JPH0963255A - Photographing device, digest video forming device, video editing device and video reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a photographing device without a brake in a recording video even when exchange of a video tape cassette and a time lag until becoming a video recordable state exist. SOLUTION: A video signal photographed by a camera is stored temporarily in a disk in a disk like video sending buffer part 1 to be outputted from the disk to a video cassette recorder 2. The video signal outputted to the video cassette recorder 2 is recorded on the video cassette tape 3 at a double recording speed. Then, the margin exchanging the video tape cassette occurs unless the disk is filled with the video signal. Then, the matter that the video isn't photographed while the video tape cassette is loaded and when it is exchanged in the condition such as news program materials gathering is prevented. Further, the photographing of a long time is performed without a brake. Thus, the necessity that the same photographing systems are doubled is eliminated, and the operability of the materials gathering photographing is remarkably improved also.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a photographing device, a digest image creating device, a video editing device, and a video reproducing device which use a video tape cassette as a medium for recording and reproducing images.

[0002]

2. Description of the Related Art In recent years, video tapes have come to be widely used as a medium for recording and reproducing images, such as news gathering and broadcasting business. Also a home VTR
With the spread of, the demand for video software has grown remarkably. Under such circumstances, how to leave the recorded video in the videotape cassette to create and edit programs and video software more efficiently, how to edit the videotape cassette, How to regenerate is becoming extremely important.

Further, the video equipment using a video tape cassette as a medium includes a photographing device capable of loading the video tape cassette using the video tape cassette as a recording medium, and a video for producing a master video tape cassette by editing the video tape cassette. There are an editing device, a video reproducing device for reproducing a video tape cassette for broadcasting, and the like. Some of the above video editing devices are described in JP-A-63-268178. The video editing apparatus will be briefly described below.

A conventional video editing apparatus will be described below with reference to the drawings. FIG. 27 is a block diagram showing an example of the most basic configuration of a conventional image editing apparatus. The original VTR1901 reproduces the original tape containing the original image to be edited, and the master VTR190
2 is connected to the original VTR 1 and records and reproduces the master tape being edited. The control unit 1903 is the original V
It controls the TR 1901 and the master VTR 1902. The control unit 1903 executes edit processing according to the edit data of the edit data recording unit 1904.

The operation of the conventional image editing apparatus configured as described above will be described by taking an editing operation generally called insert editing as an example. In the insert edit, the image of the original tape on the original VTR 1901 is inserted and recorded in a part of the image of the master tape on the master VTR 1902 to replace it. First, the control unit 1903 controls the master VTR 1902 to determine the insertion start point on the master side and edit data recording unit 190.
4 is registered. Next, the control unit 1903 controls the original VTR 1901 to determine the start point and the end point of the insertion image of the original tape and register it in the edit data recording unit 1904. As described above, since the information necessary for one edit point is gathered, the control unit 1903 controls the original VTR 1901 and the master VTR 1902 according to the data registered in the edit data recording unit 1904, and executes the insertion copy from the original VTR 1901 to the master VTR 1902. Will be done.

[0006]

However, the above-mentioned photographing device, video editing device, which uses a tape as a medium,
The video reproducing device has the following first to fourth problems. First, when recording an image on a videotape cassette for news coverage, there is a time lag until the videotape cassette is loaded into the shooting device and the videotape cassette becomes recordable. There was a problem that it could not be recorded. Also,
When the capacity of the video tape cassette is exhausted, it is necessary to replace the video tape cassette, but there is a problem that the video image taken during this replacement time cannot be recorded on the tape. Therefore, there is a possibility that recorded images may be interrupted during long-term shooting. In consideration of such breaks in recorded images, the same shooting system may be prepared in duplicate for long-term coverage shooting, but this doubles the number of personnel and equipment, and it is a burden on the budget. Is large and the operability is greatly deteriorated.

Secondly, when there are several tens of video tape cassettes to be collected, there is a problem that it is impossible to know which video tape cassette contains what unless it is properly managed. If you don't know, rewind each of the videotape cassettes,
It was necessary to reproduce and check the recorded contents of each video tape cassette, which was very time-consuming and annoying.

Thirdly, when a master tape is created by returning to the studio after collecting data and editing a large number of video tape cassettes photographed by a video editing apparatus, access is made because the medium for editing is a tape. Slow speed,
There is a problem that editing work cannot be performed smoothly because it takes time to wind the tape to a desired recording position, and a pre-roll for phase adjustment is indispensable.

Fourthly, when an image is to be broadcast by the image reproducing device, there is a time lag between the exchange of the tape and the loading of the tape, so that the reproduced image may be interrupted. In order to avoid this, there is a problem that the operator is at the mercy of the allocation for the reordering order in the broadcasting studio. Switching is, for example, a broadcast CM → telop →
Switching of images such as drama is performed, and in the above case, allocation is a video tape cassette in which CM is recorded, a video tape cassette in which telop is recorded, and a video tape cassette in which drama is recorded in a plurality of VTRs. Is to selectively reproduce. If the operator was tossed about by such allocation work, there was a risk that a strange video would be broadcast due to an operator's mistake in replacing the video tape cassette.

A first object of the present invention is to provide an image pickup apparatus in which recorded video is not interrupted even if there is a time lag until a video tape cassette is replaced or a recording becomes possible. A second object of the present invention is to provide a digest video in which a digest video of recorded contents can be recorded in a video tape cassette so that what is recorded in the video tape cassette can be confirmed in a short time.

A third object of the present invention is to provide a video editing apparatus which can realize smooth editing work while using a video tape cassette as a medium. A fourth object of the present invention is to provide a video reproducing apparatus capable of smoothing reproduction for broadcast output, without interruption of reproduced video even if there is a time lag between tape exchange and tape loading. is there.

[0012]

In order to achieve the above-mentioned first object, a photographing apparatus according to a first aspect of the present invention provides a video tape for temporarily storing a video signal of a video photographed by a camera in a disk device. An image capturing device for recording in a cassette, which has a disc device for accumulating image signals of images photographed by a camera, and which collectively reads out image signals for a predetermined photographing time accumulated in the disc device as image information The output buffer means, the detection means for detecting the storage capacity of the disk device, the disk remaining amount judgment means for judging whether or not the detected storage capacity of the disk device has reached a predetermined standard or less, and the video tape cassette. Video recording means for loading and recording video information collectively read by the video output buffer means on the loaded video tape cassette; Tape remaining amount detecting means for detecting the remaining amount of tape in the video tape cassette and whether or not the remaining amount of tape in the video tape cassette detected by the remaining tape amount detecting means has reached a predetermined standard or less If the tape remaining amount determining means and the tape remaining amount determining means determine that the storage capacity of the disk device does not reach the predetermined reference or less, the video output buffering means The reading control means for controlling the video recording means so as to discharge the video tape cassette and the tape remaining amount judging means judge that the predetermined level or less has been reached, and the disk remaining amount judging means If it is determined that the video tape cassette has also reached the predetermined standard or less, the operator is advised to immediately insert a new video tape cassette into the image recording means. And warning means for performing display, when a new video tape cassette is loaded,
And a release unit for releasing the read inhibition by the discharge control unit.

According to a second aspect of the present invention, there is provided a photographing apparatus according to the first aspect.
In the above configuration, the video output buffering means includes a release area storage means for storing a release area which is an area on the disc in which the video signal can be written in the disc device,
Writing means for writing a video signal in the release area stored in the release area storage means, and reading means for reading out a predetermined time of the video signal as aggregated video information from the area on the disk where the video signal is written by the writing means. Area management means for storing the area on the disk, from which the video signal has been read by the reading means, in the release area storage means as a release area.

According to a third aspect of the present invention, there is provided a photographing apparatus according to the second aspect.
In the above configuration, the video output buffering means has a calculating means for calculating a read amount according to the remaining amount detected by the remaining tape amount detecting means, and the read means outputs the calculated read amount for the predetermined time. It is characterized in that video information is read from the disk device as a minute reading amount.

According to a fourth aspect of the present invention, there is provided a photographing apparatus according to the third aspect.
In the above configuration, the amount of information of the image information per unit time is twice the amount of information of the image signal per unit time, and the image recording means includes a loading mechanism for loading a video tape cassette and four image recording units. A cylinder in which the heads are placed at 90 ° intervals, a winding mechanism for winding the tape of the loaded video tape cassette on the cylinder, and a winding mechanism driven at a speed corresponding to the amount of image information. Drive control means for controlling to record the video information on the tape by using one video recording head.

According to a fifth aspect of the present invention, there is provided a photographing apparatus according to the fourth aspect.
In the above configuration, the tape remaining amount detecting means includes a calculating unit for calculating the tape remaining amount T by the calculation shown in (Equation 1). According to a sixth aspect of the present invention, in the configuration of the fourth aspect, the tape remaining amount detecting means detects a rotation speed of the take-up reel in the winding mechanism and a rotation speed of the supply reel in the winding mechanism. And a calculation unit for calculating the remaining amount T of the tape by the calculation shown in (Equation 2).

According to a seventh aspect of the present invention, there is provided a photographing apparatus according to the fourth aspect.
In the configurations of 6 to 6, the photographing device has an insertion detecting means for detecting insertion of the video tape cassette into the loading mechanism, and the reading means detects insertion of the video tape cassette by the insertion detecting means. The reading of the video information of the disc is started, the writing means starts the writing to the disc when the reading by the reading means is started, and the area management means starts the writing of the video signal by the writing means on the disc. It is characterized in that an area having a predetermined size from the position where is written is stored in the release area storage means as a catalog area which is an area of a catalog image.

An image pickup apparatus according to an eighth aspect is the image pickup apparatus according to the seventh aspect.
In the above configuration, the photographing device has an operation panel for performing a recording stop operation and a recording restart operation, and the reading means starts reading the video information of the disc when the recording stop operation is performed, When reading the video information to be read is finished, the reading of the video information on the disc is stopped,
The writing means stops writing to the disc when a recording stop operation is performed, resumes writing to the disc when a recording restart operation is performed, and the area management means resumes writing on the disc. It is characterized in that an area having a predetermined size from the position where the video signal is written is managed as a catalog area which is an area of the catalog video.

According to a ninth aspect of the present invention, there is provided an image pickup apparatus according to the eighth aspect.
In the above configuration, the reading means has a reading control section for reading the video information from the catalog area when the remaining tape amount is judged by the remaining tape amount judging means to reach a predetermined reference value or less, and the area managing means is provided. When the catalog video is read, the area stored as the catalog area is stored in the release area storage means as the release area, and the discharge control means, after the read catalog video is recorded on the tape, It is characterized in that the video recording means is controlled so that the video tape cassette is unloaded and the video tape cassette is ejected.

In order to achieve the second object, claim 1
A digest video creation apparatus according to 0 has a video tape cassette having a tape on which a video segmented into each cut is recorded, and a storage unit that stores position information indicating where the cut is recorded on the tape. A video deck that loads a video tape cassette and plays back the video information of the loaded video tape cassette, and a video deck that winds the tape to the beginning position of each cut based on the position information stored in the storage unit. A winding control means for controlling the VCR, a reproduction control means for controlling the VCR so as to reproduce the beginning portion of each cut for a predetermined time after winding, and accumulate the reproduced cut for the predetermined time. The winding control means and the reproduction control are performed until the disc device and each cut are completely reproduced, or until the disc device is filled with video information. Repeating means to repeat the start of the stage, and when the video information at the beginning of each cut is played back once, or when the disc is filled with video information, the video deck so that the tape is wound around the unrecorded area. Recording control means for controlling the VCR and the disc so as to record all the video information on the disc as a digest video in the unrecorded area.

According to the eleventh aspect of the present invention, in the digest image producing apparatus according to the tenth aspect, the predetermined time for reproducing the beginning portion of the reproduction control means is from the unrecorded area of the tape in the video tape cassette. It is the time required to wind to the beginning of each cut, the playback control means, the acceleration performance for tape feeding of the VCR,
It is characterized by having a determining means for determining the reproduction time of each cut based on the maximum speed and the braking performance.

In order to achieve the third object, claim 1
The video editing apparatus according to No. 2 has a first video deck for loading a video tape cassette for an original tape, reproducing video information from the loaded video tape cassette, and a disk device for storing the reproduced video information. A video output buffering means for reading the stored video information from the disk device, a display means for displaying the output video information one frame at a time, and an operation for stopping the video display displayed on the display means, or a display The operation panel to move the selected image forward or backward, the operation panel, a determination means for determining the reproduction position of the image information according to the operation performed on the operation panel, and the determined reproduction position. A determination means for determining whether or not the video information is stored on the disc, and if stored, the video information of the determined playback position is displayed. A first drive control means for controlling the disc so that the first video deck is controlled so as to reproduce the video information at the determined reproduction position if not stored. A second video deck for loading the video tape cassette for the master tape and recording the video information reproduced or output according to the operation of the operator in the loaded video tape cassette.

[0023] In order to achieve the fourth object, claim 1
The video reproducing apparatus according to 3 is a video reproducing apparatus for reproducing video information from a video tape cassette, temporarily storing the reproduced video information in a disk device, and reproducing the accumulated video. , Video reproducing means for intermittently reproducing the video information from the loaded video tape cassette, accumulating means for accumulating the reproduced video information in an unrecorded area of the disk device, and accumulating in the disk device by the accumulating means. The video output means for outputting video information as a continuous video signal on the time axis in a small amount, and the capacity of the entire storage area of the disk device is occupied by the capacity of the unrecorded area and the output video output by the video output means. The capacity of the area that has been used is subtracted, and the subtracted amount is calculated as the storage capacity. The area occupied by the video information, the control means for accumulating the video information reproduced by the video reproducing means, and whether or not the storage capacity of the disk subtracted by the storage capacity calculating means has reached a predetermined standard or less. A disc remaining amount determining means, a prohibiting means for inhibiting the reproduction of the video signal by the video reproducing means when the value is below the reference, and a video signal on the disc device while the reproduction of the video tape cassette is prohibited. It is provided with a releasing means for releasing the prohibition of the reproduction of the video tape cassette when a predetermined amount or more is output, and a warning display means for displaying a warning for replacing the tape when the tape is completely reproduced by the image reproducing means. Is characterized by.

[0024]

According to the photographing apparatus of the first aspect, the image signal of the image photographed by the camera is accumulated in the disc device. The video signals for a predetermined shooting time accumulated in the disk device are collectively read as video information by the video output buffering means. The storage capacity of this disk device is detected by the detection means. The disc remaining amount determination means determines whether or not the detected storage capacity of the disc device has reached a predetermined reference value or less.

The video information collectively read by the video output buffer means is recorded in the video tape cassette loaded by the video recording means. While such recording is being performed, the remaining tape amount of the loaded video tape cassette is detected by the remaining tape amount detecting means. The remaining tape amount determination means determines whether or not the remaining amount of tape in the video tape cassette detected by the remaining tape amount detection means has reached a predetermined reference value or less. If it is determined by the tape remaining amount determining means that the storage capacity of the disk device has not reached the predetermined reference or lower, and the storage capacity of the disk device has not reached the predetermined reference or lower, the ejection control means determines the video output by the video output buffering means. The reading of information is prohibited, and the video recording means is controlled to eject the video tape cassette.

If it is judged by the tape remaining amount judging means that it has reached the predetermined standard or less, and if the disk remaining amount judging means also judges that it has reached the predetermined standard or less, the new video tape cassette is immediately imaged. A warning is displayed by the warning means to the operator so as to load the recording means. When the operator loads a new video tape cassette by the warning means, the reading prohibition by the ejection control means is canceled by the canceling means.

Further, according to the photographing apparatus of the second aspect, the release area storage means stores the release area which is an area on the disc in which the video signal can be written in the disc device. The writing means writes the video signal in the release area stored in the release area storage means. The video signal for a predetermined time is read out as the collected video information from the area on the disc where the video signal is written by the writing means by the reading means.

The area on the disk from which the video signal has been read by the reading means is stored in the release area storage means as the release area by the area management means. According to the third aspect of the present invention, the reading amount according to the remaining amount detected by the remaining tape amount detecting unit is calculated by the calculating unit, and the calculated reading amount is set as the reading amount for the predetermined time. Video information is read from the disk device by the reading means.

According to the photographing apparatus of the fourth aspect, the video tape cassette is loaded into the loading mechanism. Further, four image recording heads are arranged at 90 ° intervals in the cylinder. The tape of the loaded video tape cassette is wound around the cylinder by the winding mechanism, and the winding mechanism is driven at a speed corresponding to the amount of image information under the control of the drive control means. As a result, the video information is recorded on the tape by the four video recording heads.

According to the seventh aspect of the present invention, the insertion detecting means detects the insertion of the video tape cassette into the loading mechanism. The reading means starts reading the video information of the disc when the insertion detecting means detects the insertion of the video tape cassette, and the writing means writes the disc information when the reading means starts reading. To start.

An area of a predetermined size from the position where the video signal is written by the writing start of the writing means on the disc is stored in the release area storage means as the catalog area which is the area of the catalog video by the area management means. . Further, according to the photographing apparatus of claim 8, when a recording stop operation and a recording restart operation are performed on the operation panel, the reading means starts reading the video information of the disc, and the video information to be read. After reading, the reading of video information from the disc is stopped. When a recording stop operation is performed, the writing means stops writing to the disc, and when a recording restart operation is performed, writing to the disc is restarted. An area of a predetermined size from the position where the video signal is written by the restart of writing on the disc is managed by the area management means as a catalog area which is an area of the catalog video.

According to the ninth aspect of the present invention, when the tape remaining amount determining means determines that the remaining amount of the tape has reached the predetermined reference level or less, the video information is read from the catalog area by the read control unit. . When the catalog image is read, the area that has been stored as the catalog area by the area management unit is stored in the release area storage unit as the release area, and when the read catalog image is recorded on the tape, the video is then recorded. The loading mechanism is controlled by the ejection control means to unload the tape cassette and eject the video tape cassette.

According to a tenth aspect of the present invention, a digest video image producing apparatus loads a video tape cassette, and the video information of the loaded video tape cassette is reproduced by the video deck. The video deck is controlled by the winding control means so that the tape is wound up to the head position of each cut based on the position information stored in the storage unit. After winding, the reproduction control means controls the video deck to reproduce the beginning portion of each cut for a predetermined time. The winding control means and the reproduction control means are repeated by the repeating means until the disc device accumulates cuts for a predetermined time that have been reproduced and the cuts are reproduced once or until the disc device is filled with video information. Is repeatedly activated.

When the video information at the beginning of each cut is reproduced or when the disc is filled with the video information, the video deck is controlled so that the tape is wound around the unrecorded area, and the recording control is performed. The means controls the VCR and the disc so as to record all the video information on the disc as a digest image in the unrecorded area. According to the digest image creating apparatus of the eleventh aspect, the deciding means decides the reproduction time of each cut based on the accelerating performance, the maximum speed, and the braking performance related to the tape feeding of the VCR by the deciding means.

According to the video editing apparatus of the twelfth aspect, the video tape cassette for the original tape is loaded, and the video information is reproduced from the loaded video tape cassette by the first video deck. The reproduced video information is stored in the disk device, and the stored video information is read from the disk device by the video output buffering means. The output video information is displayed on the display unit frame by frame.

When an operation for stopping the image display displayed on the display means or an operation for moving the displayed image forward or backward is performed on the operation panel,
The reproduction position of the video information corresponding to the operation is determined by the determination means. Whether the video information of the determined reproduction position is stored in the disc is determined by the determination means, and if stored, the first drive control means outputs the video information of the determined reproduction position to the disc. Is controlled.

If it is not stored, the first drive deck is controlled by the second drive control means so as to reproduce the image information at the determined reproduction position, the video tape cassette for the master tape is loaded, and the operator's video tape cassette is loaded. The video information reproduced or output according to the operation is recorded in the video tape cassette loaded by the second VCR.

According to the video reproducing apparatus of the thirteenth aspect,
The video tape cassette is loaded in the video playback means, and the video information is intermittently played back from the loaded video tape cassette. The video information reproduced in the unrecorded area of the disk device is stored in the storage means. The video information stored in the disk device by the storage means is output by the video output means in the form of a continuous video signal on the time axis.

While this output is being carried out, the storage capacity calculation means determines the capacity of the unrecorded area from the capacity of the entire storage area of the disk device and the capacity of the area occupied by the output video output by the video output means. Subtraction is performed, and the deduction is calculated as the storage capacity. The video information reproduced by the video reproducing means is accumulated by the control means in the area occupied by the video information output by the video output means.

Whether or not the storage capacity of the disk deducted by the storage capacity calculation means has reached a predetermined reference level or less is determined by the disk remaining amount determination means, and if the storage capacity is less than the reference level, the prohibition means causes the video reproduction means to operate. Reproduction of the video signal is prohibited. When the video signal on the disk device is output by a predetermined amount or more while the reproduction of the video tape cassette is prohibited, the prohibition of the reproduction of the video tape cassette is released by the releasing means.

When the tape is completely reproduced by the image reproducing means, the warning display means gives a warning display for replacing the tape.

[0042]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An image recording / reproducing apparatus according to an embodiment of the present invention will be described below with reference to the drawings. Figure 1
It is an external view showing the external appearance of the imaging device according to the embodiment. FIG.
FIG. 3 is a block diagram showing a configuration of an image pickup apparatus according to the first embodiment. In FIG. 2, the photographing device includes a disc-type video transmission buffer unit 1, a video cassette recorder 2, a disc-side remaining amount detecting unit 4, a tape-side remaining amount detecting unit 5, and a control unit 6.
And an operation panel 7.

The optical system mechanism 50 includes a lens, an iris for stopping the exposure, an image pickup device for receiving light incident through the lens and the iris, an amplification circuit for amplifying and outputting the output of the image pickup device, and 1/30 second. And a processing circuit for outputting an image in the NTSC signal state for each (the NTSC signal is referred to as an image signal in this embodiment). It should be noted that a time interval such as 1/30 second in which a frame-based image is output is called one frame period.

The disc-type video transmission buffer unit 1 has a built-in disc device for accumulating the video signal output from the optical system mechanism 50, and stores the accumulated video in the video cassette recorder 2.
Output to The video cassette recorder 2 is loaded with the video tape cassette 3 and records on the video tape cassette 3 output from the disc-type video transmission buffer unit 1.

The video tape cassette 3 is a DVC standard video tape cassette on the premise of recording / reproducing of digital images, and can record digital images and NTSC images. The disc-side remaining amount detecting unit 4 detects the recordable capacity of the disc device incorporated in the disc-type video transmission buffer unit 1.

The tape-side remaining amount detecting section 5 detects the recordable capacity of the video tape cassette 3 loaded in the video cassette recorder 2. The control unit 6 operates the operator via the operation panel 7, the remaining amount signal output from the disc-side remaining amount detection unit 4, and the remaining amount signal output from the tape-side remaining amount detection unit 5. In response to the loading state signal 107 indicating whether the video tape cassette 3 is in a recordable state in the video cassette recorder 2, the playback position is instructed to the disc-type video transmission buffer unit 1, and the reading start and the reading stop are performed. Instruct write start and write stop. Further, the recording position is instructed to the video cassette recorder 2, and the recording start and recording stop are instructed.

FIG. 3 is a block diagram showing the internal structure of the disk-type video transmission buffer unit 1 in FIG. The disk device 9 is a randomly accessible hard disk device, and its total storage capacity is capable of accumulating a video signal input from the input buffer 11 for at least several tens of seconds. The transfer capability can collectively record the input amount of the video signal per unit time in a shorter time, and can collectively reproduce in the shorter time. The video signal stored in the disk device 9 also becomes the output signal of the disk-type video transmission buffer unit 1 through the output buffer 12 through the host bus 202.

The free area management unit 10 stores the free area in the disk and manages the free area. The release area refers to an area on the disc in which the video signal can be written, and the video signal is not written to any area other than the release area. When the video is read from the written area on the disc, the release area management unit 10 stores the read area on the disc as a release area. As described above, the release area management unit 10 releases the area on the disk as it is read, but does not release the area corresponding to the beginning of recording on the tape. The beginning part of recording on the tape means an image for several seconds after the video tape cassette 3 is loaded or when the operator stops recording and starts recording.
By leaving the video of this beginning part on the disc,
The image on this disc can be used as a catalog image. This catalog image will be described with reference to FIG. FIG. 4 is an explanatory diagram for explaining the catalog image. The catalog image is information for listing the contents of the tape (see reference symbols a1 and a2), and when these are recorded together at the end of the tape, the end of the tape is slightly rewound and reproduced. It is possible to list what is recorded on the tape (arrows a4, a
5, a6).

The input buffer 11 is a semiconductor memory and temporarily stores the video signal input to the disk-type video transmission buffer unit 1. The scale is relatively small because it can be a unit that constitutes video information, for example, a frame unit. The output buffer 12 is also a semiconductor memory like the disk-type video transmission buffer unit 1, and smoothes the burst-shaped reproduction signal reproduced from the disk device 9 into a continuous signal. The storage capacity of the semiconductor memory applied to the output buffer 12 may be several times as large as the storage capacity of the input buffer.

In the first half of one frame period, the control unit 13
The video is written in the area stored in the released area management unit 10, that is, the area recorded as released. Further, the video recorded on the disc in the latter half of the one frame period is read to the output buffer 12. After the reading, the release area management unit 10 releases the area in which the video was recorded. As described above, the control unit 13 repeats the release of the area and the writing to the released area, and uses the read area for video recording.

FIG. 5 is a time chart showing how the video information flows in the disk-type video transmission buffer section shown in FIG. In this figure, the horizontal axis represents the passage of time and the vertical axis represents the amount of information per unit time. FIG. 5 (a)
Shows the flow of the video signal on the input side of the input buffer 11 in FIG. It can be seen from FIG. 5A that the amount of information per unit time is constant and there is no interruption. FIG. 5B shows the flow of video information on the output side of the input buffer 11. Referring to FIG. 5B, the video signal stored up to the full capacity of the input buffer 11 is discharged at once when the input buffer 11 is full, and a video signal having a large amount of information per unit time is output intermittently. This is recorded in the disk device 9. FIG. 5C shows a video signal reproduced from the disk device 9 and input to the output buffer 12. FIG. 5 (c)
In the same way as in FIG. 5B, video signals having a large amount of information per unit time are further locally collected. The output buffer 12 smooths this and outputs a time-compressed video signal as shown in FIG.

Next, how the disc side remaining amount detecting section 4 detects the remaining amount of the disc device will be described with reference to FIG. FIG. 6 is a schematic diagram schematically showing video recording and video reproduction on a disc. The entire recording capacity of the disk-type video transmission buffer unit 1 is represented by a donut-shaped figure 601. Recording on the disc-type video transmission buffer unit 1 is expressed as recording on an arc area indicated by the recording pointer 602, and reproduction is expressed on an arc area indicated by the reproduction pointer 603. In recording, when the arc-shaped area is filled with the video signal to be recorded, the recording pointer 602 advances the doughnut-shaped figure 601 in the clockwise direction. Similarly, when the video signal to be reproduced is read out during reproduction, the reproduction pointer 603 is also advanced in the clockwise direction.

Referring again to FIG. 5, recording in the disk-type video transmission buffer unit 1 is continuously performed as shown in FIG. 5 (a), and reproduction is intermittently performed as shown in FIG. 5 (d). Be seen. Therefore, the recording pointer 602 of FIG. 6 continuously advances in the clockwise direction with time. On the other hand, the playback pointer 603 intermittently advances in the clockwise direction, and at the same time, FIG. 5D shows that the video signal has a large amount of information per unit time. Faster.

The total storage capacity of the disk device 9 in the disk-type video transmission buffer 1 in the initial state corresponds to the total circumference of the donut-shaped figure 601 in FIG. Record pointer 60
The area between 2 and the reproduction pointer 603, on the side of the figure 601 where the hatching is applied, indicates the area where the video has already been recorded and has not been reproduced, and this area is for the purpose of recording a new video signal. Not available for. Therefore, the recording capacity of the disk device 9 is indicated by the arc length of the graphic 604, and the recording capacity A modulo L is obtained by calculating RP (the position of the recording pointer 604 is R, the reproduction pointer is R). The position of 603 is P, and the total storage capacity of the disk-type video transmission buffer 1 in the initial state is L.) By the way, since it is necessary to leave the catalog video on the disk device 9, the recording pointer 602. The playback pointer 603 skips the beginning of the area in which the video signal is recorded. In this case, L ', which is the amount of video information to be left temporarily, subtracted from L
Can calculate the recording capacity A of the disc by calculating R−P. Since the R and P necessary for the calculation are always held by the control unit 13 of the disc-type video transmission buffer unit 1, the disc-side remaining amount detection unit 4 can obtain the storage capacity of the disc device 9 based on this. .

FIG. 7 is a schematic diagram showing the video cassette recorder 2 and the video tape cassette 3. The video tape cassette 3, which is a recording medium removable from the apparatus, is loaded on the tape deck 402, and the tape 403 is loaded on the rotating cylinder 40 by loading posts 404 and 405.
6 and is driven by a capstan motor 407 and a pinch roller 408.

FIG. 8 is a perspective view showing the state of the head mounted on the cylinder 406 of the video cassette recorder 2. FIG. 8B shows an example of a head arrangement used for image recording in a normal video cassette recorder. As shown in the figure, two heads 501 and 502 are arranged every 180 degrees on the circumference of the cylinder. With this arrangement, the two tracks are moved to the tape 4 while the cylinder 406 makes one rotation.
Formed on 03.

On the other hand, in the cylinder 406 of the first embodiment, the heads 503 and 504 are arranged as shown in FIG.
Are added, and four heads are arranged every 90 degrees on the circumference of the cylinder 406. As a result, the cylinder 40
Four tracks are formed during one rotation of 6. The positions and angles of the loading posts 404 and 405 and the trajectory of the step formed on the side surface of the cylinder 406 for instructing the tape running are finely adjusted so that the angle of the track formed on the tape 403 is properly maintained. Therefore, the tape feed amount of the capstan motor 407 of FIG. 7 is set to be twice as large as that of the head arrangement of FIG. 8B so that the track interval can be properly maintained.

Since such settings are made, FIG.
The video cassette recorder 2 can record twice as many video signals as usual per unit time on the video tape cassette 3. It should be noted that providing the four heads in the cylinder in this manner is an example, and the cylinder may be rotated at a double speed to record a video signal twice as high as usual in a video tape cassette.

FIG. 9 is a schematic diagram showing the video cassette recorder 2 for explaining the operation of the tape side remaining amount detecting portion 5. The tape 403 on which the video cassette recorder 2 records the video signal is sent from the supply reel 701 and wound on the take-up reel 702. Since the video cassette recorder 2 is configured in this way, the recording capacity T is

[0060]

(Equation 3) It can be calculated by street calculation. In this formula, when the recording capacity of the video tape cassette 3 in the initial state is To, π is the circumference ratio, V is the tape feeding speed during recording, and t is
Is the thickness of the tape, ω1 is the rotation speed of the take-up reel, R
o is the radius of the reel hub. When the rotation speed ω2 of the supply reel can be detected, the recording capacity T of the video cassette recorder 2 is

[0061]

(Equation 4) It can be calculated by street calculation. As described above, the tape-side remaining amount detecting unit 5 receives the rotation speed of either the supply reel 701 or the take-up reel 702 of the video cassette recorder 2 and executes the calculation of the above two mathematical formulas to perform the operation of the video cassette. The recording capacity of the recorder 2 can be detected at any time.

The disc-type video transmission buffer unit 1 is used.
Alternatively, the tape-side remaining amount detection unit 5 needs to perform the calculation according to the above mathematical formula, and the calculation capacity of the microcomputer can be used for this. The details of the program and the like can be easily inferred by those skilled in the art, and thus the description thereof is omitted here. The control unit 6 performs integrated processing control of the imaging device based on an operation instruction given to the operation panel 7. FIG. 10 is a flowchart showing the contents of the steps executed by the control unit 6. Hereinafter, the operation of the photographing device used for photographing the coverage will be described with reference to the flowchart of FIG. In the flowchart of FIG. 10,
The recording medium replacement flag is a flag that is turned on when the video tape cassette is in a state where it should be replaced, and is turned off otherwise. Further, the reproduction start flag is a flag which is turned on when the remaining amount of the disc is very small and is turned off otherwise. Further, the medium unusable flag is a flag which is turned on when it is in a state where data cannot be recorded on the tape or the disk, and is turned off when it is not.

In this figure, the steps marked with white circles "○" indicate a series of steps that are repeated when there is a margin in the remaining amount of either the tape or the disk. Also, the steps marked with a triangle "Δ" indicate a series of steps that are repeated when the remaining amount of the tape has reached the standard or less, although the remaining amount of the disk has a margin. The steps marked with a black circle “●” indicate a series of steps that are repeated when the remaining amount of the tape reaches the standard or less and the remaining amount of the disk also reaches the standard or less. In addition, the triangle "▽"
The steps marked with indicate a series of steps that are repeated when the tape is replaced.

The operator mounts the photographing device on the vehicle for data collection,
It is assumed that a large number of videotape cassettes for shooting are prepared and they go to the interview. After arriving at the interview site, it is assumed that shooting has finally started. With the video tape cassette loaded, the operator carries the photographing device on his shoulder and turns on the battery power of the photographing device, and the control unit 6 initializes various flags in step S1. Next condition judgment step S
In step 2, it is checked whether the video tape cassette 3 is loaded in the video cassette recorder 2 and is in a recordable state.

<< Refer to ○ mark Video cassette recorder 2
Is recordable >> When the video cassette recorder 2 is recordable, the process proceeds to step S3. In step S3, the recording capacity of the video tape cassette 3 loaded in the video cassette recorder 2 is checked. Specifically, the control unit 6 receives the remaining amount signal from the tape side remaining amount detection unit 5 and compares it with a preset end detection level (Yes, No). If Yes in step S3, that is, if the comparison result is sufficient, the process proceeds to step S8 and step S8.
Then, the threshold level is gradually decreased based on the remaining amount of the video tape cassette 3. When such processing control is performed, the threshold level gradually decreases as it approaches the end. After execution of step S8, the process proceeds from step S8 to step S5, and the remaining amount of the disc is checked in step S5. After that, the process proceeds to step S10, and it is determined in step S10 whether the recording medium replacement flag is on or off. Step S1
If the recording medium exchange flag is not set at 0, it is checked at step S11 whether the operator has given an instruction. If not, the process proceeds to step S12 after executing step S11. In step S12, it is determined whether the reproduction start flag is set. If it is not set, there is a margin in the capacity of the disk, so the process returns to step S1 and the above series of steps is repeated. Steps S1 to S3 and S described above
By repeating a series of processes of 8, step S5, step S10 to step S12, writing to the disc with the first information amount and reading from the disc with the second information amount are continuously performed. If the reading and writing with the second amount of information is continued in this way, the remaining amount of the tape decreases.

<< The remaining amount of the video tape cassette is small △
Refer to the step marked with >> As the captured video is recorded on the tape, the remaining amount of the tape becomes small, and the above step S3 results in No (remaining little), and the process proceeds from step S3 to step S6. . In step S6, the warning lamp L1 shown in FIG. 1 is turned on to notify the operator that the remaining amount of the tape is low, and the recording medium exchange flag is set in step S7. After setting, it is determined whether or not the recording medium replacement flag has been replaced in step S10 via steps S8 and S5. If so, the process proceeds from step S10 to step S18.

<Unloading of video tape cassette △
In step S18, the catalog video left unoverwritten in the disk device, that is, the video signal for a fixed time from the time when the recording start is instructed is recorded in the video tape cassette 104. When the recording is completed, the video cassette recorder 2 of the video tape cassette 104 is unloaded and ejected, and at the same time, the recording pointer 602 and the reproduction pointer 603 are opened to release the catalog area set on the disc. Control goes to step S1.

The process proceeds to step S1, and steps S1 to S3, step S8, step S5, step S
10, the process of step S11 is performed again, and step S
At 12, it is determined whether the reproduction start flag is on or off.
If step S12 is No, there is enough disk capacity, so the process proceeds to step S1, and steps S1 to S3, step S8, step S5, and step S5.
The series of processing from step 10 to step S12 is repeated.

<< Refer to the steps marked with ●. The video tape cassette is not loaded and the remaining amount of the disc is gradually reduced. >> The release area is increased by repeating the writing to the disc while the video tape cassette is not loaded. Instead, the images are accumulated in the disk device. As the disk accumulates, the remaining disk capacity also decreases. When the remaining amount decreases, the determination in step S5 becomes No, and the reproduction start flag is set in step S9. When the process proceeds to step S12 through step S10 and step S11, the answer is Yes in step S12, and the process proceeds to step S13. In step S13, the control unit 6
Checks on / off of the recording medium unusable flag. If the medium unusable flag is set, it means that the capacity of the disk is very small. Therefore, the process proceeds to step S15.
In step S15, the warning lamp L2 shown in FIG. 1 is turned on so that the operator can load the video tape cassette 3 into the video cassette recorder 2, and the process returns to step S1.

<< New video tape cassette loaded
Refer to the steps marked with Δ >> If the operator sees this warning and loads the video tape cassette into the photographing device, step S2
The answer is No, the process proceeds from step S2 to step S4, and the medium unusable flag is set in step S4.
When the medium unusable flag is set, step S13
Then, since it is determined that the medium unusable flag is on / off, the process proceeds from step S13 to step S16.

In step S16, the video signal is transferred from the disk-type video output buffer 1 to the video cassette recorder 2. In step S17, control is performed so that a certain amount of time is skipped from the position of the pointer recorded in the recording start point register when the transfer is completed. When the above steps are completed, the process returns to step S1 again, and a series of steps S1 to S3, step S8, step S5,
Repeat step S10. When the operator operates the operation panel 7, this operation is detected in step S11. If it is a recording stop operation, the reproduction start flag is set, and the process proceeds to step S12. In step S12, it is first determined whether or not the reproduction start flag is set, but since it is not set (because there is enough disk capacity), step S12 is performed.
Return to 1 and repeat the above series of steps.

In the case of shifting from the stop to the recording, at the time when the transfer is completed, the control is performed so as to skip a predetermined time from the position of the pointer recorded in the recording start point register in step S17. As described above, according to the present embodiment, recording on the video tape cassette 3 is performed intermittently, and recording can be performed without interruption in the disk-type video transmission buffer unit 1 even when the video tape recorder 2 is not loaded. I can continue. Therefore, in a situation such as news program coverage, it is possible to prevent itself from being unable to shoot an image during loading of the video tape cassette 3 or during replacement. In addition, long-time shooting can be performed without interruption. Therefore, it is not necessary to prepare the same photographing system twice, and the operability of the photographing for coverage can be greatly improved.

Further, near the end of the video tape cassette 3, the video signals for a while from the point where the operator started recording for each cut are recorded and recorded as a catalog video. In the above, the operator is not bothered to manage the recorded information. In other words,
The operator can concentrate on the interview. In addition, since the process of searching for an editing point can be greatly shortened by advancing the editing based on the catalog image in the editing process following the interview, the efficiency of the editing process can be improved.

(Second Embodiment) The second embodiment relates to a video editing apparatus. FIG. 11 is an external view showing the external appearance of the video editing apparatus according to the second embodiment, and FIG. 12 is a block diagram showing the configuration of the video editing apparatus according to the second embodiment of the present invention. The components having the same functions as those in the configuration diagram of FIG. 2 are designated by the same reference numerals, and the duplicated description will be omitted. In the present embodiment, the video editing apparatus edits a plurality of videotape cassettes that have been shot to create a master tape.

As shown in FIG. 12, the video editing apparatus includes a video tape cassette 3 (in the figure, called an original video tape cassette 3, this is the same as the video tape cassette 3). , A disc side remaining amount detecting unit 4, a video cassette recorder 14, a disc type video transmission buffer unit 15, and a video cassette recorder 16
A video tape cassette 17 (which is also called the master video tape cassette 17 in the figure, but this is also the same as the video tape cassette 3), a display 18, and a position-speed operation instruction section 19. , Control unit 20
It is composed of

The video cassette recorder 14 is obtained by adding a reproducing head to the video cassette recorder 2 shown in FIG. Similarly to the recording function, the reproducing function using the reproducing head also reproduces the second information amount. By this reproduction, the video cassette recorder 14 loads the video tape cassette 3 and reproduces the image recorded in the video tape cassette 3.

The disc-type image transmission buffer unit 15 has the same structure as the disc-type image transmission buffer unit 1 shown in FIG. The video cassette recorder 16 stores the reproduced video signal with the first information amount and stores the reproduced video signal intermittently with the first information amount.
Output to

The video cassette recorder 16 has the same structure as that of the video cassette recorder 2, but the video cassette recorder 16 is loaded with the master video tape cassette 17, and the disc type video transmission buffer unit 15 is loaded with the first information amount.
The video signal reproduced by is recorded in the master video tape cassette 17. The display 18 is a cathode ray tube type image receiving device, and displays the video signal output by the disk-type video transmission buffer 15 with the first amount of information.

The position-speed operation instructing section 19 receives an instruction of the reproducing speed and the reproducing position by the operator via the keyboard exposed outside the casing and the dial. position-
When the operator operates the speed operation instructing section 19, an image at a desired reproduction position on the tape recorded in the video tape cassette 3 is reproduced on the display 18 and the video cassette recorder 16, and the image is displayed. 18 is displayed by the video cassette recorder 16 and the master video tape cassette 17 is displayed by the video cassette recorder 16.
Recorded in.

FIG. 13A shows the position-speed operation instruction section 19
It is a block diagram which shows. The position-speed operation instruction section 19 includes
Cylindrical dial with a diameter of about 4-5 cm 1
501 is arranged on the panel of the apparatus, and its twist angle is converted into an electric signal by the rotary encoder 1502. A keyboard 1503 in which keys corresponding to the numbers 0 to 9 and keys corresponding to special characters for inputting are combined is arranged near the dial 1501 and converts the content input by the key into an electric signal.

The playback speed is instructed by manually operating the dial 1501 of FIG. 13A. For example, if the arrow of the dial 1501 is aligned with the position of 1504 of FIG. Playback will be instructed. When the dial 1501 is rotated clockwise from this state, reproduction in the forward direction is performed, and the reproduction speed is 150
It increases as the rotation angle from 3 increases. When the dial 1501 is rotated counterclockwise, reproduction is performed in the reverse direction, and similarly, the size of the reproduction speed increases in proportion to the rotation angle.

The playback position is designated by the keyboard 1503 shown in FIG. A unique number corresponding to each playback position is assigned in advance, and the keyboard 150
The playback position is selected by key punching 3 and inputting the number. The control unit 20 controls the processing of the video editing device. The processing control of the control unit 20 will be described with reference to FIG. FIG. 14 is a flowchart showing the processing contents of the control unit 20.

After returning from the interview, the operator carried out many videotape cassettes containing the shooting contents from the vehicle for the interview into the studio, sat down toward the video editing device,
I'm about to start editing. When the power of the video editing apparatus is turned on, the control unit 20 monitors whether or not the reproduction position and the reproduction speed are input from the position-speed operation instructing unit 19 by the operator in step U1. Numeric keypad 1503
Is pressed by the operator to specify the playback position. When the reproduction position is designated, the process proceeds to step U2, and in step U2, the reproduction position accepted in step U1
It is determined whether or not the video signal at the reproduction position after a certain time period expected from the reproduction speed is recorded in the disk device 9 of the disk-type video transmission buffer unit 1.

When the image corresponding to the reproduction position is recorded on the disc, the process proceeds to step U7, and step U7
To play the video from the disc. After the reproduction, the process returns to step U1 again to accept the instruction in step U1. If the playback position is continuously specified in this way, as long as the video to be set at that playback position is on the disc, step U
The process of the series of steps of 1, step U2 and step U7 is repeated, and the image to be edited is displayed on the display 18 by reading from the disc.

It is assumed that such processing is performed and the reproduction position of the video which does not exist on the disc is designated in step U1. In this case, step U2 becomes No and step U2
Move to 3. In step U3, the control unit 20 winds the tape to the position where the video to be reproduced is recorded. As soon as the video tape cassette 3 reaches the reproducing position by this winding, the video cassette recorder 14 is instructed to start the reproducing operation.

Subsequently, in step U4, it is determined whether or not there is an unrecorded area on the disc, and the disc-type video transmission buffer unit 15 is instructed to perform a recording operation in the unrecorded area.
After instructing, in step U6, start playing the tape,
The reproduced image is recorded in the unrecorded area of the disc.
In step U7, the disc-type video transmission buffer unit 1 is instructed to perform reproduction at a speed corresponding to the reproduction speed instruction accepted in step U1. When the reproduction is performed for a certain time, the process returns to step U1 through step U7. Step U
While the image is being reproduced at 6, the image is reproduced from the disc, and the image corresponding to the operation is displayed on the display 18.

In step U1, the position-speed operation instruction section 1
Although an instruction of the reproduction position and the reproduction speed from 9 is received, if the operator operates and a new reproduction position is instructed by the position-speed operation instructing unit 19, the reproduction position corresponding to the instruction is calculated. Then, it is determined whether or not it is recorded in the disc-type video transmission buffer unit 1. Also, a series of steps U1, U2, U3, U4, U6, U
When 7 is repeated, the disk-type video transmission buffer 15
The recording area of will gradually decrease. When it is determined in step U4 that the remaining amount is below the preset level by the remaining amount signal of the disc side remaining amount detecting portion 4, in step U5, the reproduction position indicated by the position-speed operation instructing portion 19 is determined. The old area is regarded as the unrecorded area and the recording area is secured. After the release, the process moves to step U6 and step U7, and a series of these processes is repeated.

As described above, according to this embodiment, of the reproduction positions designated by the position-speed operation designating section 19, the video signals recorded in the disc-type video transmission buffer section 1 are stored in the video cassette recorder. The playback operation can be started without the access operation, and the waiting time for fast-forwarding and rewinding the tape, which has been wasted in the editing work using the tape, can be significantly shortened.

(Third Embodiment) The third embodiment relates to a digest video creating apparatus. FIG. 15 is an external view showing the external appearance of the digest video creating apparatus according to the third embodiment, and FIG. 16 is a block diagram showing the configuration of the digest video creating apparatus according to the third embodiment of the present invention. The constituent elements of the digest image creating apparatus shown in FIG. 16 have the same functions as those of the image capturing apparatus, and the same reference numerals are given to omit duplicate description. What is a digest video creation device?
It is a device that loads a video tape cassette and records a digest image in an unrecorded area at the end of the video tape cassette. The digest video is a video in which the medium parts of the recorded cuts are collected, and by reproducing this, it is possible to confirm what kind of cuts are recorded in the video tape cassette in a short time.

As shown in FIG. 16, the digest video creating apparatus includes a video cassette recorder 23, a video tape cassette 24, a disk type video storage section 25, a table of contents information detecting section 26, a recording time calculating section 27, and Control unit 2
8 and an operation panel 29. The video cassette recorder 23 is the video cassette recorder 2 shown in FIG.
It has a playhead added to it. Similarly to the recording function, the reproducing function also reproduces with the second amount of information.

The video tape cassette 24 is loaded in the video cassette recorder 23 and serves as a medium for recording and reproducing a video signal. The video tape cassette 3 is a medium for recording a video signal and a video signal recorded therein. The difference is that information corresponding to the table of contents, that is, table of contents information is recorded. Here, the table-of-contents information is information in which pairs of identification information of each cut and position information are listed. The identification information is information for identifying each cut, and the position information is information indicating which part on the recording medium on which the video information in the video tape cassette 24 is recorded is recorded. is there. The table of contents information is the information standardized in the current video tape cassette standard (VISS: Video
Since it is the cue information in the Index Search System), detailed description is omitted.

FIG. 17 is a schematic view showing the structure of the video tape cassette 24. In FIG. 17A, the video signal is recorded on the tape 1001 and the table-of-contents information is recorded on the nonvolatile semiconductor memory 1002. When recording is started, the cut number and information indicating the position of the tape where the recording is started are recorded in the nonvolatile semiconductor memory 1002 each time.

FIG. 18A shows a structure in which a non-volatile semiconductor memory is used for managing table-of-contents information. FIG. 18B shows a path on the tape on which the table of contents information is recorded.
In the example of FIG. 18B, the tape-shaped recording medium is divided into an area 1003 for recording a video signal and an area 1004 for recording table of contents information, and the image signal and the table of contents information are recorded on the same recording medium. are doing.

The disc type image storage unit 25 in FIG.
Has the same configuration as the disk-type video transmission buffer unit 1,
The video cassette recorder 2 has a disk device for storing the video signal of the second information amount output from the video cassette recorder 23, and reproduces the stored video signal from the disk device.
Output to 3. The table-of-contents information detection unit 26 detects the table-of-contents information in the video tape cassette 24 and takes out the table-of-contents information to the outside of the video tape cassette 24.

FIG. 19A shows a nonvolatile semiconductor memory 1
3 is a diagram showing a specific configuration of a table-of-contents information detection unit 26 that detects table-of-contents information stored in 002. FIG. When the video tape cassette 24 is loaded in the video cassette recorder 23, the contact 1101 pressed by the spring 1102 comes into contact with the lead wire of the nonvolatile semiconductor memory 1002 through the hole provided on the side surface of the recording unit. As a result, the table-of-contents information recorded in the non-volatile semiconductor memory 1002 provided in the video tape cassette 24 can be read.

FIG. 19B shows the tape running path 1004.
Table of contents information detection unit 2 for detecting the table of contents information stored in
FIG. FIG. 19B is a table-of-contents information detection unit in the case of detecting the table-of-contents information recorded on the same recording medium as the video signal. The table of contents information recorded in the area 1004 of FIG.
It is possible to read out the table of contents information by reproducing the data according to No. 3.

The recording time calculating unit 27 calculates how long the recording time of each cut should be. The recording time of this digest video will be described. FIG. 20 is an explanatory diagram for explaining which part of each cut the digest video is integrated into. The times T1, T2, and T3 shown in this figure are the recording times for each cut. This recording time is based on the fact that the rewinding of the tape to each cut is completed while the cut for the digest video is being reproduced from the disc in the video editing apparatus shown in the second embodiment. By calculating the length of the recording time in this way, the cut reproduction from the disc and the cut reproduction from the tape in the video editing apparatus can be performed without interruption.

To calculate the recording time, the recording time calculating unit 27 refers to the main body of each cut (reference numerals b5, b6 and b7) from the digest video area of each cut (see reference numerals b1, b2, b3 and b4). The time required to rewind the tape up to ()) is calculated based on each table of contents information extracted by the table of contents information detecting unit 26. Next, how the recording time calculation unit 27 calculates the distance A from the unrecorded area created on the video tape cassette 24 to each cut will be described with reference to the explanatory diagram of FIG. FIG. 21 is an explanatory diagram for explaining how the recording time calculator 27 calculates the recording time of each cut. In this figure, the horizontal axis represents time, and the vertical axis represents tape feeding speed. Now, in order to feed the tape to the target position separated by the distance A on the tape, the tape speed is gradually increased in the area 1201 from time 0 to T1, and the area 12 from time T1 to T2 is increased.
In 02, the tape is fed at the maximum tape feeding speed that can be performed by the video cassette recorder 23. From time T2 to T3, the speed is gradually reduced to reach the target position at time T3. The distance A from the position where the tape was initially located to the target position can be expressed by the area A of the trapezoid. The inclination of the area 1201 that determines the trapezoidal shape, the speed of the area 1202, and the inclination of the area 1203 respectively determine the acceleration performance, the maximum speed, and the tape feed of the video cassette recorder 23.
Determined by braking performance. Since these values are peculiar to the video cassette recorder 23, the recording time calculation unit 27 can know the distance A from the digest area created on the video tape cassette 24 to each cut by the table-of-contents information 906. Therefore, the time T required to reach the target from the distance A to the target
Can be uniquely obtained. That is, it is possible to calculate how long the recording time of each cut should be in the digest video.

The control unit 28 controls the processing of the digest video creating apparatus. FIG. 22 is a flowchart showing the operation of the control unit 28. The operator has finished the interview and is about to return to the studio in the vehicle for the interview. In this vehicle for coverage,
There are many videotape cassettes that were filmed during the interview. In addition, a digest video creating device is loaded in the vehicle for news gathering. An operator who is in a vehicle for news gathering takes out the video tape cassette photographed during the news gathering and inserts the taken out video tape cassette into the digest image creating apparatus. By this insertion, the digest video creating apparatus is powered on, and the digest video creating apparatus is activated.

In step T1 in FIG. 22, the control unit 2
8 first collects the table-of-contents information detected by the table-of-contents information detection unit 26. When the table-of-contents information is recorded in the nonvolatile semiconductor memory 1002 as shown in FIG. 18A, the table-of-contents information is directly read as it is. When it is recorded on the same recording medium as the video signal as shown in FIG. 18B, the reproducing position is instructed to the video cassette recorder 23 so that the table of contents information sequentially recorded in the recording unit is reproduced. Then, playback is started. When the table of contents information is read, cut identification information, position information, and recording time information are collected for each cut, so that the recording time calculation unit 27 calculates the time to be recorded for each cut.

<< Recording on Disc Type Video Storage Unit 25 >> At step T2, it is possible to know where the cut is recorded based on the table of contents information. Then, the control unit 28 causes the video cassette recorder 2 to wind the tape to the reproduction position of each cut based on the table of contents information. As soon as the position of each cut is reached by this winding, the playback operation is instructed to start. At the same time, the disk-type image storage unit 25 is instructed to start the recording operation.

{Repeat processing of steps T2, T3 and T4} At step T2, the video signal is transferred from the video cassette recorder 23 to the disk device in the disk type video storage section 25 for the time indicated by the recording time information. After the transfer, the playback operation and the recording operation are instructed to stop.
These series of operations are repeated for each cut and recorded on the video tape cassette in the disc-type image storage unit 25. Although the remaining amount decreases with this recording, the disc-side remaining amount detector 4 outputs a remaining amount signal according to this remaining amount. In step T4, it is determined whether or not there is a remaining amount. While the recording capacity is large, the process proceeds to step T3. In step T3, it is determined whether or not a cut still exists on the tape, and if there is a cut, the process proceeds to step T2. The series of steps T2, T3, and T4 are repeated, and the cut from the beginning to the end in the video tape cassette is recorded on the disc in the disc-type image storage unit 25.

During this time, it is determined in step T4 whether or not the remaining amount is sufficient, and if so, the process proceeds to step T3, and when all the cuts in the video tape cassette are reproduced in step T3, step The process moves from T3 to step T5. Similarly, when the recording capacity of the disk in the disk-type image storage unit 25 is reduced to the extent that it cannot be used (when the capacity is full), the process proceeds from step T4 to step T5.

At step T5, the video cassette recorder 23 is instructed to wind the tape up to the unrecorded area. After winding, the beginning portion of each cut recorded on the disc-type image storage unit 25 is reproduced and output to the video cassette recorder 23. The output initial portion is written back to the video tape cassette 24 loaded in the video cassette recorder 23. After writing, step T6
At, it is determined whether or not the digest video remains on the disc-type video storage unit 25. If it remains, the process proceeds to step T5 and the digest image on the disc is recorded in the video tape cassette. These steps T5 and T6 are repeated to record the digest video on the disc-type video storage unit 25 in the video tape cassette 24 in the video cassette recorder 23.

If the result of this repetition is Yes in the judgment of step T6, the process moves from step T6 to condition judgment step T7. In the condition determining step T7, it is checked whether or not there remains any cut for which the digest video has not been recorded. If it remains, the process returns to step T2, and the video tape cassette 24 is wound so as to reproduce the cut that has not been recorded on the disc. After winding, step T2
The process of step T7 is repeated to write each cut back to the unrecorded area of the video tape cassette 24. Step T
If there is no remaining in 7, the whole step is finished.

Next, how the digest video created in this way is used is shown in the flowchart of FIG.
The explanation is given with reference to The flow chart of FIG. 23 is a flow chart of processing control of the video editing apparatus.
It shows how the video editing apparatus uses the digest video created by the digest video creating apparatus according to the third embodiment.

It is assumed that the operator creates a digest video on each tape by using the digest video creating device in the vehicle and returns to the studio. Further, it is assumed that the operator loads the tape on which the digest video is created into the video editing device.
In step W1, the video editing device reads the digest video at the end of the tape to the disc. Next step W
When the operator reproduces the digest image of any cut on the disc in 2, the tape is wound to the position where the cut exists while the digest image is reproduced in step W3. As described above, since the length of the digest video is calculated based on the rewinding time to the cut, the tape is rewound to the cut while the digest video is reproduced from the disc.
In step W4, the video editing apparatus waits for completion of digest video reproduction, and when reproduction of the digest video from the disc ends, in step W5 the tape after rewinding is reproduced without inserting hair. When the tape is reproduced in this way, reproduction of the digest video from the disk and reproduction of the cut body from the tape are performed without interruption.

As described above, according to this embodiment, it is possible to generate a digest image corresponding to the table-of-contents information by exchanging the image information and record it again on the video tape cassette 24. Further, since a series of these operations are performed independently without operator intervention, it is possible to generate a digest video that can be used during editing, for example, when the tape is transported from the material destination to the studio.

(Fourth Embodiment) FIG. 24 is a schematic diagram showing a broadcasting system to which the video reproducing apparatus according to the fourth embodiment is applied, and FIG. 25 is a video of the fourth embodiment of the present invention. It is a block diagram which shows the structure of a reproducing | regenerating apparatus. In FIG. 25, those having the same functions as those in FIGS. 1 and 13 (disk-side remaining amount detecting unit 4, tape-side remaining amount detecting unit 5) are designated by the same reference numerals, and a duplicate description will be omitted. The video reproducing device is used for reproducing a video tape cassette in a broadcasting station, and the signal reproduced by the video reproducing device is broadcast through a television tower. FIG. 24 schematically shows the outline of a broadcasting system in which the video reproducing apparatus is installed in this way. As shown in FIG. 24, in the broadcasting system, a plurality of video reproducing devices are installed (reference numerals 30, 31, 32, 33, 34, 35 ... In the figure).
・), The playback output of each video playback device is the switcher 36
Is input to The switcher 36 switches the output of each video reproducing device based on the instruction of the operator, and the transmitter 37
Output to The transmitter 37 modulates the output of the video reproduction device into a broadcast signal, amplifies it, and outputs it. The television tower 38 broadcasts and outputs the broadcast signal output by the transmitter 37.

As shown in FIG. 25, the video reproducing apparatus includes a disc side remaining amount detecting section 4, a tape side remaining amount detecting section 5, a video cassette recorder 41, a disc type image sending buffer section 42, and a control section. 43 and an operation panel 44. The video cassette recorder 41 intermittently reproduces the video signal recorded in the video tape cassette 3 with the second information amount.

The disc-type video transmission buffer unit 42 has the same configuration as the disc-type video transmission buffer unit 1, but performs a reproducing operation in parallel with the recording operation to reproduce the video signal reproduced with the second information amount. It is converted into a video signal reproduced with the information amount of 1. The control unit 43 controls processing in the video reproduction device. That is, the control unit 43 receives the output signal of the tape side remaining amount detecting unit 5 and the remaining amount signal output from the disk side remaining amount detecting unit 4, and performs the process as shown in the flowchart of FIG. FIG. 26 is a flowchart showing the operation of the control unit 43.
Thereafter, the control unit 4 will be described with reference to the flowchart of FIG.
The process control of No. 3 will be described.

At step V1, when the operator inserts the video tape cassette into the video reproducing apparatus and turns on the power, the video in the video tape cassette is reproduced with the second amount of information and written on the disc. Writing to the disc is performed with the second amount of information, whereas it is performed with the first amount of information from the disc, so that images are gradually accumulated on the disc. That is, the image is broadcast and output by reading out much slower than writing to the disc.

At step V2, it is judged whether or not the video signal to be reproduced remains in the video tape cassette 3. After the execution of step V2, the process proceeds to step V5, and in step V5, it is judged from the remaining amount signal output from the disc side remaining amount detecting portion 4 whether or not the recording capacity remains in the disc type video transmission buffer portion 42. When it remains, it returns to step V1 again, and when it does not remain, it proceeds to step V6. As long as there is a margin in the remaining amount, step V1 and step V
2. A series of processes of step V5 are repeated to record an image on the disc. The video stored on the disc is read from the disc and played back. While this reproduction is being performed, video is being written to the disk device built in the disk-type video output buffer 42 in parallel.

When such reading and writing of images are repeated, the speed difference between reading and writing (reading is performed with the first information amount and writing is performed with the second information amount).
The disc is gradually filled with images. If the remaining capacity of the disk exceeds the capacity, No in Step V5 (remaining little)
Then, the process proceeds to step V6. In step V6, the disk-type video transmission buffer unit 42 is instructed to stop the recording operation and to stop the tape reproduction.

In step V7, the output signal of the tape side remaining amount detecting section 5 and the remaining amount signal output from the disk side remaining amount detecting section 4 are compared, and the remaining video signals on the tape are stored in the disc. Determine whether to cut. If both are equal in step V7 or the former is smaller than the latter, the process moves to step V1, the tape is put in the reproducing state, the disc is put in the recording state, and the recording of the image from the tape to the disc is continued, and the rest of the image on the tape is left. Minutes are recorded on the disc.

If not at step V7,
Control goes to step V8. In step V8, it is determined whether the disc is empty. If the result of the determination in step V8 is No, the process moves to step V6, and steps V6 to V
The process of 8 is repeated. This step V6 to step V8
Since the reproduction from the disc is continued while the processing of (1) is repeated, the video is output by broadcasting. Then, the area on the disc occupied by the reproduced video is released, and the recording capacity gradually increases. When all the images on the disc have been reproduced, the answer is Yes in step V8, and the process proceeds to step V1. At step V1, the tape is reproduced, the disc is put in the recording state, and the video is transferred from the tape to the disc. Step V1, Step V2,
By repeating the process of step V5, the control unit 43 transfers the video of the tape to the disk. When it is determined in step V2 that all the video in the tape has been reproduced, the process proceeds to step V3, and it is determined whether or not the repeated reproduction is preset.

If not set, the controller 43
Discharges the video tape cassette 3 to replace the video tape cassette, and starts reproduction from the beginning of the next tape. If so, rewind the videotape cassette and set playback from the beginning of the tape. After the execution of step V4 or step V8, the process proceeds to step V5, and the series of processes of step V1, step V2, and step V5 is repeated. During this repeating process, the video is continuously reproduced from the disc and the broadcast output is continued.

As described above, according to this embodiment, the reproduction operation, which has been interrupted when the video tape cassette 3 is rewound or replaced, is not interrupted because it is continued by the disk-type video transmission buffer unit. Therefore, even in situations where it is not permissible to interrupt playback such as program transmission,
The recording medium can be replaced without being bothered by the order of transfer and allocation, and the reliability and convenience in operation can be improved.

In the above embodiment, the recording and reproducing speeds of the video cassette recorder, the disc-type video transmission buffer section and the video cassette recorder were explained as being twice as fast as usual, but it goes without saying that they are not limited to twice. Further, although the disk type video transmission buffer section for performing the recording operation and the reproducing operation in parallel has been described using the disk device, the invention is not limited to the disk device, and a semiconductor memory or the like may be used. Further, the video may be compressed by a video compression technique such as MPEG.

[0120]

As described above, according to the first aspect of the present invention, the video signal photographed by the camera is temporarily stored in the disk and the video is recorded from the disk to the video tape cassette. Unless the disc is filled with video signals, there is room to replace the videotape cassette. Therefore, in the situation such as news program coverage, until the loading of the video tape cassette,
You can prevent the fact that you cannot shoot a video when exchanging. In addition, long-time shooting can be performed without interruption. Therefore, it is not necessary to prepare the same photographing system twice, and the operability of the photographing for coverage can be greatly improved.

Further, near the end of the video tape cassette, the video signals for a while from the point where the operator started recording for each cut are collected and recorded as a catalog video. The operator is not bothered to manage the recorded information. In other words, the operator can concentrate on the interview. In addition, since the process of searching for an editing point can be greatly shortened by advancing the editing based on the catalog image in the editing process following the interview, the efficiency of the editing process can be improved.

According to the second aspect of the invention, of the areas of the disc where the video signals have been written, the areas in which the video signals have been output are used for rewriting as free areas. Therefore, even if the size of the disc is small, it can be used for storing the image. According to the third aspect of the invention, since the read amount is determined according to the remaining amount of the video tape cassette, the read amount is increased when the remaining amount has a margin, and the remaining amount is slightly reduced. By gradually reducing the read amount, it is possible to realize more efficient storage on the disk.

Further, according to the invention described in claim 4, the double recording of the video information can be realized only by arranging the double head in the cylinder. Therefore, the video signal for a predetermined photographing time is recorded in the video tape cassette. be able to. In addition, claim 5
According to the invention described above, a catalog image can be created by leaving an area of a predetermined size in the area on the disc from the position where the image is written, and the catalog image can be created easily.

According to the ninth aspect of the invention, near the end of the video tape cassette, the video signals for a while from the point where the operator started recording for each cut are collected, and the digest video is displayed. Since it is recorded as, the operator is not bothered to manage the recorded information at the time of data collection. In other words, the operator can concentrate on the interview. Further, since the process of searching for an editing point can be greatly shortened by advancing the editing based on the digest video in the editing process subsequent to the interview, the efficiency of the editing process can be improved.

According to the tenth aspect of the invention, it is possible to generate a digest image by exchanging image information between the disc and the video cassette and record it again on the video tape cassette. Further, since a series of these operations are performed independently without the intervention of the operator, it is possible to generate a digest video that can be used during editing, for example, when the tape is transported from the material destination to the studio.

According to the eleventh aspect of the present invention, when the time to be reproduced is determined by the determining means, the video at the beginning of each cut is recorded only for the time on the assumption that the tape is rewound. So, while the video at the beginning is being played, rewinding to that cut is completed,
It is possible to organize digest video on the premise of editing. Therefore, the efficiency of the preparation process for editing can be improved.

According to the twelfth aspect of the invention, the reproducing operation can be started without the access operation, and the fast-forwarding of the tape occupies most of the dead time in the editing work using the tape. The waiting time for rewinding can be greatly reduced. According to the thirteenth aspect of the present invention, the reproduction operation which has been interrupted at the time of rewinding or replacement of the video tape cassette 3 in the related art is continued, so that there is no interruption. Therefore, even in the situation where reproduction is not allowed to be interrupted, such as program transmission, it is possible to replace the recording medium without being bothered by the order of transfer and allocation, and operational reliability,
It can improve convenience.

[Brief description of drawings]

FIG. 1 is an external view showing an external appearance of an image pickup apparatus according to a first embodiment.

FIG. 2 is a block diagram showing a configuration of an image pickup apparatus according to a first embodiment.

3 is a block diagram showing an internal configuration of a disk-type video transmission buffer unit 1 in FIG.

FIG. 4 is an explanatory diagram for explaining a catalog image.

FIG. 5 is a time chart of the disk-type video transmission buffer unit 1.

[Fig. 6] Fig. 6 is a schematic diagram schematically showing recording and reproduction of an image on a disc.

7 is a schematic perspective view showing a video cassette recorder 2 and a video tape cassette 3. FIG.

8 is a perspective view showing a state of a head mounted on a cylinder 406 of the video cassette recorder 2. FIG.

FIG. 9 is an explanatory diagram for explaining the dimensions of each part used by the tape-side remaining amount detection unit 5 for calculating the remaining amount of tape.

FIG. 10 is a flowchart showing processing control of the control unit 6.

FIG. 11 is an external view showing the external appearance of the video editing apparatus according to the second embodiment.

FIG. 12 is a block diagram showing a configuration of a video editing device according to a second embodiment.

FIG. 13 is an external view showing the external appearance of a position-speed operation instruction section 19.

FIG. 14 is a flowchart showing the processing control of the video editing apparatus according to the second embodiment.

FIG. 15 is an external view showing the external appearance of the digest video creating device according to the third embodiment.

FIG. 16 is a block diagram showing an internal configuration of a digest video creating device according to a third embodiment.

FIG. 17 is a schematic diagram showing an internal configuration of a video tape cassette 24.

FIG. 18A is a nonvolatile semiconductor memory 1002. (B) It is a figure which shows the path on the tape in which table-of-contents information is recorded.

FIG. 19A is a table-of-contents information detection unit 2 for detecting table-of-contents information that is unrecorded in the nonvolatile semiconductor memory 1002.
FIG. (B) is a diagram showing a table-of-contents information detection unit 26 for detecting table-of-contents information unrecorded in the path.

[Fig. 20] Fig. 20 is an explanatory diagram for describing which part of each cut in the digest video is integrated.

FIG. 21 is an explanatory diagram for explaining how a recording time calculation unit 27 calculates a recording time.

FIG. 22 is a flowchart showing the processing control of the digest video creating device according to the third embodiment.

FIG. 23 is a flowchart showing processing control showing how the video editing apparatus uses the digest video created by the digest video creating apparatus according to the third embodiment.

FIG. 24 is a diagram showing a broadcasting system to which a video reproducing device according to a fourth embodiment is applied.

FIG. 25 is a block diagram showing an internal configuration of a video reproducing device in a fourth example.

FIG. 26 is a flowchart showing the processing control of the control unit 43 according to the fourth embodiment.

FIG. 27 is a configuration diagram showing an internal configuration of a conventional video editing device.

[Explanation of symbols]

 1 disk type video transmission buffer section 2 video cassette recorder 2 video tape cassette recorder 3 video tape cassette 4 disk side remaining amount detection section 5 tape side remaining amount detection section 6 control section 9 disk device 10 release area management section 11 disk type video transmission Buffer unit 11 Input buffer 12 Output buffer 13 Control unit 14 Video cassette recorder 15 Disc type video output buffer unit 17 Master video tape cassette 18 Display 19 Speed operation instruction unit 20 Control unit 24 Video tape cassette 25 Disc type video storage unit 26 Table of contents information Detecting unit 27 Recording time calculating unit 28 Control unit 29 Operation panel 36 Switcher 37 Transmitter 38 Television tower 42 Disc type video output buffer unit 43 Control unit 44 Operation panel 50 Optical system mechanism 180 Circumference 202 Host bar S 402 tape deck 403 tape 404 loading post 406 cylinder 406 rotating cylinder 407 capstan motor 408 pinch roller 501 head 503 head 701 supply reel 702 reel 906 table of contents information 1001 tape 1002 non-volatile semiconductor memory 1101 contact 1102 spring 1103 magnetic head 1502 dial 1501 Rotary encoder 1503 Keyboard 1503 Numeric keypad

Continuation of front page (51) Int.Cl. ⁶ Identification number Internal reference number FI Technical display location G11B 27/10 A 27/17 C (72) Inventor Yasuhiro Kubo 1006 Kadoma, Kadoma-shi, Osaka Matsushita Electric Industrial Co., Ltd. In the company

Claims (13)

[Claims] Claim: What is claimed is: 1. An imaging device for temporarily storing a video signal of a video image captured by a camera in a disk device, and then recording the video image in a video tape cassette, the disk device storing a video signal of the video image captured by the camera. A video output buffering unit that has a device and collectively reads out video signals for a predetermined shooting time accumulated in the disk device as video information; a detection unit that detects the storage capacity of the disk device; A video tape cassette loaded with a disk remaining amount determination means for determining whether or not the storage capacity has reached below a predetermined standard, and a video tape cassette loaded with video information collectively read by the video output buffer means. Video recording means for recording on the tape and tape remaining amount detecting means for detecting the remaining amount of tape in the loaded video tape cassette A tape remaining amount determining means for determining whether or not the remaining amount of the tape of the video tape cassette detected by the tape remaining amount detecting means has reached a predetermined reference value or less, If it is determined that the storage capacity of the disk device has not reached the predetermined standard or less, the video output buffering means is prohibited from reading the video information, and the video recording means is arranged to eject the video tape cassette. If it is determined that the discharge control means for controlling the number of times and the tape remaining amount determination means reach the predetermined reference level or less, and the disk remaining amount determination means determines that the predetermined reference level or less is reached, a new When a video tape cassette and a new video tape cassette are loaded, a warning means for displaying a warning to the operator to load the video tape cassette into the video recording means, Photographing apparatus characterized by comprising a canceling means for canceling read prohibition by the output control means. 2. The video output buffer means includes a release area storage means for storing a release area, which is an area on the disc in which the video signal can be written in the disc device, and a release area stored in the release area storage means. The writing means for writing the video signal in the area, the reading means for reading out the video signal for a predetermined time as the aggregated video information from the area on the disc in which the video signal is written by the writing means, and the read means for reading the video signal 2. The image pickup apparatus according to claim 1, further comprising: an area management unit that stores an area on the disc as a release area in a release area storage unit. 3. The image output buffering means has a calculating means for calculating a read amount according to the remaining amount detected by the tape remaining amount detecting means, and the read means has the predetermined read amount as the predetermined read amount. The image pickup apparatus according to claim 2, wherein the video information is read from the disk device as the read amount for time. 4. The amount of information of the video information per unit time is twice the amount of information of the video signal per unit time, the video recording means includes a loading mechanism for loading a video tape cassette, and four video recordings. Cylinders with heads for 90 ° each, a winding mechanism for winding the tape of the loaded video tape cassette around the cylinder, and a winding mechanism driven at a speed corresponding to the amount of image information,
4. The photographing apparatus according to claim 3, further comprising drive control means for controlling to record the video information on the tape by using four video recording heads. 5. The photographing apparatus according to claim 4, wherein the tape remaining amount detecting means has a calculating unit for calculating the tape remaining amount T by the calculation shown in (Equation 1). [Equation 1] π: Circular ratio V: Tape feeding speed during recording in winding mechanism t: Tape thickness of video tape cassette ω1: Rotation speed of take-up reel Ro: Radius of reel hub in winding mechanism To: Unrecorded Capacity of tape in video tape cassette in state 6. The tape remaining amount detecting means detects a rotational speed of a take-up reel in a winding mechanism and a rotational speed of a supply reel in a winding mechanism, and a tape amount calculated by the formula (2). The imaging device according to claim 4, further comprising a calculation unit that calculates the remaining amount T. [Equation 2] π: Circular ratio V: Tape feed speed during recording t: Tape thickness ω2: Rotation speed of supply reel Ro: Radius of reel hub 7. The photographing device has an insertion detection means for detecting insertion of a video tape cassette into a loading mechanism, and the reading means discs when a insertion of the video tape cassette is detected by the insertion detection means. Of the video information is started, the writing means starts writing to the disc when the reading means starts reading, and the area management means outputs the video signal when the writing means of the disc starts writing. 7. The photographing apparatus according to claim 2, wherein an area having a predetermined size from the written position is stored in the release area storage means as a catalog area which is an area of a catalog image. 8. The imaging device has an operation panel for performing a recording stop operation and a recording restart operation, and the reading means starts reading image information from a disc when the recording stop operation is performed. When the video information to be read is completely read, the reading of the video information of the disc is stopped, and the writing means stops the writing to the disc when the recording stop operation is performed, and the disc is restarted when the recording restart operation is performed. Writing to the disk is resumed, and the area management unit manages an area of a predetermined size from the position where the video signal is written on the disk as the catalog area which is the area of the catalog video. The imaging device according to claim 7. 9. The read means has a read control section for reading video information from the catalog area when the remaining tape amount is judged by the remaining tape amount judging means to reach a predetermined reference level or less, and the area management When the catalog video is read, the means stores the area stored as the catalog area in the release area storage means as the release area, and the discharge control means, when the read catalog video is recorded on the tape, 9. The photographing apparatus according to claim 8, wherein after that, the video tape cassette is unloaded and the image recording means is controlled so as to eject the video tape cassette. 10. A video tape cassette comprising: a tape on which an image divided into each cut is recorded; and a storage unit for storing position information indicating where on the tape the cut is recorded. A video deck that loads and plays the video information of the loaded video tape cassette, and a winding that controls the video deck to wind the tape to the beginning position of each cut based on the position information stored in the storage unit. A rotation control means, a reproduction control means for controlling the VCR so as to reproduce the beginning portion of each cut for a predetermined time after winding, and a disk device for accumulating the reproduced cuts for the predetermined time, Repeated activation of the winding control means and the reproduction control means until each cut is completely reproduced or the disk device is filled with video information. And repeating means, the image information of the beginning of each cut is played one way,
Alternatively, when the disc is filled with video information, it controls the VCR to wind the tape into the unrecorded area,
A digest video creation apparatus comprising: a video deck and recording control means for controlling a disc so as to record all video information on the disc as a digest video in an unrecorded area. 11. The predetermined time for reproducing the beginning portion of the reproduction control means is the time required to wind from the unrecorded area of the tape in the video tape cassette to the beginning of each cut. 11. The digest video creating apparatus according to claim 10, wherein the control means has a determining means for determining the reproduction time of each cut based on the acceleration performance, the maximum speed, and the braking performance related to the tape feeding of the video deck. 12. A first video deck for loading a video tape cassette for an original tape, reproducing video information from the loaded video tape cassette, and a disk device for storing the reproduced video information. A video output buffering means for reading out the video information from the disk device, a display means for displaying the output video information frame by frame, an operation for stopping the video display displayed on the display means,
Alternatively, the operation panel is operated by the operator to move the displayed image forward or backward, and the determining means for determining the reproduction position of the image information according to the operation performed on the operation panel is determined. Determination means for determining whether or not the video information of the reproduction position is stored in the disc; and, if stored, first drive control means for controlling the disc so as to output the video information of the determined reproduction position. If it is not stored, the second drive control means for controlling the first VCR to reproduce the image information at the determined reproduction position and the video tape cassette for the master tape are loaded, and the operation of the operator is performed. A second video deck for recording the video information reproduced or output in accordance with the video tape cassette loaded therein; Location. 13. A video reproducing apparatus for reproducing video information from a video tape cassette, temporarily accumulating the reproduced video information in a disk device, and reproducing the accumulated video, wherein the video tape cassette is loaded and loaded. Image reproducing means for intermittently reproducing the image information from the video tape cassette, accumulating means for accumulating the image information reproduced in the unrecorded area of the disk device, and image information accumulated in the disk device by the accumulating means. The video output means for outputting a continuous video signal on the time axis in a small amount, and the area occupied by the capacity of the unrecorded area and the output video output by the video output means from the capacity of the entire storage area of the disk device. The storage capacity calculation means for deducting the capacity of the In the area occupied by the video information that has already been output, the control means for accumulating the video information reproduced by the video reproducing means, and the storage capacity of the disk deducted by the storage capacity calculating means fall below a predetermined standard. A disk remaining amount determining means for determining whether or not it has reached, a prohibiting means for prohibiting the reproduction of the video signal by the video reproducing means when the reference value is reached or less, and a disk device while the reproduction of the video tape cassette is prohibited. When the above video signal is output for a certain amount or more, a releasing means for releasing the prohibition of the playback of the video tape cassette, and a warning display for replacing the tape when the tape is completely played by the video playback means A video reproducing apparatus comprising a display means.