JPH03108886A - Camera incorporated type vtr - Google Patents

Abstract

PURPOSE:To attain delete, revision of a title and post-recording freely by recording only a title readout command to a prescribed area of a video tape, reading title information from a title memory at reproduction and superimposing the title information onto a video signal is reproduction. CONSTITUTION:A CPU 24 outputs a title No. of a title commanded by key input and a signal representing its ON/OFF state to an encoder 26 in a prescribed timing. The encoder 26 converts an input signal into a PCM signal and records the signal onto an ID area of a tape via a recording amplifier 28, a switch 12 and a head 14. At reproduction, a video signal fed from a reproduction signal processing circuit 16 and representing a pickup pattern and the title information fed from a title controller 34 are added at a summing point 30 and the video signal superimposed with the title information is outputted via an output amplifier 38. Thus, the title is superimposed on the pickup pattern.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a camera-integrated VTR, and particularly to a title display B! The present invention relates to a camera-integrated VTR having the following functions.

[Conventional technology]

In conventional camera-integrated VTRs of this type, video information (title information) indicating the title obtained by shooting is stored in a title memory in advance, and the title information is read out from the title memory as appropriate during shooting. There is a system in which the title is superimposed on the shooting screen by superimposing it on the video signal.

[Problem to be solved by the invention]

However, with conventional camera-integrated VTRs, by pressing the title on/off button, a pre-memorized title is superimposed on the screen being shot and recorded as one video, so the title is not inserted. It was not possible to delete or change the title from the displayed screen. Also, it was not possible to add a title after shooting. There are some models that allow you to add titles to the tape you are dubbing, but in this case you must dub the tape.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a camera-integrated VTR that allows title deletion, modification, and post-recording.

[Means to solve problems]

In order to achieve the above object, the present invention includes a title memory that stores title information, an operation section that outputs a title read command for reading desired title information stored in the title memory, and a control unit that outputs a title read command for reading desired title information stored in the title memory. means for recording a title read command outputted based on an operation on the operation unit in a predetermined area of the videotape; a reading means for reading the title read command recorded in the predetermined area during playback; and the reading means. The present invention is characterized by comprising means for reading title information from the title memory based on a title read command read by the user and superimposing the read title information on the video signal being reproduced.

[Effect]

According to the present invention, only the title read command for reading desired title information from the title memory is recorded in a predetermined area of the videotape, without superimposing and recording the title on the shooting screen. I'm doing it. When the title read command recorded in the predetermined area is read during playback, title information is read from the title memory based on the read title read command, and this title information is superimposed on the video signal being played. There is.

〔Example〕

A camera-integrated VTR according to the present invention according to the attached drawings below.
A preferred embodiment will be described in detail.

FIG. 1 and FIG. 2 are block diagrams of the main parts of the camera-integrated VTR according to the present invention during index dubbing and playback, respectively.
A video camera using a video cassette is shown.

First, to briefly explain the track arrangement of the 8-city videotape, etc., as shown in FIG.
is provided with an auxiliary track for cueing, an auxiliary track for audio, and an auxiliary track for audio at its upper and lower ends, respectively, and between these tracks is provided an area for recording and reproduction by a rotating head drum.

This area consists of the area where video signals and FM audio signals are recorded (180° tape wrapping angle), and the area where the PC
It consists of an area where the M audio signal is recorded (36 degrees in tape winding angle), and a 6.8H (H
: Horizontal scanning line) PCM post-recording margin and V −
A pguard area is provided, and part of it is
(Identification) It is also considered to be used as an ID area for recording information.

Now, in FIG. 1, when the index dubbing mode is selected by the mode selection switch (not shown),
The switch 12 is alternately switched by a predetermined switching pulse, and the video system is set to the playback mode, and the index information (here, title read command) recorded in the ID area of the tape 10 (see Figure 4) is set to the record mode. Become.

As a result, the video signal recorded on the tape 10 is applied to the playback signal processing circuit 18 via the head 14, the switch 12, and the preamplifier 16, where it is demodulated into an NTSC video signal, and then sent to the output amplifier 20. output via Images can be played back by inputting this video output to a television.

If you want to add a desired title to the reproduced image,
A title read command (title list and its 0
A signal indicating N10FF) is input to the central processing unit (CPU) 24 by operating the operation key 22. C.P.
The U 24 outputs a signal indicating the title of the title commanded by this key manually and its ON10 FF to the encoder 26 at a predetermined timing, and the encoder 26 converts the input signal into a PCM signal and sends it to the recording amplifier 28 and the switch 12. Then, the information is recorded in the ID area of the tape via the head 14.

In this way, index dubbing mode allows
A title read command is recorded in the ID area of the tape 10. It goes without saying that the title read command can be recorded not only during dubbing but also during shooting.

Next, a case will be described in which an image is reproduced from a tape on which a title read command is recorded as described above.

In FIG. 2, during reproduction, the signal recorded on the tape 1O is applied to the reproduction signal processing circuit 18 and decoder 40 via the head 14 and preamplifier 16. The reproduced signal processing circuit 18 demodulates the NTSC video signal from the input signal and outputs it to the addition point 30.

On the other hand, the decoder 32 detects a title read command from a human input signal, and the decoder 32 detects a title read command (P
CM signal) is converted into a signal indicating the title Nα and its 0N10FF and output to the CPU 24. The CPU 24 outputs a control signal to a title controller 34 that controls the reading of title information from the title memory 36 based on the signal input from the decoder 32. The title information stored corresponding to Nα is read out and outputted to the addition point 30. The title memory 36 stores video signals (title information) obtained by photographing handwritten characters, illustrations, etc. in advance and binarizing them for several pages in correspondence with the title Nα.

An addition point 30 is a video signal indicating a shooting screen added from the playback signal processing circuit 16 and a title controller 34.
The video signal on which the title information is superimposed is output via the output amplifier 38.

This allows the title to be superimposed on the shooting screen.

Figure 3 shows the title N11 (Tl, T2, T3) and its ON10 in the index dubbing mode shown in Figure 1.
FIG. 2 is a schematic diagram showing the relationship between a tape 10 on which information indicating FF is recorded and a title screen obtained by reproducing the tape 10. FIG.

In this embodiment, a title RAM capable of storing arbitrary title information is used as the title memory, but a title ROM in which predetermined characters, etc. are stored may also be used. . Also,
The method for recording the title read command on the tape is not limited to this embodiment, but may be appropriately recorded in a predetermined ID area of a tape format standardized according to the type of VTR.

〔Effect of the invention〕

As explained above, according to the camera-integrated VTR according to the present invention, it is possible to insert a title on the shooting screen, delete or change the already inserted title, and also make it possible to post-record the title without dubbing or the like. can do.

[Brief explanation of drawings]

1 and 2 are block diagrams of the main parts of the camera-integrated VTR according to the present invention during index dubbing and playback, respectively, and FIG. 3 shows a tape on which a title read command is recorded and playback of the tape according to the present invention. A schematic diagram showing the relationship with the title screen obtained by
FIG. 1 is a diagram showing a track recording of one videotape. 10...Video tape, 12...Switch,
14...Magnetic head, 22...Operation key 2
4... Central processing unit (CPU), 26... Encoder, 30... Addition point, 32... Decoder,
34...Title controller, 36...
title memory.

Claims (1)

[Claims] A title memory that stores title information; an operation section that outputs a title read command for reading out desired title information stored in the title memory; means for recording a title read command output based on an operation in a predetermined area of a videotape; a reading means for reading the title read command recorded in the predetermined area during playback; and a title read by the reading means. A camera-integrated VTR comprising: means for reading title information from the title memory based on a command and superimposing the read title information on a video signal being played.