JPH04121177U - Connection device for camera-integrated VTR - Google Patents

Abstract

(57) [Summary] [Purpose] The purpose is to provide a connection device for a camera-integrated VTR that reduces insertion loss while maintaining wiring simplicity. [Structure] A first terminal 9 of a switch section 5a is connected to an antenna input terminal 1a of a television receiver 1, and a television antenna 3 is connected to an alternatively selected second terminal 11 of this switch section 5a. A camera-integrated VT is connected to the third terminal 15, which is also selectively selected, via the modulator section 5b.
This is a connection device that connects R2. The switch part 5a and the modulator part 5b are housed in a single unit 5, and the first terminal 9 of the switch part 5a in this single unit 5 is connected to the antenna input terminal 1a via the connector 7, so that the single unit A modulator unit 5b in the camera 5 is connected to the camera-integrated VTR 2 via a cable 17.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to a connection device for a camera-integrated VTR, and particularly relates to a camera-integrated VTR and a connection device. The present invention relates to a connection device for a camera-integrated VTR used for connection to a TV receiver.

0002

[Conventional technology]

As shown in FIG. 3, conventionally, a camera-integrated VTR 31 and a television receiver 32 are connected. When connecting the TV receiver 32 and the TV antenna 33, a cable connecting the TV receiver 32 and the TV antenna 33 A modulator 37 with a high frequency switch is incorporated in the middle of 35 and 36, and this high frequency A camera-integrated VTR 31 is connected to a modulator 37 with a switch via a cable 38. I'm trying to connect.

0003 This type requires three long cables 35, 36, and 38, so There is a problem that the wiring intersects in a messy manner.

0004 In order to solve this problem, as shown in FIG. 4, a high frequency switch 41 is installed at one end. , using a cable 43 having a modulator 42 at the other end, the television receiver 32 and A device that connects to a camera-integrated VTR31 has been proposed (Unexamined Japanese Patent Publication No. 63-299022). According to this, only one coaxial cable 43 is required. This has the advantage that the wiring does not intersect randomly.

[0005] The operation of this conventional technique will be explained.

[0006] The high frequency switch 41 is an off-through switch, and when it is off, The TV antenna 33 and the TV receiver 32 are connected, and the signal from the TV antenna 33 is The high frequency signal is sent to the television receiver 32 via the high frequency switch 41.

[0007] When the high frequency switch 41 is turned on, the television antenna 33 and the television receiver 32 The AV signal from the camera-integrated VTR 31 is transmitted to the modulator 42. After being modulated into an RF signal via the cable 43, it is sent to the television receiver 32. It will be done. According to this, even if the television receiver 32 does not have a video input terminal, the Images can be easily displayed.

[0008]

[Problem that the idea aims to solve]

However, in the conventional configuration, the length of the cable 43 for transmitting the RF signal is long. However, there is a problem in that the insertion loss increases there.

[0009] Therefore, the purpose of this invention is to solve the problems of the above-mentioned conventional technology and to Connection device for camera-integrated VTR that reduces insertion loss while maintaining simplicity. Our goal is to provide the following.

0010

[Means to solve the problem]

In order to achieve the above object, the present invention provides a plug-in to the antenna input terminal of a television receiver. The first terminal of the switch section is connected, and the selectively selected first terminal of the switch section is connected. Connect the TV antenna to the 2nd terminal, and connect the module to the 3rd terminal, which is also selectively selected. A camera-integrated VTR connection device that connects the camera-integrated VTR via the controller section. In this case, the switch part and the modulator part are housed in a single unit. Connect the first terminal of the switch section in the unit to the antenna input terminal via the connector. In addition to connecting the camera to the modulator part in a single unit via a cable. It is characterized by being connected to a body type VTR.

[0011]

[Effect]

According to the present invention, when the first terminal and the second terminal of the switch part are connected, the TV The RF signal from the antenna is sent directly to the television receiver via the switch section, TV broadcasts are displayed on the screen, and the switch section is switched. When the first and third terminals of the unit are connected, the AV signal from the camera-integrated VTR is is modulated into an RF signal via the modulator section, then sent to the television receiver, and then This is where the reproduced image from the camera-integrated VTR is displayed. According to this, the camera is integrated Since the AV signal is sent as is from the model VTR to the single unit, the data in between is Insertion loss within the cable is suppressed.

0012

【Example】

An example of a connection device for a camera-integrated VTR according to the present invention is shown below in FIGS. 1 and 2. Explain with reference to.

[0013] In FIG. 1, numeral 1 indicates a television receiver without a video input terminal. child In the type of television receiver 1, a cable is usually connected to the antenna input terminal 1a of the television receiver 1. Connect camera-integrated VTR2. In this case, the camera-integrated VTR2 and the TV A switch section for switching between the antenna 3 and the output from the camera-integrated VTR 2. Modulates the AV signal (approximately 5 MHz) into an RF signal (approximately 50 to 600 MHz) A modulator section is required to do this.

[0014] Therefore, in this embodiment, a modulator with a high frequency switch is used. child The high-frequency switch equipped modulator includes a switch part 5a and a modulator in a single unit 5. It accommodates a modulator section 5b.

[0015] As shown in FIG. 2, the antenna input terminal 1a of the television receiver 1 has a connector 7. The first terminal 9 of the switch section 5a in the single unit 5 is connected via the A cable 13 is connected to the second terminal 11 of the switch section 5a, which is selectively selected. Levi antenna 3 is connected. Also, the third terminal 15 which is also alternatively selected is connected to the modulator section 5b, and the cable 1 is connected to the modulator section 5b. A camera-integrated VTR 2 is connected via 7.

[0016] When the switch section 5a is in the solid line position, the TV antenna 3 and the TV receiver 1 are connected to each other. is connected, and the RF signal from the TV antenna 3 is sent to the TV receiver via the switch section 5a. It is sent to imager 1, and the television broadcast is projected there.

[0017] When the switch section 5a is switched, the connection between the television antenna 3 and the television receiver 1 is established. The AV signal from the camera-integrated VTR 2 is routed through the cable 13 to the single unit. Sent to Knit 5. Then, it is modulated into an RF signal via the modulator section 5b. , After that, the RF signal is sent to the television receiver 1 via the switch section 5a, and there The playback image is displayed.

[0018] According to this, the signal sent within the cable 17 is A with a frequency of about 5 MHz. It is a V signal. Therefore, the insertion loss there is significantly reduced compared to the conventional one. Ru. Further, there is only one cable 17 extending to the camera-integrated VTR 2. Therefore, Compared to conventional wires, wiring is not intertwined and is extremely easy to wire. be able to.

[0019] Although the present invention has been described above based on one embodiment, the present invention is limited to this. It's not a thing. For example, the switch section 5a may be an electrical switching element. Alternatively, a mechanical slide switch may be used. Also, the tip of the cable 17 may be a connector that matches the socket of the camera-integrated VTR2, and has three pins. It may also be a plug.

[0020]

[Effect of the idea]

As is clear from the above explanation, according to the present invention, the switch section and the modulator and a first terminal of the switch section within the single unit. Connects to the antenna input terminal via the connector and also connects the module within a single unit. Since a camera-integrated VTR is connected to the controller section via a cable, the camera-integrated VTR An AV signal with a frequency of about 5MHz is sent from the VTR to the single unit. Therefore, the insertion loss during that time can be significantly reduced.

[Brief explanation of drawings]

FIG. 1 is a system diagram showing an embodiment of a connection device for a camera-integrated VTR according to the present invention.

FIG. 2 is a system diagram showing a single unit.

FIG. 3 is a system diagram showing a connection device for a conventional camera-integrated VTR.

FIG. 4 is a system diagram showing a connection device for a conventional camera-integrated VTR.

[Explanation of symbols]

1 TV receiver 1a Antenna input terminal 2 Camera integrated VTR 3 TV antenna 5 Single unit 5a Switch part 5b Modulator section 9 1st terminal 11 Second terminal 15 Third terminal 17 Cable

Claims (1)

[Scope of utility model registration request] Claim 1: A first terminal of a switch unit is connected to an antenna input terminal of a television receiver, and a television antenna is connected to an alternatively selected second terminal of the switch unit, and a television antenna is connected to an alternatively selected second terminal of the switch unit. In a connection device for a camera-integrated VTR that connects a camera-integrated VTR to a selected third terminal via a modulator section, the switch section and the modulator section are housed in a single unit, and the switch section and the modulator section are housed in a single unit. The first terminal of the switch unit is connected to the antenna input terminal via a connector, and the camera-integrated VTR is connected to the modulator unit in the single unit via a cable. VT
R connection device.