JP4869174B2 - Recording / reproducing apparatus and recording / reproducing method - Google Patents

Description

  The present invention relates to a recording / reproducing apparatus and a recording / reproducing method, and more particularly to a technique suitable for use in displaying a representative image.

  In recent years, recording media capable of random access, such as optical disks such as DVD (Digital Versatile Disc) and magnetic disks such as HDD (Hard Disc Drive), have been increasing in recording capacity and price. As a result, not only personal computers but also various electronic devices have been equipped with such recording media. Specifically, for example, portable electronic cameras, stationary HDD recorders, and devices for recording still images and moving images have been commercialized.

  In a random accessible recording medium, for example, a DVD, a meandering track (wobble) at a predetermined frequency is embedded to indicate a physical position (physical address) on the recording medium, and a pit called a pre-pit is predetermined. It is embedded at intervals. By recognizing the physical address based on these wobbles and prepits, random access on the recording medium becomes possible.

  In addition, in a recording medium that is recorded by being grouped for each predetermined amount of information, it is possible to randomly access the top information or information that serves as a group mark for each group. For example, when image information is recorded on a recording medium, only representative image data for each group can be reproduced, and only the representative image can be displayed on the display device.

  As a technique for reproducing representative image data in this way, for example, Patent Document 1 discloses a technique for acquiring representative image data in a disc reproducing apparatus capable of intermittent reproduction from a recording medium. The disc playback apparatus described in Patent Document 1 reads playback image data from a recording medium during a normal playback operation (during playback of moving image data), and during an intermittent period in which the normal playback operation is stopped. This is a device for reading only representative image data from a recording medium. As described above, since the representative image data is read and stored in the memory during the intermittent period in which the normal reproduction operation is stopped, when the second and subsequent reproduction operations are started, the display start response of the representative image is quickly sent. There is an effect that can be performed.

JP 2002-42422 A

  As described above, the disc playback apparatus described in Patent Document 1 can reduce the playback start time for the second and subsequent times. However, for example, in a portable recording / recording device (video camera) or the like, there are many situations in which playback is performed immediately after the recording operation is completed in order to check the recorded image. As described above, when the first reproduction is performed after the recording operation is completed, there is a problem in that the representative image cannot be displayed quickly.

  An object of the present invention is to make it possible to display a representative image promptly even after the recording operation is completed.

  The recording / reproducing apparatus of the present invention is a means for recording moving image data on a recording medium and reproducing the moving image data from the recording medium. The recording / reproducing apparatus applies to the recording medium from a recording start instruction to a recording stop instruction. Recording / reproducing means for recording the moving image data by alternately repeating a recording period for recording the moving image data and a stop period for stopping the recording of the moving image data, and using a part of the moving image data reproduced from the recording medium Generating means for generating representative image data of the moving image data, and displaying the representative image related to the representative image data on a display device; and the moving image in the stop period from a recording start instruction to a recording stop instruction Control means for controlling the recording / reproducing means so that a part of the data is reproduced from the recording medium and stored in the storage means, and the control means is instructed to stop the recording. After the recording of the moving image data is stopped, the representative image data generated by using the moving image data reproduced by the recording / reproducing means and stored in the storage means in the stop period in response to an instruction to switch to the reproduction mode. The generating means is controlled to display such a representative image.

  According to the recording / reproducing method of the present invention, a recording period for recording moving image data on a recording medium and a stop period for stopping recording of the moving image data are alternately repeated between a recording start instruction and a recording stop instruction. Recording the video data on the recording medium, recording and reproducing the video data from the recording medium, and generating representative image data of the video data using a part of the video data reproduced from the recording medium A part of the moving image data is reproduced from the recording medium in a generation step of displaying a representative image related to the representative image data on a display device and in the stop period between a recording start instruction and a recording stop instruction. Control step for controlling the recording / reproducing step so as to be stored in the storage means, and the control step reproduces after stopping the recording of the moving image data in response to the recording stop instruction. In response to the instruction to switch to the mode, the representative image related to the representative image data generated by using the moving image data reproduced by the recording / reproducing step and stored in the storage unit in the stop period is displayed. The production process is controlled.

  According to the present invention, the moving image data is reproduced from the recording medium during the period in which the recording operation is stopped, and the representative image data is generated using the reproduced moving image data. A representative image can be displayed.

(First embodiment)
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a block diagram illustrating a schematic configuration example of a recording / reproducing apparatus according to the present embodiment. In FIG. 1, the solid line indicates the flow of recorded data or reproduced data, and the broken line indicates the flow of control signals.

  In FIG. 1, a recording / reproducing apparatus 100 is loaded with a recording medium 1 which is a disk-shaped disk medium. The recording / reproducing apparatus 100 includes a head 2, a modulation processing unit 3, an error correcting code encoding unit (hereinafter referred to as an ECC encoding unit) 4, a data memory 5, an RF processing unit 6, and a demodulation processing unit. 7 is provided. Further, an error correction code decoding unit (hereinafter referred to as an ECC decoding unit) 8, an image processing encoding unit 9, an image processing decoding unit 10, a control unit 11, a servo head control unit 12, a motor control unit 13, A spindle motor 14, a display device 15, and an operation unit 17 are provided. In this embodiment, the head 2, the modulation processing unit 3, the ECC encoding unit 4, the RF processing unit 6, the servo / head control unit 12, the motor control unit 13, and the spindle motor 14 function as recording means. The head 2, the RF processing unit 6, the demodulation processing unit 7, the ECC decoding unit 8, the servo / head control unit 12, the motor control unit 13, and the spindle motor 14 function as reproducing means.

Hereinafter, the function of each configuration described above will be described. In the present embodiment, a DVD is used as the recording medium 1, but other recording media such as an optical disk and a hard disk can also be used.
When data is recorded on or reproduced from the recording medium 1, the spindle motor 14 rotates the recording medium 1. The motor control unit 13 performs rotation control at a constant speed or a constant acceleration. The head 2 includes an optical pickup (not shown), irradiates the recording medium 1 with a laser, and converts a reflected light signal from the recording medium 1 into an electric signal. The optical sensor of the optical pickup mainly uses a four-divided sensor and detects the reflected light signal by a push-pull method. The servo head controller 12 controls the position of the head 2 and performs motor control.

  When performing a reproduction operation, the RF processing unit 6 extracts a clock synchronized with the reproduction information from the reproduction information obtained by reproducing from the recording medium 1 using a PLL (Phase Locked Loop), and binarizes the reproduction information. To do. Further, when performing the recording operation, the modulation data (image data) modulated by the modulation processing unit 3 is output to the head 2.

  The demodulation processing unit 7 demodulates the data binarized by the RF processing unit 6 at the time of reproduction in a format according to the disk standard, and outputs the demodulated data (image data) to the ECC decoding unit 8. In the case of a DVD, the 8/16 demodulation standard is used. On the other hand, the modulation processing unit 3 modulates the image data output from the ECC encoding unit 4 at the time of recording in a format in accordance with the disc standard, and outputs the modulation data to the RF processing unit 6.

  The ECC decoding unit 8 includes a Reed-Solomon decoder (not shown) and performs error correction processing on the image data output from the demodulation processing unit 7. In this error correction process, it is possible to perform a random error correction process that is performed on errors that occur randomly in the image data, and a burst error correction process that is performed on errors that occur continuously. Note that the DVD also performs information descrambling. On the other hand, the ECC encoding unit 4 calculates an error correction parity code of the encoded data read from the data memory 5 according to the format of the same standard as the ECC decoding unit 8, and converts the calculated parity code into encoded data. Perform additional encoding processing. Note that the DVD also performs information scrambling.

  The operation unit 17 is provided with a power switch, a recording trigger, a recording mode / reproduction mode switching switch, a reproduction / stop switch, and the like, and instructions from the operation unit 17 are input to the control unit 11.

  The data memory 5 temporarily stores image data in order to perform signal processing, and stores a program of the control unit 11 and fixed parameters. The image data that has been subjected to error correction processing by the ECC decoding unit 8 is temporarily stored in the data memory 5 by the control unit 11 functioning as storage means, and the image processing decoding unit 10 is stored in the data memory 5. The obtained image data is decoded by the MPEG method or the like. The image processing decoding unit 10 functions as a display unit and outputs the reproduced image data to the display device 15. In the recording operation, when the recording information 16 is input to the recording / reproducing apparatus 100, the recording information 16 is temporarily stored in the data memory 5. Then, the image processing encoding unit 9 reads the recording information 16 from the data memory 5, performs information compression processing, and stores the information in the data memory 5 again. In addition, the control unit 11 controls processing control of each component, playback system operation, and recording system operation.

  Next, a processing procedure for reproducing representative image data during the intermittent recording operation in the present embodiment will be described. The intermittent recording operation will be described later. Further, the recording / reproducing apparatus 100 of the present embodiment will be described as constituting a part of a video camera, for example.

  When recording is started, the captured moving image data and audio data are converted from an analog electric signal to a digital signal by an A / D converter (not shown), and input to the recording / reproducing apparatus 100 as image information. Stored in The image information stored in the data memory 5 is compressed and encoded by the image processing encoding unit 9 and stored again in a predetermined location in the data memory 5.

  When a predetermined amount of compressed encoded data is accumulated in the data memory 5, the ECC encoding unit 4 starts reading the encoded data from the data memory 5. Then, a header such as management information and a data address is added and scramble processing is performed. Further, it is converted into a code with an error correction parity added such as a Reed-Solomon code conforming to the format of the recording medium 1 or a BCH code.

  Next, the modulation processing unit 3 modulates the image data converted by the ECC encoding unit 4 with a modulation method according to the format of the recording medium 1, and converts the modulated image data from digital to analog, The recording medium 1 is ready for recording. Then, the image data is sent to the RF processing unit 6.

  When recording image data on the recording medium 1, a control signal for recording is sent from the control unit 11 to the servo head control unit 12, and a recording command is sent from the servo head control unit 12 to the motor control unit 13 and the head 2. Is transmitted. The spindle motor 14 and the head 2 are moved to perform a predetermined recording operation, and image data is recorded on the recording medium 1.

  In the present embodiment, the data writing rate to the recording medium (disc) 1 is assumed to be several times (twice in this embodiment) the rate at which the encoded data is stored in the data memory 5. That is, the rate at which the encoded data is read from the data memory 5 is higher than the data rate of the image data encoded by the image processing encoding unit 9. The encoded data is stored in the data memory 5 while image data is being written to the recording medium 1. Therefore, in the present embodiment, reading of data from the data memory 5 is stopped when there is no encoded data stored in the data memory 5 after writing of data to the recording medium 1 is started. Pauses data writing. When a predetermined amount of encoded data is accumulated in the data memory 5, the writing process is started again. As described above, in this embodiment, the data writing period and the writing stop period alternately occur on the recording medium 1, and data is intermittently recorded on the recording medium 1.

  This write stop period is determined by the data rate of the encoded data, the write data rate for the recording medium 1, and the storage capacity of the data memory 5. That is, the write stop period becomes longer as the data rate of the encoded data is lower, the write data rate of the recording medium 1 is higher, and the capacity of the data memory 5 is larger.

  FIG. 2 is a diagram showing a temporal flow of the recording / reproducing operation in the present embodiment. FIG. 2A shows a state in which encoded data is continuously stored in the data memory 5. FIG. 2B shows a period in which image data is recorded on the recording medium 1, and an intermittent interval is provided to alternately generate a recording processing period and a recording stop period. In the present embodiment, as shown in FIG. 2D, a reproduction period for generating a representative image is provided during the recording stop period, and reproduction for generating representative image data from the recording medium 1 is performed. In this embodiment, data recorded during the recording process period is set as one group, and representative image data is reproduced for each group.

  Since the reproduction position of the recording medium 1 is different from the recording position, the head 2 must be moved (seek) to perform each process. FIG. 2C shows a period during which the head 2 seeks from the recording position to the reproduction position, and FIG. 2E shows a period during which the head 2 seeks from the reproduction position to the recording position.

  As shown in FIG. 2A, the encoded data is written in the data memory 5 even during the recording stop period. For this reason, in the video camera, when the head 2 is sought from the recording position to the reproduction position or from the reproduction position to the recording position, noise may be generated and the noise itself may be recorded as audio information. In a DVD, noises generated during a seek operation are mainly caused by vibration noise when the light irradiated from the head 2 passes through the wobble on the recording medium 1 and mechanical sound for causing the seek operation.

  Therefore, in this embodiment, in order to suppress vibration noise generated when the light emitted from the head 2 that passes during the seek period passes through the wobble on the recording medium 1, the head position and the recording medium 1 are not affected during the seek period. Do not control. In other words, the servo head controller 12 functions as a head controller, and seeks the head 2 while keeping the head position away from the recording medium 1. Thereby, it is possible to reduce vibration noise when the light irradiated from the head 2 passes through the wobble on the recording medium 1. Therefore, even if the seek operation is performed while the encoded data is stored in the data memory 5, noise is less mixed into the image data recorded on the recording medium 1, and the reproduction operation is performed during intermittent recording. Can be done.

  When there is an instruction to start recording, image data is intermittently recorded on the recording medium 1 as described above. In the reproduction operation during the recording stop period, it is possible to reproduce normal continuous image data. However, in this embodiment, a part of the recorded image data is reproduced, and the reproduced part of the image data is reproduced. The data is stored in the data memory 5 as representative image data. In the present embodiment, among the image data recorded on the recording medium 1, one frame of image data recorded immediately after the start of recording is reproduced and stored in the data memory 5 in an encoded state.

  Then, when recording of image data on the recording medium 1 is stopped by an instruction to stop recording, writing of encoded data to the data memory 5 is also stopped. When there is an instruction to switch to the playback mode, the control unit 11 controls the image processing decoding unit 10 to read and decode the representative image data from the data memory 5, and image the decoded representative image data. It is displayed on the display device 15.

  Conventionally, when the reproduction operation is started, it is necessary to reproduce and acquire the representative image data from the recording medium when the reproduction operation is started. However, in the case of this embodiment, the representative image data is already stored in the data memory 5 when the reproduction operation is performed after the recording operation is completed. Therefore, it is not necessary to reproduce and acquire the representative image data at the start of the reproduction operation, and the start response speed of the reproduction operation can be increased.

  In the example shown in FIG. 2, the reproduction process of the representative image data is executed over a plurality of intermittent intervals. However, as described above, the representative image data may be the first frame, and if the intermittent period is about several seconds to several tens of seconds, all the representative image data can be reproduced in one intermittent interval. become. Therefore, generation of noise accompanying the seek operation can be reduced.

  When the apparatus is turned off after the recording is stopped, the representative image data stored in the data memory 5 is held as it is. When the recording medium 1 is instructed to be ejected after the recording is stopped, the representative image data held in the data memory 5 is erased.

(Second Embodiment)
In the first embodiment, the seek operation is performed twice from the recording position to the reproduction position and from the reproduction position to the recording position during one recording stop period, and one seek operation is short in time. there were. In the present embodiment, an example of performing a short-distance seek operation and a long-distance seek operation will be described.

FIG. 3 is a diagram showing a temporal flow of the recording / reproducing operation in the present embodiment.
In FIG. 3, 301 and 303 are periods in which a short-distance seek operation is performed, and 302 is a period in which a long-distance seek operation is performed. Note that the functional configuration of the recording / reproducing apparatus of this embodiment is the same as that of the block shown in FIG. 1 of the first embodiment, and a description thereof will be omitted.

  Next, an operation procedure in the present embodiment will be described with reference to FIG. FIG. 3A shows a state in which encoded data is continuously stored in the data memory 5. FIG. 3B shows a period in which image data is recorded on the recording medium 1, and an intermittent interval is provided to alternately generate a recording processing period and a recording stop period. In the present embodiment, as shown in FIG. 3D, a reproduction period for generating a representative image is provided during the recording stop period, and reproduction for generating representative image data from the recording medium 1 is performed.

  Since the reproduction position of the recording medium 1 is different from the recording position, the head 2 must be sought to perform each process. FIG. 3C shows a period during which the head 2 seeks from the recording position to the reproduction position, and FIG. 3E shows a period during which the head 2 seeks from the reproduction position to the recording position.

  As shown in FIG. 3A, the encoded data is written in the data memory 5 even during the recording stop period. Therefore, in the period 302 in which the long-distance seek operation is performed, first, as in the first embodiment, control between the position of the head 2 and the recording medium 1 is performed during the seek period in order to suppress vibration noise. Do not. Furthermore, the speed at which the head 2 is moved is slowed down to reduce the motor operating noise for head movement. As a result, vibration noise when the light irradiated from the head 2 passes through the wobble on the recording medium 1 can be reduced, and mechanical noise for performing a seek operation can also be reduced.

  On the other hand, in the periods 301 and 303 in which the short-distance seek operation is performed, the normal seek operation is performed without changing the speed at which the head 2 is moved and the height of the head 2 with respect to the recording medium 1. Note that the criterion for determining the length of the distance is defined by the number of tracks of the recording medium 1.

  Such seek operation is performed, and the acquired representative image data is stored in the data memory 5. Then, when recording of image data on the recording medium 1 is stopped by an instruction to stop recording, writing of encoded data to the data memory 5 is also stopped. When there is an instruction to switch to the playback mode, the control unit 11 controls the image processing decoding unit 10 to read and decode the representative image data from the data memory 5, and image the decoded representative image data. It is displayed on the display device 15.

  As described above, also in the present embodiment, the representative image data is already stored in the data memory 5 when the reproduction operation is performed after the recording operation is completed. Therefore, it is not necessary to reproduce and acquire the representative image data at the start of the reproduction operation, and the start response speed of the reproduction operation can be increased. Further, when performing a long-distance seek operation, noise is mixed in the image data recorded on the recording medium 1 in order to reduce the speed of moving the head 2 and reduce the motor operating sound for moving the head. Can be reduced.

(Third embodiment)
In the first and second embodiments, the example in which the seek operation is performed twice from the recording position to the reproduction position and from the reproduction position to the recording position during one recording stop period has been described. In the present embodiment, an example in which two or more representative image data are reproduced during one recording stop period will be described.

FIG. 4 is a diagram showing a temporal flow of the recording / reproducing operation in the present embodiment.
As shown in FIG. 4, the long distance seek operation is performed once in the periods 401 and 403, and the short distance seek operation is performed twice in the period 402. Note that the functional configuration of the recording / reproducing apparatus of this embodiment is the same as that of the block shown in FIG. 1 of the first embodiment, and a description thereof will be omitted.

  Next, the operation procedure in this embodiment will be described with reference to FIG. FIG. 4A shows a state in which encoded data is continuously stored in the data memory 5. FIG. 4B shows a period in which image data is recorded on the recording medium 1, and an intermittent period is provided to alternately generate a recording process period and a recording stop period. In the present embodiment, as shown in FIG. 4D, a reproduction period for generating a representative image is provided during the recording stop period, and reproduction for generating representative image data from the recording medium 1 is performed.

  Since the reproduction position of the recording medium 1 is different from the recording position, the head 2 must be sought to perform each process. A period during which the head 2 seeks from the recording position to the reproduction position (or from the reproduction position of the reproduced representative image data to the reproduction position of the next representative image data to be reproduced) is shown in FIG. 4C, from the reproduction position to the recording position. A period during which the head 2 is sought is shown in FIG.

  As shown in FIG. 4A, the encoded data is written in the data memory 5 even during the recording stop period. Therefore, in the periods 401 and 403 in which the long-distance seek operation is performed, first, control between the position of the head 2 and the recording medium 1 is not performed during the seek period in order to suppress vibration noise. Furthermore, the speed at which the head 2 is moved is slowed down to reduce the motor operating noise for head movement.

  On the other hand, in the period 402 in which the short-distance seek operation is performed twice, the normal seek operation is performed without changing the speed at which the head 2 is moved and the height of the head 2 with respect to the recording medium 1, and the seek operation is continued several times. Let Note that the criterion for determining the length of the distance is defined by the number of tracks of the recording medium 1. Also, when both long distance seek and short distance seek occur during one recording stop period, the seek control is changed according to the seek distance.

  The seek operation is performed as described above, and the acquired representative image data is stored in the data memory 5. Then, when recording of image data on the recording medium 1 is stopped by an instruction to stop recording, writing of encoded data to the data memory 5 is also stopped. When there is an instruction to switch to the playback mode, the control unit 11 controls the image processing decoding unit 10 to read and decode the representative image data from the data memory 5, and image the decoded representative image data. It is displayed on the display device 15.

  As described above, in the present embodiment, the representative image data is already stored in the data memory 5 when the reproduction operation is performed after the recording operation is completed. Therefore, it is not necessary to reproduce and acquire the representative image data at the start of the reproduction operation, and the start response speed of the reproduction operation can be increased. Further, when performing a long-distance seek operation, noise is mixed in the image data recorded on the recording medium 1 in order to reduce the speed of moving the head 2 and reduce the motor operating sound for moving the head. Can be reduced.

(Other embodiments according to the present invention)
Each means constituting the recording / reproducing apparatus and each step of the recording / reproducing method in the embodiment of the present invention described above can be realized by operating a program stored in a RAM or ROM of a computer. This program and a computer-readable storage medium storing the program are included in the present invention.

  In addition, the present invention can be implemented as, for example, a system, apparatus, method, program, storage medium, or the like. Specifically, the present invention may be applied to a system including a plurality of devices. The present invention may be applied to an apparatus composed of a single device.

  Note that the present invention includes a case where a software program that realizes the functions of the above-described embodiments is supplied directly or remotely to a system or apparatus. This includes the case where the system or the computer of the apparatus is also achieved by reading and executing the supplied program code.

  Accordingly, since the functions of the present invention are implemented by computer, the program code installed in the computer also implements the present invention. In other words, the present invention includes a computer program itself for realizing the functional processing of the present invention.

  In that case, as long as it has the function of a program, it may be in the form of object code, a program executed by an interpreter, script data supplied to the OS, and the like.

  Examples of the storage medium for supplying the program include a flexible disk, a hard disk, an optical disk, and a magneto-optical disk. Further, there are MO, CD-ROM, CD-R, CD-RW, magnetic tape, nonvolatile memory card, ROM, DVD (DVD-ROM, DVD-R) and the like.

  As another program supply method, there is a method of connecting to a homepage on the Internet using a browser of a client computer. It can also be supplied by downloading the computer program itself of the present invention or a compressed file including an automatic installation function from a homepage to a storage medium such as a hard disk.

  It can also be realized by dividing the program code constituting the program of the present invention into a plurality of files and downloading each file from a different homepage. That is, a WWW server that allows a plurality of users to download a program file for realizing the functional processing of the present invention on a computer is also included in the present invention.

  As another method, the program of the present invention is encrypted, stored in a recording medium such as a CD-ROM, distributed to users, and encrypted from a homepage via the Internet to users who have cleared predetermined conditions. Download the key information to be solved. It is also possible to execute the encrypted program by using the key information and install the program on a computer.

  Further, the functions of the above-described embodiments are realized by the computer executing the read program. Furthermore, based on the instructions of the program, an OS or the like running on the computer performs part or all of the actual processing, and the functions of the above-described embodiments can be realized by the processing.

  As another method, a program read from a storage medium is first written in a memory provided in a function expansion board inserted into the computer or a function expansion unit connected to the computer. Then, based on the instructions of the program, the CPU or the like provided in the function expansion board or function expansion unit performs part or all of the actual processing, and the functions of the above-described embodiments are also realized by the processing.

It is a block diagram which shows the function structural example of the recording / reproducing apparatus in the 1st Embodiment of this invention. FIG. 6 is a diagram illustrating a temporal flow of a recording / reproducing operation in the first embodiment of the present invention. FIG. 10 is a diagram showing a temporal flow of a recording / reproducing operation in the second embodiment of the present invention. In the 3rd Embodiment of this invention, it is a figure which shows the time flow of recording / reproducing operation | movement.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Recording medium 2 Head 3 Modulation processing part 4 ECC encoding part 5 Data memory 6 RF processing part 7 Demodulation processing part 8 ECC decoding part 9 Image processing encoding part 10 Image processing decoding part 11 Control part 12 Servo head control Unit 13 Motor control unit 14 Spindle motor 15 Display device 16 Recorded information 17 Operation unit

Claims (4)

A recording period in which moving image data is recorded on a recording medium, and the moving image data is reproduced from the recording medium, and the moving image data is recorded on the recording medium from a recording start instruction to a recording stop instruction. And a recording / reproducing means for recording the moving image data by alternately repeating a stop period for stopping the recording of the moving image data,
Generating means for generating representative image data of the moving image data using a part of the moving image data reproduced from the recording medium, and displaying a representative image related to the representative image data on a display device;
Control means for controlling the recording / reproducing means so that a part of the moving image data is reproduced from the recording medium and stored in the storage means in the stop period from the instruction to start recording to the instruction to stop recording. Prepared,
The control means stops the recording of the moving image data in response to the recording stop instruction, and then, according to the instruction to switch to the reproduction mode, the moving image reproduced by the recording / reproducing means in the stop period and stored in the storage means A recording / reproducing apparatus for controlling the generating means so as to display a representative image related to representative image data generated using data.   The recording means reproduces a part of the plurality of moving image data for generating a plurality of the representative image data from the recording medium and stores them in the storage means for generating the plurality of representative image data in one stop period. The recording / reproducing apparatus according to claim 1, wherein the reproducing means is controlled. Encoding means for compressing and encoding the input moving image data, and storing the encoded moving image data in the storage means;
The recording / reproducing means reads out the encoded moving image data from the storage means during the recording period and records it on the recording medium, and encodes a part of the moving image data reproduced from the recording medium during the stop period. Stored in the storage means in a state of
The generating means has decoding means for decoding moving image data reproduced from the recording medium,
In response to an instruction to switch to the playback mode, the control unit decodes the moving image data reproduced by the recording / reproducing unit and stored in the storage unit during the stop period, and uses the decoded moving image data. The recording / reproducing apparatus according to claim 1, wherein the generation unit is controlled to generate the representative image data. Between the recording start instruction and the recording stop instruction, a recording period for recording the moving picture data on the recording medium and a stop period for stopping the recording of the moving picture data are alternately repeated to transfer the moving picture data to the recording medium. A recording and reproducing step of recording and reproducing moving image data from the recording medium;
Generating a representative image data of the moving image data using a part of the moving image data reproduced from the recording medium, and displaying a representative image related to the representative image data on a display device;
A control step for controlling the recording / reproducing step so that a part of the moving image data is reproduced from the recording medium and stored in the storage means during the stop period from the instruction to start recording to the instruction to stop recording. Have
In the control step, after the recording of the moving image data is stopped by the recording stop instruction, the moving image reproduced by the recording / reproducing step in the stop period and stored in the storage unit according to the instruction to switch to the reproduction mode A recording / reproducing method characterized by controlling the generating step so as to display a representative image related to representative image data generated using data.

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