JPH05110947A - Superimpose confirming circuit for magnetic recording and reproducing device - Google Patents

Abstract

(57) [Summary] [Object] The present invention relates to a superimposing circuit of a magnetic recording / reproducing apparatus, and particularly to provide a method of easily selecting an image desired to be used from a plurality of images and performing superimposing. To achieve the above object, a video signal from a camera and a video signal from a storage device are provided in addition to the recording path.
Means for displaying as a parent screen and a child screen (6
0) is provided so that the title image can be arbitrarily selected and confirmed, and then superimposed. [Effect] Since the video signal from the camera and the superimpose signal are displayed on the display screens other than the recording path as the parent screen and the child screen, the signals can be confirmed regardless of whether recording has been performed, and after confirmation, recording Because it can, it does not malfunction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a superimpose confirmation circuit system in a magnetic recording / reproducing apparatus.

[0002]

2. Description of the Related Art A conventional device is disclosed in Japanese Patent Laid-Open No. 63-17257.
As described in No. 7, titles captured by the image scanner were superimposed on the screen.

[0003]

In the above-mentioned prior art, video signals such as titles are superimposed and recorded on the screen. However, a plurality of titles are arbitrarily selected and superimposed. No consideration was given to the points, and there was a problem that the camera operation had to be stopped each time when selecting.

An object of the present invention is to enable superimposing after arbitrarily selecting and confirming a title image while continuing to shoot with a camera.

[0005]

In order to achieve the above object, means for displaying a video signal from a camera and a video signal from a storage device in addition to the recording path as a parent screen and a child screen are provided, and the title image is displayed. After selecting and confirming, you can superimpose.

[0006]

[Function] Since the video signal from the camera and the superimpose signal are displayed as a parent screen and a child screen on the display screen provided outside the recording path, the signal can be confirmed regardless of whether or not recording is performed, and after confirmation, recording is performed. Because it can, it does not malfunction.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG. In FIG. 1, 1 is the body of the VTR with a built-in camera, and 2
Is a lens barrel including a camera lens, 3 is an image scanner sensor, 4 is a processing circuit for converting a signal from the sensor into a video signal, 5 is an adder for adding a camera video signal and a title signal, and 6 is a recording signal of the video signal A video processing circuit for converting into a recording amplifier, 7 a recording amplifier, 8 a video memory for storing a title signal from a camera, 9 a magnetic head, 10 a magnetic medium, 11 a microphone, 12 an audio amplifier, 13 an audio signal and a title sound , 14 is an audio processing circuit for converting an audio signal into a recording signal, 15 is a recording amplifier, 16 is an audio memory for storing a title sound, 17 is a magnetic head, 31 is a video signal output terminal, and 60 is Adder 5
Of the output signal and the title image from the memory 8 as a parent screen and a child screen (hereinafter referred to as picture in picture, abbreviated as PinP), 33 is the title image from the memory 8 input to the adder 5? A selection switch for whether or not, 37 is a control signal input terminal of the switch 33, 53 is an address selection control terminal for selectively outputting the information stored in the memory 8, 34 is an output terminal of an audio signal,
Reference numeral 35 denotes an adder for adding the output signal of the adder 13 and the output signal of the memory 16, 36 denotes a switch for selecting whether to input the title sound from the memory 16 to the adder 13, 38
Is a control signal input terminal of the switch 36, and 54 is a memory 16
Is an address selection control terminal for selectively outputting the information stored in.

The feature of FIG. 1 is that the PinP for confirming the title image is provided separately from the recording path, so that the title image can be confirmed on the child screen without stopping the operation during photographing. is there.

The image taken by the lens 2 and the sensor 3 is
It is converted into a video signal by the camera processing circuit. On the other hand, the image to be titled in advance is similarly converted into a video signal and stored in the video memory 8. When it is desired to superimpose a title image during shooting, the adder 5 adds the video signal and the title signal read from the video memory 8,
Recording is performed on the magnetic medium 10 via the video processing circuit 6, the recording amplifier 7, and the magnetic head 9. As described above, it is possible to superimpose and record a title image during shooting.

On the other hand, the voice signal is input to the adder 13 via the microphone 11 and the voice amplifier 12. In addition, the sound to be titled is also stored in the voice memory 16 in advance. When it is desired to superimpose the title sound during shooting, the audio signal and the title sound read from the audio memory 16 are added by the adder 13, and the audio processing circuit 14, the recording amplifier 15, and the magnetic head 17 are used. It records on the magnetic medium 10.

When a plurality of title image information is stored in the video memory 8, the output signal of the memory 8 is sequentially or randomly selected by the control signal from the selection terminal 53 and output. The output signal is output from the video signal output terminal 31 as a sub-screen of the video signal being captured by the PinP 60. The PinP 60 is provided separately from the recording path. Therefore, by monitoring the video signal of the video signal output terminal 31, the title image output from the video memory 8 can be arbitrarily confirmed regardless of the recording operation. In a scene where it is desired to superimpose a title image during shooting, the switch 33 is turned on by a signal from the control signal input terminal 37, the title image from the memory 8 and the video signal during shooting are added by the adder 5, and the video is added. Processing circuit 6,
Recording is performed on the magnetic medium 10 via the recording amplifier 7 and the head 9.

On the other hand, the audio memory 16 and the audio output terminal 3
4, the adder 35, the switch 36, the control terminal 38, and the selection terminal 54 also perform the same operation as the superimposing processing of the title image, and arbitrarily confirm the audio title during shooting,
You can superimpose when you want.

According to the present embodiment, when a plurality of title information is stored in the memory, the title image and voice to be superimposed can be arbitrarily selected and confirmed without stopping the recording operation during photographing. It is possible to superimpose the title picture and voice in a speedy manner when superimposing is desired, thus improving usability.

In FIG. 1, the input signals to the video memory 8 and the audio memory 16 may be signals from a camera and a microphone, respectively. Alternatively, the main body 1 may be provided with video and audio input terminals to serve as the input signals. it can. Alternatively, it may be a signal from a ROM stored in advance. Also,
The video memory 8 and the audio memory 16 can be provided outside the main body 1.

FIG. 2 shows a specific circuit of the PinP60.

Reference numeral 61 denotes the separation of the horizontal synchronizing signal of the parent signal and A
SYNC. Which generates a pseudo horizontal synchronizing signal by FC. G
EN. , 62 automatically match the color levels of the parent signal and the child signal, and the color difference signals RY, BY from the child screen to NT
An ACC that generates a two-phase clock that is phase-locked to a master screen burst signal necessary for encoding into an SC signal,
APC, 63 is a color difference signal R-
A decoder for demodulating into Y, BY (and G-Y), 64 is an ACC for performing color level adjustment and demodulation clock generation,
APC, 65 is a switch circuit provided so that one A / D converter can process the luminance signal Y and color difference signals RY, BY for analog-digital conversion, and 66 is an analog-digital converter. , 67 is an encoder for converting the luminance and color difference signals of the child screen into an NTSC signal, and 68 is a SYNC. Which performs separation of the horizontal synchronizing signal of the child screen and generation of a pseudo horizontal synchronizing signal by AFC. GEN. , 69 and 70 are the same as SYNC. GEN. A clock signal generator 71 that is reset by the AFC output of is a DRAM that can read and write asynchronously.

The PinP system shown in FIG. 2 demodulates a video signal into a luminance signal and a color difference signal, digitizes them by A / D conversion, performs appropriate sampling, stores them as time series data in a memory, and synchronizes them with the main screen. Then, the time axis compression is performed by reading with a high-speed clock, and the encoder converts the luminance and color difference signals of the sub-screen into NTSC signals.
The child screen is inserted into the parent screen by switching the switch.

FIG. 3 shows another embodiment of the present invention. In FIG. 3, 39 is a confirmation switch provided between the video memory 8 and the adder 32, and 40 is the audio memory 16 and the adder 35.
A confirmation switch provided between the switch and 41 is a control signal input terminal for controlling the switch, and the others are the same as those in FIG.

The feature of FIG. 3 is that switches 39 and 40, an adder 32 and a control terminal 41 are added to FIG.

According to this embodiment, normally the switch 39,
Turn off 40, turn it on only when you want to check the title image and sound, stop the function of the PinP circuit by a control signal, and check the title image screen on the actually recorded screen instead of the sub screen. Therefore, there is an effect that usability is further improved.

FIG. 4 shows another embodiment of the present invention. In FIG. 4, 51 is an output terminal for an electronic viewfinder (abbreviated as EVF) provided separately from the video signal output terminal 31, 52 is an output terminal for an earphone provided separately from the audio signal output terminal 34, and others are shown in FIG. 1, the same as FIG.

The feature of FIG. 4 is that an EVF output terminal 51 and an earphone output terminal 52 are provided separately from the video signal output terminal 31 and the audio signal output terminal 34, respectively.

The title image from the video memory 8 is input to the adder 32 via the switch 39. On the other hand, the video signal during shooting output from the camera processing circuit 4 is input to the adder 32, added to the title image, and then output from the EVF output terminal 51. However, the control signal Pin
The P function stops.

On the other hand, the title image from the video memory 8 is input to the adder 5 via the switch 33, added with the video signal from the camera processing circuit 4, and the video signal output terminal 3
1 and the video signal processing circuit 6, the video signal to be recorded on the magnetic medium 10 is output to the video signal output terminal 31, and the title image is arbitrarily superimposed on the EVF output terminal 51. Video signal is output.

On the other hand, the audio signal output terminal 34 and the earphone output terminal 52 also perform the same operation as the above-mentioned superimposing processing of the title image, and the audio title can be arbitrarily output from the earphone output terminal 52 during shooting. ..

According to this embodiment, the EVF output terminal 5
1. By providing the earphone output terminal 52, it is possible to arbitrarily and selectively confirm the title image and the voice during shooting, which has the effect of further improving usability.

FIG. 5 shows another embodiment of the present invention. The feature of FIG. 5 is that the inputs of the adders 32 and 35 are the same signals as the video signal output terminal 31 and the audio signal output terminal 34, respectively. The operation is the same as in FIG. 5, and the description is omitted.

[0028]

According to the present invention, a Pi that simultaneously displays the video signal of the main body and the superimpose signal in addition to the recording path.
Since it has an nP function, you can check multiple titles without stopping the camera, and you can record after checking, so there is no malfunction.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention.

FIG. 2 is a specific block diagram of PinP of FIG.

FIG. 3 is a block diagram showing another embodiment of the present invention.

FIG. 4 is a block diagram showing another embodiment of the present invention.

FIG. 5 is a block diagram showing another embodiment of the present invention.

[Explanation of symbols]

 1 ... Camera integrated VTR, 2 ... Lens barrel including camera lens, 3 ... Image scanner sensor, 4 ... Camera processing circuit, 5 ... Adder, 8 ... Video memory, 60 ... Picture in picture circuit.

Claims (1)

[Claims] 1. A magnetic recording / reproducing apparatus comprising means for storing an image to be superimposed, and means for adding a video signal from the storage means to a video signal of the magnetic recording / reproducing apparatus. A means for displaying the video signal of the device and the video signal of the storage device as a parent screen and a sub-screen, respectively, is provided, and means for confirming the video signal of the storage device while watching the video signal of the magnetic recording and reproducing device is provided. A superimpose confirmation circuit in a magnetic recording and reproducing device characterized by.