JPH0823504A - Camcorder - Google Patents

Abstract

PURPOSE:To provide a camcorder for which the troublesomeness of a switch changeover operation is dissolved and operability is improved. CONSTITUTION:When a plug 7 is connected to a terminal 6, a microcomputer 1 receives the output (a) of a detection switch attached to the terminal 6 and outputs control signals (b) for turning a system to a VTR mode. A video signal processing circuit 3 receives the control signals (b) and is operated so as to read signals from a recording medium 5 and output video signals to the terminal 6. When the plug 7 is not connected to the terminal 6, the microcomputer 1 receives the output (a) of the detection switch attached to the terminal 6 and outputs the control signals (b) for turning the system to a camera mode. A camera signal processing circuit 2 and the video signal processing circuit 3 receive the control signals (b) and are operated so as to record the video signals received by a camera 4 in the recording medium 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a VTR with a built-in camera.

[0002]

2. Description of the Related Art Conventionally, a camera-integrated VTR has a dedicated changeover switch for switching between a camera mode and a VTR mode, and is configured so that a user can arbitrarily switch the mode.

[0003]

However, in the above-mentioned conventional example, since the user has to switch the switch each time since it has the exclusive changeover switch, the operation becomes complicated. There was a flaw.

The present application has been made in order to solve such a conventional problem, and an object thereof is to provide a camera-integrated VTR in which the complexity of the operation is eliminated and the operability is improved.

[0005]

In order to achieve the above object, a VTR with a built-in camera according to the present invention has a video signal output terminal provided with a switch for detecting that a plug is connected. And a control device having a function of switching between a camera mode and a VTR mode by using a detection signal of the switch, and a switch for detecting connection of a plug in claim 2. A video signal output terminal and an audio signal output terminal having a switch for detecting that the plug is connected,
And a control device having a function of switching between the camera mode and the VTR mode according to the combination of the detection signals of the respective switches.

[0006]

According to the structure of claim 1, the switch provided in the video output terminal detects that the plug is connected and sends a signal to the system control microcomputer.
The microcomputer controls the system so as to switch the camera / VTR mode to the VTR mode. As a result, the user can switch the camera-integrated VTR to the VTR mode simply by connecting the monitor to the monitor to view the reproduced image, so that the user needs to switch the camera / VTR mode switch as in the conventional case. Disappears,
Operability is improved.

According to the second aspect of the invention, the switch provided at each output terminal detects that the plug is connected, sends a signal to the system control microcomputer, and operates as follows. . (A) When plugs are connected to both the video output terminal and the audio output terminal, the microcomputer sets the camera / VTR mode to V
Control the system to switch to TR mode. (B) When the plug is not connected to the audio output terminal,
The microcomputer controls the system to switch the camera / VTR mode to the camera mode.

At this time, according to (a), the same effect as that of the first aspect of the invention can be obtained, and according to (b), the function of being able to confirm the image taken by the camera on the external monitor can be added. .

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a diagram showing a schematic structure of a main part which best shows the features of the first embodiment of the present invention. In FIG. 1, 1 is a microcomputer for system control and 2 is a camera signal. A processing circuit, 3 is a video signal processing circuit, 4 is a camera, 5 is a recording medium such as a magnetic tape, 6 is a video signal output terminal with a plug connection detection switch, and 7 is a plug for connecting to an external monitor or the like. A cable 8 is a display device such as an external monitor.

In the above structure, when the plug 7 is connected to the terminal 6, the microcomputer 1 receives the output a of the detection switch attached to the terminal 6 and outputs the control signal b for putting the system into the VTR mode. The video signal processing circuit 3 receives the control signal b, reads the signal from the recording medium 5, and outputs the signal to the terminal 6
It operates so as to output a video signal.

Next, when the plug 7 is not connected to the terminal 6, the microcomputer 1 receives the output a of the detection switch attached to the terminal 6 and outputs the control signal b for setting the system to the camera mode. The camera signal processing circuit 2 and the video signal processing circuit 3 operate to receive the control signal b and record the video signal received by the camera 4 in the recording medium 5.

[Second Embodiment] FIG. 2 is a view best showing the features of the second embodiment of the present invention. In FIG.
1 is a microcomputer for system control, 2 is a camera signal processing circuit, 3 is a video signal processing circuit, 4 is a camera, 5 is a recording medium such as a magnetic tape, 6 is a video signal output terminal with a plug connection detection switch, 7 Is a cable with a plug for connecting to an external monitor (for video), 8 is a display device such as an external monitor, 9 is a cable with a plug (for audio), 10 is audio with a plug connection detection switch A signal output terminal, 11 is an audio signal processing circuit, and 12 is a microphone.

In the above configuration, when the plugs are connected to both the terminals 6 and 10, the microcomputer 1 receives the output a of the detection switch attached to the terminal 6 and the output c of the detection switch attached to the terminal 10, The control signal b for outputting the system to the VTR mode is output. Video signal processing circuit 3,
The audio signal processing circuit 11 receives the control signal b and receives the recording medium 5
It operates so as to output a video signal to the terminal 6 and an audio signal to the terminal 10 by reading the signal from the terminal.

Next, when the plug is not connected to the terminal 10, the microcomputer 1 receives the output a of the detection switch attached to the terminal 6 and the output c of the detection switch attached to the terminal 10, and sets the system to the camera mode. To output the control signal b. Camera signal processing circuit 2, video signal processing circuit 3
Receives the control signal b, operates to record the video signal received by the camera 4 on the recording medium 5, and operates the terminal 6 to output the video signal received by the camera 4.
At the same time, the audio signal processing circuit 11 operates to receive the control signal b and record the audio signal received by the microphone 12 in the recording medium 5.

FIG. 3 shows an embodiment of an output terminal equipped with a plug connection detection switch which is an important element for constructing the present invention.

In FIG. 3, 13 is a minus split short type pin jack, which has a signal contact 14 and a ground contact 1.
5 and the detection terminal 16. The detection terminal 16 is connected to the power supply 18 by the pull-up resistor 17. Reference numeral 19 is a ground, and 20 is a pin plug. a is a plug connection detection signal, and d is a video or audio output signal.

In the figure, when the pin plug 20 is connected to the pin jack 13, the detection terminal 16 and the ground contact 15 are short-circuited by the minus contact piece of the pin plug 20, and the control signal a becomes Low potential. When the plug 20 is not connected, the detection terminal 16 is connected to the power supply 18 by the pull-up resistor 17, and the control signal a is High.
It becomes an electric potential.

Since the presence / absence of the plug connection is replaced with the electric signal High / Low in this way, the system can be controlled by placing it in a control device such as a microcomputer.

As another embodiment, there may be a method in which a mechanical switch is provided inside the pin jack and the tip of the pin plug pushes the switch to turn on / off the switch and convert it into an electric signal. Since the cost is high and the feasibility is low, the description is omitted.

[Effects peculiar to the first embodiment] According to the first embodiment, only by connecting the plug to the video output terminal,
Since the mode is switched to the VTR mode, it is the simplest usage for a user who uses only basic functions, and has a great effect of improving operability.

[Effects peculiar to the second embodiment] According to the second embodiment, in order to switch to the VTR mode, it is necessary to connect plugs to both the video output terminal and the audio output terminal. Since both plugs are normally connected regardless of whether the reproduced image is viewed or dubbed, the same effect as that of the first embodiment can be obtained when the plug is actually used.

Furthermore, when the plug is connected only to the video output terminal, the REC mode is entered and the camera EE image is output, so that a somewhat advanced user can use it while checking the camera image on the external monitor. Become. In such a usage, confirmation of an audio signal by an external speaker is not usually performed because howling occurs, so that a plug is connected to the audio signal output terminal to detect the V signal.
It is unlikely that you will end up in TR mode.

[0023]

As described above, according to the first aspect of the present invention.
According to the described invention, simply by connecting the video signal output terminal and the external monitor with a cable in order to view a reproduced image, the camera-integrated VTR enters the reproduction mode.
There is an effect of improving operability that the user does not need to operate the camera / VTR mode changeover switch.

According to the second aspect of the invention, the function of improving the operability similar to that of the first aspect of the invention can be provided, and a function of viewing the camera EE image on the external monitor can be added.

According to the present invention, a reproduced image cannot be confirmed by itself, such as when an optical viewfinder is used, and a camera-integrated type V having no external signal input function is used.
It has an effect on TR.

[Brief description of drawings]

FIG. 1 is a block diagram showing a schematic configuration of a main part of a first embodiment of the present invention.

FIG. 2 is a block diagram showing a schematic configuration of a main part of a second embodiment of the present invention.

FIG. 3 is a diagram illustrating an output terminal provided with a plug connection detection switch according to the embodiment of the present invention.

[Explanation of symbols]

1 system control microcomputer 2 camera signal processing circuit 3 video signal processing circuit 4 camera 5 recording medium 6 video signal output terminal with plug connection detection switch 7 cable with plug (for video) 8 display device such as monitor 9 plug Attached cable (for audio) 10 Audio signal output terminal with plug connection detection switch 11 Audio signal processing circuit 12 Microphone 13 Minus split short type pin jack 14 Signal contact point 15 Ground contact point 16 Detection terminal 17 Pull-up resistor 18 Power source 19 Ground 20 pin plug

Claims (2)

[Claims] 1. A video signal output terminal having a switch for detecting connection of a plug, and a control device having a function of switching a camera mode or a VTR mode by using a detection signal of the switch. A VTR with a built-in camera. 2. A video signal output terminal having a switch for detecting that the plug is connected, and an audio signal output terminal having a switch for detecting that the plug is connected,
A camera-integrated VT, which is provided with a control device having a function of switching between a camera mode and a VTR mode in accordance with a combination of detection signals of the respective switches.
R.