JP2005295584A - Editing method and editing apparatus - Google Patents

Abstract

[PROBLEMS] To improve editing efficiency.
A camera unit 100, a first recording unit 150 using a tape-shaped recording medium 160, a signal processing unit 200 for compressing an imaged video signal, and a second for recording this output on a non-tape-shaped recording medium 260. The recording unit 250, the control unit 120, and the information adding unit 140 for adding information, and a first edit list for creating an edit list using the non-tape recording medium 260. Based on the editing system 400, the edit list read from the non-tape-shaped recording medium 380, the playback device 500 is controlled, and the playback device 500 is configured to play back the target material. And an editing system 550.
[Selection] Figure 1

Description

  The present invention relates to a video signal recording apparatus, an editing method, and a system suitable for application to, for example, an editing system.

  Conventionally, broadcasting stations often use video and audio recorded in a video tape cassette using a camera-integrated VTR as video and audio used in a program. The video and audio information recorded on the video tape recorder by the camera-integrated VTR are rarely used in the program, and most of them are extracted and used by editing processing. There are many cases. A processing procedure from recording of video and audio information to a video tape cassette by the camera-integrated VTR to editing of the recorded video and audio information is as described below, for example.

  By recording the camera-integrated VTR during recording, the video and audio information of the subject is recorded in a video tape cassette. Next, the video tape cassette is set in the editing VTR, and the operation keys of the editing machine are operated so that the VTR is in a playback state, and the playback video and audio information are monitored. Then, the desired in point and out point are designated to the editing machine. As a result, the editing machine records the reel ID data of the video tape recorder, the time code data of the IN point and the OUT point, etc. as EDL (edit list) data on a floppy (registered trademark) disk or the like. . This is what is called offline editing.

  Subsequently, online editing is performed to specify the material to be actually broadcast in more detail. What is required at this time is a floppy disk on which edit list data created during offline editing is recorded and a video tape cassette on which material is recorded. The video tape cassette is set in the VTR for online editing, and the floppy disk is set in the floppy disk drive connected to the editing machine for online editing.

  As a result, the editing machine for online editing reads the edit list data from the set floppy disk, and the video and audio recorded in the set video tape cassette based on the read edit list data. Of the information, the video and audio information in the range specified on the edit list data is sequentially reproduced. The editor who performs online editing, while monitoring the playback video and audio information, performs finer setting of the in and out points, and also transmits the playback video and audio information that is played back based on the edit list data. The video tape cassette set in the VTR is recorded. Of course, it is also possible that a video tape cassette in which the material is recorded is set in the cassette autochanger, and is reproduced and transmitted as it is at a preset broadcast time based on the edit list data.

  By the way, the problem in the editing process as described above is that the recording medium is a video tape cassette, so fast-forwarding or rewinding when determining the in-point and out-point during off-line or online editing. This is a reduction in editing efficiency due to such processing. Since the video tape cassette is a tape-shaped recording medium, for example, in order to determine the in point, the position on the magnetic tape of the video tape cassette in which the material is recorded is set to the head position, or In order to decide where to use, it is necessary to play back from the beginning position over a long time. The most time is spent in the editing process, rather than the editing content itself, rather than the content of the tape itself. It is no exaggeration to say that the travel time of the tape-shaped recording medium for setting the position to a desired position.

  The present invention has been made in consideration of such points, and an object of the present invention is to propose a video signal recording apparatus, an editing method, and a system thereof that can greatly improve editing efficiency.

  The present invention specifies a camera-integrated recording apparatus and an edit point on a recording medium on which a subject image is recorded in the camera-integrated recording apparatus, and generates an edit list including time information of the specified edit point. And a second editing device that controls the reproduction of the recording medium on which the video of the subject is recorded based on the contents of the editing list created in the first editing system. In the editing system, the camera-integrated recording apparatus includes a camera unit that captures an image of a subject, a first recording unit that records a video signal from the camera unit on a tape-shaped recording medium, and the camera unit. A signal processing unit that compresses the video signal from the video signal, a second recording unit that records the output from the signal processing unit on a first non-tape recording medium, the camera unit, and the first Notation And a control means for controlling the second recording unit, and the first editing device decompresses the compressed captured video signal recorded on the first non-tape recording medium. Expanding means, monitoring means for monitoring the video signal expanded by the expanding means, operation key group for designating editing points on the first non-tape recording medium, and the first Storage means for storing the identification information of the tape-shaped recording medium read from the non-tape-shaped recording medium and the time information of the editing point when the editing point on the first non-tape-shaped recording medium is designated And a recording means for recording an edit list composed of the identification information and the time information stored in the storage means as a file on a second non-tape recording medium, and the second editing device includes: tape Reproducing means for reproducing the recording medium, reading means for reading the edit list recorded on the second non-tape recording medium, storage means for storing the edit list read by the reading means, and the storage Reproduction control means for supplying a control signal to the reproducing means according to the contents of the edit list stored in the means and reproducing the target material on the tape-shaped recording medium set in the reproducing means. . According to the present invention described above, in the camera-integrated recording apparatus, the captured video signal is recorded as it is on the tape-shaped recording medium, and the compressed captured video signal is recorded on the first recording medium. Next, in the first editing apparatus, when the identification information of the tape-shaped recording medium is held in the storage means, and the editing point on the first recording medium is designated, the time information of the editing point Is stored in the storage means, and the editing process is completed, the edit list stored in the storage means is recorded as file data on the second non-tape recording medium. Next, based on the edit list read from the second non-tape recording medium, the designated video signal is reproduced from the tape recording medium. The additional data is recorded on the first non-tape recording medium, and the additional data is displayed on the second display means in the second editing apparatus.

  According to the present invention described above, in the camera-integrated recording apparatus, the captured video signal is recorded as it is on the tape-shaped recording medium, and the compressed captured video signal is recorded on the first recording medium. Next, in the first editing apparatus, when the identification information of the tape-shaped recording medium is held in the storage means, and the editing point on the first recording medium is designated, the time information of the editing point Is stored in the storage means, and the editing process is completed, the edit list stored in the storage means is recorded as file data on the second non-tape recording medium. Next, based on the edit list read from the second non-tape recording medium, the designated video signal is reproduced from the tape recording medium. Therefore, the editing point designation process in the first editing apparatus can be performed at high speed, and the efficiency of the editing process can be greatly improved. The additional data is recorded on the first non-tape recording medium, and the additional data is displayed on the second display means in the second editing apparatus. Therefore, it is possible to search for the position to be an editing point in the first and second editing apparatuses at high speed, and thus to greatly improve the efficiency of the editing process.

Hereinafter, embodiments of the video signal recording apparatus, editing method, and system of the present invention will be described in detail with reference to FIGS.
In the description of the embodiment of the video signal recording apparatus, editing method and system of the present invention, the following item descriptions are described at the head of each item, and the items are described in the following order.

* Summary of Invention Outline of the present invention (FIG. 1)
* Embodiment B. Configuration of camera-integrated VTR and explanation of its operation (FIG. 2)
C. Explanation of control operation of camera-integrated VTR (Fig. 3)
D. Configuration of offline editing system and description of its operation (Fig. 4)
E. Explanation of operations in offline editing processing (FIGS. 5 to 8)
F. Configuration and operation of online editing system (Fig. 9)
G. Explanation of operation in online editing process (FIGS. 10 and 11)

[Summary of Invention]

  A. Outline of the present invention (FIG. 1)

  FIG. 1 is an explanatory diagram for explaining the outline of the video signal recording apparatus, editing method and system of the present invention, FIG. 1A is a configuration diagram of a camera-integrated recording apparatus, and FIG. 1B is a first editing system. FIG. 1C is a configuration diagram of the second editing system.

  A camera-integrated VTR 300 shown in FIG. 1A includes a camera unit 100, a first recording unit 150, a signal processing unit 200, a second recording unit 250, and an information adding unit 140 for adding additional data. And a control unit 120 that controls the above-described units. The first recording unit 150 records the video and audio signals from the camera unit 100 on the tape-shaped recording medium 160 as they are. The second recording unit 250 records the video and audio signals from the camera unit 100 compressed by the signal processing unit 200 on the non-tape recording medium 260. Here, the non-tape-shaped recording medium 260 can greatly improve the access speed as compared with the tape-shaped recording medium, and is a disk-shaped recording medium, for example.

  A first editing system 400 shown in FIG. 1B is a so-called offline editing system, and includes an editing machine 350. The editing machine 350 reproduces the non-tape recording medium 260 on which video and audio signals are recorded by the camera-integrated VTR 300 shown in FIG. 1A, and monitors the reproduced video and audio while operating an operation unit (not shown). In this way, the IN point and OUT point are designated and an edit list is created. The created edit list data is recorded on the non-tape recording medium 380.

  A second editing system 550 shown in FIG. 1C is a so-called editing system for online editing, and includes an editing machine 450 and a playback device 500 controlled by the editing machine 450. This second editing system 550 controls the playback device 500 based on the contents of editing created by the first editing system recorded on the non-tape recording medium 380, and is shown in FIG. 1A. The tape-like recording medium 160 on which video and audio signals are recorded is reproduced by the camera-integrated VTR 300. Here, since the case of “sending” indicated by a broken-line arrow is assumed, the case where the playback apparatus 500 is used is shown. However, when the recording apparatus 600 is dubbed, the playback apparatus 500 It becomes a recording device.

  That is, in the present invention, as shown in FIG. 1, when recording is performed with the camera-integrated VTR 300, the video and audio signals from the camera unit 100 are directly compressed in a tape form without being compressed by the first recording unit 150. In addition to recording on the recording medium 160, the video and audio signals from the camera unit 100 are compressed by the signal processing unit 200 and recorded on the non-tape recording medium 260 by the second recording unit 250. During offline editing, the first editing system 400 determines editing points such as in and out points while monitoring the compressed video and audio signals recorded on the non-tape recording medium 380. List data is generated, and the edited list data is recorded on the non-tape recording medium 380. In online editing, the tape-shaped recording medium 160 is set in the playback device 500, the non-tape-shaped recording medium 380 is set in the editing machine 450, and the edit list data recorded on the non-tape-shaped recording medium 380 is recorded. Therefore, the second editing system 550 controls the playback device 500 to output the material based on the edit list data.

  In the present invention, additional information can also be recorded by the camera-integrated VTR 300. As this additional information, for example, photographer information, position information, and the like are included. These pieces of information are recorded on the tape-shaped recording medium 160 by the first recording unit 150 and also recorded on the non-tape-shaped recording medium 260 by the second recording unit 250. Then, when performing offline editing in the first editing system 400 or when performing online editing in the second editing system 550, an index for displaying the additional information and making it easier to find editing points. To be used.

[Effects derived from the explanation]
Therefore, offline editing can be performed using the non-tape recording medium 260 in which the compressed video and audio signals are recorded, and the tape is recorded on the tape recording medium 160 based on the edit list data generated at that time. Since the material can be reproduced, there is an effect that the editing efficiency can be greatly improved, and that more effective editing, for example, editing intended by the photographer can be performed. Hereinafter, more specific examples will be described as embodiments.

[Embodiment]

  B. Configuration of camera-integrated VTR and explanation of its operation (FIG. 2)

  FIG. 2 is a configuration diagram showing a configuration example of a camera-integrated VTR, and this camera-integrated VTR corresponds to the camera-integrated VTR 300 shown in FIG. 1A.

[Connection and configuration]
The camera-integrated VTR shown in FIG. 2 includes a camera unit 100, a first recording unit 150, a signal processing unit 200, a second recording unit 250, the camera unit 100, the first recording unit 150, A system controller 120 that controls the signal processing unit 200 and the second recording unit 250, an operation panel 110, a time code generation circuit 149, a sphygmomanometer 148, and a GPS (Global Positioning System) 147 are configured. .

  Here, the sphygmomanometer 148 is attached to, for example, the thumb or wrist of a user of a camera-integrated VTR, and blood pressure data and pulse data obtained by the sphygmomanometer 148 are obtained by the second recording unit 250. These are recorded on an IC card 252 to be described later, and are used as index information for searching edit points and the like during offline editing described later. The GPS 147 is mounted on, for example, a camera-integrated VTR or carried by a user, and position data obtained by the GPS 148 is recorded on an IC card 252 to be described later by the second recording unit 250. It is used as index information for searching for editing points during offline editing, which will be described later. The sphygmomanometer 148 and the GPS 147 correspond to the information adding unit 140 shown in FIG.

  The camera unit 100 includes an optical system 101, a CCD (Charge Coupled Device) 102 that converts light from the optical system 101 into an electrical signal, a preamplifier 103, an A / D converter 104, a video signal processing circuit 105, and a microphone 106. And a preamplifier 107, an A-D converter 108, and an audio signal processing circuit 109. Here, the video signal processing circuit 105 performs various correction processes such as white balance, knee correction, black balance, gamma correction, and shading correction in addition to the addition of the synchronization signal. These various correction information are recorded on the IC card 252 to be described later by the second recording unit 250, and are used as index information for searching edit points and the like during offline editing described later.

  The first recording unit 150 adds an outer code error correction code and an inner code error correction code to the video signal from the video signal processing circuit 105 and the audio signal from the audio signal processing circuit 109, respectively. An error correction code adding circuit 151 for converting into a code format, a channel coding circuit 152 for performing digital modulation processing on the output from the error correction code adding circuit 151 by channel coding, a recording amplifier circuit 153, and a cassette compartment 154 It consists of. The cassette compartment 154 includes a tape loading mechanism for loading the magnetic tape of the video / tape / cassette, a drive system for performing these operations, a drum motor, and a rotating drum on which a magnetic head is mounted. Consists of.

  The signal processing unit 200 adds a video compression circuit 201 that compresses the video signal from the video signal processing circuit 105, an audio compression circuit 202 that compresses the audio signal from the audio signal processing circuit 109, and an error correction code similar to the above. Error correction code adding circuit 203. Here, the video compression circuit 201 is, for example, a moving image compression process compliant with MPEG (Motion Picture Expert Group) using a motion detection process, a still image compression process compliant with JPEG (Joint Photographic Coding Experts Group), a simple A compression process using thinning can be employed. For example, in the case of 16-bit digital audio data, the audio compression circuit 202 can employ compression processing by simple decimation such as truncating the lower 8 bits.

  The second recording means includes an IC card controller 251, an IC card slot 253, and an IC card 252 set in the IC card slot 253. Here, the IC card is composed of, for example, a hard disk or a flash memory. For example, an IC card conforming to PCMCIA can be used.

  The system controller 120 includes a memory 120a, a data writing / reading unit 120b for writing data to and reading data from the memory 120a, the camera unit 100, the first recording unit 150, and a signal processing unit. 200 and the second recording unit 250, a control unit 120 c for controlling the data, an input / output unit 120 d for performing data input / output processing, time code data from the time code generation circuit 149, blood pressure and pulse from the sphygmomanometer 148 Additional data such as data, position data from the GPS 147, reel ID data input via the operation unit 112, setup data (correction information such as gamma and knee correction) of the camera unit 100, the video compression circuit 201 and the audio compression Compressed video signal and pressure respectively compressed by the circuit 202 Constituted by the information adding means 120e to be added to the audio signal.

[Operation]
The purpose of the camera-integrated VTR shown in FIG. 2 is to record a captured video signal and a collected audio signal, and to record additional data. The operation will be described on the assumption of the above.

  When the camera-integrated VTR is turned on, light incident on the CCD 102 from the optical system 101 is photoelectrically converted in the CCD 102, supplied to the preamplifier 103 as an electric signal, and gain adjustment is performed. It is supplied to the converter 104. The electrical signal supplied to the AD converter 104 is converted into digital video data here. The digital video data from the A-D converter 104 is supplied to the video signal processing circuit 105, subjected to the various correction processes described above, and then supplied to the error correction code adding circuit 151 and the video compression circuit 201, respectively.

  On the other hand, the sound collected by the microphone 106 is converted into an electric signal by the microphone 106 and then supplied to the A / D converter 108 via the preamplifier 107. In the A / D converter 108, the digital audio data is supplied. Is converted to The digital audio data from the A-D converter 108 is supplied to the audio signal processing circuit 109, subjected to various audio signal processing, and then supplied to the error correction code adding circuit 151 and the audio compression circuit 202, respectively.

  The digital video data and digital audio data supplied to the error correction code adding circuit 151 together with the subcode data from the system controller 120, which will be described later, together with the inner code error correction code and the outer code error in this error correction code adding circuit 151. After the correction code is added and converted into data in the product code format, the data is supplied to the channel coding circuit 152, where digital modulation processing is performed. The digital modulation signal from the channel coding circuit 152 is supplied to the magnetic head of the cassette compartment 154 through the recording amplification circuit 153.

  On the other hand, in the video compression circuit 201, the digital video data from the video signal processing circuit 105 is compressed. The compressed digital video data Vd is supplied to the system controller 120 via the input / output means 120d. In the audio compression circuit 202, the digital audio data from the audio signal processing circuit 109 is compressed. The compressed digital audio data Ad is supplied to the system controller 120 via the input / output means 120d. The compressed digital video data and compressed digital audio data supplied to the system controller 120 are written into the data area of the memory 120a by the read / write means 120b.

  Further, time code data from the time code generation circuit 149, reel ID data described later, blood pressure data from the blood pressure system 148, pulse data, and position data from the GPS 147 are supplied to the system controller 120 via the input / output means 120d. Is done. The reel ID data, blood pressure data, pulse data, and position data supplied to the system controller 120 are written into the subcode area of the memory 120a by the read / write means 120b. Further, the time code data is supplied to a fixed head (not shown) for recording time code data in the cassette compartment 154.

  When a certain amount of compressed digital video data and compressed digital audio data is stored in the memory 120a, the read / write unit 120b starts reading control for the memory 120a under the control of the control unit 120c. The compressed digital video data, compressed digital audio data, and subcode data read from the memory 120a are respectively supplied to an error correction code adding circuit 203. In the error correction code adding circuit 203, an outer code error correction code and an inner code are read. An error correction code is added and converted into product code format data. This product code format data is supplied to the IC card 252 via the IC card controller 251.

  In the operation state as described above, when the user operates the operation unit 112 to input a reel ID, the read / write circuit 120b is controlled by the input / output unit under the control of the information adding unit 120e. The reel ID data supplied via 120d is written in the subcode area of the memory 120a. The subcode data written in the subcode area is supplied to the IC card controller 251 and also to the error correction code adding circuit 151. Subsequently, when a user presses a recording key (not shown), the control means 120c of the system controller 120 supplies a control signal to the cassette compartment 154, and a capstan motor, a reel motor, and a drum motor (see FIG. (Not shown) is started. As a result, the magnetic tape of the set video tape cassette runs and the rotating drum rotates.

  As a result, the digital modulation signal from the recording amplification circuit 153 is supplied to the magnetic head and recorded so as to form an inclined track on the magnetic tape of the video tape cassette, and the time code data is received by the fixed head. Recorded on the magnetic tape of the video tape cassette to form a longitudinal track. Further, data from the error correction code adding circuit 203 is supplied to the IC card via the IC card controller 251 and recorded on the IC card.

  C. Explanation of control operation of camera-integrated VTR (Fig. 3)

  FIG. 3 is a flowchart for explaining the control operation of the camera-integrated VTR shown in FIG. 2, and the main body of the control operation described below is each means of the system controller 120 shown in FIG.

  In step S1, the control unit 120c shown in FIG. 2 determines whether or not reel ID data is input via the operation unit 112. If “YES”, the process proceeds to step S2.

  In step S2, the read / write means 120b shown in FIG. 2 writes the reel ID data supplied via the input / output means 120d in the subcode data storage area of the memory 120a.

  In step S3, the control unit 120c shown in FIG. 2 determines whether or not the recording key of the operation unit 112 is pressed. If “YES”, the process proceeds to step S3.

  In step S4, the control unit 120c shown in FIG. 2 supplies control signals to the camera unit 100, the first recording unit 150, the signal processing unit 200, and the second recording unit 250, respectively, and the operation of each unit described above. To start.

  In step S5, the control means 120c shown in FIG. 2 determines whether or not time code data is supplied. If “YES”, the process proceeds to step S6.

  In step S6, the time code data, blood pressure data, pulse data, position data, and camera are supplied to the read / write means 120b via the input / output means 120d under the control of the control means 120c shown in FIG. The additional data composed of the section adjustment data is written in the storage area of the subcode data in the memory 120a.

  In step S7, under the control of the control means 120c shown in FIG. 2, the read / write means 120b supplies the compressed digital video data and compressed digital audio data supplied via the input / output means 120d to the memory 120a. Write to the data area.

  In step S8, under the control of the control means 120c shown in FIG. 2, the read / write means 120b reads the compressed digital video data, compressed digital audio data, and additional data stored in the memory 120a. The control means 120c supplies the compressed digital video data, compressed digital audio data and additional data read from the memory 120a to the error correction code adding circuit 203 and the error correction code adding circuit 151 via the input / output means 120d, respectively. To do.

  As described above, the outer code error correction code and the inner code error correction code are added to the additional data supplied to the error correction code adding circuits 203 and 151, respectively, as subcode data.

  In step S9, the control means 120c shown in FIG. 2 determines whether or not the stop key of the operation unit 112 is pressed. If “YES”, the process ends. If “NO”, the process proceeds to step S5 again. To do.

  When the above processing is completed, compressed digital video data, compressed digital audio data, and subcode data are recorded on the IC card 252. On the magnetic tape of the video tape cassette, digital video data, digital audio data, Subcode data is recorded. The video tape cassette and the IC card on which the material is recorded are used in an offline editing system, which will be described next.

  D. Configuration of offline editing system and description of its operation (Fig. 4)

  FIG. 4 is a configuration diagram showing a configuration example of an offline editing system, and this offline editing system corresponds to the first editing system 400 shown in FIG. 1B.

[Connection and configuration]
The offline editing system shown in FIG. 4 has a bus 352 connected to the CPU 1, and the bus 352 stores the program data Da 1 and the edit list editor data Da 2 in the ROM 353, RAM 354, and compressed digital data to the television monitor 368. A video RAM 355a for displaying video data, a video RAM 355b for displaying an edit list converted into image data on the LCD 365, and an input / output port 356 are connected to the input / output port 356 via an interface circuit 357. 358, the decompression circuit 360 via the interface circuit 359, the floppy disk drive 362 via the interface circuit 361, the television monitor 368 via the output circuit 367, and the output circuit 367. Speaker 369 are respectively connected Te further configured is connected to the operation panel 364 having LCD365 and operation key group 366.

  Here, the RAM 354 is loaded with an edit list editor data stored in the ROM 353, that is, an editor for inputting each data of the edit list. Then, the edit list Da3 is generated by sequentially writing data in the storage area of the editor loaded in the RAM 354. In the RAM 354, a work area Ar1 and a buffer area Ar2 are set. The work area Ar1 is for work of the CPU 351, and the buffer area Ar2 is compressed digital video data, compressed digital audio data and subcode data read from the IC card 252, and decompressed by the decompression circuit 360. For buffering compressed digital video data and compressed digital audio data.

  In the drawing, blocks shown in the region indicated by the alternate long and short dash line indicate the most important functions among many functions of the CPU 351 after the power is turned on by the program data Da1 stored in the ROM 353.

This is a function for recognizing which key is pressed in the operation key group of the key input recognition means 370 operation panel 364.
* Read / Write Control Unit 371 This function reads data from the ROM 353, writes data to the RAM 354, reads data from the RAM 354, writes data to the video RAMs 355a and 355b, and reads data from the video RAMs 355a and 355b.
* File management means 372 A function for recording the edit list Da3 held in the RAM 354 as an edit list file on the floppy disk 363 set in the floppy disk drive 362 and the floppy disk 363. This function reads the edit list file.
* IC card driver 373 A function for recording data to the IC card 252 and reading data from the IC card 252.
* Decompression board driver 374 This is a function for making the data supplied to the decompression circuit 360 and the form of supply conform to the format of the decompression circuit 360.
* Information reading means 375 A function for extracting subcode data from data read from the IC card 252.
* The LCD control means 376 has a function of displaying the edit list Da3 as an image on the display surface of the LCD 365 by converting the edit list Da3 into image data.
* Instruction recognition unit 377 This function recognizes an instruction from the user based on the recognition result of the key input recognition unit 370.
* Based on the recognition result of the edit list generation means 378 key input recognition means 370, the control for registering in the edit list Da 3 on the RAM 354 as the data of the corresponding item of the edit list Da 3 is given to the read / write control means 371 This is a function to be performed.

[Operation]
The operation of the offline editing system shown in FIG. 4 will be described below. However, in the following description, the subject of the control operation will be described as the CPU 351. The description of the above-described means as the main control operation will be described in item E with reference to a flowchart.

  Compressed digital video data, compressed digital audio data, and subcode data recorded on the IC card 252 are sequentially supplied via the interface circuit 357, the input / output port 356, and the bus 352, respectively. The CPU 1 writes data read from the IC card 252 to the buffer area Ar2 of the RAM 354, and among the written data, only the compressed digital video data and the compressed digital audio data are transferred to the bus 352, the input / output port 356 and the interface circuit 359. Are respectively supplied to the decompression circuit 360. The CPU 1 writes the digital video data decompressed by the decompression circuit 360 into the video RAM 355a, the digital audio data into the RAM 354, and the digital video data written into the video RAM 355a into the bus 352. The digital audio data written in the RAM 354 is supplied to the television monitor 368 via the output port 356 and the output circuit 367, and supplied to the speaker 369 via the bus 354, the input / output port 356 and the output circuit 367, respectively. As a result, the compressed digital video data read from the IC card 252 is displayed as an image on the television monitor 36, and the compressed digital audio data read from the IC card 252 is output as sound from the speaker 369. Is done.

  On the other hand, the CPU 351 reads only the subcode data from the data held in the buffer area Ar2 of the RAM 354, converts the read subcode data into image data, and converts the image data obtained by the conversion into the video RAM 355b. Then, the image data written in the video RAM 355b is supplied to the LCD 365 via the bus 352 and the input / output port 356. Thereby, on the display surface of the LCD 365, subcode data such as time code data, blood pressure data, pulse data, position data, camera unit adjustment data, and reel ID data is displayed as an image.

  In the state as described above, when the user presses an in-point specifying key (not shown) or an out-point specifying key (not shown) of the operation key group 366, it is held in the buffer area Ar2 of the RAM 354 at the time of pressing. The time code data and the sub code data thus registered are registered in the edit list Da3 as time code data of the in point or the out point and sub code data.

  E. Explanation of operations in offline editing processing (FIGS. 5 to 8)

  5 to 8 are flowcharts for explaining the control operation in the offline editing system shown in FIG. 4 in more detail. In the following description, the main body of the control operation is each means shown in FIG.

  In step S11, the IC card driver 373 shown in FIG. 2 determines whether or not the IC card 252 is set in the IC card slot 358. If “YES”, the process proceeds to step S12.

  In step S12, the file management means 372 shown in FIG. 2 determines whether or not the floppy disk 363 is set in the floppy disk drive 362. If “YES”, the process proceeds to step S13.

  In step S13, the read / write control unit 371 shown in FIG. 2 reads the edit list editor data Da2 from the ROM 353 under the control of the edit list generation unit 378.

  In step S14, the read / write control means 371 shown in FIG. 2 writes the read edit list editor data Da2 into the RAM 354.

  In step S15, the IC card driver 373 shown in FIG. 2 reads data recorded on the IC card 252 under the control of the information reading means 375. Data read from the IC card 252 is supplied to the RAM 354 via the interface circuit 357, the input / output port 356, and the bus 352. At this time, the read / write control unit 371 supplies a write control signal to the RAM 354. As a result, the data read from the IC card 252 is written into the RAM 354.

  In step S16, the read / write control unit 371 shown in FIG. 2 reads the reel ID data from the data stored in the RAM 354 under the control of the information reading unit 375, and edits the read reel ID data. The data is supplied to the list generation unit 378. The edit list generation unit 378 supplies reel ID data to the RAM 354. Subsequently, the read / write control unit 371 supplies a write control signal to the RAM 354 under the control of the edit list generation unit 378. As a result, the reel ID data is registered in the edit list Da3 of the RAM 354.

  In step S17, the read / write control unit 371 shown in FIG. 2 reads the edit list data Da3 stored in the RAM 354 under the control of the LCD control unit 376. The edit list data Da3 read from the RAM 354 is supplied to the LCD control means 376 via the bus 352. The LCD control means 376 converts the edit list data Da3 into image data and supplies the converted image data to the video RAM 355b. At this time, the read / write control unit 371 supplies a write control signal to the video RAM 355b under the control of the LCD control unit 376. As a result, the image data of the edit list data Da3 from the LCD control means 376 is written into the video RAM 355b.

  In step S18, the read / write control unit 371 shown in FIG. 2 supplies a read control signal to the video RAM 355b under the control of the LCD control unit 376. As a result, the image data of the edit list data Da3 stored in the video RAM 355b is supplied to the LCD 365 via the bus 352 and the input / output port 356, and is displayed as an image of the edit list on the display surface of the LCD 365. The

  In step S 19, the key input recognition unit 370 shown in FIG. 2 supplies the key input recognition result to the instruction recognition unit 377. The instruction recognizing unit 377 determines whether or not the reproduction start is instructed based on the recognition result from the key input recognizing unit 370. If “YES”, the process proceeds to step S20 in the flowchart shown in FIG.

  In step S20, the IC card driver 373 supplies a control signal indicating reading to the IC card 252 via the bus 352, the input / output port 356 and the interface circuit 357 in accordance with the instruction of the instruction recognition unit 377 shown in FIG. To do. As a result, the recording data is read from the IC card 252. The read recording data is supplied to the RAM 354 via the interface circuit 357, the input / output port 356, and the bus 352.

  In step S 21, the read / write control unit 371 shown in FIG. 2 supplies a write control signal to the RAM 354 under the control of the IC card driver 373. Thereby, the data read from the IC card 252 is stored in the buffer area Ar2 of the RAM 354.

  In step S22, the read / write control unit 371 shown in FIG. 2 reads the subcode data stored in the RAM 354 under the control of the information reading unit 375, and the read subcode data is stored in the work area of the RAM 354. Write to Ar1.

  In step S23, the read / write control unit 371 reads the buffered compressed digital video data and compressed digital audio data from the buffer area Ar2 of the RAM 354 under the control of the decompression board driver 374 shown in FIG. . The compressed digital video data and the compressed digital audio data read from the RAM 354 are supplied to the decompression circuit 360 via the bus 352, the input / output port 356 and the interface circuit 359. The decompression circuit 360 causes the original digital video data to be read. And restored to digital audio data. The digital video data and digital audio data restored by the decompression circuit 36 are supplied to the RAM 354 via the interface circuit 359, the input / output port 356 and the bus 352.

  In step S 24, the read / write control unit 371 shown in FIG. 2 supplies a write control signal to the RAM 354 under the control of the decompression board driver 374. As a result, the restored digital video and audio data is stored in the buffer area Ar2 of the RAM 354.

  In step S25, the read / write control means 371 shown in FIG. 2 writes the digital video data stored in the buffer area Ar2 of the RAM 354 into the video RAM 355a.

  In step S26, the read / write control unit 371 shown in FIG. 2 performs time code data and additional data in the subcode data stored in the work area Ar1 of the RAM 354 under the control of the LCD control unit 376. Read each one. The time code data and additional data read from the RAM 354 are supplied to the LCD control means 376. The LCD control means 376 converts the time code data and the additional data into image data, and supplies the image data to the video RAM 355b. At this time, the read / write control unit 371 supplies a write control signal to the video RAM 355b under the control of the LCD control unit 376. As a result, the image data is stored in the video RAM 355b.

  In step S27, the read / write control means 371 shown in FIG. 2 reads the digital video data stored in the video RAM 355a and the digital audio data stored in the buffer area Ar2 of the RAM 354. Digital video data and digital audio data are supplied to the output circuit 367 via the bus 352 and the input / output port 356. The digital video data is supplied to the television monitor 368 by the output circuit 367 and displayed as an image on the television monitor 368. Further, the digital audio data is supplied to the speaker 369 by the output circuit 367 and is output from the speaker 369 as audio. On the other hand, the read / write control means 371 shown in FIG. 2 reads the image data stored in the video RAM 355b. The image data read from the video RAM 355b is supplied to the LCD 365 via the bus 352 and the input / output port 356, and is displayed as an image of a time code and additional data.

  In step S28, based on the recognition result from the key input recognizing unit 370 shown in FIG. 2, the instruction recognizing unit 377 determines whether or not the IN point is designated. If “YES”, the process proceeds to step S29. If "NO", the process proceeds to step S24 again.

  In step S29, the read / write control unit 371 shown in FIG. 2 stores the time code data and additional data stored in the work area Ar2 of the RAM 354 in the RAM 354 under the control of the edit list generation unit 378. Is written in the corresponding area of the edit list Da3.

  In step S30 of the flowchart shown in FIG. 7, the read / write control unit 371 reads the time code data and additional data registered in the edit list Da3 of the RAM 354 under the control of the LCD control unit 376. The read time code data and additional data are supplied to the LCD control means 376. The LCD control means 376 converts the time code data and the additional data into image data, and supplies the image data to the video RAM 355b. At this time, the read / write control unit 371 supplies a write control signal to the RAM 354 under the control of the LCD control unit 376. This write control signal includes an address indicating the storage area corresponding to the image data of each item of the image data of the edit list stored in the RAM 354.

  In step S31, the read / write control unit 371 shown in FIG. 2 supplies a read control signal to the video RAM 355b under the control of the LCD control unit 376. As a result, the image data read from the video RAM 355b is supplied to the LCD 365 via the bus 352 and the input / output port 356, and is displayed as an image on the display surface of the LCD 365. At this time, the in-point time code and additional data designated by the user are displayed as images in the displayed edit list.

  In step S32, the read / write control means 371 reads the buffered compressed digital video data and compressed digital audio data from the buffer area Ar2 of the RAM 354 under the control of the decompression board driver 374 shown in FIG. . The compressed digital video data and the compressed digital audio data read from the RAM 354 are supplied to the decompression circuit 360 via the bus 352, the input / output port 356 and the interface circuit 359. The decompression circuit 360 causes the original digital video data to be read. And restored to digital audio data. The digital video data and digital audio data restored by the decompression circuit 36 are supplied to the RAM 354 via the interface circuit 359, the input / output port 356 and the bus 352.

  In step S 33, the read / write control unit 371 shown in FIG. 2 supplies a write control signal to the RAM 354 under the control of the decompression board driver 374. As a result, the restored digital video and audio data is stored in the buffer area Ar2 of the RAM 354.

  In step S34, the read / write control means 371 shown in FIG. 2 writes the digital video data stored in the buffer area Ar2 of the RAM 354 into the video RAM 355a.

  In step S35, the read / write control means 371 shown in FIG. 2 controls the time code data and additional data in the subcode data stored in the work area Ar1 of the RAM 354 under the control of the LCD control means 376. Read each one. The time code data and additional data read from the RAM 354 are supplied to the LCD control means 376. The LCD control means 376 converts the time code data and the additional data into image data, and supplies the image data to the video RAM 355b. At this time, the read / write control unit 371 supplies a write control signal to the video RAM 355b under the control of the LCD control unit 376. As a result, the image data is stored in the video RAM 355b.

  In step S36, the read / write control means 371 shown in FIG. 2 reads the digital video data stored in the video RAM 355a and the digital audio data stored in the buffer area Ar2 of the RAM 354. Digital video data and digital audio data are supplied to the output circuit 367 via the bus 352 and the input / output port 356. The digital video data is supplied to the television monitor 368 by the output circuit 367 and displayed as an image on the television monitor 368. Further, the digital audio data is supplied to the speaker 369 by the output circuit 367 and is output from the speaker 369 as audio. On the other hand, the read / write control means 371 shown in FIG. 2 reads the image data stored in the video RAM 355b. The image data read from the video RAM 355b is supplied to the LCD 365 via the bus 352 and the input / output port 356, and is displayed as an image of a time code and additional data.

  In step S37, based on the recognition result from the key input recognizing unit 370 shown in FIG. 2, the instruction recognizing unit 377 determines whether or not the out point is designated. If “YES”, the process proceeds to step S38. If "NO", the process proceeds to step S32 again.

  In step S38, the read / write control unit 371 shown in FIG. 2 stores the time code data and additional data stored in the work area Ar2 of the RAM 354 in the RAM 354 under the control of the edit list generation unit 378. Is written in the corresponding area of the edit list Da3.

  In step S39, the read / write control unit 371 reads the time code data and additional data registered in the edit list Da3 of the RAM 354 under the control of the LCD control unit 376. The read time code data and additional data are supplied to the LCD control means 376. The LCD control means 376 converts the time code data and the additional data into image data, and supplies the image data to the video RAM 355b. At this time, the read / write control unit 371 supplies a write control signal to the RAM 354 under the control of the LCD control unit 376. This write control signal includes an address indicating the storage area corresponding to the image data of each item of the image data of the edit list stored in the RAM 354.

  In step S40, the read / write control means 371 shown in FIG. 2 supplies a read control signal to the video RAM 355b under the control of the LCD control means 376. As a result, the image data read from the video RAM 355b is supplied to the LCD 365 via the bus 352 and the input / output port 356, and is displayed as an image on the display surface of the LCD 365. At this time, the in-point time code and additional data designated by the user are displayed as images in the displayed edit list.

  In step S41, based on the recognition result from the key input recognizing means 370 shown in FIG. 2, the instruction recognizing means 377 determines whether or not the end of the process is instructed. If “YES”, the process proceeds to step S42. If "NO", the process again proceeds to step S23 of the flowchart shown in FIG.

  In step S42, the read / write control unit 371 shown in FIG. 2 reads the edit list data Da3 stored in the RAM 354 under the control of the file management unit 372. The edit list data Da3 read from the RAM 354 is supplied to the file management means 372 via the bus 352. The file management means 372 generates file name data of the edit list data Da3, and the file name data and the edit list data Da3 are sent to the floppy disk drive 362 via the bus 352, the input / output port 356 and the interface circuit 361. To supply. The floppy disk drive 362 records file name data in the index area of the floppy disk 363 and records edit list data Da3 in the data recording area of the floppy disk 363.

  Through the above processing, edit list data Da3 consisting of reel ID data and time code data of in and out points is recorded on the floppy disk 363 as one file. The floppy disk 363 in which the edit list data Da3 is recorded is used in an on-line editing system described below together with a video tape cassette used in a camera-integrated VTR.

  F. Configuration and operation of online editing system (Fig. 9)

  FIG. 9 is a block diagram showing an example of the configuration of an online editing system. This online editing system corresponds to the second editing system 550 shown in FIG. 1C.

[Connection and configuration]
The online editing system shown in FIG. 9 includes a playback device 500 for playing back video tape cassettes recorded with the camera-integrated VTR shown in FIG. 2 based on an edit list, and the playback device. A master VTR 505 for recording video and audio data reproduced in 500 on, for example, a video tape cassette for transmission, and an editing machine 450 for controlling the reproduction apparatus 500 and the master VTR 505, respectively. Here, the reproducing apparatus 500 is composed of a cassette auto changer.

  The playback apparatus 500 includes a shelf device 501 for holding video tape cassettes 501-1 to 501-n and the like recorded with a camera-integrated VTR, and a video tape held on the shelf device 501.・ The cassettes 501-1 to 501-n are taken out and the video tapes are taken out. The cassettes 501-1 to 501-n are set in the VTRs 503-1 to 503-n, and the videos are ejected from the VTRs 503-1 to 503-n. A transport device 502, VTRs 503-1 to 503-n, and VTRs 503-1 to 503-n for setting the tape cassettes 501-1 to 501-n on the shelf device 501 based on a control signal from the controller 506 A selector 504 for selectively outputting the playback video and audio signals from the controller 506 according to a control signal; Feeding device 502, and a controller 506 which respectively control the VTR503-1~503-n and the selector 504. Here, the controller 506 has a memory 507 therein. The memory 507 is a table including shelf number data of each shelf of the shelf device 502 and reel ID data.

  This table is generated by the following processing, for example. When the video tape cassettes 501-1 to 501-n are set in the shelf device 502, the controller 506 controls the transport device 502 so that the video / video cassettes set in the shelf device 502 are controlled. The tape cassettes 501-1 to 501-n are taken out, and the taken out video tape cassettes 501-1 to 501-n are set in the VTRs 503-1 to 503-n. Next, the controller 506 controls the VTRs 503-1 to 503-n to put the VTRs 503-to 503-n in a playback state and reads the reel ID data in the playback video and audio signals. Then, the read reel ID data and the shelf number data of the shelf of the shelf device 501 are associated with each other and stored in the memory 507.

  Next, an internal configuration example of the editing machine 450 will be described. In the editing machine 450, a bus 452 is connected to a CPU 451, and a ROM 453 storing work program data for editing, a work RAM 454, and an input / output port 455 are connected to the bus 452, and the input / output port 455 is further connected. Further, a floppy disk drive 457 is connected through an interface circuit 456, and an operation panel 458 having an LCD 459 and an operation key group 460 is connected.

In the figure, each block shown within a broken line is a function of the CPU 451.
* Input information discrimination means 470 This function discriminates the content of an instruction by pressing the operation key group 470.
* Read / write control means 471 A function for supplying a read control signal to the ROM 453 and a read / write control signal for the RAM 454.
* Display control means 472 This function converts text data or the like into image data and displays it on the LCD 459.
* File management means 473 A function for recording file data on the floppy disk 363 and reading file data recorded on the floppy disk 363.
* Time code reading means 474 This function reads the time code data from the playback device 500.
* Control of playback, stop, rewind, fast forward, etc. for each VTR 503-1 to 503-n of VTR control means 475 playback device 500, and set video tape cassette to be edited to VTR 503-1 to 503-n For this purpose, the reel ID data is transferred and the master VTR 505 is controlled such as playback, stop, rewind, and fast forward.
* Calculation means 476 This is a function for obtaining the difference between the time code data of the IN point and OUT point registered in the edit list and the time code data supplied from the playback device 500.
* Judgment means 477 Discrimination of specific instruction contents, judgment of whether or not the editing point is based on the difference obtained by calculation means 466, judgment of loading of floppy disk 363, judgment of whether or not there is the next editing material It is a function.
* This is a function for performing control for changing the content of the corresponding data of the edit list data Da3 stored in the RAM 454 based on the operation content of the edit list editing means 478 operation key group 460.

[Operation]
In the following description of the operation, the functional blocks 470 to 477 are excluded for convenience of explanation. The operation description with the functional blocks 470 to 477 as the main control operation will be described in more detail in the next item G with reference to a flowchart.

  When the floppy disk 363 is set in the floppy disk drive 457, the edit list data Da3 recorded as a file is read from the floppy disk 363 under the control of the CPU 451. The read edit list data Da3 is stored in the RAM 454 via the interface circuit 456, the input / output port 455, and the bus 452.

  On the other hand, the controller 506 of the playback apparatus 500 holds a table made up of reel ID data and shelf number data on the memory 507 as already described.

  The CPU 451 reads the data of the edit list data Da3 stored in the RAM 454, that is, reel ID data and time code data of the IN point and OUT point in units of material. Then, the reel ID data is supplied to the controller 506. When the reel ID data is supplied from the editing machine 450, the controller 506 searches the table in the memory 507 for shelf number data corresponding to the reel ID data. Then, by controlling the transport device 502 based on the shelf number data, the video tape cassettes 501-1 to 501-n set on the shelf of the shelf device 501 indicated by the shelf number data are taken out, Next, the VTRs 503-1 to 503-n are loaded. Then, the controller 506 supplies a selection control signal to the selector 504 so that the outputs of the VTRs 503-1 to 503-n loaded in the video tape cassettes 501-1 to 501-n are selected by the selector 504. To be. Subsequently, the controller 506 puts the VTRs 503-1 to 503-n loaded with the video tape cassettes 501-1 to 501-n into a playback state for a predetermined time (several seconds).

  When the VTRs 503-1 to 503-n are in the playback state, the playback video and audio data from the VTRs 503-1 to 503-n are supplied to the editing machine 450 via the selector 504 and the controller 506. The editor 450 extracts time code data from the reproduction data, and obtains a difference between the time code data and the in-point time code data of the material currently being processed. Based on the difference, a control signal indicating rewinding or fast-forwarding is supplied to the controller 506. When this control signal is supplied to the controller 506, the controller 506 puts the VTRs 503-1 to 503-n into a fast-forward or rewind state. During this time, reproduction data is supplied to the editing machine 450 as described above. The editor 450 supplies a control signal indicating a stop to the controller 506 when the extracted time code data becomes the time code data before the pre-roll period from the IN point time code data. As a result, the controller 506 puts the VTRs 503-1 to 503-n into a stopped state.

  Subsequently, the editing machine 450 supplies a control signal indicating reproduction to the controller 506. As a result, the controller 506 puts the VTRs 503-1 to 503-n into a playback state. At the same time, the editing machine 505 puts the master VTR 505 in a recording pause state.

  When the time code data extracted from the reproduction data from the controller 506 matches the in-point time code data, the editing machine 450 controls the master VTR 505 to cancel the recording pause state of the master VTR 505. . As a result, the playback video and audio data from the playback device 500 are recorded on the magnetic tape of the video tape cassette set in the master VTR 505.

  The editing machine 450 continues to determine whether or not the time code data extracted from the reproduction data from the controller 506 matches the out-point time code data, and controls the master VTR 505 when they match. Then, the master VTR 505 is brought into a recording pause state and a control signal indicating the stop is supplied to the controller 506. As a result, the controller 506 stops the reproduction of the VTRs 305-1 to 503-n.

  Then, the CPU 451 of the editing machine 450 reads data corresponding to the next material from the edit list and performs the same processing as described above. By performing the above processing on all the materials registered in the edit list data Da3, the video tape cassette set in the master VTR 505 has video and audio recorded by the camera-integrated VTR. Of the data, only the necessary material specified by the offline editing system is recorded.

  The reproduction is performed based on the edit list data Da3, and the reproduced video and audio data are monitored. Based on the result, the operator can edit the contents of the edit list data Da3 on the RAM 454 by operating the operation key group 460. It is also possible to perform the reproduction based on the changed edit list data Da3 and record the reproduction data on the video tape cassette set in the master VTR 505.

  G. Explanation of operation in online editing process (FIGS. 10 and 11)

  10 and 11 are flowcharts for explaining the control operation in the online editing system shown in FIG. Hereinafter, the case where the edit list data Da3 is used as it is without changing the contents will be described.

  In step S50, the determination means 477 shown in FIG. 9 determines whether or not the floppy disk 363 is set in the floppy disk drive 457. If “YES”, the process proceeds to step S51.

  In step S51, the file management unit 473 shown in FIG. 9 instructs the floppy disk drive 457 to read the edit list data Da3. As a result, the floppy disk drive 457 reads the edit list data Da3 from the floppy disk 363. The edit list data Da3 read from the floppy disk 363 is supplied to the RAM 454 via the floppy disk drive 457, the interface circuit 456, the input / output port 455, and the bus 452, and at this time, the read / write control is performed. The data is written into the RAM 454 by a write control signal given from the means 471 to the RAM 461.

  In step S52, the read / write control means 471 shown in FIG. 2 supplies a read control signal to the RAM 454 under the control of the display control means 472, and reads the edit list data Da3 stored in the RAM 454. . The edit list data Da3 read from the RAM 454 is supplied to the display control means 472 via the bus 452. The display control means 472 converts the edit list data Da3 from the RAM 454 into image data, and supplies the image data to the LCD 459 via the bus 452 and the input / output port 455. Thus, edit list data is displayed as an image on the display surface of LCD 459.

  In step S <b> 53, the input information determination unit 470 shown in FIG. 2 determines the operation content of the operation key group 460 and supplies the determination result to the determination unit 477. Based on the determination result, the determination unit 477 determines whether or not an instruction to start editing has been issued. If “YES”, the process proceeds to step S54, and if “NO”, the process proceeds to step S55.

  In step S54, the read / write control unit 471 shown in FIG. 2 controls the data corresponding to the material to be processed in the edit list data Da3 stored in the RAM 454 under the control of the VTR control unit 474, that is, The reel ID data and the time code data of the IN point and OUT point are read out, and these read out data are written in the work area of the RAM 454.

  In step S55, the input information determination unit 470 shown in FIG. 2 generates corresponding data by pressing the operation key group 460 and supplies the data to the RAM 454. At this time, the read / write control unit 471 supplies a write control signal to the RAM 454 under the control of the edit list editing unit 478. As a result, the data corresponding to the edit list data Da3 is overwritten by the newly input data. It is assumed that when editing the edit list data Da3, the operator has already confirmed the corrected portion by pressing a reproduction key in the operation key group 460.

  In step S56, the read / write control unit 471 shown in FIG. 2 controls the corresponding data of the material to be processed in the edit list data Da3 stored in the work area of the RAM 454 under the control of the VTR control unit 475. Of these, the reel ID data is read out. The reel ID data read from the work area of the RAM 454 is supplied to the controller 506 via the bus 452 and the input / output port 455.

  As already described, the controller 506 holds a table made up of reel ID data and shelf number data in the memory 507. Therefore, the shelf number data stored in the memory 507 in a pair with the same reel ID data as the reel ID data from the editing machine 450 can be recognized. When the controller 506 recognizes the shelf number data, based on the recognition, the controller 506 takes out the video tape recorder from the shelf corresponding to the shelf number data, and loads it into the VTRs 503-1 to 503-n. A control signal indicating that this is supplied. As a result, the transport device 502 is set on the shelf of the shelf device 502 that matches the shelf number data among the video tape cassettes 501-1 to 501-n respectively stored in the shelf of the shelf device 501. The existing video tape cassettes 501-1 to 501-n are taken out, and the taken video tape cassettes 501-1 to 501-n are loaded into the VTRs 503-1 to 503-n.

  In step S <b> 507, the changer controller 475 illustrated in FIG. 2 supplies a control signal indicating reproduction to the controller 506. The controller 506 supplies a selection control signal to the selector 504, whereby the outputs of the VTRs 503-1 to 503-n loaded in the video tape cassettes 501-1 to 501-n are selected in the selector 504. Like that. Subsequently, the controller 506 puts the VTRs 503-1 to 503-n loaded with the video tape cassettes 501-1 to 501-n into a playback state for a predetermined time (several seconds).

  When the VTRs 503-1 to 503-n are in the playback state, the playback video and audio data from the VTRs 503-1 to 503-n are time code reading means via the selector 504, the controller 506, the input / output port 455 and the bus 452. 474. The time code reading unit 474 supplies the read time code data to the calculation unit 476. At the same time, the read / write control unit 471 reads out the time code data of the IN point and OUT point stored in the work area of the RAM 454 under the control of the calculation unit 476. The in-point and out-point time code data read from the RAM 454 is supplied to the calculation means 476. The calculation means 476 subtracts the time code data from the time code reading means 474 from the time code data at the IN point, and supplies the subtraction result to the determination means 477.

  The determination unit 477 determines whether the subtraction result from the calculation unit is positive, and supplies data indicating fast-forwarding to the VTR control unit 475 if positive, and data indicating rewinding if negative. The VTR control unit 475 supplies a control signal indicating fast forward or rewind to the controller 506 based on the data supplied from the determination unit 477. As a result, the controller 506 supplies a control signal indicating fast forward or rewind to the VTRs 503-1 to 503-n in which the video tape cassettes 501-1 to 501-n are loaded. 503-n is set to the fast forward or rewind operation state.

  The reproduction data from the VTs 503-1 to 503-n is supplied to the time code reading unit 474 via the controller 506, the input / output port 455 and the bus 452. The time code reading unit 474 extracts time code data from the reproduction data, and supplies the extracted time code data to the calculation unit 476. The calculating means 476 subtracts the time code data from the time code reading means 474 from the IN point time code data, and supplies the subtraction result to the judging means 477. The determination unit 477 determines whether or not the subtraction result is negative and the difference from the pre-roll time is a predetermined time, and supplies the determination result to the VTR control unit 475. The VTR control unit 475 supplies a control signal indicating stop to the controller 506 based on the determination result from the determination unit 477.

  As a result, the controller 506 supplies a control signal indicating stop to the VTRs 503-1 to 503-n, and puts the VTRs 503-1 to 503-n into a stop state. Subsequently, the changer controller 475 supplies a control signal indicating reproduction to the controller 506. As a result, the controller 506 supplies a control signal indicating reproduction to the VTRs 503-1 to 503-n, and puts the VTRs 503-1 to 503-n into a reproduction state. When the VTRs 503-1 to 503-n are in a playback state, playback data is supplied to the time code reading unit 474 via the controller 506, the input / output port 455 and the bus 452.

  In step S58, the VTR control means 475 shown in FIG. 2 supplies a control signal indicating a recording pause state to the master VTR 505. As a result, the master VTR 505 enters a recording pause state.

  In step S59, the time code reading means 474 shown in FIG. 2 extracts time code data from the reproduction data from the controller 506, and supplies the extracted time code data to the calculating means 475. The calculation means 475 subtracts the time code data from the time code reading means 474 from the IN point time code data, and supplies the subtraction result to the determination means 477.

  In step S60, the determination unit 476 shown in FIG. 2 determines whether or not the subtraction result from the calculation unit 476 is a value indicating one frame before the In point. If “YES”, the determination unit 476 determines in step S61. Migrate to

  In step S61, the VTR control means 475 shown in FIG. 2 supplies a control signal indicating the start of recording to the master VTR 505. As a result, the master VTR 505 starts recording.

  In step S <b> 62, the VTR control unit 475 illustrated in FIG. 2 supplies a control signal indicating that the controller 506 performs output from the selector 504. As a result, the controller 506 supplies a control signal to the selector 504 to output the reproduction data from the VTRs 503-1 to 503-n. The reproduction data output from the selector 504 is supplied to the master VTR 505 and recorded so as to form an inclined track on the magnetic tape of the video tape cassette set in the master VTR 505.

  In step S 63, the time code reading unit 474 shown in FIG. 2 extracts time code data from the reproduction data from the controller 506, and supplies the extracted time code data to the calculation unit 475. The calculation means 475 subtracts the time code data from the time code reading means 474 from the out-point time code data, and supplies the subtraction result to the determination means 477. The determination unit 476 determines whether or not the subtraction result from the calculation unit 476 is a value indicating an out point. If “YES”, the flow proceeds to step S64.

  In step S64, the VTR control means 475 shown in FIG. 2 supplies a control signal indicating recording pause to the master VTR 505. As a result, the master VTR 505 enters a recording pause state.

  In step S65, the read / write control unit 471 shown in FIG. 2 controls the data corresponding to the material that has been processed at the present time out of the edit list data Da3 stored in the RAM 454 under the control of the determination unit 477. Read the next data. The data read from the RAM 454 is supplied to the determination unit 477 via the bus 452. The determination unit 477 determines whether or not the data from the RAM 454 is registration data of the edit list data Da3. If “YES”, the process proceeds to step S57 in the flowchart shown in FIG. If so, the process proceeds to step S66. If there is no next material, no data is written in the RAM 454. For example, all are “0” or “1”, and can be easily discriminated.

  In step S 66, the input information determination unit 470 shown in FIG. 2 determines the operation content of the operation key group 460 and supplies the determination result to the determination unit 477. Based on the determination result, the determination unit 477 determines whether or not the end of the editing process has been instructed. If “YES”, the determination unit 477 ends, and if “NO”, the step of the flowchart shown in FIG. The process proceeds to S50.

  By performing the above processing for all the materials registered in the edit list data Da3, only desired materials can be recorded on the magnetic tape of the video tape cassette set in the master VTR 505. it can.

[Modification]
Note that a value indicating the number of editing materials is held as a flag, and every time one material is processed, “1” is subtracted, and the next material is determined depending on whether or not the subtraction result is “0”. It may be determined whether or not there is.

[Modification]
In the above example, the case where the master VTR 505 is used has been described. In that case, a transmission device or the like is connected to the output terminal of the selector 504 instead of the master VTR 505.

[Effect in the embodiment]
As described above, in the present embodiment, when recording is performed with a camera-integrated VTR, the video image and audio signal are recorded on the video tape cassette without compression, and the IC card 252 The captured video and audio signals are compressed and recorded, and at that time, the blood pressure data and pulse data from the sphygmomanometer 148 and the position data from the GPS 147 are also recorded in the subcode area of each signal.

  Next, in the editing system for offline use, reference is made to the compressed video and audio signals recorded on the IC card 252, the blood pressure data, the pulse data, and the position data, and the in point and the out point are determined to determine the material. The edit list data Da3 is generated, and the edit list data Da3 is recorded on the floppy disk 363.

  Next, in the editing system for online use, the edit list data Da3 is read from the floppy disk 363, the contents thereof are changed as necessary, and the material is processed by the camera-integrated VTR based on the changed edit list data Da3. Are automatically reproduced as necessary, and the reproduced data is recorded or sent out.

  Therefore, compared with the case where the tape-like recording medium is used from the beginning to the end of the editing process, it is possible to greatly improve the editing efficiency especially during editing in which the in point and the out point are designated, and the blood pressure data, Since editing can be performed with reference to additional data such as pulse data and position data, it is possible to obtain an editing result more in line with the photographer's intention. For example, rather than deciding an edit point while looking at the image displayed on the monitor, it is possible to edit more according to the photographer's intention if the point where the photographer's blood pressure or pulse is increased is used as the edit point. There is. For example, if a photographer captures a precious creature for a moment, searching for the image of that moment on the magnetic tape of a video tape cassette is time consuming and sometimes overlooked. In such a case, since there is a high possibility that the blood pressure and the pulse will rise, if the position where the blood pressure and the pulse are raised is searched, the most valuable part can be searched in a short time.

It is explanatory drawing for demonstrating the outline | summary of this invention. It is a block diagram of a camera-integrated VTR showing an embodiment of the present invention. 3 is a flowchart for explaining a control operation in the camera-integrated VTR shown in FIG. 2. It is a block diagram of the edit system for offline which shows embodiment of this invention. 5 is a flowchart for explaining a control operation in the offline editing system shown in FIG. 4. 5 is a flowchart for explaining a control operation in the offline editing system shown in FIG. 4. 5 is a flowchart for explaining a control operation in the offline editing system shown in FIG. 4. 5 is a flowchart for explaining a control operation in the offline editing system shown in FIG. 4. It is a block diagram of the edit system for online which shows embodiment of this invention. 10 is a flowchart for explaining a control operation in the online editing system shown in FIG. 9. 10 is a flowchart for explaining a control operation in the online editing system shown in FIG. 9.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 100 ... Camera part, 101 ... Optical system, 102 ... CCD, 103, 104 ... Preamplifier, 104, 108 ... AD converter, 105 ... Video signal processing circuit, 106 ... Microphone, 109 ... Audio signal processing circuit, 110 ... operation panel, 111 ... LCD, 112 ... operation unit, 120 ... system controller, 120 ... a memory, 120 ... b read / write means, 120 ... c control means, 120 ... d input / output means, 120 ... e information adding means, 147 ... GPS, 148 ... blood pressure monitor, 149 ... time code generating circuit, 150 ... first recording unit, 151 ... error correction code Additional circuit, 152 ... Channel coding circuit, 153 ... Recording amplification circuit, 154 ... Cassette compartment, 160 ... Tape Recording medium 200... Signal processing unit 201... Video compression circuit 202. Audio compression circuit 203 203 Error correction code addition circuit 250 Second recording unit 251 IC card controller 252 IC card, 253 IC card slot, 260 Non-tape recording medium, 300 Camera-integrated VTR, 350 Editor, 351 CPU, 352 Bus, 353 ROM Da1 ... Program data, Da2 ... Edit list data, 354 ... RAM, Da3 ... Edit list, 355a, 355b ... Video RAM, 356 ... I / O port, 357, 359, 361 ... Interface circuit, 358 IC card slot, 360 Expansion board, 362 Floppy disk drive, 63 ... floppy disk, 364 ... operation panel, 365 ... LCD, 366 ... operation key group, 367 ... output circuit, 368 ... television monitor, 370 ... key input recognition means, 371 ... read out / Write control means, 372... File management means, 373... IC card driver, 374... Expansion board driver, 375... Information reading means, 376... LCD control means, 377. Edit list generation means, 400 ... 1st editing system, 450 ... Editing machine, 451 ... CPU, 452 ... Bus, 453 ... ROM, 454 ... RAM, 455 ... I / O port, 456 ... Interface circuit, 457 ... floppy disk drive, 458 ... operation panel, 458 ... LCD, 460 ... operation key group, 460 ... input information discrimination means, 461 ... read / write control means, 462 ... display control means, 463 ... file management means, 464 ... time code reading means, 465 ... VTR Control means, 466... Calculation means, 467... Judgment means, 500... Playback device, 501-1 to 501-n .. Video tape cassette, 501 .. Shelf device, 502. -1 to 503-n VTR, 504 Selector, 505 Master VTR, 506 Controller, 507 Memory, 550 Second editing system, 600 Recording medium

Claims (6)

In an editing method for editing a video signal,
Recording a source video signal on a first recording medium and recording a compressed video signal obtained by compressing the source video signal on a second recording medium;
Generating an edit list for editing the source video signal using the compressed video signal recorded on the second recording medium;
Editing the source video signal based on the edit list;
An editing method characterized by comprising: In an editing device for editing video signals,
Means for recording a source video signal on a first recording medium and recording a compressed video signal obtained by compressing the source video signal on a second recording medium;
Means for generating an edit list for editing the source video signal using the compressed video signal recorded on the second recording medium;
Means for editing the source video signal based on the edit list;
An editing device characterized by comprising: In an editing method for editing a video signal,
Receiving a compressed video signal obtained by compressing the source video signal;
Storing the compressed video signal in a non-tape recording medium;
Generating an edit list for editing the source video signal using the compressed video signal;
An editing method characterized by comprising: In an editing device for editing video signals,
Means for receiving a compressed video signal obtained by compressing the source video signal;
Means for storing the compressed video signal in a non-tape recording medium;
Means for generating an edit list for editing the source video signal using the compressed video signal;
An editing device characterized by comprising: In an editing method for editing a video signal,
Receiving a source video signal;
Receiving an edit list generated using a compressed video signal obtained by compressing the source video signal;
Editing the source video signal using the edit list;
Storing the compressed video signal in a non-tape recording medium;
Generating an edit list for editing the source video signal using the compressed video signal;
An editing method characterized by comprising: In an editing device for editing video signals,
Means for receiving a source video signal;
Means for receiving an edit list generated using a compressed video signal obtained by compressing the source video signal;
Means for editing the source video signal using the edit list;
Means for storing the compressed video signal in a non-tape recording medium;
Means for generating an edit list for editing the source video signal using the compressed video signal;
An editing device characterized by comprising:

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