JPH0715619A - Wireless av signal transceiver - Google Patents

Abstract

PURPOSE:To attain the wireless connection between an AV equipment and a voice/image reproducer and also to secure the connection of plural AV equipments in order to easily change the communication constitution between the AV equipments and the voice/image reproducer. CONSTITUTION:A wireless AV signal transceiver consists of an AV signal transmitter 5 which transmits the AV signals received from AV equipments 1 connected to each other by a radio wave or an infrared ray and an AV signal receiver 6 which inputs the radio wave or the infrared ray received from the transmitter 5 and outputs the AV signal to a voice/image reproducer 3 (a TV monitor in a diagram). The transmitter 5 has a selector switch 5A to select one of those equipments 1 to be transmitted through the radio and transmit the AV signal.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an AV signal between an audiovisual device having an AV (audiovisual) output (hereinafter referred to as an AV device) and an audio / image reproducing device such as an AV monitor having an AV input. The present invention relates to a wireless AV signal transmitter / receiver that transmits and receives wirelessly.

[0002]

2. Description of the Related Art AV equipment for outputting audio and images such as video tape recorders, video disk devices, 8 mm VTRs, home-use game machines, etc. is connected to an audio / image reproducing device having an AV input via an AV cable. FIG. 3A is a block diagram showing an example of a general connection configuration between an AV device and a TV monitor having an AV input. The AV device 1 and the TV monitor 3 are
Connected via the AV cable 2. If there are multiple AV devices 1 and want to share the TV monitor 3, for example,
As shown in (B), each AV device 1 via the selector device 4
Connected to the TV monitor 3 and each selector switch 4A
In general, the connection between the AV device 1 and the TV monitor 3 can be switched.

On the other hand, as a technique for wirelessly communicating voice and video, a technique for transmitting / receiving an electromagnetic wave such as a radio wave between a transmitter and a receiver is known. For example, like transmission and reception of television radio waves, the transmitter side modulates a video signal, a synchronization signal, and an audio signal to a predetermined frequency and transmits them by radio waves, and the receiver side extracts video and audio signals from the radio waves. It reproduces a series of video and audio. As an example of voice wireless communication, a cordless telephone such as a cordless telephone has been realized.

[0004]

However, in the AV equipment used at home, it is necessary to connect the AV equipment and the audio / image reproducing apparatus through the AV cable at the present time. The installation location was limited by the length of the AV cable, and there was a problem that the installation location was a problem and the AV cable spoiled the aesthetics of the room. Recently, various AV devices have appeared, and it is common to have multiple AV devices in a home. Therefore, as the number of AV devices in the home increases, problems such as installation locations have become more serious.

The present invention has been made in view of the above problems, and an object of the present invention is to wirelessly connect an AV device and an audio / image reproducing apparatus and to connect a plurality of AV devices. An object of the present invention is to provide a wireless AV signal transmitter / receiver capable of easily changing the communication configuration between a plurality of AV devices and an audio / image reproducing device.

[0006]

The present invention is a wireless AV system.
The present invention relates to a signal transmitter / receiver, and an object of the present invention is to transmit an AV signal output from a connected AV device by an electric wave or an infrared ray, and an electric wave or an infrared ray from the AV signal transmitter. Input and AV on the audio / image playback device
And an AV signal receiver for outputting a signal, which is achieved by wirelessly transmitting and receiving an AV signal between the AV device and the audio / image reproducing device. Further, it is achieved by selecting an AV device to be wirelessly transmitted from a plurality of AV devices connected to the AV signal transmitter by a selector switch so that the AV device can be transmitted.

[0007]

According to the present invention, since the AV equipment and the audio / image reproducing apparatus can be wirelessly communicated with each other, the AV cable between them can be eliminated. In addition, the AV signal transmitter can connect to multiple AV devices, and select the AV device to wirelessly transmit from among the connected AV devices with the selector switch to transmit, so change the connection configuration. Without this, wireless communication between the desired AV device and the audio / image reproducing device becomes possible. Also, one AV transceiver can be used for multiple AV devices. Furthermore, by making the AV signal transmitter an integrated AV signal transmitter for game machines that is directly connected to the AV output terminal of the game machine body, the AV cable itself becomes unnecessary.

[0008]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is a block diagram showing an example of the connection configuration of an AV device and a TV monitor using the wireless AV signal transceiver of the present invention. The wireless AV signal transceiver is output from the connected AV device 1. An AV signal transmitter 5 that transmits an AV signal by radio waves or infrared rays, and an AV signal transmitter 5
Input the radio waves or infrared rays from the voice / image playback device 3
An AV signal receiver 6 that outputs an AV signal to a TV monitor in the example of FIG. The AV signal transmitter 5 has a selector switch 5A, and an AV device to be wirelessly transmitted from a plurality of connected AV devices 1 can be selected and transmitted by the selector switch 5A. Here, the technique of wireless communication between the transmitter and the receiver is based on a known technique, and the detailed configuration and detailed operation of the AV signal transmitter 5 and the AV signal receiver 6 will not be described. .

An operation example of the wireless AV signal transmitter / receiver having such a configuration will be briefly described with reference to FIG. When the AV device 1 to be used is selected by the operation of the selector switch 5A by the operator, the AV signal transmitter 5 receives the AV signal output from the selected AV device 1,
Synchronous signals and audio signals are modulated to a predetermined frequency and transmitted as radio waves or infrared rays. The radio waves or infrared rays transmitted from the AV signal transmitter 5 are received by the AV signal receiver 6,
A video signal, a synchronizing signal, and an audio signal are extracted from the radio waves or infrared rays, an AV signal is output to the TV monitor 3, and an audio and an image are reproduced.

FIG. 2 is a diagram showing another example of the wireless AV signal transmitter / receiver according to the present invention. The same components as those in FIG. 1 are designated by the same reference numerals and the description thereof will be omitted. This example is an example when the AV signal transmitter 1 of FIG. 1 is dedicated to a game machine.
The signal transmitter 5 ′ is an integrated AV signal transmitter for game machines that is directly connected to the AV output terminal of the game machine body 1.
When the operator fits the commercially available game console body 1 and the AV signal transmitter 5 ′ at the fitting portion, the AV output terminal portion 1a of the game console body 1 and the AV input terminal portion of the AV signal transmitter 5 ′ 5a is connected. With such a configuration, the AV cable between the game machine body 1 and the AV signal transmitter 5'is unnecessary.

In the above-described embodiment, an example in which AV signals are transmitted / received in a one-to-one correspondence with the AV equipment and the audio / image reproducing apparatus has been shown. The multiplex communication may be enabled. Also AV
The example in which the signal transmitter is a combined type AV signal transmitter that is directly connected to the AV output terminal of the game machine is shown, but it may be built in.

[0012]

As described above, according to the wireless AV signal transmitter / receiver of the present invention, the AV equipment and the audio / image reproducing apparatus can be wirelessly communicated with each other, and the AV cable between them is unnecessary. Therefore, it becomes difficult to limit the installation location of the AV device, the restrictions on the installation location are eased, and the installation location can be easily changed. In addition, the AV signal transmitter can connect to multiple AV devices, and select the AV device to wirelessly transmit from among the connected AV devices with the selector switch to transmit, so change the connection configuration. Without this, wireless communication between the desired AV device and the audio / image reproducing device becomes possible.

Further, one AV transmitter / receiver can be used for a plurality of AV devices. Further, since all the AV cables to and from the audio / image reproducing device are unnecessary, the aesthetic problem of the room caused by these AV cables is eliminated. In addition, by making the AV signal transmitter an integrated AV signal transmitter for game machines that is directly connected to the AV output terminal of the game machine body, the AV cable itself becomes unnecessary, and when not playing the game device It will be easier for you to keep things organized in other places.

[Brief description of drawings]

FIG. 1 is an AV using the wireless AV signal transmitter / receiver of the present invention.
It is a block diagram which shows an example of a connection structure of a device and a TV monitor.

FIG. 2 is a block diagram showing an example of a connection configuration between a game machine and a TV monitor when the AV signal transmitter dedicated to the game machine of the present invention is used.

FIG. 3 is a block diagram showing an example of a general connection configuration between an AV device and a TV monitor having an AV input.

[Explanation of symbols]

 1 AV equipment 1A Game console body 3 TV monitor 5 Transmitter 5A Selector switch 6 Receiver

Claims (3)

[Claims] 1. An AV signal transmitter for transmitting an AV signal output from a connected AV device by radio waves or infrared rays, and an electric wave or infrared rays from the AV signal transmitter are input to an audio / image reproducing apparatus for AV. A wireless system comprising an AV signal receiver for outputting a signal, and wirelessly transmitting / receiving an AV signal between the AV device and the audio / image reproducing device.
AV signal transceiver. 2. The AV signal transmitter can be connected to a plurality of AV devices, and an AV device to be wirelessly transmitted from the plurality of connected AV devices can be selected and transmitted by a selector switch. The wireless AV signal transmitter / receiver according to claim 1. 3. The AV signal transmitter is an AV of a game console body.
The wireless AV signal transmitter / receiver according to claim 1, wherein the wireless AV signal transmitter / receiver is a united type AV signal transmitter for game machines directly connected to the output terminal.