KR200238198Y1 - Wireless Television Sound Hearing System - Google Patents

Abstract

The present invention relates to a Wireless Television Sound Hearing System that enables a large number of people to listen to television broadcasts through earphones. Conventionally, when a television is viewed, a voice signal is outputted through a speaker, so that people around the user who do not want to listen to the sound can hear it, so that they have to listen to others.

The present invention was conceived to overcome these drawbacks, and allows a user to listen to television broadcasts wirelessly by simply connecting a small device to the audio signal output terminal of a conventional television. In particular, it is possible to watch television without disturbing others in a public place such as a hospital ward, thereby minimizing the inconvenience of people who do not want to watch television.

The present invention makes it possible to listen to television broadcasts wirelessly by simply connecting a small device to a conventional television so that the television can be easily used without being replaced. In addition, it is designed to be able to use multiple wireless earphones simply by connecting one device, so that it can be conveniently used in a hospital room where a plurality of people live together.

The present invention relates to an audio transmitting apparatus comprising a voice signal input unit connected to a voice signal output terminal of a television and received from an output terminal thereof, a modulating unit for transmitting the input signal, an amplifying unit, and an FM radio frequency transmitting unit, demodulates and amplifies it is composed of a high-frequency FM receiver, the volume (volume) adjusting section for adjusting the sound volume, earphone jack consisting of a sound receiving device, such as such as to be used by connecting an earphone.

Description

{Wireless Television Sound Hearing System}

To date, when you are watching television, you are visually looking at the screen as well as audibly through the speakers attached to the television. Depending on the degree of control of the sound level of the television, people who are close to the television should listen to a loud sound, and those who are within range of the sound should listen. This is supplemented by the use of headphones, which is also available to only one person and is only available at close range. Therefore, it has been difficult to utilize it in a space commonly used by a plurality of people such as a ward of a general hospital in an existing method.

The wireless television broadcast listener according to the present invention solves such a limited problem and enables a plurality of people to simultaneously listen to broadcast contents wirelessly, thereby ensuring the individual's life even in a common life such as a ward.

A radio television broadcast listener according to the present invention connects an audio signal transmitting unit including a voice signal input unit, a modulating unit for transmitting an input signal, an amplifying unit, and an FM radio frequency transmitting unit to a voice signal output terminal of a television, and transmitting wirelessly, to receive the transmitted signal and demodulating and amplifying this FM radio frequency receiver, the earphone through the audio receiving device consisting of a volume (volume) control unit, an earphone connection terminal or the like to adjust the volume to hear the speech signal over the air Respectively.

In the present invention, one voice transmitting apparatus is attached to one television so that a plurality of voice receiving apparatuses can be used. Thus, when a television set in a hospital room or the like is watched, The device allows the user to listen to the sound through earphones.

In addition, it is possible to minimize the cost of purchasing a new device by not only replacing a conventional television but also to a voice signal output terminal of a television so that a small voice transmission device can hear a voice signal wirelessly, It is also possible to guarantee the personal life and the economical feasibility of the installation during the joint living in the hospital's ward.

FIG. 1 is a block diagram of the apparatus according to the present invention; FIG.

FIG. 2 is a block diagram showing a method of transmitting a signal in an audio output apparatus for realizing a device according to the present invention; FIG.

FIG. 3 is a block diagram showing a receiving method of a voice receiving apparatus signal for realizing a device according to the present invention; FIG.

The above object of the present invention can be achieved by an audio transmission apparatus comprising a voice signal input unit connected to a voice signal output terminal of a television and received from an output terminal, a modulator for transmitting an input signal, an amplifying unit, an FM high- receives the transmitted signal is composed of a high-frequency FM receiver, the volume (volume) adjusting section for adjusting the sound volume, earphone jack consisting of a sound receiving device, such as such as to be used to demodulate and amplify them connect earphones. Hereinafter, a wireless television broadcast listener will be described with reference to the accompanying drawings.

1 is a configuration diagram of a device according to the present invention. Hereinafter, the division of the apparatus according to the present invention will be described with reference to the accompanying drawings.

The audio transmission apparatus 3 wirelessly transmits the audio signal output from the audio signal output terminal 5 of the television. In the voice receiving apparatus 1, a voice signal transmitted from a voice transmitting apparatus is received, and the voice signal is output through the earphone 2 connected to the earphone jack 6. [ The volume and the on / off of the audio signal output to the earphone 2 can be adjusted by the adjuster 7 attached to the audio receiver, and one audio transmitter 3 attached to the television can be controlled by a plurality of audio receivers The device 1 can be used.

2 is a block diagram showing a method of transmitting a signal in a voice transmission apparatus for realizing a device according to the present invention. Hereinafter, a signal transmission method of a voice transmission apparatus according to the present invention will be described with reference to the accompanying drawings. The crystal oscillation unit 11 generates a carrier wave for transmission. The buffer amplifier (12) is positioned after the crystal oscillator to prevent the influence of the load on the oscillation part and oscillate the carrier wave constantly regardless of the state of other parts of the device. At this time, the coupling between the oscillation part and the buffer amplifier is a loose coupling. In a transmitter requiring a high frequency, the oscillator output is amplified, and a distorted waveform is formed by class C, and then a second high frequency or a third high frequency appearing in a plate circuit is subtracted from the frequency Is doubled or tripled. At this time, the plate circuit is provided with a resonance circuit for tuning the necessary high frequency. The modulation section 14 is a circuit for synthesizing and amplifying the signal of the audio signal output terminal 17 of the television to the high frequency input from the frequency body distribution section. The power amplifying unit 16 receives the output of the modulating unit, the frequency doubling amplifier, and the carrier oscillator, amplifies the output to the normal transmission power, and supplies the amplified signal to an antenna 15 to be launched. In addition, a neutralization circuit is provided in the power amplifier section so that the input frequency and the output frequency are the same.

3 is a block diagram showing a method of receiving a signal in a voice receiving apparatus for realizing a device according to the present invention. Hereinafter, a signal reception method of the apparatus according to the present invention will be described with reference to the accompanying drawings. Since the high frequency amplifying unit 22 amplifies the high frequency wave received through the antenna 21 to match the actual circuit and the performance of the high frequency wave amplifying unit greatly affects the entire receiver, Use a low noise amplifier. The purpose of frequency conversion of the frequency converter 23 is to convert the reception frequency to an intermediate frequency to facilitate amplification and selection of the received signal. The conversion unit is composed of a mixer and an oscillation circuit. The intermediate frequency amplifier 24 is a circuit for amplifying a signal converted to an intermediate frequency lower than the reception frequency by a frequency conversion circuit. By amplifying the intermediate frequency, it is possible to increase the amplification, to avoid oscillation, and to improve the selectivity. At this time, two or three stages of electronically coupled amplification circuits are used. The detection section 25 is a section for detecting the original signal from the modulated wave. The low-frequency amplifying unit 26 detects a signal at the detecting unit and sends it to the amplifying unit, thereby amplifying the detected low-frequency (original signal) so that the earphone 27 can hear the voice signal.

A wireless television broadcast listener according to the present invention broadcasts a signal output from a voice signal output terminal of a television through a voice transmission apparatus and transmits the broadcast program to a person or an individual having an earphone for use in connection with a voice receiver and a receiver, And to be able to listen to the contents so that the life of the individual can be assured even in the case of a common room such as a ward.

Claims (1)

An audio signal input unit for receiving a sound signal from a sound signal output terminal of the television, which can be used by being connected to a sound signal output terminal of a television, a modulator for sending out an input signal, an amplifying unit, and an FM high frequency transmitting unitVoice transmission deviceWow An FM high frequency receiving unit for receiving a signal transmitted from a sound transmitting apparatus and demodulating and amplifying the signal and using the earphone, a volume adjusting unit for adjusting the volume, and an earphone connecting terminalVoice receiving deviceConsisting ofWireless television broadcast listener.