KR980013296A - Wireless listening system for Television - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a TV wireless listening system, and more particularly, to a TV wireless listening system capable of adjusting a channel and a volume of a TV headphone only by operating a TV remote control and eliminating the need for detachment of a headphone for synchronization with a TV channel.

The TV receiver of the present invention comprises: a TV receiver for transmitting a headphone control signal in response to a selected channel signal and a volume control signal of a TV remote controller; And a TV tuning wireless headphone radio capable of receiving an FM audio signal of the same channel as that of the TV receiver among the TV FM audio signals propagated in the broadcasting station by the headphone control signal transmitted from the TV receiver and outputting an audio signal, It is possible to listen to a signal tuned to the TV by operating only the remote controller, thereby eliminating the restriction of the headphone such as a wired line, excellent performance in terms of listening to audio quality, and eliminating the inconvenience caused by the operation of the headphone.

Description

Wireless listening system for Television

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a TV wireless listening system, and more particularly, to a TV wireless listening system capable of adjusting a channel and a volume of a TV headphone only by operating a TV remote control and eliminating the need for detachment of a headphone for synchronization with a TV channel.

When we want to watch TV quietly with the screen without external noise when we watch TV, or when we want to keep the TV sounding out late at night, we sometimes watch TV using headphones.

However, until now, the restriction of the headphone to be wired, so that when listening to a broadcast using headphones, the user must remove the headphone when moving the seat to drink a cup of water, and listen to the contents while the headphone is removed It is inconvenient to use the headphone while taking out the listening portion.

In order to solve such a problem, a wireless headphone has been developed. In such a conventional wireless headphone, an airwave TV broadcast signal is modulated in a TV set to output video and audio signals, and an audio signal Wireless headphone radio that transmits TV signals to the wireless headphones through the adapter after modulation, and wireless headphone radio that enables the user to receive only audio signals from the TV broadcast signals transmitted from the broadcasting stations according to the channel tuning and volume control. .

However, the conventional TV wireless headphones have an advantage of overcoming the limitation of the wire, but in the case of the wireless headphone dedicated for the TV, not only are the noises generated in the two modulation processes, but also an additional element such as an adapter is required. There is a problem in that the headphone must be detached to perform channel operation or the like because the tuning operation is performed manually.

An object of the present invention is to solve the above problems by eliminating the limitation of a headphone such as a wired line by only a remote control operation, And it is an object of the present invention to provide a TV wireless listening system capable of solving the inconvenience caused by the operation of the headphones.

According to an aspect of the present invention, there is provided a TV wireless listening system including: a TV receiver for transmitting a headphone control signal in response to a selected channel signal and a volume control signal of a TV remote controller; And a TV tuning wireless headphone radio capable of receiving an FM audio signal of the same channel as that of the TV receiver among the TV FM audio signals propagated in the broadcasting station by the headphone control signal transmitted from the TV receiver and outputting an audio signal, .

1 is a diagram for explaining an outline of a TV wireless listening system according to the present invention;

2 is a block diagram of a TV receiver according to the present invention;

3 is a block diagram of a wireless headphone radio in accordance with the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a diagram showing an outline of a TV wireless listening system according to the present invention. When a remote control signal is applied by a user operating a remote controller for channel selection or volume control, a TV receiver receives a headphone control signal for controlling the headphones And the wireless headphone radio receives the headphone control signal transmitted from the TV receiver and receives the TV audio signal tuned to the TV receiver among the broadcasting signals transmitted through the antenna.

FIG. 2 is a block diagram for explaining the concept of a television receiver according to the present invention. Referring to FIG. 2, the remote controller 10 includes a remote control signal receiving unit 10 for receiving a remote control signal, A tuner 20 for tuning and receiving a selected broadcast signal, a broadcast signal demodulator 30 for demodulating a broadcast signal output through the tuner 20, and a demodulator 30 for demodulating the demodulated signal into a video signal and an audio signal A video amplifier 50 for amplifying and outputting the video signal output through the signal separator 40, and an audio amplifier 50 for amplifying the audio signal output through the signal separator 40 And a control unit for controlling the entire set by the remote control signal inputted to the remote control receiving unit 10 and for outputting a channel selection signal and a volume control signal among the signals received by the remote control receiving unit 10 A microcomputer 70 for outputting a set control signal so as to generate a signal for controlling the headphones, and a microcomputer 70 for generating a channel tuning signal and a volume control signal in response to a set control signal for controlling the headphones of the microcomputer 70 A headphone control signal generating unit 80 and an output unit 90 for transmitting the headphone control signal generated by the headphone control signal generating unit 80. [

3 is a block diagram for explaining the concept of a wireless headphone radio according to the present invention. The headphone control signal receiving unit 110 receives a headphone control signal transmitted from the TV receiver, and the headphone control signal receiving unit 110 A tuner unit 130 tuned to selectively receive an FM audio signal of the same channel as the TV channel according to a channel tuning signal output from the controller 120, An FM audio signal demodulation unit 140 for demodulating the FM audio signal selected by the tuner unit 130, an amplification circuit unit 150 for amplifying the demodulated FM audio signal, And a headphone output unit 160 for adjusting the volume of the demodulated FM audio signal output through the amplification circuit unit 150 by an adjustment signal to output an audio signal to the outside.

When the user listens to the TV broadcast signal received through the headphone antenna with the wireless headphones while watching the TV with the above system, when the user presses the channel or volume control key with the remote controller, the remote control receiver 10 of the TV receiver receives the remote control signal . When a signal received by the microcomputer 70 is detected as a channel signal or a volume control signal, a set control signal is output to the headphone control signal generator 80 so that the wireless headphone can be tuned to the changed channel or volume And the headphone control signal generator 80 transmits a channel tuning signal or a volume control signal to the outside through the output unit 90.

When the headphone control signal is output from the TV receiver as described above, the headphone control signal receiver 110 receives the headphone control signal and transmits a signal to the controller 120 that controls the set. When the signal transmitted to the controller 120 is a channel tuning signal, the tuner unit 130 is controlled to receive the TV broadcast FM TV audio signal of the same TV broadcast on the TV channel, The demodulated FM audio signal output through the demodulation unit 140 and the amplification circuit unit 150 can be output to the headphone output unit 160 at a controlled volume.

In other words, only by operating the remote controller as described above, it is possible to listen to the FM audio of the TV broadcasted through the channel synchronized with the TV channel in the wireless headphone.

Since the present invention can listen to a signal tuned to the TV by operating only the remote controller as described above, it is possible to eliminate the limitation of the headphone, which is a wired line, and to provide superior performance in terms of listening to audio quality.

Claims (3)

A TV receiver for transmitting a headphone control signal in response to a selected channel signal and a volume control signal of the TV remote controller; And a TV tuning wireless headphone radio capable of receiving an FM audio signal of the same channel as that of the TV receiver among the TV FM audio signals propagated in the broadcasting station by the headphone control signal transmitted from the TV receiver and outputting an audio signal, Wherein the television receiver is a television receiver. The remote control receiver according to claim 1, wherein the TV receiver comprises: a remote control receiver for receiving a remote control signal; a channel control unit for outputting a set control signal for generating a signal for controlling the headphone when a channel selection and a volume control signal are received, A microcomputer; A headphone control signal generator for generating a channel tuning signal and a volume control signal in response to a set control signal for controlling the headphone of the microcomputer; And an output unit for transmitting the headphone control signal generated by the headphone control signal generator to the TV tuner wireless headphone radio. [2] The apparatus of claim 1, wherein the TV tuner wireless headphone radio comprises: a headphone control signal receiver for receiving a headphone control signal transmitted from the TV receiver; A control unit for controlling the set according to a signal transmitted from the headphone control signal receiving unit; A tuner unit tuned to selectively receive an FM audio signal of the same channel as the TV channel by a channel tuning signal output from the controller; An FM audio signal demodulator for demodulating the FM audio signal selected by the tuner unit; An amplifying circuit for amplifying the demodulated FM audio signal; And a headphone output unit for outputting a demodulated FM audio signal output through the amplifying circuit unit to the outside by adjusting the volume by a volume control signal outputted from the control unit. ※ Note: It is disclosed by the contents of the first application.