JPH0273587A - Video tape recorder - Google Patents

Abstract

PURPOSE:To reduce the mistake of misinputting a program searching count value in its frequency and to reduce the number of times of pressing a button so as to easily use the subject recorder by storing a desired scene from a video recorded in a video tape into a digital memory and enabling the program searching by a looking at it. CONSTITUTION:When the button A is pressed during reproducing or recording, the count value 6 to be sent from a program searching circuit 27 is kept by a microcomputer 24 in its inner memory, and a storage instruction is sent to the digital memory 23. A video signal 1 at this time is stored in the memory 23. This is repeated to store plural video desired for program searching. When the button B is pressed, a video reproducing instruction 3 is issued by the microcomputer 24, and a presently inputted signal is superposed by the memory 23 to its memory and outputted to a TV reproducing device, whereas character information 5 to be outputted from the microcomputer 24 is also superposed to the video signal by the memory 23. When one of selecting buttons 1-4 is pressed looking at the reproducing screen, a video reproducing completion instruction 3 and a character information erasing instruction 4 are sent to the memory 23 to erase the superposed characters and video signal.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to the editing of video signals recorded on video tape,
The present invention relates to a video tape recorder having a video signal cueing function particularly suitable for repeated playback, etc.

[Conventional technology]

In conventional video tape recorders, by specifying a count value of the video tape, the video tape is run until the count value is reached, and the beginning of the video is found. For example, in a linear time counter, by setting the time from the video tape winding start position or the time from the current tape position, the video tape is fast forwarded or rewound to the position corresponding to the set time. This was to cue the video recorded on the videotape after the above-mentioned set time.

[Problem to be solved by the invention]

In the above-mentioned conventional technology, it is impossible to determine whether or not the video is actually the video that is requested until the specified count value or after the specified time is found and the video recorded there is checked. There was a problem.

In video editing, repeated playback, etc., before fast-forwarding or rewinding a videotape to find the beginning of a video, the present invention allows the video recorded at the tape position to be found to be the desired video. An object of the present invention is to provide a video tape recorder that can determine in advance whether L3 is the same.

[Means to solve the problem]

The above target uses a digital memory circuit to store in advance a part of each video signal (for example, the first frame or one field) to be cued sequentially in each part of the digital memory during playback or recording. When searching for the beginning, read each of the above video signals (one video signal) from the digital memory, display each video on the television playback device, and check each video as you need it. This is achieved by selecting a video and cueing the video.

[For production]

During video playback or recording, each time you find a video you want to cue later, by pressing the memory button, the digital memory sequentially stores those multiple video signals in a predetermined memory area of the digital memory. Store the count value of each video.

After the playback or recording is finished, when the user wants to retrieve the video stored in the digital memory, by pressing the memory recall button, the video in the digital memory is superimposed on the television signal and displayed on the television playback device 5.

When you press the selection button to select the video you want to cue while watching this displayed video, the count value for that video is stored, so that value is sent to the conventional cueing function section and starts the cueing operation. Start.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of a video tape recorder according to the present invention, in which 1 is a video signal, 2 is a video storage command, 3 is a video playback command/■ Playback end command, and 4 is a text information deletion command. , 5 is character information, 6 is a count value, 7 is a cue count value, 8 is CTL or reel pulse, 9 is a fast forward command, 10 is a rewind command, 11 is a playback command, 21
2 is a cylinder head, 22 is a video circuit, 23 is a digital memory circuit, 24 is a microcomputer, 25 is a mechanism, 26 is a servo circuit, and 27 is a cue circuit.

In the figure, when memory button A is pressed during playback or recording, the microcomputer 24 stores the count value 6 constantly sent from the cue circuit 27 in the internal memory, and also sends the digital memory circuit 23 to the video memory. Send command 2.

When the digital memory circuit 23 receives this command, it stores the video signal 1 at this time in the memory. By repeating this operation, it is possible to store a plurality of videos to which you want to cue in the memory.

Next, when memory recall button B is pressed, the microcomputer 24
detects this and transfers the image +j to the digital memory circuit 2:3.
j Life all instructions will be sent. The digital memory circuit 23 receives this, superimposes the video signal stored in the memory on the currently input video signal, and outputs it to the television playback device. At this time, the character information 5 output from the microcomputer 24 is also superimposed on the video signal by the digital memory circuit 23.

FIG. 2 is a diagram showing an image of the television playback device when the cueing function is selected when the memory recall button B is pressed, and text information 5 is displayed on the left side of the screen superimposed on the television signal. On the right side, a plurality of images are displayed, and on the left side of these images, selection numbers 1, 2, and 3, which are part of the text information 5, are attached in order to select which image to cue.

When any of the 1 selection buttons 1, 2, 3, or 4 is pressed while viewing the television playback screen shown in FIG. A text information deletion command 4 is transmitted to erase the superimposed text information and video signal.

In the process of selection button 1, the count value when memory button A was pressed for the first time is transmitted to cue circuit 27.

This is the case when video 1 shown in FIG. 2 is cued. The processing for selection buttons 2 and 3 is similar, and the count value when memory button A is pressed for the second and third time is transmitted.

The cueing circuit 27 compares the current count value 6 and the received count value 7, and instructs the servo circuit 26 to fast-forward or rewind the video tape 9, and outputs a CTL or reel pulse 8 from the mechanism 25. While updating the count value based on the value, it is monitored to see if it matches the received number. When the count values match, a reproduction command 11 is transmitted to the servo circuit 26.

The process of selection button 4 executes the process of selection button 1 for 10 seconds,
Similar processing is performed in sequence when selection buttons 2 and 3 are selected. That is, after the cue playback of videos 1 and 2 shown in FIG. 2 is performed for 10 seconds each, the cue playback of video 3 is performed.

FIG. 3 is a schematic flowchart of the processing performed by the microcomputer 24 in the video cue processing described above.

When the memory button is pressed during playback or recording, the count value of the videotape at that time is stored in each memory, and the video at that time is stored.

Next, when memory recall button B is pressed, the video stored in the memory is played back on the television playback device, and while looking at the screen of the television playback device, press the selection button 1/2 corresponding to the video you want to cue. Press either /3/4 to
By performing processing according to the button, you can only find the beginning of the video you need.

In the present invention, 'C' is configured so that the cueing video can be selected from among three as shown in FIG. You can.

Also, the memory button A is not provided separately;
For example, it can also be used as a frame advance button during 12-screen multi-sampling play on a digital VTR. A conventional memory recall button can also be used as memory recall button B.

〔Effect of the invention〕

As explained above, according to the present invention, a desired scene from images recorded on a videotape can be stored in a digital memory and cueing can be performed while viewing it, so that incorrect cueing count values can be input. There are fewer operational errors, and the number of button operations is reduced compared to the conventional method, improving usability.

In addition, by changing the microcomputer software while keeping the basic configuration of the present invention, not only the cueing function but also
Editing functions can also be implemented. Furthermore, in the prior art, VIS
A circuit for S/VASS was required, but in the present invention,
Since these circuits are not required, it is possible to provide a video tape recorder with excellent functions without the drawbacks of the prior art described above.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of a video tape recorder according to the present invention, FIG. 2 is a diagram showing an embodiment of a reproduced image of a television playback device when the cueing function is selected, and FIG. 3 is a block diagram showing an embodiment of the microcomputer 24. This is a schematic flowchart of the processing being carried out. 1...Video signal, 2...Video storage instruction, 3...Video playback instruction/Wi-cho-cho page bottom 7.4...Text information deletion instruction, 5...Text information, 6...Count value , 7... Cue count value, 8... CT L or reel pulse,
9. Fast forward command, 10. Rewind command, ]-1.. Reproduction command, 23.. Digital memory circuit, 24.. Microcomputer, 26.. Servo circuit, 27.. Cue circuit. Complete / Part 20

Claims (1)

[Claims] 1. In a video tape recorder equipped with a digital memory for storing a plurality of video signals, a selection means for selecting any one video signal from the video signals being played back from the video tape;
means for storing one or more selected video signals in the digital memory; means for storing a tape count value corresponding to each video signal; and storage processing for the video signal and its tape count value. a means for reproducing one or more of the one video signals stored in the digital memory; a means for selecting one of the reproduced one video signals; and means for reproducing the tape count value stored in the video tape and moving the video tape to the tape position specified by the tape count value, the video tape being moved to the beginning of the recorded video signal of the selected one video signal. A video tape recorder characterized in that it is configured to perform recording.