JPH11339446A - Recording/reproducing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To avoid missing and destruction of information at the editing source by managing, for reproduction, the corresponding image data and voice data in a unit of recording/reproducing management as a file and then reproducing the file depending on the reproducing sequence designated based on the reproduction control information. SOLUTION: A media drive 4 encodes a recording data in the manner fitting to disk recording, during the recording operation, depending on the MD-DATA2 format and then transfers the data to a deck 5 and also transmits, during the reproducing operation, the reproduced data to a video signal processor 3 after conducting the decoding process of the data read from the disk 51 in the deck 5. The MD-DATA2 encoder/decoder 41 of the media drive 4 inputs the recording data from a data process/system control circuit 31 during the recording operation, stores the encoded data in a temporary buffer memory 42 and then transfers the data to the deck 5 while it is being read in the predetermined timing.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording / reproducing apparatus capable of recording / reproducing a disk-shaped recording medium.

[0002]

2. Description of the Related Art For example, a VTR (Video Tape Recoeder) is known as a system capable of recording and reproducing information (including audio information) of a captured image as a moving image recorded by a user. Further, for example, an imaging device such as a camera and a VTR (V
Video cameras with integrated ideo tape recorders are also widely known. 2. Description of the Related Art A video camera is capable of recording and reproducing an image captured by a user. At present, such a system using a tape-shaped recording medium is widely known. In recent years, there has been an increasing demand for users to edit images recorded by a VTR or a video camera.

[0003]

As an example of the above-mentioned editing processing, there is a so-called insert processing for inserting a new image into an intermediate portion of a certain moving image. As an operation, an image to be inserted is overwritten on a required area on the tape on which a moving image has been recorded before. In this case, the previously recorded image portion will be erased by overwriting,
For example, in a later stage, even if it is desired to restore and reproduce the erased image portion, it is impossible to do so.

In recent years, for example, nonlinear editing in which a user arbitrarily designates the order of reproduction of a plurality of moving image data and the like and sequentially reproduces the files has been performed. Such editing work is generally performed by, for example, a user storing moving image data in a personal computer device or the like, and using a special application for editing on the personal computer device. is there.
In addition, even if the above-described insert processing is performed, if the original recorded information is not erased, the image information is taken into a personal computer or the like to perform the edit processing.

[0005] In other words, if a user wants to edit a file as moving image information obtained in some way, it becomes necessary to use a personal computer and some kind of editing equipment after recording as described above. . Conversely, in a video camera device, a VTR, or the like, it is difficult to perform even simple editing, such as designating the order in which files are reproduced, at the stage of shooting or recording. Also, even if a function that enables a somewhat simple editing process is added,
A GUI (Graphical
At present, it is not provided with user interface-like functions and its usability is not always good.

[0006]

In view of the above-mentioned problems, the present invention is directed to a recording apparatus capable of recording and reproducing image / audio information obtained by recording, for example, in which the information of the editing source is lost as much as possible. It is an object of the present invention to take care not to be destroyed, and to make it possible to perform a relatively simple editing operation even at the same opportunity as an image shooting or recording operation. That is, it is an object of the present invention to provide an editing work environment that is useful for a user.

For this reason, a recording / reproducing apparatus capable of recording / reproducing at least a disk-shaped recording medium on which image data and audio data in a predetermined recording / reproducing management unit can be recorded is provided. Control means for executing required control processing including control relating to recording or reproduction of data is provided.
The image data and the audio data in the recording / reproduction management unit described above can be managed so as to be reproducible as one file by associating them, and at least information for specifying the reproduction order of the file is included. Based on the reproduction control information for controlling the output mode, it is configured such that required control processing including reproduction of files in accordance with the reproduction order specified by the reproduction control information can be executed.

The control means executes display control for displaying all or a part of the thumbnail images generated corresponding to each file managed based on the reproduction control information on the display means. By enabling the display unit to display the required thumbnail images in the arrangement order corresponding to the reproduction order of the files specified by the reproduction control information, the reproduction of the files recorded on the disc-shaped recording medium is enabled. The display control for performing the reproduction order display for presenting the order is made executable.

Further, there is provided a file selecting means for selecting and designating a file corresponding to the thumbnail image as a file serving as a base point of recording or reproduction, and the control means controls the state in which the file is selected by the file selecting means. When a new file is recorded, the reproduction order of the recorded file is specified as that to be reproduced immediately before or immediately after the file selected by the file selection means. And a control process for updating the reproduction control information.

[0010] According to the above configuration, it is assumed that random access is possible because the corresponding recording medium is a disk medium. The required reproduction output mode is specified by the reproduction control information set separately from the data forming the file. This means that, for example, the original image and audio data recorded on the disc are not directly processed, and the content of the reproduction control information is updated, so that the reproduction order of the file and the like can be specified. This means that editing based on this is possible.

At the time of actual recording, the reproduction order is displayed by arranging the representative screens according to the reproduction order indicated by the reproduction control information, for example.
This makes it possible to visually present the files currently recorded on the disk-shaped recording medium in the order of reproduction.

Then, a file serving as a base point for recording or reproduction can be selected and designated by selecting a representative screen presented in the reproduction order display. When recording is performed from a state where a certain file is selected, If the playback control information is updated so that immediately before or immediately after the selected file is in the playback order of the newly recorded file, the selection of the file serving as the base point of the recording or playback causes a new file. Can be inserted in any reproduction order.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a recording / reproducing apparatus according to an embodiment of the present invention will be described. The recording / reproducing device of the present embodiment is a portable video camera in which a camera device and a recording / reproducing device capable of recording and reproducing images (still images or moving images) and audio are integrated. For example. The recording / reproducing device mounted on the video camera of the present embodiment is known as a type of magneto-optical disk.
A configuration for recording and reproducing data corresponding to a so-called mini-disc is adopted. The description will be made in the following order. 1. Disk format 2. 2. External configuration of video camera 3. Internal configuration of video camera 4. Configuration of media drive section 5. Example of disk structure corresponding to this embodiment 6. Thumbnail image generation processing Editing example of the present embodiment 7-1. Script 7-2. Thumbnail display and playback operation 7-3. Editing operation (first example) 7-4. Editing operation (second example) 7-5. Processing operation

1. Disc Format The recording / reproducing device section mounted on the video camera of this example is assumed to be compatible with a format called MD data, which records / reproduces data in correspondence with a mini disc (magneto-optical disc). . As this MD data format, two types of formats called MD-DATA1 and MD-DATA2 have been developed, but the video camera of this example is capable of recording at higher density than MD-DATA1. It is assumed that recording and reproduction are performed in accordance with the format. So first, MD
-Disc format of DATA2 will be described.

FIGS. 1 and 2 conceptually show an example of a track structure of a disk as MD-DATA2. FIGS. 2A and 2B are a cross-sectional view and a plan view, respectively, showing an enlarged portion enclosed by a broken line A in FIG. As shown in these figures, two types of grooves (grooves) are previously formed on the disk surface: a wobbled groove WG provided with wobbles (meandering) and a non-wobbled groove NWG provided with no wobble. It is formed. The wobbled groove WG and the non-wobbled groove NWG
Exist in a double spiral on the disk so as to form a land Ld therebetween.

In the MD-DATA2 format, the land Ld is used as a track. Since the wobbled groove WG and the non-wobbled groove NWG are formed as described above, the track Tr / A is used as the track. , Tr and B are independently formed in a double spiral (double spiral) shape. The track Tr · A is a track in which the wobbled groove WG is located on the outer peripheral side of the disk and the non-wobbled groove NWG is located on the inner peripheral side of the disk. On the other hand, the track Tr · B is a track in which the wobbled groove WG is located on the inner peripheral side of the disk and the non-wobbled groove NWG is located on the outer peripheral side of the disk. In other words, it can be considered that a wobble is formed only on one side on the outer peripheral side of the disk for the track Tr.A, and a wobble is formed only on one side on the inner peripheral side of the disk for the track Tr.B. . In this case, the track pitch is the track Tr adjacent to each other.
・ It is the distance between each center of A and track Tr ・ B,
The track pitch is 0.95 μm as shown in FIG.
It has been.

Here, the wobbles formed in the groove as the wobbled groove WG are formed based on a signal in which the physical address on the disk is encoded by FM modulation + biphase modulation. For this reason, it is possible to extract the physical address on the disc by demodulating the reproduction information obtained from the wobbling given to the wobbled groove WG at the time of recording / reproduction. Further, the address information as the wobbled groove WG is commonly effective for the tracks Tr · A and Tr · B. In other words, the track Tr · A located on the inner periphery of the wobbled groove WG and the track Tr · B located on the outer periphery share the address information by the wobbling given to the wobbled groove WG. . Note that such an addressing scheme is also called an interlace addressing scheme. By adopting this interlace addressing method, for example, it is possible to reduce the track pitch while suppressing crosstalk between adjacent wobbles. For a method of recording an address by forming a wobble in a groove, A
Also called DIP (Adress In Pregroove) method.

The identification of which of the tracks Tr.A and Tr.B sharing the same address information is being traced as described above can be performed as follows. For example, in a state where the main beam is tracing a track (land Ld) by applying a three-beam method, the remaining two side beams trace grooves located on both sides of the track being traced by the main beam. It is possible to make it.

FIG. 2B shows, as a specific example, a state where the main beam spot SPm traces the track Tr · A. In this case, of the two side beam spots SPs1 and SPs2, the inner side beam spot SPs1 traces the non-wobbled groove NWG and the outer side beam spot S
Ps2 traces the wobbled groove WG. On the other hand, although not shown, if the main beam spot SPm traces the tracks Tr and B, the side beam spot SPs1 traces the wobbled groove WG and the side beam spot SP
s2 traces the non-wobbled groove NWG. Thus, the main beam spot SPm
Tracing the track Tr · A and the track T
In the case of tracing r · B, the grooves to be traced by the side beam spots SPs1 and SPs2 are necessarily replaced by the wobbled groove WG and the non-wobbled groove NWG.

Side beam spots SPs1, SPs2
As a detection signal obtained by the photodetector due to the reflection of light, different waveforms are obtained depending on which of the wobbled groove WG and the non-wobbled groove NWG is being traced. By determining which of the side beam spots SPs1 and SPs2 traces the wobbled groove WG (or the non-wobbled groove NWG), the main beam is moved to the tracks Tr · A,
Which of Tr and B is being traced can be identified.

FIG. 3 shows the main specifications of the MD-DATA2 format having the track structure as described above.
It is a figure shown in comparison with D-DATA1 format.
First, in the MD-DATA1 format, the track pitch is 1.6 μm and the pit length is 0.59 μm / bi.
t. The laser wavelength λ is set to 780 nm, and the aperture ratio NA of the optical head is set to 0.45. As a recording method, a groove recording method is adopted. That is, the groove is used as a track for recording and reproduction. As a method of addressing, a method of forming a groove (track) by a single spiral and using a wobbled groove in which wobbles are formed as address information on both sides of the groove is adopted.

EFM (8
-14 conversion). As an error correction method, ACIRC (Advanced Cross Interleave Reed-
Solomon Code) and a convolutional data interleave. Therefore, the data redundancy is 46.3%.

In the MD-DATA1 format, a CLV (Constant Linear V) is used as a disk drive system.
erocity) is adopted, and the linear velocity of CLV is
1.2 m / s. The standard data rate during recording and reproduction is 133 kB / s, and the recording capacity is 140 MB.

On the other hand, the MD-DATA2 format which can be supported by the video camera of this embodiment has a track pitch of 0.95 μm and a pit length of 0.39 μm / b.
It can be seen that both are shorter than the MD-DATA1 format. For example, in order to realize the pit length, the laser wavelength λ = 650 nm and the aperture ratio NA of the optical head are set to 0.52, thereby narrowing the beam spot diameter at the in-focus position and expanding the band as an optical system. .

As described with reference to FIGS. 1 and 2, a land recording method is adopted as a recording method, and an interlace addressing method is adopted as an address method. As a modulation method of recording data, an RLL (1,7) method (RLL;
Run Length Limited), an RS-PC method is used as an error correction method, and a block complete type is used as data interleaving. As a result of adopting each of the above methods, the data redundancy can be suppressed to 19.7%.

Also in the MD-DATA2 format, CLV is adopted as a disk drive system, but its linear velocity is 2.0 m / s, and the standard data rate for recording / reproducing is 589 kB / s. It is said. As a result, a recording capacity of 650 MB can be obtained. Compared with the MD-DATA1 format, this means that a high-density recording of almost four times is realized. For example, assuming that a moving image is to be recorded in the MD-DATA2 format, MPEG
In the case where the compression encoding by 2 is performed, it is possible to record a moving image of 15 minutes to 17 minutes in time, depending on the bit rate of the encoded data. Also, assuming that only audio signal data is recorded, the ATR
When a compression process using AC (Adaptive Transform Acoustic Coding) 2 is performed, recording can be performed for about 10 hours.

2. 6A, 6B, and 6C are a side view, a plan view, and a rear view showing an example of the appearance of the video camera of this example. As shown in these figures, the main body 200 of the video camera of the present embodiment includes:
A camera lens 201 provided with an imaging lens and a diaphragm for taking a picture is provided so as to be exposed. A pair of left and right microphones 202 is provided. That is, in this video camera, recording of an image taken by the camera lens 201 and
It is possible to record stereo sound collected by the microphone 202.

The display unit 6 is provided on the side of the main body 200.
A, a speaker 205 and an indicator 206 are provided. The display unit 6A is a part that displays and outputs a captured image, an image reproduced by an internal recording and reproducing device, and the like. The display device actually used as the display unit 6A is not particularly limited here,
For example, a liquid crystal display or the like may be used. Also,
The display unit 6A also displays a message such as characters or characters for notifying the user of a required message in accordance with the operation of the device. Speaker 20
5 reproduces the recorded voice when reproducing the recorded voice, and also outputs a required message voice such as a beep sound. The indicator 206 emits light during a recording operation, for example, to indicate to the user that the video camera is performing a recording operation.

A viewfinder 204 is provided on the rear side of the main body 200, and displays an image taken from the camera lens 201, a character image, and the like during a recording operation and a standby state. The user can shoot while looking at the viewfinder 204. Further, the disc slot 203, the video output terminal T
1. A headphone / line terminal T2 and an I / F terminal T3 are provided. The disk slot 203 is a slot portion for inserting or ejecting a disk as a recording medium corresponding to the video camera of this example. The video output terminal T1 is a terminal for outputting a reproduced image signal or the like to an external video device, and the headphone / line terminal T2 is a terminal for outputting a reproduced audio signal to an external audio device or headphones. The I / F terminal T3 is, for example, an input / output terminal of an interface for performing data transmission with an external data device.

Further, various controls (300301, 304) for user operation are provided on each part of the main body 200.
To 310) are provided. The main dial 300 is an operator for setting on / off of the video camera, recording operation, and reproduction operation. As the main dial shows,
When it is at the position of “FF”, the power is turned off and “S
By turning to the position of “TBY”, the power is turned on and the recording operation is in a standby state. Further, by turning to the position of “PB”, the power is turned on and a standby state of the reproducing operation is set.

The release key 301 functions as a recording start or recording shutter operator when in a recording standby state.

A zoom key 304 is an operator for operating a zoom state (tele side to wide side) regarding image capturing. The eject key 305 is
This is an operator for ejecting the disc loaded in the inside. Play / pause key 306, stop key 307,
Search keys 308 and 309 are prepared for various operations during reproduction with respect to the disc.

The cross key 310 is used by the user to move the pointer display on the thumbnail display screen described later in the left, right, up and down directions.

The appearance of the video camera shown in FIG. 6 is merely an example, and may be changed as appropriate in accordance with the actual use conditions required for the video camera of this embodiment. Of course, various types of operation elements, operation methods, and connection terminals with external devices can be considered.

3. FIG. 4 is a block diagram showing an example of the internal configuration of the video camera of the present embodiment. The lens block 1 shown in FIG. 1 includes, for example, an optical system 11 actually including an imaging lens and a diaphragm. The camera lens 201 shown in FIG. 6 is included in the optical system 11. The lens block 1 includes a focus motor for causing the optical system 11 to perform an autofocus operation, a zoom motor for moving the zoom lens based on the operation of the zoom key 304, and the like.
Provided as

The camera block 2 is provided with a circuit for mainly converting image light captured by the lens block 1 into a digital image signal. For the CCD (Charge Coupled Device) 21 of the camera block 2,
An optical image of the subject transmitted through the optical system 11 is provided. C
In the CD 21, an image pickup signal is generated by performing photoelectric conversion on the optical image, and a sample hold / AGC (A
utomatic Gain Control) circuit 22. The sample hold / AGC circuit 22 adjusts the gain of the imaging signal output from the CCD 21 and performs waveform shaping by performing sample hold processing. The output of the sample hold / AGC circuit 2 is a video A / D
By being supplied to the converter 23, it is converted into digital image signal data.

The above CCD 21, sample hold / AG
Signal processing timing in the C circuit 22 and the video A / D converter 23 is controlled by a timing signal generated by a timing generator 24. The timing generator 24 receives a clock used for signal processing in a data processing / system control circuit 31 (in the video signal processing circuit 3) described later and generates a required timing signal based on the clock. Is done. Thereby, the signal processing timing in the camera block 2 is synchronized with the processing timing in the video signal processing unit 3. Camera controller 2
Reference numeral 5 is for performing necessary control so that each of the functional circuit units provided in the camera block 2 operates properly, and for performing autofocus, automatic exposure adjustment, aperture adjustment, zooming, and the like on the lens block 1. Is controlled. For example, in the case of auto-focus control, the camera controller 25 performs, based on focus control information obtained in accordance with a predetermined
Controls the rotation angle of the focus motor. As a result, the imaging lens is driven to be in the just-focused state.

At the time of recording, the video signal processing unit 3 performs a compression process on the digital image signal supplied from the camera block 2 and the digital audio signal obtained by collecting sound by the microphone 202, and compresses the compressed data. The data is supplied to the subsequent media drive unit 4 as user recording data. Further, an image generated from the digital image signal and the character image supplied from the camera block 2 is supplied to the viewfinder drive unit 207 and displayed on the viewfinder 204. Further, at the time of reproduction, demodulation processing is performed on user reproduction data (data read from the disk 51) supplied from the media drive unit 4, that is, image signal data and audio signal data that have been subjected to compression processing, and these are reproduced. , And output as a reproduced audio signal.

In this example, as a compression / expansion processing method for image signal data (image data), MPEG (Moving Picture Experts Group) 2 is adopted for moving images, and JPEG (Joint Photographic) is used for still images.
Coding Experts Group). The audio signal data compression / expansion processing method includes ATR
AC (Adaptive Transform Acoustic Coding) 2 shall be adopted.

The data processing / system control circuit 31 of the video signal processing section 3 mainly performs control processing relating to compression / expansion processing of image signal data and audio signal data in the video signal processing section 3 and video signal processing section 3. Executes the process for controlling the input and output of data passing through. The data processing / system control circuit 31
The control processing for the entire video signal processing unit 3 including
The video controller 38 is made to execute. The video controller 38 includes, for example, a microcomputer and the like, and can communicate with the camera controller 25 of the camera block 2 and a driver controller 46 of the media drive unit 4 described later via, for example, a bus line (not shown). Have been.

As a basic operation at the time of recording in the video signal processing section 3, the image signal data supplied from the video A / D converter 23 of the camera block 2 is input to the data processing / system control circuit 31. The data processing / system control circuit 31 supplies the input image signal data to, for example, the motion detection circuit 35. The motion detection circuit 35 performs image processing such as motion compensation on the input image signal data while using the memory 36 as a work area, and then supplies the processed image signal data to the MPEG2 video signal processing circuit 33.

In the MPEG2 video signal processing circuit 33, for example, while using the memory 34 as a work area, the input image signal data is subjected to compression processing in accordance with the MPEG2 format, and a bit stream of compressed data as a moving image (MPEG2 Bit stream). In the MPEG2 video signal processing circuit 33, for example, when extracting image data as a still image from image signal data as a moving image and performing compression processing on the extracted image data, the compressed image data as a still image in accordance with the JPEG format is used. Is configured to generate It should be noted that JPEG was not adopted and MPEG
As compressed image data in the second format, an I picture (Intra Picture), which is regular image data, may be treated as still image data. MPEG
The image signal data (compressed image data) compressed and encoded by the two-video signal processing circuit 33 is written into the buffer memory 32 at a predetermined transfer rate and temporarily stored. In the MPEG2 format, as is well known, a so-called encoding bit rate (data rate) is used as a constant bit rate (CBR).
ate) and a variable bit rate (VBR), and the video signal processing unit 3 can cope with these.

For example, when performing image compression processing using VBR, for example, the motion detection circuit 35 performs motion detection on the image data within a range of several tens to several hundreds of frames in units of macroblocks to determine that there is motion. Then, the detection result is transmitted to the MPEG2 video signal processing circuit 33 as motion vector information. In the MPEG2 video signal processing circuit 33, the quantization coefficient for each macroblock is calculated by using the required information such as the motion vector information so that the image data after the compression and encoding has a certain required data rate. It will be decided.

The audio compression encoder / decoder 37 includes:
A / D converter 64 (display / image / audio input / output unit 6)
For example, the sound collected by the microphone 202 is input as digital sound signal data. The audio compression encoder / decoder 37 performs compression processing on the input audio signal data in accordance with the ATRAC2 format as described above. This compressed audio signal data is also written into the buffer memory 32 by the data processing / system control circuit 31 at a predetermined transfer rate, and is temporarily stored here.

As described above, the compressed image data and the compressed audio signal data can be stored in the buffer memory 32. The buffer memory 32 mainly absorbs a speed difference between the data transfer rate between the camera block 2 or the display / image / audio input / output unit 6 and the buffer memory 32 and the data transfer rate between the buffer memory 32 and the media drive unit 4. Has a function for Buffer memory 3
The compressed image data and the compressed audio signal data stored in 2 are read out sequentially at a predetermined timing during recording, and transmitted to the MD-DATA2 encoder / decoder 41 of the media drive unit 4. However, for example, during the reproduction, the reading of the data stored in the buffer memory 32 and the operation of recording the read data from the media drive unit 4 to the disk 51 via the deck unit 5 are performed intermittently. No problem. Such control of writing and reading data to and from the buffer memory 32 is executed by, for example, the data processing / system control circuit 31.

The operation at the time of reproduction in the video signal processing section 3 is roughly as follows. At the time of reproduction, compressed image data and compressed audio signal data (user reproduction data) read from the disk 51 and decoded according to the MD-DATA2 format by the processing of the MD-DATA2 encoder / decoder 41 (in the media drive unit 4) Data processing / system control circuit 31
Will be transmitted. The data processing / system control circuit 31 temporarily stores the input compressed image data and compressed audio signal data in the buffer memory 32, for example. Then, the compressed image data and the compressed audio signal data are read from the buffer memory 32 at a required timing and at a transfer rate at which the reproduction time axis can be matched.
The compressed audio signal data is supplied to the video signal processing circuit 33, and the compressed audio signal data is supplied to the audio compression encoder / decoder 37.

In the MPEG2 video signal processing circuit 33,
Decompresses the input compressed image data,
It is transmitted to the data processing / system control circuit 31. In the data processing / system control circuit 31,
The expanded image signal data is supplied to the video D / A converter 61 (in the display / image / audio input / output unit 6). The audio compression encoder / decoder 37 performs an expansion process on the input compressed audio signal data,
/ A converter 65 (in display / image / audio input / output unit 6)
To supply.

In the display / image / audio input / output unit 6,
The image signal data input to the video D / A converter 61 is converted into an analog image signal here, and is branched and input to the display controller 62 and the composite signal processing circuit 63. The display controller 62 drives the display unit 6A based on the input image signal. As a result, a reproduced image is displayed on the display unit 6A. Further, in the display unit 6A, not only an image obtained by reproducing from the disk 51 but also a captured image obtained by photographing with a camera part including the lens block 1 and the camera block 2 is naturally displayed. It is possible to display and output almost in real time. Further, in addition to the reproduced image and the captured image, as described above, a message display such as a character or a character for notifying the user of a required message in accordance with the operation of the device is also performed. Such a message display should be output from the data processing / system control circuit 31 to the video D / A converter 61 so that required characters, characters, and the like are displayed at predetermined positions under the control of the video controller 38, for example. Processing for synthesizing image signal data of required characters, characters, and the like may be performed on the image signal data.

The composite signal processing circuit 63 converts the analog image signal supplied from the video D / A converter 61 into a composite signal and outputs it to the video output terminal T1. For example, if a connection is made to an external monitor device or the like via the video output terminal T1, an image reproduced by the video camera can be displayed on the external monitor device.

In the display / image / sound input / output unit 6, the sound signal data input from the sound compression encoder / decoder 37 to the D / A converter 65 is converted into an analog sound signal here, and the signal is supplied to a headphone / line terminal. T
2 is output. In addition, the analog audio signal output from the D / A converter 65 is also branched and output to the speaker SP via the amplifier 66, whereby the reproduced audio and the like are output from the speaker SP. Become.

The media drive unit 4 mainly encodes recording data according to the MD-DATA2 format in accordance with the MD-DATA2 format at the time of recording and transmits the encoded data to the deck unit 5. By performing decoding processing on the read data, reproduction data is obtained and transmitted to the video signal processing unit 3.

The MD-DAT of the media drive unit 4
When recording, the A2 encoder / decoder 41
Recording data (compressed image data + compressed audio signal data) is input from the data processing / system control circuit 31, the recording data is subjected to a predetermined encoding process in accordance with the MD-DATA2 format, and the encoded data is temporarily stored. The data is stored in the buffer memory 42. Then, the data is transmitted to the deck unit 5 while being read at a required timing.

At the time of reproduction, the digital reproduction signal read from the disk 51 and input via the RF signal processing circuit 44 and the binarization circuit 43 is subjected to MD-DAT.
A decoding process according to the A2 format is performed, and the data is transmitted to the data processing / system control circuit 31 of the video signal processing unit 3 as reproduction data. Also at this time, if necessary, the reproduced data is temporarily stored in the buffer memory 42, and the data read therefrom at a required timing is transmitted to the data processing / system control circuit 31 for output. Such writing / reading control for the buffer memory 42 is performed by the driver controller 46. Note that, for example, when the servo is disengaged due to disturbance or the like during reproduction of the disk 51 and reading of a signal from the disk becomes impossible, the read data is stored in the buffer memory 42 during the period during which the read data is accumulated. If the reproduction operation for the disc is resumed, the chronological continuity as the reproduction data can be maintained.

The RF signal processing circuit 44 includes a disk 51
By performing the required processing on the read signal from
For example, it generates an RF signal as reproduction data, a servo control signal such as a focus error signal and a tracking error signal for servo control of the deck unit 5, and the like. RF
The signal is binarized by the binarization circuit 43 as described above, and input to the MD-DATA2 encoder / decoder 41 as digital signal data. The generated various servo control signals are supplied to the servo circuit 45. In the servo circuit 45, based on the input servo control signal,
The required servo control in the deck section 5 is executed.

In this example, MD-DATA1
An encoder / decoder 47 corresponding to the format is provided. The encoder / decoder 47 encodes the recording data supplied from the video signal processing unit 3 in accordance with the MD-DATA1 format and records the encoded data on the disk 51. It is also possible to perform decoding processing on data encoded in accordance with the MD-DATA1 format, and transmit and output it to the video signal processing unit 3. That is, as the video camera of this example, the MD-DATA2 format and the MD-DATA2 format are used.
It is configured to obtain compatibility with the DATA1 format. The driver controller 46 is a functional circuit unit for controlling the media drive unit 4 as a whole.

The deck section 5 is a part comprising a mechanism for driving the disk 51. Although not shown here, in the deck section 5, the disk 5 to be loaded is
1 is detachable and has a mechanism (disc slot 203 (see FIG. 6)) that can be replaced by a user's work. Further, it is assumed that the disk 51 here is a magneto-optical disk corresponding to the MD-DATA2 format or the MD-DATA1 format.

In the deck section 5, a spindle motor 5 for rotating the loaded disk 51 by CLV is used.
2 is driven to rotate by the CLV. The optical head 53 irradiates the disk 51 with laser light during recording / reproduction. The optical head 53 performs high-level laser output for heating the recording track to the Curie temperature during recording, and performs relatively low-level laser output for detecting data from reflected light by the magnetic Kerr effect during reproduction. . Therefore, the optical head 53
Although not shown in detail here, a laser diode as a laser output unit, an optical system including a polarizing beam splitter and an objective lens, and a detector for detecting reflected light are mounted. The objective lens provided in the optical head 53 is held by a biaxial mechanism so as to be displaceable in a radial direction of the disk and in a direction of coming and coming from the disk.

The optical head 5 with the disk 51 interposed therebetween
A magnetic head 54 is arranged at a position facing 3. The magnetic head 54 performs an operation of applying a magnetic field modulated by recording data to the disk 51. Although not shown, the thread motor 55
And a thread mechanism driven by the thread mechanism. By driving the sled mechanism, the entire optical head 53 and the magnetic head 54 can be moved in the disk radial direction.

The operation unit 7 is provided with each of the operation elements 300 to 300 shown in FIG.
310, etc., and various operation information of the user by these operators is supplied to, for example, the video controller 38. The video controller 38 supplies, to the camera controller 25 and the driver controller 46, operation information and control information for causing each unit to execute necessary operations according to a user operation.

The external interface 8 is provided so that data can be transmitted between the video camera and the external device. For example, as shown in the figure, the external interface 8 is provided between the I / F terminal T3 and the video signal processing unit. Can be The external interface 8 is not particularly limited here, but may be, for example, IEEE 1394 or the like. For example, when an external digital imaging device and the video camera of this embodiment are connected via the I / F terminal T3, it becomes possible to record an image (audio) captured by the video camera on the external digital imaging device. . In addition, image (sound) data reproduced by an external digital image device or the like is captured via the external interface 8 so that MD-
It is also possible to record on the disk 51 in accordance with the DATA2 (or MD-DATA1) format. Further, for example, a file as character information used for inserting a caption can be captured and recorded.

The power supply block 9 supplies a required level of power supply voltage to each functional circuit unit using a DC power supply obtained from a built-in battery or a DC power supply generated from a commercial AC power supply. The power supply on / off by the power supply block 9 is controlled by the video controller 38 in accordance with the operation of the main dial 300 described above. During the recording operation, the video controller 38 causes the indicator 206 to emit light.

4. Configuration of Media Drive Unit Next, as the configuration of the media drive unit 4 shown in FIG. 4, a detailed configuration in which a functional circuit unit corresponding to MD-DATA2 is extracted will be described with reference to the block diagram of FIG. In FIG. 5, the deck unit 5 is shown together with the media drive unit 4. However, since the internal configuration of the deck unit 5 has been described with reference to FIG. 4, the same reference numerals as in FIG. I do. In the media drive unit 4 shown in FIG. 5, the same reference numerals are given to the ranges corresponding to the blocks in FIG.

Information detected by data reading operation of the optical head 53 from the disk 51 (photocurrent obtained by detecting laser reflected light by a photodetector)
Is supplied to the RF amplifier 101 in the RF signal processing circuit 44. The RF amplifier 101 generates a reproduction RF signal as a reproduction signal from the input detection information and supplies the reproduction RF signal to the binarization circuit 43. The binarization circuit 43 binarizes the input reproduction RF signal to obtain a digital reproduction RF signal (binary RF signal). This binarized RF signal is supplied to the MD-DATA2 encoder / decoder 41, and first, the AGC / clamp circuit 103
Are input to the equalizer / PLL circuit 104 after gain adjustment, clamp processing, and the like have been performed. The equalizer / PLL circuit 104 performs an equalizing process on the input binary RF signal, and
5 is output. In addition, binarization R after equalizing processing
By inputting the F signal to the PLL circuit, the binarized RF
Clock C synchronized with signal (RLL (1,7) code string)
Extract LK.

The frequency of the clock CLK corresponds to the current disk rotation speed. Therefore, the CLV processor 11
1, the clock C is output from the equalizer / PLL circuit 104.
LK is input, error information is obtained by comparing with a reference value corresponding to a predetermined CLV speed (see FIG. 3), and this error information is used as a signal component for generating a spindle error signal SPE. Further, the clock CLK includes, for example, the RLL (1, 7) demodulation circuit 106 and the like.
It is used as a clock for processing in a required signal processing circuit system.

The Viterbi decoder 105 has an equalizer / P
The binary RF signal input from the LL circuit 104 is subjected to a decoding process according to a so-called Viterbi decoding method. As a result, reproduced data as an RLL (1, 7) code string is obtained. This reproduced data is RLL (1,
7) The signal is input to the demodulation circuit 106, where RLL (1,
7) The data stream is subjected to demodulation.

The data stream obtained by the demodulation processing in the RLL (1, 7) demodulation circuit 106 is written to the buffer memory 42 via the data bus 114, and is developed on the buffer memory 42. The data stream expanded on the buffer memory 42 in this manner is first subjected to error correction processing in error correction block units according to the RS-PC system by the ECC processing circuit 116, and further descramble / E
The DC decoding circuit 117 performs a descrambling process and an EDC decoding process (error detection process). The data processed so far is the reproduction data DA
TAp. The reproduction data DATAp is transmitted at a transfer rate according to the transfer clock generated by the transfer clock generation circuit 121, for example, from the descrambling / EDC decoding circuit 117 to the data processing / processing of the video signal processing unit 3.
The data is transmitted to the system control circuit 31.

For example, the transfer clock generation circuit 121
When a crystal clock is used for data transmission between the media drive unit 4 and the video signal processing unit 3 and data transmission between functional circuit units in the media drive unit 4,
It is a part for generating a transfer clock (data transfer rate) having a frequency appropriately determined. Further, it generates a clock of a required frequency to be supplied to each functional circuit unit of the media drive unit 4 and the video signal processing unit 3 according to the operation state of the video camera.

The detection information (photocurrent) read from the disk 51 by the optical head 53 is transmitted to the matrix amplifier 1
07 is also supplied. The matrix amplifier 107 performs required arithmetic processing on the input detection information, thereby obtaining a tracking error signal TE, a focus error signal FE, and groove information (absolute address information recorded as a wobbled groove WG on the disk 51) GFM. Are supplied to the servo circuit 45. That is, the extracted tracking error signal TE and focus error signal FE are supplied to the servo processor 112, and the groove information GFM is stored in the ADIP bandpass filter 108.
Supplied to

The groove information GFM band-limited by the ADIP band-pass filter 108 is supplied to an A / B track detection circuit 109, an ADIP decoder 110, and a CLV.
It is supplied to the processor 111. In the A / B track detecting circuit 109, based on the input groove information GFM, for example, the track currently being traced is determined based on the method described with reference to FIG.
A, TR or B is determined, and the track determination information is transmitted to the driver controller 46.
Output to The ADIP decoder 110 decodes the input groove information GFM to extract an ADIP signal, which is absolute address information on the disk, and outputs the signal to the driver controller 46. The driver controller 46 executes necessary control processing based on the track identification information and the ADIP signal.

The CLV processor 111 receives the clock CLK from the equalizer / PLL circuit 104 and the groove information GFM via the ADIP bandpass filter 108. The CLV processor 111 generates a spindle error signal SPE for CLV servo control based on, for example, an error signal obtained by integrating a phase error between the groove information GFM and the clock CLK, and outputs the spindle error signal SPE to the servo processor 112. The required operation to be executed by the CLV processor 111 is controlled by the driver controller 46.

The servo processor 112 receives various servo control signals based on the tracking error signal TE, focus error signal FE, spindle error signal SPE, track jump command and access command from the driver controller 46 input as described above. (A tracking control signal, a focus control signal, a thread control signal, a spindle control signal, and the like) are generated and output to the servo driver 113. In the servo driver 113,
A required servo drive signal is generated based on the servo control signal supplied from the servo processor 112. Here, the servo drive signal includes a two-axis drive signal (two types of focus direction and tracking direction) for driving the two-axis mechanism, a sled motor drive signal for driving the sled mechanism, and a spindle motor drive signal for driving the spindle motor 52. Becomes By supplying such a servo drive signal to the deck section 5, focus control and tracking control on the disk 51 and CLV control on the spindle motor 52 are performed.

When a recording operation is performed on the disk 51, for example, the data processing /
Scramble / ED from system control circuit 31
The recording data DATAR for the C encoding circuit 115
Will be input. This user record data DAT
Ar is input in synchronization with a transfer clock (data transfer rate) generated by the transfer clock generation circuit 121, for example.

Scramble / EDC encoding circuit 11
In step 5, for example, the recording data DATAR is written into the buffer memory 42 and developed,
DC encoding processing (addition processing of an error detection code by a predetermined method) is performed. After this processing, for example, the ECC processing circuit 116 adds an error correction code according to the RS-PC method to the recording data DATAR developed in the buffer memory 42. The recording data DATAR that has been processed up to this point is read from the buffer memory 42 and transmitted to the RL via the data bus 114.
The signal is supplied to the L (1, 7) modulation circuit 118.

The RLL (1, 7) modulation circuit 118 applies RLL (1, 7) to the input recording data DATAR.
7) A modulation process is performed, and the recording data as the RLL (1, 7) code string is output to the magnetic head drive circuit 119.

By the way, the MD-DATA2 format employs a so-called laser strobe magnetic field modulation system as a recording system for a disk. The laser strobe magnetic field modulation method refers to a recording method in which a magnetic field modulated by recording data is applied to a recording surface of a disk, and a laser beam to be irradiated on the disk is pulsed in synchronization with the recording data. In such a laser strobe magnetic field modulation method, the process of forming a pit edge recorded on a disk does not depend on transient characteristics such as the reversal speed of a magnetic field, but is determined by the laser pulse irradiation timing. For this reason, the laser strobe magnetic field modulation method is compared with, for example, a simple magnetic field modulation method (a method in which a laser beam is constantly irradiated onto a disk and a magnetic field modulated by recording data is applied to a disk recording surface). In this case, it is possible to make the jitter of the recording pit extremely small. That is, the laser strobe magnetic field modulation method is a recording method advantageous for high-density recording.

The magnetic head drive circuit 119 of the media drive unit 4 operates so that a magnetic field modulated by the input recording data is applied from the magnetic head 54 to the disk 51. Further, the RLL (1, 7) modulation circuit 118 outputs a clock synchronized with the recording data to the laser driver 120. The laser driver 120 controls the optical head 5 so that the disk is irradiated with a laser pulse synchronized with recording data generated as a magnetic field by the magnetic head 54 based on the input clock.
The third laser diode is driven. At this time, the laser pulse emitted and output from the laser diode is based on a required laser power suitable for recording. In this way, the recording operation as the laser strobe magnetic field modulation method is enabled by the media drive unit 4 of the present embodiment.

5. Next, a description will be given of an example of the structure of a disk 51 according to the present embodiment. FIG. 7 conceptually shows an example of the structure of a disk 51 corresponding to the present embodiment. Note that the physical format of the disk 51 shown in this figure is as described above with reference to FIGS.

On the disc 51, for example, PTOC and RTOC areas are provided as management information areas. In the PTOC, required management information is recorded in a pit form, for example, in a premastered area (pit area) on the innermost circumference of the disk. The contents of the PTOC cannot be rewritten. For example, a magneto-optical recording area in which magneto-optical recording and reproduction can be performed is formed around the premastered area where the PTOC is recorded. Then, first, the RTOC area is provided for a section of a predetermined size in the innermost circumference. The RTOC records, for example, basic information necessary for managing data recorded on a disc. For example, in the case of this example, as data recorded on the disc,
Information for managing a track (which may be synonymous with a file) and a folder (a structure for grouping and managing tracks) to be described later at the time of recording and reproduction is stored. The contents of the U-TOC in the management area are as follows:
For example, it is assumed that rewriting is sequentially performed in accordance with the result of data recording on a disc and the result of editing processing such as deletion of tracks (files) and folders.

A data area for recording user data is provided on the outer peripheral side of the RTOC.
In the present embodiment, the data area is a volume folder (Volume Folder) located in one root folder.
er). In the present embodiment, a volume is defined as a complete set of user data, and is defined as having only one volume on one disk. The data contained in this volume is stored as folders and tracks below the volume folder, except for those managed by the PTOC and RTOC.

In the volume folder, first,
A predetermined size (for example, 12 clusters) at a physically innermost position (a management track priority area near the RTOC)
Volume Index Trac
k) is placed. The volume index track is defined as an area in which sub-management information is recorded, for example, if the above-mentioned PTOC and RTOC are the main management information, and includes a track (file), a folder, and auxiliary data (Auxiliary Data). And a table in which information for managing packet data forming a property, a title, and a track related to the track is recorded.

Further, at least the first cluster is RT
As a track recorded so as to be located in the management track priority area near the OC, a thumbnail track (Thumb
nailPicture Track) can be placed as an option. In the present embodiment, one file with a predetermined resolution is associated with each file recorded on the disc.
It is possible to have a number of still images as thumbnail images. The thumbnail image is handled as a representative image for making the file visually recognizable. The thumbnail track is recorded together with index information indicating the association with the file (track) recorded on the disc and the storage position of the thumbnail image. The data length of the thumbnail track can be arbitrarily expanded according to the number of stored thumbnail images and the like.

For example, image / audio data recorded by the user by photographing or the like is managed on a file basis, and is placed under the volume folder as a track in the volume folder, or in a folder placed under the volume folder. Will be placed. FIG. 7 shows a state in which a certain file is represented as one track and this track is stored in a certain folder. As described above, a folder has a structure for managing tracks or folders in one group. Therefore, in the structure below the volume folder, an arbitrary number of tracks or folders is stored within the range defined by the maximum number of records that can be stored in the volume folder and the maximum number of levels in the folder hierarchical structure.

An auxiliary data track storing auxiliary data (Auxiliary Data) is stored in the volume folder.
(Auxiliary Data Track) is placed. The information to be stored in the auxiliary data track is arbitrary depending on, for example, an application to be actually applied. In the present embodiment, script information as playback control information is stored.

By the way, the PTO which is the management information
The information stored in the C, RTOC, or even the volume index track (these information is collectively referred to as “management information” in the present embodiment) is read, for example, when a disc is loaded. For example,
The data is held in a predetermined area of the buffer memory 42 (or the buffer memory 32) of the media drive unit 4. Then, at the time of data recording or editing, the management information stored in the buffer memory is rewritten according to the recording result or the editing result, and thereafter, at a predetermined opportunity and timing, the data is stored in the buffer memory. The management information of the disk 51 is rewritten (updated) based on the content of the held management information (however, P
No update is performed for the TOC).

Note that the example of the disk structure shown in this figure is merely an example, and the physical positional relationship of each area on the disk may be changed according to actual use conditions and the like, and data is stored. The structure can be changed.

6. Thumbnail Image Generation Process The thumbnail image stored in the thumbnail track shown in FIG. 7 can be generated by the video camera of the present embodiment. Here, the thumbnail image generation process will be described. deep. Here, a case where a thumbnail image of an image file once recorded on a disk is generated will be described.

As described above, the management information (PTOC, RTOC, volume index track) recorded on the disk 51, for example, is read out at a predetermined timing such as when the disk is loaded, and is stored in the buffer memory 42 (or the buffer memory 42). 32).

The driver controller 46 refers to, for example, management information stored in the buffer memory 42 and records image data designated as a thumbnail image for a file from which a thumbnail image is to be generated. By obtaining an address on the disk and accessing the address to execute a read operation on the disk, image data as a thumbnail image generation source is obtained. This image data is
The data is sequentially transmitted from the media drive unit 4 to the video signal processing unit 3 and supplied to the data processing / system control circuit 31. Unless otherwise specified, the image data specified as the thumbnail image generation source by the management information is assumed to specify, for example, the first frame (or field) image data in the file.

Then, the data processing / system control circuit 31 first controls the MPEG2 video signal processing circuit for the supplied screen data,
Decompression processing is performed according to the two formats, and data decoded to the level of image data in field image units is obtained.

For example, at the stage of image data decoded to the level of the field image unit, usually,
The data is data having an image size (number of pixels) enough to be displayed in a substantially full size on the display screen. Therefore,
After the full-size image data in the unit of the field image is obtained, the reduction processing is performed on the full-size image data so that the actual required thumbnail image size can be obtained. Become. In order to reduce the image size, for example, the original full-size image data is sampled at appropriate timing with respect to the pixel data, and a signal is generated to reconstruct the image data using the sampled pixel data. What is necessary is just to perform a process.

Then, for example, the video controller 38
Generates index information (described with reference to FIG. 7) for the thumbnail image data thus obtained,
Control is performed so that the thumbnail image data is recorded on the thumbnail track of the disk together with the index information. In this way, thumbnail image data corresponding to each file is obtained and recorded on the disc.

In this embodiment, as can be seen from the above description, in addition to image data (including audio data), audio data using only audio, and character information data can be recorded as a file. However, for example, when there is no image data from which the thumbnail image is generated in the file such as audio data and character information data, for example, it is visually determined that the data is audio data or character information data in advance. Prepare image data of a pattern that can be recognized (for example, RO of the video controller 38).
M, or stored in a predetermined area of a disk), and this image data may be used as a thumbnail image.

7. Editing example of the present embodiment 7-1. Script Next, an editing example according to the present embodiment will be described. As an editing example in the present embodiment, basically, at the stage of shooting with the video camera of the present embodiment, the reproduction order is specified for the files (recorded files) obtained by the previous shooting and recording. By doing so, so-called simple seamless editing is enabled.

In performing the editing as described above, in the present embodiment, a script is provided as playback control information capable of giving a required playback output mode for a recorded file. 38 interprets this script to obtain a reproduction output mode (for example, reproduction order) according to the editing result. In the editing stage, the content of the script is updated to execute the editing process. Here, the “script” refers to a procedure writing structure (language) for reproducing and outputting moving image data, still image data, audio data, and document data at the same time.

First, a script used as reproduction control information in the present embodiment will be schematically described.

In this embodiment, SMIL (Synchronized Multimedia Integration Language) is used as a script.
ge). SMIL is a language standardized by W3C (Internet standardization organization) in order to realize, for example, television program broadcasting and presentations on the Internet.
It is intended to realize a chronological presentation or the like based on the grammar of a (super set of TML).

First, the scheduling includes <seq>, <
par>. <Seq>
Means sequential, that is, serial, and the information enclosed by this tag is reproduced in chronological order. <
par> means parallel, that is, parallel,
The information enclosed by the tags is reproduced synchronously.

Here, for example, in a file assumed to be recorded on a disc, video1, video1
2, files of image data represented as video3, video1, video2, video3
When the playback is designated in the order of <seq><video src = “video1”><video src = “video2”><video src = “video3”></seq> Will be

Also, the file video1 → video
2 → video 3 and video 1
For audio1 which is a file of audio data
<Seq><par><video src = “video1”><audio src = “audio1”></par><video src = “video2”><video src = ”video3” The description will be performed as in "></seq>.

A description is also provided for designating a file to be reproduced synchronously with a certain file, such as starting from a position several seconds after the reproduction of the certain file. For example, in a case where a caption (for example, an image as character information) is displayed 5 seconds after the image file of video 1 is displayed (reproduced), <par><video src = “video 1”><image src = "Scratch1" begi
n = “5s”></par> The description is made as follows.

For example, if the user instructs to display the file picture 1 as a still picture file for 5 seconds, <image src = “picture 1” dur
= “5s”>.

[0102] Also, when a so-called frame mute is used to extract and reproduce a part of a certain moving image file, "range" is used. For example, SMPTE (Society of Motion Pictu
<video src = “video1” range
= "Smpte: 10: 07: 00-10: 07: 3"
3 ">.

To repeat a file by designating a certain file, "repeat" is used. For example, vi
If the file of video1 is to be repeated 10 times, <video src = “video1” repeat
at = “10”>.

In the present embodiment, such S
By using a script called MIL as reproduction control information and specifying at least a reproduction order and a frame mute as described later, a simple seamless editing process is performed. Therefore, for example, in the video camera system according to the present embodiment, the subset of XML is facilitated so that the interpretation corresponding to the SMIL and the description (generation) of the script can be performed. For example, the program may be stored in advance in a ROM or the like in the video controller 38 as a program to be executed by the video controller 38, or may be recorded in an application layer of a disc and read out.

In the present embodiment, such a script is generated or updated by the video controller 38, for example, at the editing stage (or at the stage of performing a recording operation). It is to be kept in the area. Then, the script held in the buffer memory 32 in this manner is recorded on the disk at a predetermined opportunity or timing. The script data is stored as a script file for the auxiliary data track (Auxiliary Data Track) described with reference to FIG.
By recording the script on the disk in this way, the next time the disk is newly loaded, the script recorded on the disk is read out, for example,
By holding the data in the buffer memory 32 and referring to the data, it is possible to perform editing and reproduction in accordance with the reproduction order and the like obtained by the previous editing.

7-2. Thumbnail Display and Playback Operation At the time of editing by the video camera of the present embodiment, a so-called thumbnail display for presenting a corresponding thumbnail image for each file recorded on the disc is performed. This thumbnail display is used as a so-called GUI as an operation screen for recording / reproducing and editing operations. Therefore, the thumbnail display in the present embodiment,
A basic reproduction operation when the thumbnail display is used as an operation screen will be described with reference to FIGS.

It is to be noted that the files handled in the following description will be described on the premise that they are recorded files for convenience of description. As described above, the recorded file is a moving image file obtained by recording an image captured by the video camera, and is a file that can also include sound collected by a microphone.

For example, when the main dial 300 is turned on from the off state by operating the main dial 300 in a state where a disk on which files are recorded is loaded into the video camera apparatus of the present embodiment, for example, the display unit For the display screen of FIG. 6A, the thumbnail display shown in FIG. 8 is performed as an initial screen.

In the thumbnail display shown in this figure, thumbnail images of up to 12 files can be displayed. In this case, thumbnail images 401, 401,... Is displayed.

The numerical values (1) to (12) shown in each thumbnail image 401 indicate the file reproduction order specified by the above-described script. That is, in the present embodiment, the thumbnail images are displayed in a predetermined arrangement order according to the file reproduction order specified by the script.

The thumbnail image generation processing and the thumbnail display control will be described later.
For example, a moving image file is obtained by forming a representative image in the moving image as a reduced still image. Therefore, by viewing the thumbnail display of the present embodiment as shown in FIG. It becomes possible to grasp visually.

When a post-recording track to be synchronously reproduced is added to a certain file,
For example, the post-record label 402 is displayed so as to be attached to the thumbnail image, and this is presented to the user.

Note that, for example, it means an audio file to be reproduced in synchronization with a certain video file. Therefore, in actuality, it is apparently reproduced as one file as audio accompanying the image of the certain video file. An audio file (track) placed in the volume is used as the audio file as the post-recording track. In the present embodiment, as described above, management is designated so that synchronous playback of the after-recording track is performed by the description of the script.

In this thumbnail display, 1
A pointer 403 for designating one thumbnail image is displayed. The pointer 403 is, for example, the cross key 3
The display is performed such that adjacent thumbnail images 401 are sequentially moved in a direction according to the operation performed on the thumbnail image 401. The search keys 308, 309
, The pointer 403 may be allowed to move between thumbnail images according to the reproduction order.

In this case, the pointer 403 selects and designates a file serving as a base point of a reproduction or recording start position. For example, with regard to reproduction, the user operates the play key 306 after operating the pointer 403 with respect to the thumbnail image corresponding to the desired file by operating the cross key 310 or the like. To be. As a result, in the video camera, the playback key 306
The reproduction of the file corresponding to the thumbnail image on which the pointer 403 is located at the time of the operation is started. After the reproduction of the file is started as described above, the file is sequentially reproduced in the file reproduction order specified by the script until an operation for stopping the reproduction is performed. Specifically, assuming that reproduction is started by selecting a file in the reproduction order (7) shown in FIG. 8, the reproduction order (8) (9)
File playback is performed in the order of (10)... Also, if the file to be played is managed with a post-recording track attached,
This post-recording track is also reproduced synchronously according to the description contents of the script. When a file is being reproduced, the reproduced image is displayed instead of the thumbnail display shown in FIG. If the reproduction is stopped, the display may return to the thumbnail display shown in FIG. A case where a file is recorded from a state in which a certain thumbnail image has been selected and designated by the pointer 403 will be described later as an example of editing processing.

Next, the above-described thumbnail display and a processing operation for realizing a reproduction operation when the thumbnail display is used as an operation screen will be described with reference to a flowchart of FIG. This processing is realized, for example, by the video controller 38 functioning as a master controller and the driver controller 46 and the camera controller 25 executing control processing as necessary.

For example, when an operation mode in which thumbnail display is required as an initial display, such as when the power of the video camera is turned on, is set, first, in step S101, data is recorded on the auxiliary data track of the disk. Reads the script that is
Then, a process for storing data in the second predetermined area is performed, and the process proceeds to step S102.

In step S102, processing for generating thumbnail display data for performing thumbnail display is executed as follows. Here, a thumbnail image corresponding to each file, which is a part of an image for displaying a thumbnail, is obtained by reading necessary thumbnail image data from the thumbnail image data recorded in the thumbnail track of the disc. Is done. In this case, by referring to the script stored in the buffer memory 32, the thumbnail image of the file whose reproduction order is specified by the script is read from the thumbnail track of the disc,
For example, the data is written and stored in a predetermined area of the buffer memory 32. Then, for example, while using the same buffer memory 32 as a work area, the layout is performed so that a display form as a thumbnail display is obtained for the thumbnail images obtained as described above. In this layout, the file playback order is identified by referring to the script, and according to the file playback order,
The layout position of the thumbnail image is determined. At this time, if there is an image to be laid out other than the thumbnail image, the layout processing is also executed. For example, in the case shown in FIG.
A layout for attaching the post-record label 402 and the like to the thumbnail image is also performed. In addition,
The initial display position of the pointer 403 can be set arbitrarily. For example, the display position of the pointer 403 may be set to the first file in the reproduction order. Thus, thumbnail display data is generated.

In the subsequent step S103, a thumbnail display is performed by executing control processing for display on the display unit 6A based on the thumbnail display data generated as described above.

In the following step S104, it is determined whether or not the moving operation of the pointer 403 has been performed. If it is determined that the operation has been performed, the pointer according to the operation is determined in step S105. 403
After the movement display is performed, the process proceeds to step S106. If it is determined that no operation is performed, the process proceeds to step S106. In step S106,
The process of returning to step S104 is performed until it is determined that an operation for starting reproduction has been performed. In other words, steps S104 to S106 are processing for waiting for the start of reproduction while moving and displaying the pointer 403 in accordance with the pointer moving operation.

If it is determined in step S106 that the reproduction start operation has been performed, the flow advances to step S107 to reproduce the file corresponding to the thumbnail image on which the pointer is located on the thumbnail display. Execute Note that the subsequent reproduction is based on the description contents of the script. The file referred to here is a single file even when a plurality of files are synchronously reproduced by being surrounded by <par> tags. Is to be treated.

Subsequent to step S107, it is first determined in step S108 that a reproduction stop operation is performed. If it is determined that the operation has not been performed, in step S109, the currently reproduced file is stopped. It is determined whether the reproduction of the (current file) has been completed. Here, if the reproduction of the current file has not been completed, step S
Returning to 108, the reproduction of the current file is continued until the reproduction stop operation is performed. If it is determined that the reproduction of the current file has been completed, the process proceeds to step S110, where the reproduction-completed file is reproduced by the script. It is determined whether or not the file is the last one of the files whose order is specified.

If it is determined in step S110 that the file is not the last file, that is, if a file to be reproduced according to the script still remains, the process proceeds to step S111. Step S11
In step 1, a control process for starting reproduction of a file to be reproduced next by referring to the script in accordance with the content of the description is executed, and the process returns to step S108. As a result, after the reproduction of the file is started in step S107, unless the reproduction stop operation or the reproduction of the last file is completed, the files are sequentially reproduced in accordance with the reproduction order and the editing contents according to the description of the script. Reproduction will be performed.

If it is determined in step S108 that the reproduction stop operation has been performed, or if it has been determined in step S110 that the reproduction of the last file has been completed, the flow advances to step S112 to perform reproduction end processing. Proceed to S112. Note that the actual step S1
In the process of 12, the disc playback drive is stopped and, in principle, display control for performing thumbnail display again on the display unit 6A is also executed. In this case, for example, the pointer 403 is arranged on the thumbnail image of the file that has been reproduced last at the end of the reproduction, and the thumbnail display is started. Then, actually, the process returns to the process of step S104 as indicated by the broken arrow. Further, the flowchart of FIG. 9 shows only the processing related to the reproduction from the initial thumbnail display, and the processing related to the recording is not shown here. Processing related to recording will be described later as an example of an editing operation according to the present embodiment.

7-3. Editing Operation (First Example) Next, a first example of an editing operation according to the present embodiment will be described with reference to FIGS. FIG.
In FIG. 8, the same parts as those in FIG. For example, while playing a file,
For example, if the reproduction stop operation is performed, the thumbnail display is performed on the display unit 6A in principle, as described as the processing of step S112 in FIG.

The display screen of the display section 6A in FIG. 10A shows a thumbnail display example displayed after the reproduction is stopped. In this case, the reproduction order of the 12 files is designated by the script. FIG. 10
In (a), thumbnail images corresponding to these twelve files are displayed in the order of reproduction. In this case, since the reproduction stop operation is performed while the file in the reproduction order (7) is being reproduced, the pointer 403 is arranged for the thumbnail image corresponding to the file in the reproduction order (7). It is assumed that it is in the state where it is.

In this state, it is assumed that, for example, the user operates the main dial 300 to set it to the position of "STBY" to enter the recording standby mode. Then, FIG. 10 (b)
As shown in the figure, the display unit 6A displays the current captured image (lens block 1, camera block 2) from the thumbnail display.
To the display of the image obtained by the At this time, the previous file display 404 is displayed at a required position on the screen as shown in the figure. The previous file display 404 indicates, for example, when recording is started from the current recording standby mode, the reproduction order of a file located immediately before the reproduction order set for a file obtained by this recording operation. It is. The playback order in the previous file display 404 is the same as the playback order of the thumbnail image (file) where the pointer 403 is located in the thumbnail display (thumbnail display after the playback is stopped) before the recording standby mode is set. Matches.

From this state, the user presses the release key 30
It is assumed that recording is performed by operating No. 1. Here, the operation indicated by [recording standby mode → recording start operation (pressing release key 301 once) → recording ending operation (pressing release key 301 once) → recording standby mode] is performed three times. The three files a, b, and c are recorded. In this embodiment, the data of these files a, b, and c are recorded in a recordable area (area managed as a free area) which is assumed to have a structure in the volume folder. It is assumed. After that, it is assumed that the user turns the main dial 300 to the “PB” position to release the recording standby mode.

In the present embodiment, when the recording standby mode is canceled, the display returns to the thumbnail display. At this stage, since the files a, b, and c have been additionally recorded, FIG. ), Thumbnails including the files a, b, and c are displayed.

Here, in the thumbnail display shown in FIG. 10A, files designated as reproduction order (1) to reproduction order (12) are referred to as file 1 to file 12 for convenience. In (c), the thumbnail images corresponding to each of the files a, b, and c are:
The image is displayed so as to be inserted between the file 7 and the file 8. This means that the files a, b, and c are designated to be reproduced between the files 7 and 8 with respect to the reproduction order of the original files 1 to 12. Note that files a, b,
The reproduction order between c is in accordance with the recording order. In this case, the files a, b, and c are added under the condition that the maximum number of displayed thumbnail images is 12, so that the last three files 10, 11, and
12 is omitted from the thumbnail display screen. Here, for example, if the thumbnail display has a page structure and the page is turned by a predetermined operation, for example, FIG.
As shown in (d), the remaining files 10, 11,.
Twelve thumbnail images are displayed in the order of reproduction.

In the present embodiment, the thumbnail display immediately after the recording of the files a, b, and c as described above corresponds to the file c as shown in FIG. Pointer 40 for thumbnail image
It is assumed that the state where 3 is displayed is obtained. In other words, if the reproduction start operation is performed after this, the reproduction is performed from the file c, and if the recording is performed, it is assumed that the reproduction order of the recorded file is located after the file c. A presentation is made.

As described above, the layout of the thumbnail display image data is performed in accordance with the file reproduction order specified according to the description contents of the script. Therefore,
At this point, the contents of the script have been updated according to the recording results of the files a, b, and c.

FIG. 11 schematically shows a reproduction mode designated by the script updated according to the above recording result. FIG. 11A shows the file reproduction order of the file 7 and subsequent files corresponding to the thumbnail display shown in FIG. 10A before the files a, b, and c are recorded, according to the reproduction time axis. At this time, it is specified that, for example, after the file 7, the file 8 is sequentially reproduced from the file 8 to the file 9.

After the files a, b, and c are recorded, the reproduction order is designated as shown in FIG. That is, following file 7, file a → file b → file c → file 8 → file 9
.. Are defined as those to be reproduced.

A description example of a script for actually specifying the file reproduction order shown in FIGS. 11A and 11B is shown.
First, the reproduction output mode shown in FIG.
The description contents of the script corresponding to the thumbnail display shown in FIG. Here, it is assumed that each of the files 1 to 12 is image data, and these files are expressed as video 1 to video 12 in the script. <Seq><video src = “video1”><video src = “video2”><video src = “video3”><video src = “video4”><video src = “video5”> video = “vido” ><Video src = “video7”><video src = “video8”><video src = “video9”><video src = “video10”><video src = “video11”><video = video> / Seq>

After the files a, b, and c are additionally recorded, the script corresponding to the reproduction output mode shown in FIG. 11B (the thumbnail display shown in FIGS. 10C and 10D) is displayed. The description contents are as follows. Here, it is also assumed that each of the files 1 to 12 and the files a, b, and c are image data, and these files are referred to as video 1 to video 12 and video
oa, videoob, and videoc. <Seq><video src = “video1”><video src = “video2”><video src = “video3”><video src = “video4”><video src = “video5”> video = “vido” ><Video src = “video7”><video src = “video”><video src = “videoob”><video src = “videooc”><video src = “video8”><vido ” video src = “video10”><video src = “video11”><video src = “video12”></seq>

From the viewpoint of editing such a recording operation, it is possible for the user to perform simple seamless editing in which files are linked in a desired reproduction order while performing a photographing operation. Specifically, for example, it is assumed that a user goes to a sightseeing spot or the like and shoots and records with the video camera of the present embodiment, and some files are recorded on a disc. In the video camera of the present embodiment, when a file is normally recorded, the file reproduction order is sequentially described in the script in correspondence with the recording order.

Here, it is assumed that the file to be recorded next is to be reproduced after a certain file recorded earlier, for example, in view of the editing flow. At this time, for example, the user once performs the operation of reproducing the certain file and reproduces the file, performs the reproduction stop operation when the file is reproduced, performs the recording standby operation as it is, and then performs the recording start operation to perform the desired operation. Are taken. The file recorded in this way is as shown in FIG.
As described with reference to FIG. 0 and FIG. 11, the script specifies that the file should be reproduced following the certain file that has already been recorded. That is, in the present embodiment, at the time of shooting, the file can be recorded while specifying the file reproduction order. In other words, it is possible to perform seamless editing in file units. When specifying the playback order after recording, the thumbnail display can also be used as the operation screen when selecting the file as the base point. Thus, a good product can be obtained.

In the display state shown in FIG. 10A, the pointer can be moved. For example, when the pointer 403 is moved from the state shown in FIG. 10A to another thumbnail image and a file is recorded thereafter, the thumbnail image selected by the moved pointer corresponds to the corresponding file. The newly recorded file is managed on the script in such a manner that the order of reproduction following the file is designated.

7-4. Editing Operation (Second Example) Next, a second example of the editing operation according to the present embodiment will be described with reference to FIG. 10 again and to FIG. In the first example described above, the operation in the case where a reproduction stop operation is performed from the state in which a certain file is being reproduced has been described. This is the operation when performing.

Here, it is assumed that the user performs an operation for pausing while a certain file is being reproduced. Then, the reproduction of the file is paused. At this time, instead of the thumbnail display shown in FIG. 10A, a still image (paused image) of the file at the time of the temporary stop is displayed on the display screen of the display unit 6A.

In this state, for example, if the user operates the main dial 300 to enter the recording standby mode, the display screen of the display unit 6A at this time is similar to that of the first example. The display is switched to the display of the current captured image (including the previous file display 404) shown in FIG.

From this state, it is assumed that three files a, b, and c are recorded in the same manner as in the first example, and then the recording standby mode is released.

At the stage after the release of the recording standby mode, the thumbnail display performed on the display unit 6A is as follows.
For example, as in the case of the first example, the thumbnails including the files a, b, and c are displayed as shown in FIGS. 10C and 10D, so that the files a, b, and c are recorded. Are presented in a new playback order.

However, in the second example, the script is updated so as to obtain a reproduction output mode as described below. FIG. 12 schematically shows a reproduction output mode specified by a script when the files a, b, and c are recorded as described above by the editing process of the second example.
FIG. 12A shows the file reproduction order of the file 7 and subsequent files corresponding to the thumbnail display shown in FIG. 10A before the files a, b, and c are recorded according to the reproduction time axis. Here, as shown in FIG.
It is assumed that the reproduction pause operation has been performed at the time point when the reproduction of 10 seconds has elapsed.

If the files a, b, and c are recorded from the state of the reproduction pause, the description contents are updated on the script so that the file reproduction shown in FIG. 12B is performed. Things.

That is, as for the file 7, the reproduction of the data after 10 seconds from the head at which the reproduction is temporarily stopped is not performed, and the reproduction of the file is completed at a position 10 seconds after the head. Shall be. Then, after the file 7 is reproduced for 10 seconds, the file 7 is followed by the file a → the file b → the file c → the file 8
→ It is defined to be reproduced as file 9. In other words, when recording is performed after the reproduction of a certain file is paused, after the data position at which the reproduction of the certain file has been paused, pseudo overwrite erasure is performed by a newly recorded file. It is stipulated on the script to be treated as if it were done.

At this time, file a → file b
→ The file c is recorded in an area managed as a free area, and the data of the file 7 recorded on the disc is not actually overwritten and erased as a matter of course. It is only specified on the script as if the files a, b, and c were overwritten and erased by the recording operation. In other words, in such seamless editing by overwriting, instead of directly performing the editing process on the data of the file 7,
Editing on the script is performed to the last.
Therefore, for example, by performing necessary editing at a later opportunity to change the description content of the script, it is possible to restore the entire data section as the file 7 so that it can be reproduced. For files subsequent to file c and subsequent to file 8, all data sections forming the file are defined as being reproduced. When the section after the paused position is treated as being overwritten as in the file 7 in this case, for example, in the thumbnail display shown in FIG. It is preferable that some display is provided on the image to indicate to the user that the image has been overwritten.

FIG. 12B shows a description example of a script for actually designating the reproduction and output mode of the file shown in FIG. In addition,
The playback output mode of the file shown in FIG.
Since this is the same as FIG. 11A shown in the first example, it is omitted here.

The script corresponding to FIG. 12B is as follows. Note that each of the files 1-1
2 and files a, b, and c are image data, and on the script, these files are video
1 to video 12, video, video, v
It is expressed as ideoc. <Seq><video src = “video1”><video src = “video2”><video src = “video3”><video src = “video4”><video src = “video5”> video = “vido” ><Video src = “video7” range
= "00:00:00-00:00:10"><<
<<<< Reproduce until 10th second <video src = “video”><video src = “video”><video src = “video”><video src = “video 8”><video src = ”video 9” src = “video10”><video src = “video11”><video src = “video12”></seq>

By obtaining such a recording operation (ie, the editing operation as the second example), for example, the user can perform the seamless editing in the same manner as the editing of the first example described above. In this case, it is stipulated that the reproduction of the file whose reproduction has been temporarily stopped is not performed after the paused position. For this reason, for example, when a user sets a playback order following a certain file recorded earlier and inserts a recorded file, as a flow of editing, in the certain file, a data section after a certain data position is When it is determined that the file need not be reproduced, the file may be reproduced and paused immediately before the position at which the user wants to delete, and then the file may be recorded. Then, at the time of actual shooting, by using the editing function as the editing operation of the second example in combination with the editing function as the editing operation of the above-described first example, a seamless pattern having a higher degree of freedom can be obtained. Editing becomes possible.

7-5. Processing Operation The processing operation for realizing the recording operation as the editing operation of the first and second examples described above is described with reference to FIGS.
This will be described with reference to the flowchart of FIG. The processing shown in this figure shows a case where the editing operation (recording operation) of the first example and the second example can be used together. Also, in the processing operation shown in this figure, the data processing / system control circuit 31 and the driver controller 46 appropriately control the necessary functional circuit units based on the video controller 38 controlling the overall operation. It is realized by.

FIG. 13 shows a processing operation which responds when a pause or reproduction stop operation is performed from a state where a file is being reproduced in accordance with the description content of the script. In the routine shown in this figure, while the file is being played, first, the process waits for a pause operation or a playback stop operation to be performed in steps S201 and S205.

If it is determined in step S201 that a pause operation has been performed, step S202 is performed.
Then, a control process for temporarily stopping the reproduction of the file so far is executed, and in a succeeding step S203, a control process for displaying the paused image on the display unit 6A is executed. Then, the next step S204
Stores the pause position of the file. The pause position here may be the reproduction time information of the file at the time when the pause operation is performed (for example, based on the SMPTE time code). What is necessary is just to hold | maintain in internal RAM etc.

On the other hand, if it is determined in step S205 that the reproduction stop operation has been performed, the flow advances to step S206 to execute control for stopping the file reproduction so far.

In the next step S208, control processing for displaying thumbnails on the display section 6A is executed. In this step S208, FIG.
The thumbnail display may be performed by the processing in accordance with steps S102 and S103 described above. However, if the thumbnail display data has already been generated and once the thumbnail display has been performed, the thumbnail display data is stored in the buffer memory 32. In this way, the thumbnail display may be performed using the thumbnail display data in the buffer memory 32. In displaying the thumbnails in step S207, the pointer is placed on the thumbnail image corresponding to the file whose reproduction has been stopped, so that the thumbnail display data is updated (generated) and displayed and output. You. This routine is exited after the processing of step S204 or step S208 is executed. For example, it is possible to shift to the processing of FIG. 14 described below.

The processing shown in FIG. 14 is a processing operation after the reproduction or stop of the file is performed.
At the stage of shifting to this process, the display section 6A is in a state where thumbnail display (corresponding to a reproduction stop operation) or display of a paused image (corresponding to a pause operation) is being performed.

In step S301, it is determined whether or not the recording standby mode has been set by a user operation. If a negative result is obtained, step S30 is performed.
According to 9, it waits until the recording standby mode is set until another valid key operation (including an operation for canceling the recording standby mode) is performed. Step S30
If it is determined in step 9 that another valid key operation has been performed, in step S310, processing corresponding to the actually performed key operation is performed, and the process exits this routine. Note that the other valid key operations include an operation for moving the pointer 403 when the thumbnail image is displayed, and a control process for moving and displaying the pointer 403 in accordance with the operation in step S310. Is executed, the process returns to step S301 by exiting this routine, for example.

If it is determined in step S301 that the recording standby mode has been set, step S3 is reached.
At 02, a control process for displaying a captured image on the display unit 6A is executed based on image data currently captured by the video camera and transmitted from the camera block. Then, in step S303, it is determined whether or not a recording start operation (pressing operation of the release key 301) is performed. If the recording start operation is not performed, the process returns to step S301. .

On the other hand, if it is determined in step S303 that the recording start operation has been performed, the flow advances to step S304 to access a free area on the disk and record the current captured image as a file. Control processing to perform the control. Then, the next step S30
In step S30, it is determined that the recording end operation (pressing operation of the release key 301) is performed in step S5.
4 to execute the data recording.

If it is determined in step S305 that the recording end operation has been performed, the flow advances to step S306 to determine whether or not the operation before the recording standby is a pause operation.

If a negative result is obtained in step S306 that the operation before the recording standby is not a temporary stop operation, the flow advances to step S307 to execute the first operation.
Execute script update processing corresponding to the editing operation of the example. Here, although not shown as a processing operation, when the recording standby mode is set, the reproduction order of the file corresponding to the thumbnail image where the pointer is located on the thumbnail display immediately before the recording standby mode is determined on the script. The video controller 38 holds identification information for identification. And
In step S307, the contents of the script in the playback order are updated so that the previously recorded file is played next to the file specified by the identification information. In this case, for example, the video controller 38 uses the XML prepared as described above.
The process for updating and describing the script is executed using the subset of.

On the other hand, if it is determined in step S306 that the operation before the recording standby is a temporary stop operation, the flow advances to step S308. In step S308, a script updating process corresponding to the editing operation of the second example is executed. In other words, by referring to the temporary stop position information of the file held in step S204 in FIG. 13, for the file in which the file is temporarily stopped, from the beginning of the data to the data section at the time of the temporary stop. So that "ra
In addition to this file, a process of updating the description of the script is executed so that the newly recorded file is reproduced in the reproduction order following this file. The script file updated in step S307 or S308 in this manner is
Although not shown here, by being recorded on the auxiliary data track of the disc at predetermined times and at predetermined times, the script recorded on the disc is also updated with new contents.

After exiting the processing of steps S307 and S308, this routine is exited once.
It is made possible to return to step S301 again. As a result, when the user operates the release key 301 to resume recording, as described above as the specific examples of the first and second examples of the editing operation, the file a → b → c It is possible to record the file sequentially and continuously. Then, for example, file a →
Step S307 corresponding to sequential recording of b → c
Alternatively, as the processing in step S308, the script is updated such that the files are inserted in the playback order of the files a → b → c between the file 7 and the file 8.

Further, after a certain file is recorded under the processing shown in FIG. 14, when the recording standby mode is canceled and the display shifts to the thumbnail display, the script updated by the recording operation so far is executed. By generating the thumbnail display data in accordance with the content, the thumbnail display as shown in FIGS. 10C and 10D is performed.

It should be noted that the present invention is not limited to the above-described embodiment, and various changes can be made. The actual display form of the thumbnail display, the operation form in the editing example (recording operation), and the like are not limited. It may be changed in consideration of actual use conditions, usability, and the like.

In the video camera of the present embodiment, a disc recording / reproducing device based on MD-DATA2 is used as a video recording / reproducing portion. However, the video recording / reproducing portion has a configuration other than that of the present embodiment. Alternatively, the recording / reproducing apparatus may be a recording / reproducing apparatus compatible with other types of disc-shaped recording media. Further, in the present embodiment, the description has been made on the assumption that the MPEG2 system is employed for compressing the moving image data. However, for example, a system capable of compressing and encoding other moving image data may be employed. Also, the compression method for still image data and audio data need not be particularly limited to those exemplified as the present embodiment (JPEG, ATRAC2, etc.).

[0168]

As described above, the present invention has the following effects. First, based on a script (reproduction control information) for specifying a reproduction output mode of a file that can be formed by image / audio data, including reproduction order specification information, continuous reproduction of files in accordance with the reproduction order of the script is started. By performing control processing relating to required recording (including editing processing) or reproduction, even if editing such as changing the reproduction order is performed according to the recording operation, for example, the data is already recorded on the disc. Editing and the like can be performed by rewriting the script without erasing the original file data or changing the data contents. That is, even if some editing or the like is repeated, the actual data of the target file is not affected, and the same contents as at the time of recording are always maintained on the disk.

In addition, by displaying the reproduction order of the files in accordance with the contents of the script and displaying the thumbnails representing the respective files, the user can perform operations for recording and reproduction including editing. When doing
On this thumbnail display, the currently specified file playback order can be visually confirmed. In addition, by displaying a file serving as a base point of a recording or reproduction position on the thumbnail display, for example, the use efficiency of the thumbnail display as an operation screen is further improved.

[0170] Then, in accordance with a rule such as selecting a file whose reproduction has been stopped or paused, for example, a file serving as a base point for recording or reproduction is selected and designated.
When a new file is recorded in a state where a certain file is selected and designated, the recorded file is played immediately before or immediately after the selected file. By adopting a configuration in which the script is updated so as to be specified as what should be performed, it becomes possible for the user to arbitrarily determine the playback order before the file recording is started. Therefore, for example, simple seamless editing in file units can be performed in parallel with the file recording operation.

For example, when updating a script for designating the playback order of a newly recorded file under the above configuration, when the playback of the selected and designated file is stopped or paused, In the data section after the data position, the content that prevents playback is also described as a script (this is performed at the time of pause in the embodiment), so that it is file-based,
More advanced seamless editing can be easily performed.

The recording and reproducing apparatus of the present invention includes:
For example, a so-called video camera which includes an image pickup unit such as a camera device and a sound input unit capable of inputting external sound from a microphone or the like as a sound signal, and can record image / sound data obtained by the image pickup unit and the sound input unit. By adopting the configuration described above, the above-described editing processing can be performed in real time at the site where the user is shooting using the video camera, and the editing function is more effectively utilized. It is something that will be.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a track structure of a disc corresponding to a video camera according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing a track portion of a disc corresponding to the video camera of the embodiment in an enlarged manner.

FIG. 3 is an explanatory diagram showing specifications of a disc corresponding to the video camera of the embodiment.

FIG. 4 is a block diagram of an internal configuration of the video camera according to the embodiment.

FIG. 5 is a block diagram of an internal configuration of a media drive unit of the video camera according to the embodiment.

FIG. 6 is a side view, a plan view, and the like of the video camera according to the embodiment;
And a rear view.

FIG. 7 is a conceptual diagram showing an example of a data structure in a disk according to the embodiment.

FIG. 8 is an explanatory diagram showing a display form example of a thumbnail display according to the embodiment.

FIG. 9 is a flowchart for realizing a thumbnail display and reproduction operation as an embodiment.

FIG. 10 is an explanatory diagram showing a display on a display unit according to an editing operation as a first example in the embodiment;

FIG. 11 is an explanatory diagram showing a file reproduction output mode obtained by an editing operation as a first example.

FIG. 12 is an explanatory diagram showing a file reproduction output mode obtained by an editing operation as a second example.

FIG. 13 is a flowchart showing a processing operation for realizing the editing operation of the first and second examples.

FIG. 14 is a flowchart showing processing operations assumed to be subsequent to the processing shown in FIG. 13 as processing operations for realizing the editing operations of the first and second examples.

[Explanation of symbols]

1 lens block, 2 camera block, 3 video signal processing section, 4 media drive section, 5 deck section,
6 display / image / audio input / output unit, 6A display unit, 7 operation unit, 8 external interface, 9 power supply block,
Reference Signs List 11 optical system, 12 motor unit, 22 sample hold / AGC circuit, 23 A / D converter, 24 timing generator, 25 camera controller, 31
Data processing / system control circuit, 32 buffer memory, 33 video signal processing circuit, 34 memory, 35 motion detection circuit, 36 memory, 37 audio compression encoder / decoder, 38 video controller,
41 MD-DATA2 encoder / decoder, 42
Buffer memory, 43 binarization circuit, 44 RF signal processing circuit, 45 servo circuit, 46 driver controller, 51 disk, 52 spindle motor, 53
Optical head, 54 magnetic head, 55 thread motor, 61 video D / A converter, 62 display controller, 63 composite signal processing circuit, 64 A /
D converter, 65 D / A converter, 66 amplifier, 101 RF amplifier, 103 AGC / clamp circuit, 104 equalizer / PLL circuit, 105 Viterbi decoder, 106 RLL (1, 7) demodulation circuit, 107
Matrix amplifier, 108 ADIP bandpass filter, 109 A / B track detection circuit, 110 ADI
P decoder, 111 CLV processor, 112 servo processor, 113 servo driver, 114 data bus, 115 scramble / EDC encode circuit, 116 ECC processing circuit, 117 descramble / EDC decode circuit, 118 RLL (1, 7) modulation circuit, 119 Magnetic head drive circuit, 120 laser driver, 121 transfer clock generation circuit, 201 camera lens, 202 microphone, 203 disk slot, 204 viewfinder, 205 speaker, 3
00 main dial, 301 release key, 304
Zoom key, 305 Eject key, 306 Play key, 307 Stop key, 308, 309 Search key,
310 Cross key, 401 Thumbnail image, 402
Dubbing label, 403 pointer, Ld land, N
WG non-wobbled groove, WG wobbled groove, Tr A, Tr B track

Claims (8)

[Claims] 1. A recording / reproducing apparatus capable of recording / reproducing at least a disk-shaped recording medium on which image data and audio data in a predetermined recording / reproducing management unit can be recorded. Control means for performing required control processing including control relating to recording or reproduction of data, wherein the control means associates image data and audio data by one or more of the recording / reproduction management units with one The file can be managed so that it can be played back, and at least information for designating the playback order of the file is included. Based on playback control information for controlling a required playback output mode for the file, the file is designated by the playback control information. That the required control processes described above, including the playback of files in accordance with the playback order to be performed, can be executed. Recording / playback device. 2. The display device according to claim 1, wherein the control unit performs display control for displaying all or a part of the thumbnail images generated corresponding to each file managed based on the reproduction control information on a display unit. After being executable, the required thumbnail images are displayed on the display means in the arrangement order corresponding to the reproduction order of the files specified by the reproduction control information, so that the thumbnail images are recorded on the disc-shaped recording medium. 2. The recording / reproducing apparatus according to claim 1, wherein a display control for performing a reproduction order display for presenting a reproduction order of a file to be executed is executable. 3. A file selection means for selecting and specifying a file corresponding to a thumbnail image as a file serving as a base point of recording or reproduction, wherein the control means is adapted to perform the reproduction order display when the reproduction order display is being performed. When a file is selected by the file selection means, a recording / reproduction position display indicating a recording or reproduction position based on the selected file can be executed on the reproduction order display. 3. The recording / reproducing apparatus according to claim 2, wherein: 4. A file selection means for selecting and specifying a file serving as a base point for recording or reproduction, wherein the control means is configured to newly select a file in a state where the file is selected by the file selection means. When a file is recorded in the file, the order of reproduction of the recorded file is specified so as to be reproduced immediately before or immediately after the file selected by the file selecting means. 2. The recording / reproducing apparatus according to claim 1, wherein a control process for updating the reproduction control information is executable. 5. When the reproduction is stopped or paused in a state where the reproduction is performed in the file reproduction order according to the reproduction control information, the reproduction is stopped or paused. 5. The recording / reproducing apparatus according to claim 4, wherein the apparatus is configured to select a file. 6. The control means may specify that the recorded file is to be reproduced immediately after the file selected by the file selecting means as a reproduction order of the recorded file. The reproduction control information is configured to be updated so that the data section after the data position when the reproduction of the file is stopped or paused is defined as not to be reproduced. The recording / reproducing apparatus according to claim 5, wherein 7. The recording / reproducing apparatus according to claim 1, further comprising: an imaging unit; and an image recording unit that can record the captured image obtained by the imaging unit as the image data on the disk-shaped recording medium. The recording / reproducing apparatus according to claim 1. 8. A recording / reproducing apparatus comprising: an audio input unit capable of inputting external audio to obtain an audio signal; an audio signal obtained by the audio input unit as the audio data; 2. The recording / reproducing apparatus according to claim 1, further comprising an audio recording means capable of recording the information on the recording medium.