JPS62200987A - Recorder integrated with camera - Google Patents

Abstract

PURPOSE:To effectively prevent an unnecessary electric wave from radiating externally through a connected cable by controlling the titled recorder so as to supply no power to a camera circuit at the time of an operation mode for connecting the connection cable to a recorder integrated with camera. CONSTITUTION:There are provided recording means 4, 5 for recording an image pickup video signal VDCA obtained from the camera circuit 2, a switch means 15 for turning on and off and controlling a power source to the camera circuit 2 and a power source control means 22 for turning off the switch means 15 when the connection cable 11 is connected to an external connection connector 10. The camera integrated recorder 1 generally operates to generate the image pickup video signal VDCA by supplying a power source output PW to the camera circuit 2 through the switch means 15. In this state, when the connection cable is connected to the external connection connector 10, by turning off the switch means 15 by the power source control means 22, thereby, no power is supplied to the camera circuit 2 by the control.

Description

DETAILED DESCRIPTION OF THE INVENTION A. Field of Industrial Application The present invention relates to a camera-integrated recording device, and is particularly suitable for application to a device having a camera using a solid-state image pickup device as an image pickup means.

B. Summary of the Invention The present invention provides a camera-integrated recording device having a built-in camera circuit including a camera having a solid-state image pickup device as an imaging means, which supplies power to the camera circuit during an operation mode in which a cable is connected from the outside. By preventing unnecessary radio waves from being radiated through the cable connected from the outside, this can be effectively prevented.

C. Prior Art Conventionally, this type of camera-integrated recording device uses a solid-state image sensor, such as a C9CD (charge coupled
l obtained by a camera circuit equipped with a device) element
2. Description of the Related Art A so-called electronic still camera has been proposed in which a frame worth of video signals is recorded on a recording device having a magnetic floppy disk.

In this case, the camera circuit is a CCD on which the object to be imaged is mapped.
In order to drive each CCD element of the array and extract a video signal, a drive pulse with a fairly high frequency is used, and a drive signal of, for example, about 800 (MHz) is used, depending on the number of pixels.

D Problems to be Solved by the Invention As the camera circuit generates extremely high drive signals, there is a risk of radiating unnecessary radio waves to the outside of the camera-integrated recording device. There is a risk that you will not be satisfied. Incidentally, the drive signal generated in the camera circuit is set to have a relatively large amplitude in order to operate the CCD element reliably. If a connector is provided to receive the supply, there is a great possibility that unnecessary radio wave radiation will occur from the cable connected to the connector.

The present invention has been made in consideration of the above points, and provides a camera-integrated recording device that can effectively avoid the possibility of unnecessary radio wave radiation being generated to the outside based on the drive signal used in the camera circuit. This is what I am trying to propose.

E Means for Solving the Problem In order to solve this problem, the present invention provides a camera-integrated recording device 1 having a camera circuit 2 using a solid-state image sensor as an imaging means. recording means 4.5 for recording the video signal VDca;
A switch means 15 for controlling the power supply to the camera circuit 2 on and off, and a connection cable 11 connected to an external connection connector lO
A power supply control means 22 is provided which turns off the switch means 15 when connected to the power source.

1. The camera-integrated recording device 1 normally has a switch means 15.
By supplying the power supply output pw to the camera circuit 2 via the camera circuit 2, the camera circuit 2 is placed in an operating state for generating a damaged video signal vDcA.

In this state, when the connection cable 11 is connected to the external connection connector 1o, the power supply control means 22 turns off the switch means 15 to control the camera circuit 2 so as not to supply power.

In this way, when the camera-integrated recording device 1 enters an operation mode in which the connection cable 11 is connected from the outside, the camera circuit 2 is controlled not to be supplied with power, so that the connected cable It is possible to effectively prevent unnecessary radio waves from being radiated from 11 to the outside.

G example An embodiment of the present invention will be described in detail below with reference to the drawings.

In the figure, reference numeral 1 indicates a camera-integrated recording device, in which a switching circuit 3 transfers a video signal VDCA consisting of a luminance signal Y and color difference signals R-Y and B-Y from a camera circuit 2 including a solid-state image pickup device, for example, a CCD device. is supplied to the video circuit 4 through one signal input terminal a, and in the video circuit 4, a recording signal RD obtained by FM modulating, for example, a carrier signal with a video signal VDcA is sent to a video recording device f5 having a magnetic floppy recording device configuration, for example. It is designed to supply

The other signal input terminal of the switching circuit 3 is connected to the video input terminal d of the external connection connector 10, and the cable connection connector 12 of the connection cable 11 is connected to this external connection connector IO.
For example, a dubbing video signal VD11 . is input to the video circuit 4 via the cable connection connector 12, the external connection connector 10, and the switching circuit 3, so that the playback signal of the playback device 13 provided externally can be dubbed to the video recording device 5. .

The video circuit 4 and the video recording device 5 are directly supplied with a power output pw from a power supply circuit 14 made of, for example, a battery, and the power output Pw is supplied to the camera circuit 2 via a switch circuit 15.

In addition to the above configuration, the external connection connector 1o is provided with a switching control signal input terminal e, and when the cable connection connector 12 is inserted into the external connection connector 1O, the signal is supplied from the playback device 13 via the connection cable 11. supplying the switching control signal CON to the switching circuit 3 as a control signal SWI via the switching control signal input terminal e;
The control signal SW2 is supplied to the switch circuit 15 as a control signal SW2.

In this embodiment, the switching control signal C of the connection cable 11
The ON signal line is grounded on the playback device 13 side, so that when the cable connector 12 is connected to the external connector 10, the switching control signal input terminal e falls to the ground potential, thereby controlling switching. A signal CON is supplied to the camera-integrated recording device 1. The switching control signal input terminal e is connected to the power supply +VCC via the load resistor 21, and is always at the potential of the power supply +VCC (
In other words, when the switching control signal input terminal e falls to the ground potential (that is, the logic "0" level) from the state where it is maintained at the logic "1" level, the switching control signal CON at the logic "0" level is activated. By applying the signal to the switching circuit 3, the switching circuit 3 is switched from the state connected to the signal input terminal a to the h side, and at the same time, the switch circuit 15 is switched from the on state to the off state.

Thus, the power supply +■, the load resistance 21, and the external connection terminal 1
0, the cable connection connector 12, the connection cable 11, and the ground system constitute a power supply control means 22 for the switching circuit 3 and the switch circuit 15.

Note that the external connection connector 10 is provided with a ground terminal f for connecting the ground line of the playback device 13 to the ground line of the camera-integrated recording device l.

In the above configuration, the camera-integrated recording device 1 is normally used without connecting the external connection cable 11 to the external connection connector IO.

At this time, the switching circuit 3 and the switching circuit 15 are not supplied with the switching control signal CON, so that the load resistance 21
By applying the drive signal SWI of logic rlJ level from the power supply +VCC through The signal is now supplied to the video circuit 4 via the a side.

At this time, the drive signal SW2 for the switch circuit 15 also rises to the logic "1" level, so the switch circuit 15 is in the on state, and thus the power output PW from the power supply circuit 14 is sent to the camera circuit 2 via the switch circuit 15. Supplied.

In this way, normally, the video signal VDca of the object to be imaged captured by the camera included in the camera circuit 2 is recorded on, for example, one circulating track of the video recording device 5 via the video circuit 4. Ru.

On the other hand, when it is desired to use the camera-integrated recording device 1 as a dubbing device, the cable reading connector 12 of the connection cable 11 is connected to the external connection connector 10.

At this time, the switching control signal CON of logic "O" level (that is, ground potential) is supplied from the connection cable 11 to the switching control signal input terminal e of the external connection connector 10, so that the drive signal SW1 of the switching circuit 3 is changed. When the signal falls to the logic "0" level, the switching circuit 3 switches to the signal input terminal side. At the same time, the drive signal S of the switch circuit 15
When W2 also falls to the logic rOJ level, the switch circuit 15 is turned off, and thus the power output PW is not supplied to the camera circuit 2.

Therefore, the dubbed video signal VD, reproduced by the recycling bag ff113 is supplied to the video circuit 4 via the connection cable 11, the cable connection connector 12, and the external connection connector IO1 switching circuit 3, and thereby the video recording device 5
The dubbing video signal VDDI can be dubbed.

Therefore, in this dubbing mode, since the power output PW is not supplied to the camera circuit 2,
Since the camera circuit 2 is in a state where it does not generate a high-frequency drive signal for scanning the solid-state image sensor, even if the connection cable 11 is connected to the external connection connector 10, there is no need for external connection from this connection cable 11. It does not radiate radio waves.

In addition, by not supplying power to the camera circuit 2 that does not need to operate during dubbing, the power of the power supply circuit 14 can be prevented from being unnecessarily consumed.

In the above embodiment, the camera-integrated recording device 1
Although the embodiment has been described in which a recording-only video recording device 5 is provided inside the device, the present invention can be similarly applied to a case in which a recording/reproducing device is provided instead. In this case, after recording the video signal VDca obtained from the camera circuit 2 in the recording/reproducing device, the recorded video signal is supplied to the connecting connector of the display device via a separately provided external connecting connector. Configure. If an off control signal is given to the switch circuit 15 when switching the camera-integrated recording device 1 to this playback mode, the drive signal for the camera circuit 2 can be prevented from being generated in the playback mode. This makes it possible to prevent unnecessary radio waves from being radiated via the connection cable connected to the outside.

Further, in the above embodiment, a battery is used as the power supply circuit 14, but instead of this, power may be supplied to the power supply circuit 14 from a separately provided external power supply (for example, a commercial power supply) via a power supply connection cable. The present invention can also be applied to this case. In this case, if an external connection connector is separately provided to correspond to the power supply circuit 14 and the switch circuit 15 is turned off when the power cable is connected to this external connection connector, the power supply connection cable can be connected. It is possible to prevent unnecessary radio waves from being radiated to the outside through the antenna.

Furthermore, in the above-described embodiment, an embodiment was described in which the switch circuit 15 was controlled to be on/off by changing the logic level of the drive signal SW2 for the switch circuit 15, but instead of this, the external connection connector 1o
When the cable connector 12 is connected to the cable connector 12, the contact of the switch circuit 15 may be turned off via a mechanical mechanism, or a central processing unit configured with a microcomputer may be separately provided, and the Various modifications may be made, such as configuring the switch circuit 15 to be controlled.

Effects of the Invention As described above, according to the present invention, when the camera-integrated recording device enters the operation mode for connecting the connection cable,
By controlling not to supply power to the camera circuit, it is possible to effectively prevent unnecessary radio waves from being radiated to the outside via the connected cable.

[Brief explanation of drawings]

The figure is a block diagram showing an embodiment of a camera-integrated recording device according to the present invention. 1...Camera integrated recording device, 2...
Camera circuit, 3...Switching circuit, 1o...
・External connection connector, 11...Connection cable,
14...Power supply circuit, 15...Switch circuit, 22...8 power supply control means.

Claims (1)

[Scope of Claims] A camera-integrated recording device having a camera circuit using a solid-state image sensor as an imaging means, comprising: a recording means for recording a captured video signal obtained from the camera circuit; and a power supply for controlling the power to the camera circuit. What is claimed is: 1. A camera-integrated recording device comprising: switch means for switching off the switch means when a connecting cable is connected to an external connector;