JPH08322090A - Receiver provided with remote controller built-in aural receiver - Google Patents

Abstract

PURPOSE: To improve the operability of the receiver by changing the transmission frequency of the transmitting circuit of a VTR into the receivable frequency of a remote controller in response to the reception frequency of the FM voice signal of a remote control transmitter. CONSTITUTION: The reproduced aural signals, etc., of a video tape undergo the FM modulation through an FM transmitting circuit 13 and are transmitted to the outside through a transmission antenna 14. This FM signal is received by an FM receiving circuit 22 of a remote controller 2 and demodulated there. Then the demodulated FM signal is outputted from a voice output circuit 23 via a speaker, etc. When a user changes the FM reception frequency of the circuit 22 where its reception frequency is set by the command of a remote control microcomputer 25, the changed frequency is inputted by means of a frequency input key 24. Thus the microcomputer 25 changes the reception frequency of the circuit 22 and also transmits this change information through a remote control transmission part 26. A photodetection part 12 of a VTR main body 1 receives the change information (infrared signal), and a main microcomputer 11 changes the transmission frequency of the circuit 13.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a receiver such as a video tape recorder (VTR), which is provided with a transmitter for transmitting audio, while a remote control transmitter for controlling the receiver is provided with the above-mentioned transmitter. The present invention relates to a device provided with a circuit for receiving an audio signal from a transmitter.

[0002]

2. Description of the Related Art A transmitter for wirelessly transmitting voice as an FM signal is provided on the side of a VTR, while a remote control transmitter for controlling the VTR has the FM transmitter.
A product that receives an audio signal from a transmitter and listens to the sound through a speaker or earphones provided in the remote controller (hereinafter, a remote controller having such a function is referred to as a "sound remote controller") is on the market. .

[0003]

By the way, such a remote control transmitter is constructed so that the frequency for receiving the audio signal from the FM transmitter can be changed in order to prevent the influence from other broadcast radio waves.

If the reception frequency is changed in this way, the frequency on the transmission side must be changed accordingly.
In the past, this change operation was performed by the user operating the VTR main body, which was very troublesome.

The present invention is therefore aimed at overcoming such drawbacks.

[0006]

According to the present invention, there is provided a transmitting means for wirelessly transmitting an audio signal from an audio signal source to the outside, a remote control signal receiving part, and a transmitting means for receiving a signal from the receiving part. A receiver unit having frequency changing means for changing the transmission frequency, a radio signal receiving means for receiving a voice signal from the transmitting means, and a voice signal outputting means for outputting a voice signal obtained by the radio signal receiving means. And a remote control signal transmitting unit, a reception frequency setting unit, and a remote control transmitter that transmits a control signal from the remote control transmitting unit according to a change in the reception frequency of the wireless signal receiving unit by the reception frequency setting unit. It is a receiver equipped with a remote controller with a built-in receiver.

[0007]

According to the above construction, the frequency of the transmitting side is automatically changed only by the user changing the audio signal receiving frequency of the remote control transmitter.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG.

FIG. 1 is a block diagram of a VTR and a remote controller for controlling the VTR according to the present invention, in which 1 is a VTR main body, 11 is a main microcomputer (microcomputer), and 12 is an infrared ray receiving section. Reference numeral 13 is an FM transmission circuit, and 14 is a transmission antenna.

Reference numeral 2 is a remote control transmitter, 21 is a receiving antenna for receiving an FM signal from the transmitting antenna,
22 is an FM receiving circuit, 23 is a voice output circuit, 24 is a frequency input key, 25 is a remote control microcomputer, and 26 is a remote control transmitting unit.

An audio signal such as a reproduced audio signal from the video tape is FM-modulated by the FM transmitting circuit 13 and transmitted from the transmitting antenna 14 to the outside. The FM signal transmitted from the transmitting antenna 14 is received by the receiving antenna 21 of the remote controller 2, the received voice signal is received and demodulated by the FM receiving circuit 22, and is output from the voice output circuit 23 via the speaker or earphone. . The reception frequency of the FM reception circuit 22 is set by a command from the remote controller microcomputer 25.

When the user changes the FM reception frequency, the frequency input key 24 is used to input the changed frequency, but the remote-control microcomputer 25 uses the change information (Δ).
In response to f), the reception frequency of the FM reception circuit 22 is changed, and the change information is transmitted from the remote control transmission unit 26 as an infrared signal.

The infrared signal (change information) is received by the light receiving section 12 of the VTR main body 1 and sent to the main microcomputer 11. The main microcomputer 11 changes the transmission frequency of the FM transmitting circuit 13 according to the change information. The transmission frequency is set to match the changed reception frequency.

[0014]

As described above, according to the present invention, when the reception frequency of the FM audio signal of the remote control transmitter is changed, the transmission frequency of the VTR transmission circuit is automatically changed so that it can be received. Therefore, usability can be improved.

[Brief description of drawings]

FIG. 1 is a block diagram of a main part of a video tape recorder embodying the present invention and a remote controller for controlling the same.

[Explanation of symbols]

 1 VTR 2 Remote Control 11 Main Microcomputer 13 FM Transmission Circuit 22 FM Reception Circuit 23 Audio Output Circuit 24 Frequency Input Key 25 Remote Control Microcomputer

Claims (2)

[Claims] 1. A transmitting means for wirelessly transmitting an audio signal from an audio signal source to the outside, a remote control signal receiving portion, and a frequency changing means for receiving the signal from the receiving portion and changing the transmission frequency by the transmitting means. A receiver section comprising: a radio signal receiving means for receiving a voice signal from the transmitting means; a voice signal output means for outputting a voice signal obtained by the radio signal receiving means; and a remote control signal transmitting section, A remote controller with a built-in voice receiver, comprising a reception frequency setting means and a remote control transmitter for transmitting a control signal from the remote control transmission section according to a change in the reception frequency of the wireless signal receiving means by the reception frequency setting means, is provided. Receiving machine. 2. The receiver according to claim 1, wherein the receiver section is a video tape recorder, and the remote controller includes a remote controller with a built-in audio receiver.