JPH04119547A - Magnetic recording and reproducing device - Google Patents

Abstract

PURPOSE:To immediately enable clear consecutive photographing by providing a photographing start signal generating means, VTR operation control means, memory means for video and audio signals and capstan servo means. CONSTITUTION:According to a signal 11 of a photographing start signal generating means 3, a VTR operation control means 2 immediately starts the write operation of a memory means 21 and the operation of a servo means 7 and starts tape traveling after the operation of the servo means 7 is turned to a normal state, and next, the contents of the memory are read out and recorded. Thus, since the video and audio signals are stored by using the memory after the time of pushing a camera trigger switch and the stored contents of the memory are read out and recorded after the capstan servo starts the normal operation, immediate photographing without picture disturbance is enabled.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a magnetic recording and reproducing device used in a camera-integrated VTR.

BACKGROUND OF THE INVENTION In recent years, camera-integrated VTRs have become more compact, and their uses have become more diverse.

FIG. 3 is a block diagram of a conventional camera-integrated VTR. 1 is a camera-integrated VTR, and its configuration will be explained below.

Reference numeral 2 denotes a VTR control circuit which controls the VTR as a whole, including controlling the VTR safety protection operation in the event of an abnormality and controlling switching between various modes of the VTR. 3 is a camera trigger switch which generates a camera trigger signal 11 and switches the VTR between recording mode and recording-time stop mode. 4 is the camera section, video signal 1
2 and an audio signal 13 are sent to a video circuit 5 and an audio circuit 6, respectively. Servo circuit 7 is V T
According to the servo control signal 14 sent from the Rft1l control circuit 2, 15 capstan control signals 15 are supplied to the capstan 8 to control the capstan servo.

Video head9. Through the audio head 10, the video signal 12. The audio signal 13 is recorded on the tape by the video circuit 5 and the audio circuit 6 while the video recording operation signal 16 and the audio recording operation signal 17 are being output.

In the conventional VTR configured as described above,
Record by pressing the camera trigger switch 3.
When transitioning from the stop mode to the recording mode, the circuit of the capstan 8 is started up, and then the actual recording mode is entered and recording is started.

Problems to be Solved by the Invention In such a conventional camera-integrated VTR, when performing continuous shooting, the capstan servo is started up to a normal state before recording, so it takes a long time to successfully perform continuous shooting without disturbing the image. There was a problem in that the required time was long and immediate photography was not possible.

The present invention solves the above-mentioned problem, and aims to provide a magnetic recording/reproducing device that can immediately take a clear continuous shot.

Means for Solving the Problems In order to achieve the above object, the present invention includes a photographing start signal generating means, a VTR operation control means, a video and audio signal memory means, a capstan servo means, and a VTR operation control means. Immediately starts the writing operation of the memo 1 means and the operation of the servo means by the signal from the photographing start signal generating means, starts tape running after the operation of the servo means reaches a steady state, and then reads and records the contents of the memory. It is arranged in

Operation The present invention is arranged so that the signals written in the memory means are read out and recorded after the servo is stabilized by the above-described configuration, so that it is possible to prevent disturbances in the continuous shot screen.

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

FIG. 1 is a block diagram of a camera-integrated VTR using a magnetic recording/reproducing apparatus according to an embodiment of the present invention. 1 is a camera-integrated VTR, and its configuration will be explained below.

2 controls the VTR as a whole, including controlling the VTR safety protection operation in the event of an abnormality in the VTR circuit circuit and controlling switching between the various modes of the VTR. 3 is a camera trigger switch which generates a camera trigger signal 11 and switches the VTR between recording mode and recording-time stop mode. 4 is the camera section, video signal 1
2 and the audio signal 13 to the video circuit 5.2 and the audio signal 13, respectively.
The signal is sent to the audio circuit 6. 7 servo circuit is VTR
According to the servo control signal 14 output from the control circuit 2,
supplying a capstan control signal 15 to the capstan 8;
Control the capstan servo. Video head9. Through the audio head 10, the video signal 12. The audio signal 13 is a video recording operation signal 19. While the audio recording operation signal 20 is being output, the video circuit 5. It is recorded on tape by the audio circuit 6.

The operation of this embodiment configured as described above will be explained below using the timing chart of FIG. 2. When the pulse of the camera trigger signal 11 is output, the VTR control circuit 2 sends the memory control signal 18 to the memory 21. The memory 21 receives this memory control signal 18 and stores the video signal 12 and audio signal 13, and when the VTR actually records, the stored signals are used as the video recording signal 16.
．． As audio recording signals 17, video circuits 5. It is supplied from the audio circuit 6 to each head. Video circuit 5. The audio circuit 6 is connected to the camera trigger switch 3
Recording starts from the signal immediately after is pressed. The video recording operation signal 19 and the audio recording operation signal 20 are supplied after the capstan servo control reaches a steady state.

As described above, according to the magnetic recording/reproducing device of the embodiment of the present invention, the video and audio signals from the time when the camera trigger switch is pressed are stored using the memory, and the video and audio signals are stored after the capstan servo enters normal operation. Since it is arranged to read and record the contents of the memory, it is possible to take instant pictures without screen disturbance.

Effects of the Invention As is clear from the above embodiments, according to the present invention, the video and audio signals from the moment the camera trigger switch is pressed are stored in the memory device, and the capstan servo reaches a normal operating state. To provide a magnetic recording and reproducing device that realizes a camera-integrated VTR that can take instant shots without disturbing the continuous shooting screen because the tape is later run and the contents of the memory device are sequentially read out and recorded. can.

[Brief explanation of the drawing]

Fig. 1 is a block diagram of a camera-integrated VTR using a magnetic recording/reproducing device according to an embodiment of the present invention, Fig. 2 is a timing chart during continuous shooting, and Fig. 3 is a block diagram of a conventional camera-integrated VTR. It is. 2... VTR control circuit, 3... Camera trigger switch, 7... Servo circuit, 8...
... Capstan, 11 ... Camera trigger signal, 18 ... Memory control signal, 19 ...
-Video recording operation signal, 20...Audio recording operation signal, 21...Memory. Agent's name: Patent attorney Haruaki Ogata and two others. Conflict 19 Mimi Gai 5 Ibi'te'ki Announcement?
Boo ni - ni ~ one 11"("='+ Jimori

Claims (1)

[Claims] It includes a photographing start signal generation means, a VTR operation control means, a memory means for video and audio signals, and a capstan servo means, and the VTR operation control means immediately performs a write operation on the memory means in response to a signal from the photographing start signal generation means. and starts the operation of the servo means, starts tape running after the operation of the servo means reaches a steady state, and then reads and records the contents of the memory.