selected. In the case of registering the frequency, multiplexing and intelligent information of the selected program among the program information separated from the data separator in the reservation program list, and transmits the intelligent information registered before a predetermined time before the reservation recording time is completed, the control program is transmitted. And a communication processor 170 which transmits the intelligent information output from the CPU 160 to the storage means, and transmits a program selection remote control signal transmitted by the user's operation to the CPU.

The recording and reproducing apparatus 200 described above is input through a digital communication interface 210 and a digital communication interface 210 for receiving a control signal and intelligent information according to a reservation recording transmitted from the digital broadcast receiver 100. The entire system is switched to the reserved recording mode according to the reserved recording control signal, and the control signal for displaying the intelligent information input through the digital communication interface unit 210 as the recording control signal and the OSD text is output, and the digital The controller 220 outputs a video signal and an audio signal recording control signal received from the broadcast receiver 100, and converts intelligent information into OSD text according to the control signal for displaying the OSD text in the controller 220. Intelligent information is recorded according to the OSD unit 230 and the recording control signal of the controller 220, and digital broadcasting is received. And a storage medium 240 for recording the video and audio signals input from the device 100.

The recording and reproducing apparatus 200 described above is a VCR, and the storage medium is a magnetic tape, but the recording and reproducing apparatus 200 described above is a device capable of digital communication with the digital broadcast receiver 100. Examples include PCs and camcorders.

The above intelligent information is a program title, a broadcasting station, a start time and end time of the program, a brief plot of the program, and the like.

The reception operation of the digital broadcasting system having the above configuration will be briefly described as follows.

First, before describing the reception operation of the digital broadcast receiver 100, the received broadcast signal will be briefly described. The received broadcast signal is a broadcast signal encoded by MPEG2 and is generated by several broadcast stations in one channel band. Multiplexes the signal and transmits it in the bitstream.

In this case, the EPG information is included in the broadcast program so that the user can easily select the program. Detailed description of the EPG information will be described later.

Meanwhile, the digital broadcast receiver 100 separates a video signal, an audio signal, and additional information through the data separating unit 110 with respect to a broadcast program that is received as a bitstream. Through 120, the text is converted into OSD characters and displayed on a television screen as a schedule table of a program for viewers to see.

When the viewer selects a channel through the remote controller using the above-described schedule table of the broadcast program, the digital broadcast receiver 100 receives a PAT (Program Association Table) of the repeater currently being received.

If there is a channel selected by the viewer from the received PAT, a PMT (Program Map Table) in the PAT is received. The transport stream packet having a basic PID (Packet Identifier) corresponding to the program number selected by the viewer in the received PMT is separated through the data separator 110, and then the video decoder 130 and the audio decoder 150, respectively. Decode it by outputting

As described above, in case of broadcasting using MPEG2, a transport bitstream is suitable as a multiplexing scheme. The basic data unit of the transport bitstream is a transport packet having a fixed length of 188 bytes. All information is transmitted by this packet, regardless of the input signal of the voice data.

In the case of realizing digital multi-channel broadcasting by a communication satellite in this manner using MPEG2, video and audio signals of various programs are time-division multiplexed, and the transport streams are simultaneously transmitted by the number of repeaters. Therefore, since the number of programs itself increases, the tuning operation for the program which the viewer wants to watch is complicated.

Program specification information called PSI (Program Specific Information) is provided in MPEG2 to receive additional information on the multiplexing program transmitted from the transmitting side in such a complex system and to realize simple tuning operation and program selection. Is composed of data such as PAT and PMT as described above.

In addition, in digital multi-channel broadcasting realized by the MPEG2 system, various services by the transmission of additional data are expected. A representative example here is EPG. In DVB (Digital Video Broadcasting), various SIs (Service Information) are added to PSI and used for the purpose of EPG.

In other words, program information of a conventional television broadcast was generally supplied to publications such as newspapers, televisions and magazines, but in digital multi-channel broadcasting, dozens to hundreds of channels are provided as programs, which increases viewers' choice and program selection. More complicated.

In such digital multi-channel broadcasting, the above-described EPG, which provides a program schedule table, information on the contents of each program, and the like as one of data services, is considered as one of basic services.

Currently, the concept of EPG is becoming more and more general, but the information and data structure to be dealt with are different according to the size and requirements of each broadcasting system. In general, a channel number, a program name, a schedule table, and the like, which are transmitted as data, are changed into a program schedule table having a time axis and a channel axis by EPG software of a receiver and displayed on a television screen.

Furthermore, in the displayed program schedule table, the user can use the remote control to move the cursor to tune the program directly, or perform a function such as viewing a reservation and recording a reservation. In this case, the EPG not only displays program introduction information such as a plot or performer in a program such as a movie, but also provides a program schedule table for several days instead of just one day. Program information is recorded on a storage medium before recording a program.

A method of making a reservation recording using the reservation recording apparatus of the digital broadcasting system according to the present invention configured as described above will be described in more detail with reference to the accompanying drawings.

2 is a flowchart illustrating an operation of a digital broadcast receiver when a user applied to FIG. 1 inputs a key signal for selecting a program for reserved recording.

As shown, the OSD unit 120 converts the information of the program separated by the data separating unit 110 into OSD characters to be displayed on the television screen for viewing by the viewer (S210), and among the displayed programs In operation S220, it is determined whether a key signal inputted by the user for reservation recording of the program exists.

As a result of the determination in step S220, when there is a key signal input by the user, the frequency, demultiplexing, and intelligent information of the selected program are registered in the reserved program list (S230).

After performing step S230, the reserved recording standby mode control signal is transmitted to the recording / playback device 200 through the communication processor 170 (S240). After transmitting the control signal, the digital broadcast receiver 100 starts counting the reservation time for reservation recording (S250).

In operation S250, it is determined whether the counted time coincides with the set reserved recording time (S260). If the determination result matches the reserved recording time, the digital broadcast receiver 100 is tuned to tune the reserved recording program. Set up, and transfer the received reservation program to the recording and playback device (200) (S270), and if it does not match the reservation recording time, it is determined whether the counting time in step (S250) is 1 minute before the scheduled recording (S280) )do.

As a result of the determination of step S280 described above, in the case of one minute before the reservation recording, the intelligent information registered in the reservation program list is transmitted to the recording / playback device 200 (S290).

3 is a flowchart illustrating an operation of a recording / reproducing apparatus for recording data input from a digital broadcast receiver according to the operation of FIG. 2.

As shown, it is determined whether there is a standby mode switch signal for reserved recording received from the digital broadcast receiver 100 (S300). The device 200 is switched to the standby mode (S310).

After performing the above-described step (S210), it is determined whether there is intelligent information received from the digital broadcasting receiver 100 (S320), and if there is intelligent information received as a result of the determination, the intelligent information is converted into OSD characters and then displayed. Record for a predetermined time (S330).

In operation S330, the intelligent information is recorded on the storage medium 220, and then it is determined whether there is a video and audio signal for the actual program received at operation S340. If there is a received video and audio signal as a result of the determination, the video and audio signals of the received program are recorded in real time on the storage medium 220 (S350).

Among the above-described recording and playback devices, the VCR will be used as a home audio / video storage medium even in a digital broadcasting system. In the case of existing products, an indicator mark can be displayed to easily search for each program.

Therefore, as described above, the present invention can add an index for each recorded program to the storage medium of the recording / playback apparatus, so that the viewer can see brief description information about the recorded program. Not only can the program be easily searched for, but it also makes it easier to manage storage media such as VCR tapes with multiple programs recorded.

Claims (6)

In a digital broadcasting system for displaying a video signal on the screen, If the user selects a reserved recording program among the program information displayed on the screen, the frequency, multiplexing, and intelligent information of the selected program is registered in the reserved program list, and the intelligent information registered in the reserved program list is transmitted before the reserved time, and the reserved A digital broadcast receiver for transmitting video and audio signals of the reserved program when the time comes; And The intelligent information transmitted from the digital broadcasting receiver is implemented as OSD characters, displayed for a predetermined time, and then recorded on a recording medium, and recording and reproducing the video and audio signals received from the digital broadcasting receiver on the recording medium after recording the intelligent information. Reservation recording apparatus for a digital broadcasting system, characterized in that consisting of equipment. The digital broadcasting receiver of claim 1, further comprising: a digital broadcasting receiver; A data separator that separates video information, audio information, and program information from the received transport bitstream; An OSD unit for converting program information input from the data separator into an OSD character and outputting the OSD character; A video decoder for decoding video information input from the data separator; An encoder for outputting a synthesized video signal by encoding the OSD character and the decoded video signal inputted from the OSD unit and the video decoder to be identical to a television broadcast signal; An audio decoder which decodes audio information input from the data separator and outputs an analog audio signal; If a program to be reserved and recorded is selected by a remote control signal for program selection transmitted according to a user's operation, the frequency, multiplexing, and intelligent information of the selected program among the program information separated from the data separator is registered in the reserved program list. A CPU for controlling the transmission of the reservation program after transmitting the intelligent information registered before the reservation recording time completion time; And And a communication processor for transmitting intelligent information output from the CPU to a storage means, and for transmitting a program selection remote control signal transmitted by a user's operation to the CPU. The apparatus of claim 1, wherein the recording and reproducing apparatus; A digital communication interface unit for receiving the control signal and the intelligent information according to the reservation recording transmitted from the digital broadcast receiver; According to the reservation recording control signal input through the digital communication interface unit, the entire system is switched to the reservation recording mode, and the control signal for displaying the intelligent information input through the digital communication interface unit as a recording control signal and OSD characters. A control unit which outputs a control signal for recording a video signal and an audio signal received from a digital broadcast receiver; An OSD unit for converting and outputting intelligent information into OSD characters according to a control signal for displaying the OSD characters of the controller; And And a storage medium for recording the intelligent information according to the recording control signal of the control unit and for recording the video signal and the audio signal input from the digital broadcast receiver. 4. The method of claim 1, wherein the intelligent information comprises; A recording device of a digital broadcasting system, characterized by a program title, a broadcasting station, a start time and an end time of a program, and a brief plot of the program. A first step of converting information of a program separated by the data separator into OSD characters and displaying the same for viewing by a viewer; A second step of determining whether there is a key signal input by a user for reserved recording of a predetermined program among the programs displayed in the first step; A third step of registering the frequency, demultiplexing, and intelligent information of the selected program in the reserved program list when there is a key signal input by the user as a result of the determination of the second step; A fourth step of transmitting a reserved recording standby mode control signal to a recording / playing device through a communication processor after performing the third step; A fifth step of counting a reservation time for reservation recording after performing the fourth step; A sixth step of judging whether or not the time counted in the fifth step coincides with the preset scheduled recording time; As a result of the determination of the sixth step, if the schedule recording time coincides, the system is set up for tuning of the reserved recording program, and the received reserved program is transmitted to the recording / playback device; and if the schedule recording time does not match, the fifth step A seventh step of determining whether the time being counted in is one minute before the scheduled recording; And And an eighth step of transmitting the intelligent information registered in the reserved program list to the recording / reproducing device in the case of one minute before the reserved recording in the seventh step. A first step of determining whether there is a standby mode switch signal for reserved recording received from the digital broadcast receiver; A second step of switching the system to standby mode for reserved recording when there is a signal for standby mode switching as a result of the determination of the first step; A third step of determining whether there is intelligent information received from the digital broadcast receiver after performing the second step; A fourth step of converting and displaying the intelligent information into the OSD character and recording for a predetermined time when there is the intelligent information received as a result of the determination of the third step; A fifth step of determining whether there is a video and audio signal for an actual program received after performing the fourth step; And And a sixth step of recording the video and audio signals of the received program on a storage medium in real time when there are received video and audio signals as a result of the determination in the fifth step.