JPH06133200A - Device controller - Google Patents

Abstract

PURPOSE:To make convenient in the use of the controller because the degree of freedom of the installing location is increased by superimposing a control signal controlling an operating state of an external device during a vertical blanking period of the video signal of the controller and allowing the controller side to control the external device so as to eliminate the need of a control line. CONSTITUTION:In the system in which a main body (video signal sender side) 9 and an external device (video signal receiver side) 10 are interconnected by a video signal line, a reproduced video signal 2 of the main 9 and a mode signal 4 are inputted to a device control signal generator 1. The device control signal generator 1 receives the mode signal 4 to generate a device control signal 3 synchronized with a vertical blanking of the reproduced video signal 2, the device control signal 3 and the reproduced video signal 2 are added and the result is outputted from the main body 9. When the photographer selects the recording mode by a mode setting button, the added video signal is sent as an electric wave, and a magnetic recorder receiving the electric wave detects the device control signal superimposed on the video signal during its vertical blanking period and the operating state is changed from the recording standby state to the recording state.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording / reproducing apparatus having an external device control function.

[0002]

2. Description of the Related Art Generally, when controlling the operating state of one device from the other by two or more recording / reproducing devices, a signal line such as a video signal is connected to a control line for controlling the operation of an external device, It enables recording and reproduction of signals such as video signals while controlling.

For example, when performing editing while reproducing the main body side and recording the external device side, the operating state of the external device is controlled by recording from the main body side and control of recording waiting to record only a necessary portion. However, in the conventional technology, for example, as described in page 60 of the book “Video Recording Technology” (Kosaido Koho Publishing Co., Ltd., first edition issued June 1, 1969), the video signal Has been determined as a video signal independently of the device control signal.

[0004]

In the case of the above-mentioned apparatus for controlling the operating state of the external equipment from the main body by using the connection line, the control line is required, and the place of use is indoors or the like. It was limited.

In order to solve the above problem, by superimposing the control signal of the external device on the signal line, the control line becomes unnecessary, and the degree of freedom of use is increased, which is convenient.

[0006]

[Means for solving the problem] Main body (signal sending side)
The control signal for controlling the operation state of the external device is superposed during the V blanking period of the video signal of 1, and the external device can be controlled by the main body side.

[0007].

The above means will be described with reference to FIGS.

In the apparatus in which the main body (video signal sending side) 9 and the external device (video signal receiving side) 10 of FIG. 1 are connected by the video signal line 5, the reproduced video signal 2 and the mode signal 4 of the main body 9 are: It is input to the device control signal generator 1.
The device control signal generator 1 receives the mode signal 4 and receives the mode control signal 4 to synchronize the device control signal 3 with the V blanking of the reproduced video signal 2.
To occur. The device control signal 3 and the reproduced video signal 2 are added and output from the main body.

FIG. 2 illustrates this with a signal.
Is a V blanking period of the reproduced video signal 2, and 3 is a control signal. The signal obtained by adding both signals is 12, and this signal serves as a video signal / control signal to the external device.

The video signal output from the main body in FIG. 1 is input to the external device 10 via the video signal line 5. In the external device 10, the recording video signal 7 and the device control signal 3 are separated by the separation unit 6, and the device control signal 3 is input to the system control 8 to determine the operating state of the control signal and control the external device.

[0011]

FIG. 3 shows an embodiment of the present invention.

A vehicle 18 equipped with a camera 13 and a magnetic recording device 20 to which the present invention is applied shoots outdoors.
A system for recording at a distance will be described.

A camera 1 having a mode setting button 15 for setting the operating state (recording, recording standby) of the magnetic recording device 20 and a function for transmitting a video signal being photographed as a radio wave 16.
The subject 17 is photographed according to 3. The subject 17 is converted from a video signal into a radio wave 16 by the camera 13 and transmitted by the transmitting antenna 14, and the radio wave 16 is received by the receiving antenna 19 and is always sent to the magnetic recording device 20. At this time, the magnetic recording device 20 is in a recording standby state. When the photographer near the camera 13 selects the recording mode with the mode setting button 15 when he or she wants to record, the camera 13 transmits the video signal obtained by adding the control signal to the V blanking period of the captured video signal. 16
To send as. The magnetic recording device 20 receiving this signal by the receiving antenna 19 detects the control signal superimposed in the V blanking period of the video signal and changes its operating state from the recording standby state to the recording state. Control from the recording state to the recording standby state is also performed by the mode setting button 1 of the camera 13.
5, the photographer can control it arbitrarily.

In this way, even if there is a distance between the camera for shooting and the recording device for recording, the other can be controlled.

[0015]

By applying the present invention, when editing or the like using two recording / reproducing devices, a control line for connecting the two is not used, and an external device (signal sending side) is used in the main body (signal sending side). It is possible to control the operating state (recording, recording standby, etc.) of the receiving side).

Further, as shown in one embodiment of FIG. 3, in the case of recording a video image taken by a camera, the photographer can take a picture while moving freely with the camera, and the button of the camera that he has. As a result, it is possible to control and record the recording device at a remote position, which greatly expands the degree of freedom and convenience of the user.

[Brief description of drawings]

FIG. 1 is a block diagram of an equipment control device according to the present invention.

FIG. 2 is an explanatory diagram of control signals of the present invention.

FIG. 3 is an explanatory diagram of an embodiment according to the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Equipment control signal generator, 2 ... Reproduction video signal, 3 ... Equipment control signal, 4 ... Mode signal, 5 ... Video signal line, 6 ... Separation part, 7 ... Recording video signal, 8 ... System control, 9
… Main unit, 10… External device, 11… 2 V blanking,
12 ... video signal and control signal, 13 ... camera, 14 ... transmission antenna, 15 ... mode setting button, 16 ... radio wave, 17
… Subject, 18… Car, 19… Receiving antenna, 20…
Magnetic recording device.

Front page continued (72) Inventor Shigeaki Kanari 292 Yoshida-cho, Totsuka-ku, Yokohama-shi, Kanagawa Stock company Hitachi Image Information Systems

Claims (1)

[Claims] 1. A device capable of recording and reproducing two or more devices,
A device control device characterized in that a device for controlling an external device controls another external device by adding a signal for controlling an external device during a V blanking period of a video signal to be recorded.