KR102343646B1 - Hearing system of magnetic induction loop type and magnetic signal producing advertisement panel - Google Patents

Abstract

The present invention relates to a technology in which a hearing terminal receives an FM radio signal from a transmitter that has received sound information of a speaker and forms a self-induction signal. To this end, the present invention is a transmitter for receiving sound information from a speaker, converting the sound information into an FM electromagnetic wave signal and transmitting it wirelessly; and a hearing terminal that receives the FM electromagnetic wave signal from the transmitter, converts the FM electromagnetic wave signal into a sound wave signal, and provides it to a listener, wherein the hearing terminal receives the FM electromagnetic wave signal and a current corresponding to the FM electromagnetic wave signal a receiver that generates a signal; a first coil having a loop shape and receiving a current signal from a receiver to generate a magnetic signal corresponding to the current signal; and a speaker provided with a second coil to generate an induced magnetic signal from the first coil and amplify a sound wave signal converted based on the induced magnetic signal to provide sound information; do.
Accordingly, in the present invention, there is no need to install a built-in loop cable on the ceiling or floor of a public institution, reducing installation and repair costs, and providing sound information of a speaker to a plurality of listeners without being limited to a loop zone. In addition, sound information can be extended and provided to nearby smartphones, and high-quality sound information can be delivered while saving battery power.

Description

Hearing system of magnetic induction loop type and magnetic signal generating advertisement panel using same

The present invention relates to a magnetic induction loop type hearing system and a magnetic signal generating advertisement panel using the same, and more specifically, to a technology in which a hearing terminal receives an FM radio signal from a transmitter that receives sound information of a speaker and forms a magnetic induction signal. it's about

Recently, in public places such as airports, schools, conference halls, etc. where ambient noise is frequent and the distance between the speaker and listener is long, magnetic induction loop-type hearing systems are attracting attention to promote smooth communication between the speaker and listener.

The magnetic induction loop-type hearing system currently being used installs a loop cable (loop coil) on the floor or ceiling of a public place and flows a current containing the sound information of the broadcaster through the loop cable to receive the magnetic induction signal generated by the hearing aid. A listener wearing a cochlear implant receives and delivers broadcast sound information. In some developed countries, it is mandatory to install such a hearing system in public places, and it has been enacted and operated by law.

However, in the case of this type of hearing system, it is necessary to install a built-in loop cable in the floor or ceiling, so a huge cost is required, and induction magnetism is formed only in the loop cable. There is a problem in that broadcast sound information is received. In addition, it is difficult to renovate and repair the once installed loop cable, and it takes a lot of money and causes inconvenience.

Therefore, there is an urgent need to develop a system that uses a magnetic induction type technology, but allows a listener to smoothly listen to the speaker's broadcast information in a public place without the cost and inconvenience described above.

Korean Patent Publication (Registration Publication No.: 10-0872736, "Method and system for selectively coupling a communication unit to a hearing power enhancing device") discloses a method for selectively coupling a communication unit to a hearing power enhancing device to enhance hearing ability. Although disclosed, there is a technology in which a hearing aid terminal receives a wireless FM signal from a transmitter.

An object of the present invention is to enable a listener to smoothly listen to a speaker's broadcast information without installing a loop cable, thereby eliminating additional costs and inconveniences due to the installation cost of the loop cable and the expansion construction.

In order to achieve the above object, the present invention is a transmitter that receives sound information from a speaker, converts the sound information into an FM electromagnetic wave signal and transmits it wirelessly; and a hearing terminal that receives the FM electromagnetic wave signal from the transmitter, converts the FM electromagnetic wave signal into a sound wave signal, and provides it to the listener,

The hearing terminal,

a receiver for receiving the FM electromagnetic wave signal and generating a current signal corresponding to the FM electromagnetic wave signal; a first coil having a loop shape and receiving a current signal from a receiver to generate a magnetic signal corresponding to the current signal; and a speaker provided with a second coil to generate an induced magnetic signal from the first coil and amplify a sound wave signal converted based on the induced magnetic signal to provide sound information; do.

Preferably, the transmitter is provided with a multi-channel function capable of generating a plurality of frequencies, and automatically searches for and matches a frequency compatible with a region or country.

The receiver may further include a Bluetooth transmission module, and transmit the FM electromagnetic wave signal to a nearby smart phone having a Bluetooth reception module through the Bluetooth transmission module.

According to the present invention, further, a signal receiving unit for receiving the signal expressed from the transmitter; an advertisement panel unit for displaying advertisements; a corresponding current generating unit forming a loop on the rear surface of the advertisement panel unit; It provides a magnetic signal generating advertisement panel for the disabled, comprising a control unit for generating a magnetic signal by generating a corresponding current to the corresponding current generating unit based on the signal received by the signal receiving unit.

The self-signal generating advertisement panel includes an advertisement sound signal generation unit for generating an advertisement sound signal corresponding to the advertisement, and the control unit generates a corresponding current corresponding to the advertisement sound signal through the corresponding current generation unit, the signal output from the transmitter When receiving, it is preferable to generate a magnetic signal by generating a corresponding current corresponding to the expressed signal.

The self-signal generating advertisement panel for the disabled includes a storage unit for storing various data, and the control unit receives an expression signal including a ment-specific code from the transmitter, stores the expressed signal in the storage unit, and receives a ment-specific code from the transmitter In one case, it is possible to generate a magnetic signal by generating a corresponding current in the corresponding current generator on the basis of an expression signal corresponding to the unique code of the ment.

The present invention eliminates the need to install a loop cable built-in on the ceiling or floor of a public institution, reducing installation and repair costs, and providing sound information of a speaker to a plurality of listeners without being limited to a roof zone. In addition, sound information can be extended and provided to nearby smartphones, and high-quality sound information can be delivered while saving battery power.

1 is a view for explaining a hearing system according to an embodiment;
2 is a view for explaining an appearance of a hearing terminal according to an embodiment;
3 is a diagram illustrating a transmitter with functions in various modes of operation;
4 and 5 are block diagrams for explaining the configuration of a receiver according to the present invention;
6 is a configuration diagram for explaining the configuration of a self-signal generating advertisement panel according to the present invention;
7 is an exemplary view showing an example of the appearance of a self-signal generating advertisement panel according to the present invention.

The configuration and operation of specific embodiments according to the present invention will be described in detail with reference to the drawings.

1 is a view for explaining a hearing system according to an embodiment. As shown, the hearing system 100 may be configured to include a transmitter 10 and a hearing terminal 20 .

The transmitter 10 may receive sound information from the speaker 1, modulate the sound information into an FM electromagnetic wave signal, and transmit it wirelessly. The speaker can be not only a person, but also an audio device that generates sound.

The transmitter may be driven by receiving power from a commercial power source (eg, 220V or 110V), or may be driven with a built-in battery. The battery may be a lithium ion battery and may be charged.

The transmitter 10 may receive sound information by wire or wirelessly from a microphone or an audio device used by the speaker, and the received sound information may be modulated into an FM electromagnetic wave signal.

The transmitter has a memory 3 to store various application programs, and the controller 4 can drive the application programs.

The transmitter is equipped with a multi-channel (eg, 10 channels) function capable of generating a plurality of frequencies, and can automatically search and match frequencies compatible with a region or country. The radio transmission frequency of the transmitter may be 2.4 GHz or 216 to 217 MHz, and various other frequencies may be applied.

The transmitter can transmit FM electromagnetic wave signals wirelessly, and the maximum transmission distance can be tens to hundreds of meters. The transmitter may be installed around a speaker, a microphone, or a broadcast speaker, and in some cases, a plurality of transmitters may be installed, and it is preferable to be used while being attached to a ceiling or wall.

The hearing terminal 20 may receive the FM electromagnetic wave signal from the transmitter 10 , convert the FM electromagnetic wave signal into a sound wave signal, and provide it to the listener 2 .

The hearing terminal 20 may be configured to include a speaker 23 including a receiver 21 , a first coil 22 , and a second coil 23 - 1 .

4 and 5 , the receiver 21 may receive an FM electromagnetic wave signal and generate a current signal corresponding to the FM electromagnetic wave signal. The current may be alternating current (AC).

The receiver 21 further includes a Bluetooth transmission module 21-1, and can transmit the FM electromagnetic wave signal to a peripheral smartphone 300 having a Bluetooth reception module through the Bluetooth transmission module, and the smartphone ( 300) can receive a signal.

The radio reception frequency of the receiver 21 may be 2.4 GHz or 216 to 217 MHz, and various other frequencies may be applied. The receiver has a built-in rechargeable lithium-ion battery. The battery may have certain specifications (eg, rated voltage is 3.7 V, DC5V/500 & 1,000Ma).

The receiver 21 may transmit sound information to the speaker by further having a built-in microphone or a port capable of connecting to the microphone.

The first coil 22 may have a loop shape and may receive a current from a receiver to generate a magnetic signal corresponding to the current. The first coil preferably has a necklace shape that can be worn around the listener's neck.

When a current flows through the first coil, a magnetic field is formed in the direction normal to the loop by Ampere's Law of clockwise screw.

The speaker 23 is provided with a second coil, such as a T-coil, so that a magnetic signal is induced from the first coil, reproduces a current signal through the magnetic signal, and converts the current signal into a sound wave signal. It is possible to provide sound information to the listener. The speaker may be additionally provided with a signal processing unit (not shown) to perform such a reproduction and conversion function. The current may be alternating current (AC).

The speaker 23 preferably has a size and shape that can be inserted into the listener's ears.

There may be a plurality of hearing terminals 20, and a plurality of listeners may listen to the same (broadcast) sound information, and a plurality of listeners may be grouped to listen to different sound information for each group. This can be accomplished with a multi-channel function. This can provide relevant information to relevant listeners, increasing efficiency and maintaining confidentiality.

2 is a view for explaining an appearance of a hearing terminal according to an embodiment. As shown, the hearing terminal 20 includes a receiver 21 , a first coil 22 , and a speaker 23 . The receiver may include a Bluetooth transmission module, and the speaker may include a second coil.

The first coil preferably has a necklace shape that can be worn around the listener's neck.

When a current flows through the first coil, a magnetic field is formed in the direction normal to the loop by Ampere's Law of clockwise screw. In order for the magnetic signal generated in the first coil to reach the listener's ear, the current i flowing in the first coil preferably flows in a counter-clockwise direction.

3 is a view for explaining a transmitter having functions of various operating modes. As shown, the transmitter (particularly, a battery-powered transmitter) includes a 'sleeping mode' that reduces power consumption in a (time) section in which signal transmission and reception is not performed, and a section in which signal transmission and reception is performed. It can be divided into an 'active mode' in which relatively strong power is consumed.

According to an embodiment, the transition from the sleeping mode to the active mode is performed when the transmitter receives a wake-up signal. The wake-up signal may be controlled to be generated when the signal received from the speaker is greater than or equal to a predetermined threshold (DB). This eliminates the need for the speaker or user to manually power on/off the transmitter, and prevents the transmitter from switching to active mode due to ambient noise.

According to another embodiment, the transition from the active mode to the sleeping mode may be made by the presence of a waiting period. The waiting period may mean a waiting period in which the transmitter does not receive sound information from the speaker for a certain period of time. The waiting period may be set in advance by a user or manufacturer of the transmitter and input and stored in the transmitter. When the standby period ends, it can be controlled to automatically switch from the active mode to the sleeping mode. Accordingly, it is possible to prevent unnecessary consumption of the battery.

In order for the transmitter to be driven in the various modes described above, an application program may be stored in the memory unit 3 of the transmitter and the driving operation may be controlled by the controller 4 .

According to another exemplary embodiment, the transmitter may further include a function of filtering noise excluding the speaker's sound information in the active mode. As a result, the voice of the listener sitting in the front seat in the lecture hall is not transmitted to other listeners.

A self-signal generating advertisement panel will be described with reference to FIGS. 6 to 8 .

The self-signal generating advertisement panel 200 according to this embodiment includes a signal receiving unit 210 , an advertisement panel unit 220 , a corresponding current generating unit 230 , a control unit 240 , a storage unit 250 , a voice recognition unit ( 260) is included.

The signal receiving unit 210 serves as an interface for receiving the expressed signal from the transmitter. The displayed signal may be a wired or wireless signal, for example, an FM wireless signal, a Bluetooth signal, or the like. In addition, the expressed signal may include voice waveform data, and may include digital sampling data.

The advertisement panel unit 220 serves to display a picture, a moving picture, etc. capable of delivering information, and may include a thin film display such as an LCD or an OLED when displaying a moving picture.

The corresponding current generating unit 230 serves to generate a magnetic field by flowing a current according to the control of the control unit adjacent to the advertisement panel unit. The corresponding current generating unit 230 may be located on the rear side of the advertisement panel unit 220, or may be provided in a loop shape while being wrapped along the outer circumferential surface of the advertisement panel unit.

The control unit generates a corresponding current to the corresponding current generator based on the expression signal received from the transmitter. Then, a magnetic field is generated according to the corresponding current, and a magnetic signal is transmitted to the front of the advertisement panel.

When a user wearing the speaker having the second coil described above is positioned in front of the advertisement panel, an induced current flows through the second coil by the magnetic signal transmitted from the advertisement panel, and the speaker converts the induced current into sound waves. It is amplified and transmitted.

On the other hand, the expression signal may be configured to include a unique ment code and ment information. The ment-specific code serves as identification information for corresponding ment-information, and the ment-information may correspond to a voice signal output to a listener.

The transmitter designates and transmits a unique message code for specific message information. However, not all expressed signals have a unique message code. The speaker or manager can designate a unique code for a specific comment.

When the control unit 240 of the advertisement panel receives the expression signal including the ment-specific code, it stores the expression signal in the storage unit 250 and generates a corresponding current corresponding to the ment-information except for the ment-specific code.

Later, the transmitter transmits only a specific message-specific code. At this time, the control unit of the advertisement panel retrieves the message information corresponding to the message-specific code from the storage unit and generates a corresponding current corresponding to the message information. Accordingly, the transmitter reduces the amount of data to be transmitted, thereby reducing the communication error rate and saving the battery.

The control unit may display a specific advertisement to the user in front through the advertisement panel, search the storage unit to retrieve an advertisement sound signal corresponding to the specific advertisement, and generate a corresponding current corresponding to the advertisement sound signal through the corresponding current generator. generate In this state, a user who wears the speaker according to the present invention to the ear can hear the sound through the speaker in front of the advertisement panel according to the present invention.

At this time, when the signal receiving unit receives the expression signal transmitted from the transmitter, the control unit stops the generation of a corresponding current corresponding to the advertisement sound signal and generates a corresponding current corresponding to the expression signal to generate a magnetic signal.

On the other hand, the corresponding current generating unit may be provided in plurality. At this time, it is preferable that the magnetic signal generated by the corresponding current generator has a frequency of a different band. For example, the first corresponding current generating unit may generate a corresponding current corresponding to the advertisement sound signal, and the second corresponding current generating unit may generate a current corresponding to the displayed signal transmitted from the transmitter.

The receiver used by the user may select a magnetic signal corresponding to a plurality of frequencies and convert it into a sound wave signal.

The voice recognition unit 260 analyzes the voice using the expressed signal transmitted from the transmitter, and displays the text corresponding to the analyzed voice on the advertisement panel. Therefore, by transmitting the magnetic signal by the corresponding current generator and displaying the text corresponding to the transmitted voice on the advertisement panel at the same time, information can be transmitted through both voice and sight, so that even the physically handicapped can easily deliver information There are advantages to getting.

Although the above has been described with reference to the embodiments of the present invention, those of ordinary skill in the art can variously modify and modify the present invention within the scope without departing from the spirit and scope of the present invention described in the claims below. You will understand that it can be changed.

100: hearing system 1: speaker
2: listener 3: memory
4: control unit 10: transmitter
20: hearing terminal 21: receiver
21-1: Bluetooth transmission module 22: first coil
23: speaker 23-1: second coil
200: advertisement panel 210: signal receiver
220: advertisement panel unit 230: corresponding current generation unit
240: control unit 250: storage unit
260: voice recognition unit 300: smartphone

Claims (6)

delete delete delete A signal receiving unit for receiving an expression signal from the transmitter;
Advertisement panel unit hanging on the wall;
a corresponding current generating unit forming a loop on the outer peripheral surface or the rear surface of the advertisement panel unit;
an advertisement sound signal generating unit generating an advertisement sound signal corresponding to the advertisement;
The expressed signal transmitted from the transmitter is a voice signal, and a voice recognition unit for analyzing the voice signal and displaying the analyzed voice on the advertisement panel unit;
and a control unit for generating a magnetic signal by generating a corresponding current corresponding to the voice signal in the corresponding current generating unit using the voice signal analyzed by the voice recognition unit,
The control unit generates a corresponding current corresponding to the advertisement sound signal through the corresponding current generating unit, but upon receiving the expression signal from the transmitter, stops the generation of the corresponding current corresponding to the advertisement sound signal and generates a corresponding current corresponding to the expression signal A magnetic signal generating advertisement panel that generates a magnetic signal by generating it.
delete 5. The method of claim 4,
The magnetic signal generating advertisement panel for the disabled includes a storage unit for storing various data,
When the control unit receives an expression signal including a ment-specific code from the transmitter, it stores the expression signal in the storage unit, and when receiving the ment-specific code from the transmitter, the corresponding current is generated based on the expression signal corresponding to the ment-specific code A magnetic signal generating advertisement panel, characterized in that the magnetic signal is generated by generating a corresponding current in the unit.

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