JPH0522191A - Radio carryer device for mutual connection between av devices - Google Patents

Abstract

PURPOSE:To facilitate the movement of AV devices by connecting AV devices by radio waves and to facilitate the installation of a television receiver and permitting 1:n connection. CONSTITUTION:The input/output part of an AV device such as a VTR device and an AV input/output interface circuit 3 are connected through an input part 1 and an output part 2. An input/output switch 4 controls an AV input/ output interface circuit 3 in accordance with the input or output mode of the connected AV to set the input or output mode. A radio transmitter-receiver 6 transmits and receives video and audio signals between devices to be connected by radio waves. A radio frequency switching part 5 sets the same radio frequency to radio transmitter-receivers 6 between devices to be connected.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wireless carrier device for connecting image and audio information between AV devices.

[0002]

2. Description of the Related Art Conventional AV equipment is connected to each other by wire, and AV equipment communication information (image, audio information, etc.) is transmitted by parallel lines or coaxial lines.

[0003]

Since the conventional connection between AV devices is wired, it is necessary to carry out wiring at home, and in the case of 1-to-n connection, it is necessary to install a distributor. It was Furthermore, since the AV devices are always connected to each other by a wire, it is difficult to easily move the AV devices in the house.

An object of the present invention is to provide a wireless carrier device for connecting AV devices to each other by wirelessly connecting the AV devices.

[0005]

A radio carrier device for interconnection between AV devices according to the present invention comprises an interface unit connected to an input / output unit of an AV device such as a television or a VTR device, and an A unit connected to the interface unit.
An input / output switch for controlling the interface unit to set the input or output mode according to the input or output mode of the V device and a wireless transmitter for wirelessly transmitting and receiving video and audio signals between the connected devices. It has a call receiver and a radio frequency switching unit that sets the radio frequency of the radio transmitter / receiver between connected devices to the same frequency.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the present invention. An input unit 1 and an output unit 2 of a pin jack which mate with an input / output terminal on the AV equipment side, an AV input / output interface circuit 3, An input / output switch 4 that is set according to the input / output mode of the connected device, a radio frequency switching unit 5 for matching the radio frequencies of the connected devices to each other, and a transmission / reception wireless transmitter that transmits / receives signals between the connected devices. It is composed of a receiver 6 and an AC / DC converter 7 for generating operating power.

Inserting the pin jacks of the input section 1 and the output section 2 into the input / output terminals of each AV apparatus to be connected, the output section 2 side is used for the output apparatus, and the input section 1 side is used for the input apparatus. Are set by the input / output switch 4. Next, the radio frequency switching unit 5 selects the radio frequencies of both devices to be connected to the same frequency, and the transmission / reception radio transmitter / receiver 6 uses the radio frequency selected by the radio frequency switching unit 5 between the devices. Sends and receives video and audio signals. When making a one-to-one or one-to-n connection, the radio frequency to be used is set to the same frequency by the radio frequency switching device 5, but the radio frequency of a device that is not directly connected is a frequency to prevent interference (misconnection). Change and set.

FIG. 2 is a connection diagram showing an example of use of the present invention. Video and audio signals are transmitted and received at the same radio frequency between the wireless carrier devices 10 attached to the input / output terminals on the rear surface of the VTR device and the rear surface of the television device.

[0010]

As described above, according to the present invention, by changing the connection between AV devices from wired to wireless, there is no distance restriction between AV devices at home or in a conference room, and the layout can be easily changed. This has the effect of facilitating the movement of AV equipment. In addition, since 1-to-n connection is possible, there is an effect that a television device can be easily installed without a cable being entangled in a video conference or the like in which a large number of small television devices are arranged on each table to hold a conference.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention.

FIG. 2 is a connection diagram showing a usage example of the present invention.

[Explanation of symbols]

 1 AV device interface image / sound input unit 2 AV device interface image / sound output unit 3 AV input / output unit interface circuit 4 AV device interface circuit input / output switch 5 Radio frequency switching unit 6 Transmission / reception wireless transmitter / receiver 7 AC / DC Converter 8 Video Device (Output Mode) 9 Television Device (Input Mode) 10 Wireless Carrier Device for Mutual Connection of AV Equipment

Claims (1)

Claim: What is claimed is: 1. An interface unit connected to an input / output unit of an AV device such as a television set or a VTR device, and controlling and inputting the interface unit according to an input or output mode of the connected AV device. Alternatively, the radio frequency of the input / output switch set to the output mode, the wireless calling / receiving device for wirelessly transmitting and receiving video and audio signals between the connected devices, and the wireless calling / receiving device between the connected devices are the same. A wireless carrier device for connecting between AV devices, comprising: a wireless frequency switching unit for setting a frequency; and wirelessly connecting between AV devices.