KR0161412B1 - Frequency selective filtering hearing aid telephone - Google Patents

Abstract

The present invention relates to a telephone and a communication device, and more particularly, by selectively amplifying a tone (frequency) of a received voice signal to compensate for the hearing sensitivity of the hearing impaired so that the hearing impaired person can clearly hear the received voice. The present invention relates to a hearing aid telephone having an amplifier function for each tone and a frequency filtering function. The hearing aid auxiliary apparatus having a tone-specific amplification function and a frequency filtering function according to the present invention includes a central processing means including a memory unit, data input means connected to the central processing means, and inputting user data, and the central processing means. Data processing means for processing data output from the central processing means, and address processing for controlling output of the data processing means in accordance with an address signal of the central processing means connected to the central processing means and the data processing means. Means and an external voice signal are input, and are connected to the data processing means to include amplification unit for each tone of which the amplification degree of the voice signal is selectively controlled according to the data of the data processing means for each frequency band to clarify the voice that the hearing impaired person receives. The benefit of listening The.

Description

Hearing Aid with Voice Amplification and Frequency Filtering

FIG. 1a is a diagram showing the hearing characteristics of a normal person and a deaf person.

1B is a block diagram showing a conventional telephone.

FIG. 1C is a diagram showing frequency response characteristics (frequency response characteristics of a speech network) to voice signals of a conventional telephone.

2a is a block diagram showing an embodiment of a hearing aid auxiliary apparatus having a tone-specific amplification function and a frequency filtering function according to the present invention;

FIG. 2B is a diagram showing the frequency response characteristics of the tone wall amplifier of FIG. 2A. FIG.

FIG. 3A is a detailed view of the address processor of FIG. 2A. FIG.

FIG. 3B is a detailed view of the data processing unit in FIG. 2A. FIG.

FIG. 3C is a detailed view of the first frequency amplifier of the tone amplifiers in FIG. 2A. FIG.

4 is an external connection diagram showing a connection relationship with a conventional telephone when a hearing aid telephone auxiliary apparatus having a tone-by-tone amplifier function and a frequency filtering function according to the present invention is used as an external additional device.

5 is a block diagram showing an embodiment of a hearing aid telephone having a tone-specific amplification function and a frequency filtering function according to the present invention.

Figure 6 is a block diagram showing an embodiment of a wireless hearing aid portable device having an amplification function and a frequency filtering function according to the present invention.

* Explanation of the symbols according to the main parts of the drawings

20: Micom 22: Keypad

24: data processor 26: address processor

28: amplification unit for each tone 30: second amplifier

IN: Input terminal OUT: Output terminal

The present invention relates to a telephone and a communication device, and more particularly, by selectively amplifying a tone (frequency) of a received voice signal to compensate for the hearing sensitivity of the hearing impaired so that the hearing impaired person can clearly hear the received voice. The present invention relates to a hearing aid telephone having a tone-specific amplification function and a frequency filtering function.

In general, hearing impaired people have lower hearing characteristics than the general public, which makes it difficult to accurately hear the other party's voice on the phone. This was due to a problem caused by the conventional telephone uniformly amplifying the input voice signal.

FIG. 1A is a diagram showing hearing characteristics of a normal person and a hearing impaired person. FIG. 1B is a block diagram showing a conventional conventional telephone. FIG. 1C is a diagram showing frequency response characteristics of a voice signal of a conventional telephone. Referring to FIG. 1A, in general, a hearing characteristic graph h2 of a hearing impaired person has a hearing loss of about 20db at a specific frequency (for example, 250 Hz, 500 Hz, and 1 KHz) compared to a normal characteristic hearing characteristic graph h1. However, as shown in FIGS. 1B and 1C, the conventional telephone is designed to uniformly amplify the input voice signal without considering the hearing characteristics of the hearing impaired, so that noise and ringing sounds due to noise amplification It was difficult to hear clearly the voice of the other party. Here, the configuration and operation of the conventional telephone will be briefly described with reference to FIGS. 1B and 1C. In the conventional telephone, a reception signal LINe IN is applied to the rectifier 10 and the rectifier 10 is a microcomputer of the ringer 11. 15 is connected to the speech network 16, the keypad 14 is connected to the microcomputer 15 and the ringer 11, and the microcomputer 15 is connected to the speech network 16. In addition, the output of the linker 11 is applied to the speaker 12, and the speech network 16 is connected to the handset 17 for converting the electrical voice signal into an audible signal and to the talker 18 for converting the voice signal into an electrical signal. Connected.

Referring to the reception signal processing process of the conventional telephone having the configuration as described above, when the received signal LINE IN is input to the speech network 16, the speech network 16 amplifies the signal uniformly regardless of frequency and the handset. Is applied to (17). Here, the speech network 16 performs uniform amplification over the entire frequency band with response talk as shown in FIG. 1C. Therefore, as described above, it is difficult for the hearing impaired person to accurately recognize the other party's voice due to the noise and the ringing sound caused by the amplification of the noise.

In addition, conventional hearing-impaired telephones include high-power telephones that amplify received signals by 25 dB over the entire frequency band, and tele-coil telephones that add sound pressure by adding a tele-coil to the receiver. However, the high-power telephone and the tele-coil telephone as described above do not selectively amplify the received signal by tone (by frequency) but uniformly amplify it over the entire frequency band. There was a problem that the hearing impaired is difficult to correctly recognize the other party's voice.

Accordingly, an object of the present invention is to selectively amplify a received voice signal according to a tone (frequency) to compensate for a hearing impairment of the hearing impaired so that a person with a hearing impairment can clearly hear a received voice and frequency filtering. To provide a hearing aid auxiliary device having a function.

In addition, another object of the present invention is to selectively amplify the received voice signal according to the tone (frequency) in the electronic telephone to compensate for the hearing sensitivity of the hearing impaired by the tone so that the hearing impaired can hear exactly the received voice To provide a hearing aid having a function and a frequency filtering function.

It is still another object of the present invention to provide a radiotelephone equipped with a fixed device and a portable device, by selectively amplifying a received voice signal according to a tone (frequency) to compensate for the hearing characteristics of the hearing impaired voice. The present invention provides a wireless hearing aid mobile phone having a tone-specific amplification function and a frequency filtering function so that the sound can be heard accurately.

The present invention to achieve the above object,

A central processing means comprising a memory unit;

Data input means connected to said central processing means to input user data.

Data processing means connected to said central processing means and processing data output from said central processing means;

Address processing means connected to said central processing means and said data processing means for controlling the output of said data processing means in accordance with an address signal of said central processing means; And

An external sound signal is input and is connected to the data processing means, the amplification function for each tone and frequency characterized in that it comprises a tone-specific amplifier for selectively controlling the amplification degree for the voice signal according to the data of the data processing means Provide hearing aid auxiliary device with filtering function.

Preferably, the hearing aid auxiliary apparatus having a tone-specific amplification function and a frequency filtering function is further provided with a second amplifying means connected to the tone-specific amplification unit to further amplify the output signal of the sound tone-specific amplifier.

In the present invention, the data processing means preferably includes a plurality of flip-flops provided with an enable terminal.

In the present invention, the data processing means preferably includes a predetermined shift register.

In the present invention, it is preferable that the address processing means comprises a 3X8 decoder.

In the present invention, the address processing means preferably comprises a 4-bit single chip microcomputer.

Further, in the present invention, it is preferable that a plurality of tuning frequency amplifiers are provided with a gain adjusting electronic variable resistor or a resistor network analog switch, a tuning frequency setting capacitor, and a feedback resistor.

In the present invention, the tone amplifier for each tone includes an analog / digital converter for converting the external voice signal into a digital signal, a plurality of shift registers, a plurality of adders and a plurality of coefficient multipliers to amplify the digitally converted signal for each tone And a digital filter for frequency filtering and a digital / analog converter for converting the digital signal output from the digital filter into an analog signal.

In order to achieve the above object another object of the present invention is to provide a ringer for receiving an external signal to inform the user of the reception state;

Rectifying means for receiving the external signal as an input and rectifying the signal;

A speech network connected to said rectifying means for predetermined signal processing of said received signal; It is desirable to have a register.

In the present invention, it is preferable that the address processing means comprises a 3X8 decoder.

Further, in the present invention, the address processing means is preferably provided with a 4-bit single chip microcomputer.

In the present invention, it is preferable that a plurality of tuner amplifiers are provided with a gain adjusting electronic variable resistor or a resistor network analog switch, a tuning frequency setting capacitor, and a feedback frequency amplifier.

Further, in the present invention, the tone amplifier for each tone includes an analog / digital converter for converting the external voice signal into a digital signal, a plurality of shift registers, a plurality of adders and a plurality of coefficient multipliers, and the digitally converted signal for each tone. It is desirable to have a digital filter for amplifying and frequency filtering and a digital / analog converter for converting the digital signal output from the digital filter into an analog signal.

In addition, the present invention to achieve the above object, Tone ringer for receiving an external signal to inform the user of the reception state;

Rectifying means for receiving the external signal as an input and rectifying the signal;

A speech network to which the rectifying means is connected to process the received signal by a predetermined signal;

Tone-specific amplifying means connected to the speech network and selectively controlling the amplification degree for the output signal of the speech network for each frequency band;

One end of which is connected to an input of the speech network and the amplifying means for each tone and the other end is connected to an output of the amplifying means for each tone so that the normal mode and the amplifying mode for each tone are switched according to a user's selection;

A speaker connected to the mode switching switch unit to convert an electrical voice signal into an audible voice signal;

A microphone connected to the speech network to convert a user's voice signal into an electrical signal;

Data input means for inputting user input data; And a central processing unit connected to the data input unit to perform predetermined processing according to the user input data, and connected to the rectifying unit and the speech network to control them. Provide a hearing aid with a function.

In another aspect of the present invention, there is provided a radiotelephone having a fixing device for transmitting a signal received from an external device to a portable device and receiving and transmitting a transmission signal of the portable device to the external device. An antenna for receiving the transmitted level compression and frequency modulated signal;

An antenna switch connected to the antenna and switched according to a reception and transmission mode;

A frequency demodulation receiver for frequency demodulating the level compressed and frequency modulated signal connected to one end of the antenna switch;

An expander connected to the frequency demodulation receiver to level-extend the signal output from the frequency demodulation receiver;

A tone-specific amplifying means connected to the expander and selectively controlling the amplification degree of the output for each frequency band;

A mode switching switch unit having one end connected to an input of the expander and the amplifying means for each tone and the other end connected to an output of the amplifying means for each tone so that a normal mode and an amplification mode for each tone are switched according to a user's selection;

A voice amplifier connected to the mode switching switch to amplify a voice signal;

A speaker connected to the voice amplifier to convert an electrical voice signal into an audible voice signal;

A microphone for converting a user's voice signal into an electrical signal; A compressor connected to the microphone for level compression of the electrical voice signal;

A frequency modulation transmitter connected to the compressor for frequency-modulating the level-compressed signal in the compressor and connected to the antenna switch to output the frequency-modulated signal to the antenna;

Phase control means connected to said frequency demodulation receiving section and said frequency modulation transmitting section and performing predetermined phase control;

Data input means for inputting user input data; And

And a central processing means connected to said data input means for performing predetermined processing in accordance with said user input data and connected to said frequency demodulation receiver, said frequency modulation transmitter, and said phase control means to control them. Provided is a wireless hearing aid portable device having a star amplification function and a frequency filtering function.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

First, a hearing aid auxiliary apparatus having a tone-specific amplification function and a frequency filtering function according to the present invention will be described.

Figure 2a is a block diagram showing an embodiment of the hearing aid auxiliary apparatus having a tone-specific amplification function and a frequency filtering function according to the present invention.

Referring to FIG. 2A, the hearing aid auxiliary apparatus having the amplification function and the frequency filtering function according to the present invention includes a microcomputer 20 including a memory unit (not shown), and a user's data connected to the microcomputer 20. A keypad 22 for inputting the data, a data processor 24 connected to the keypad 22 and processing data (d0, d1, d3) output from the micom 20, the micom 20, and the An address processing unit connected to the data processing unit 24 and controlling the outputs DB0, DB1, DB2, DB3, DB4, DB5 of the data processing unit 24 according to the address signals A0, A1, A2 of the microcomputer 20. 26, an input terminal IN to which an external voice signal AS is input, and one end thereof is connected to the input terminal IN, and the other end thereof is connected to the data processor 24 so that the data processor 24 is connected. The amplification degree of the voice signal AS depends on the data output from DB0, DB1, DB2, DB3, DB4, DB5 A second amplification unit 30 connected to the tone-specific amplifier 28 and the tone-specific amplifier 28 which are selectively controlled for each band, to further amplify the output OS of the tone-specific amplifier 28. And an output terminal OUT for outputting the output of the second amplifier 30 to the outside. The tone-specific amplifier 28 includes a first frequency amplifier 280, a second frequency amplifier 282, a third frequency amplifier 284, a fourth frequency amplifier 286, a fifth frequency amplification The unit 288 and the sixth frequency amplifier 290 are connected in parallel, and the outputs DB0, DB1, DB2, DB3, DB4, DB5 of the data processor 24 are respectively the first frequency amplifier 280, It is connected to one end of the second frequency amplifier 282, the third frequency amplifier 284, the fourth frequency amplifier 286, the fifth frequency amplifier 288, and the sixth frequency amplifier 290. .

The operation of the hearing aid auxiliary apparatus having the amplifier function and the frequency filtering function for each tone structure configured as described above will be described next.

When a user inputs predetermined data to the microcomputer 20 using the keypad 22, the microcomputer 20 outputs predetermined address signals A0, A1, A2 by a predetermined program to the address processor 26. After the application, the internal data d0, d1, d2, which are preset according to the data input by the user, are output from the memory (not shown) provided in the microcomputer 20 and applied to the data processor 24. The address processor 26 performs a predetermined process according to the applied address signals A0, A1, A2 to apply the control signals S0, S1, S2, S3, S4, S5 to the data processor 24. The address processor 26 is a predetermined decoder that outputs the control signals S0, S1, S2, S3, S4, S5 so that one part of the data processor 24 is operated in accordance with the address signals A0, A1, A2. . According to the control signals S0, S1, S2, S3, S4, and S5, the data processor 24 controls the data d0, d1, d2 output from the microcomputer 20 in the tone amplifier 28. 1 frequency amplifier 280, 2nd frequency amplifier 282, 3rd frequency amplifier 284, 4th frequency amplifier 286, 5th frequency amplifier 288 and 6th frequency amplifier ( 290). According to the applied data (d0, d1, d2), a part of the tone amplifier 28 is operated as an amplifier having a predetermined gain so that the external voice signal AS input to the tone amplifier 28 is selected. By amplifying according to the gain, the external voice signal AS is selectively amplified according to the frequency band. FIG. 2B shows the frequency response characteristics of the respective frequency amplifiers in the tone amplifiers 28. FIG. Referring to FIG. 2B, since the response characteristic G1 of the first frequency amplifier 280 is a characteristic that is amplified by 250 Hz, the external voice signal AS is amplified by about 20 dB at 250 Hz, thereby deafening the hearing sensitivity near 250 Hz. It is possible to improve the hearing loss characteristics. Similarly, the second frequency amplifier 282. Third frequency amplifier 284. Fourth frequency amplifier 286. The response characteristics (G2, G3, G4, G5 G6) for the fifth frequency amplifier 288 and the sixth frequency amplifier 290 are each amplified by about 20 dB at 500 Hz, 1 kHz, 2 kHz, 4 kHz, and 8 kHz. When the amplifier is selectively operated, the external voice signal AS may be selectively amplified near a specific frequency to improve the hearing loss characteristics of the hearing impaired with a lower hearing sensitivity near each frequency. Such selective amplification may not be performed at only one frequency (eg 250 Hz), but comprehensive amplification may be performed at various frequencies and frequencies suitable for hearing characteristics of the deaf. For example, you can amplify 20 dB around 250 Hz and 500 Hz or 20 dB around 250 Hz and 500 Hz and 1 kHz. In addition, the second amplifier 30 is an amplifier for further amplifying the selectively amplified voice signal AS. 3A, 3B, and 3C are detailed views of the first frequency amplifier 280 of the address processor 26, the data processor 24, and the tone amplifier 28, respectively. Referring to FIG. 3A, the address processing unit 26 is composed of a 3X8 decoder DEC and output terminals Q0 and Q1 of the decoder DEC according to the address signals A0, A1 and A2 output from the microcomputer 20. Outputs 0 at only one of terminals (Q2, Q3, Q4, Q5, Q6, Q7) and 1 at all other terminals. Therefore, only one signal becomes 0 for the control signals S0, S1, S2, S3, S4, and S5 output from the decoder DEC. These control signals S0, S1, S2, S3, S4 and S5 are applied to the data processor 24 to make only one part of the data processor 24 operable. The data processor 24 of FIG. 3B is composed of six D flip-flops FF0, FF1, FF2, FF3, FF4, and FF5. Each input terminal D0, D1, D2 is connected to the data output terminals MD0, MD1, MD2 of the microcomputer 20, and output data d0, d1, d2 of the microcomputer 20 is applied. Connected to the enable terminals E0, E1, E2, E3, E4, and E5, the control signals S0, S1, S2, S3, S4, and S5 are applied, and the output terminals Q0, Q1, and D flip-flop respectively. Q2) denotes a first frequency amplifier 280, a second frequency amplifier 282, a third frequency amplifier 284, a fourth frequency amplifier 286, a fifth frequency amplifier 288 and a fifth frequency amplifier 280, respectively. It is connected to the six-frequency amplifier 290 and applies the output data d0, d1, d2 to the amplification unit connected to each other. In the first frequency amplifier 280 of FIG. 3C, the external audio signal AS is input to the non-inverting input terminal I1 of the amplifier 1C1, and is synchronized between the inverting input terminal 12 and the output terminal 01. The frequency setting capacitor C1 and the feedback resistor R1 are connected in parallel. In addition, a gain adjusting electronic variable resistor VR1 is connected to the inverting input terminal I2, and one end of the electronic variable resistor VR1 is grounded. In addition, data d0, d1, and d2 output from the first flip-flop FF1 of the day processing unit 24 are applied to the switching control terminals SC0, SC1, SC2 of the electronic variable resistor VR1. Here, the frequency amplified by the tuning frequency setting capacitor C1 is set, and the amplification gain is determined according to the resistance value of the electronic variable resistor VR1. Therefore, the internal switches S'0, S'1, S'2 are opened and closed by the data d0, d1, d2 input to the switching control terminals SC0, SC1, SC2 in the electronic variable resistor VR1. The resistance value of the electronic variable resistor VR1 according to the internal resistances R2, R3, and R4 is adjusted to change the overall amplification gain of the first frequency amplifier 280. In the same way, the remaining amplification units work the same, and the user can selectively amplify the desired frequency band.

In addition, the tone-specific amplifier 28 may include an analog / digital converter (not shown) for converting the voice signal AS into a digital signal, a plurality of shift registers (not shown), a plurality of adders (not shown), and the like. A digital filter (not shown) having a plurality of coefficient multipliers (not shown) to amplify and frequency-filter the digitally converted signal for each tone and a digital signal for converting the digital signal output from the digital filter (not shown) into analog signals. An analog converter (not shown) may be provided to digitally process the voice signal AS to suppress unnecessary sleep beforehand to obtain clean sound quality.

4 is an external connection diagram showing a connection relationship with a conventional telephone when a hearing aid telephone auxiliary apparatus having a tone-specific amplification function and a frequency filtering function according to the present invention is used as an external additional device.

Referring to FIG. 4, the main body 2 is connected to the input terminal IN of the hearing aid auxiliary apparatus 1 having the tone-specific amplification function and the frequency filtering function, and the handset 3 is the tone-specific amplifier function and frequency. It is connected to the output terminal OUT of the hearing aid auxiliary apparatus 1 having a filtering function. Thus, by simply installing the hearing aid auxiliary apparatus having the present invention tone-specific amplification function and frequency filtering function in the conventional telephone, the user can easily hear the clear voice signal of the other party.

Next, a hearing aid telephone having a tone-specific amplification function and a frequency filtering function according to the present invention will be described.

5 is a block diagram showing an embodiment of a hearing aid telephone having a tone-specific amplification function and a frequency filtering function according to the present invention.

Referring to FIG. 5, the hearing aid telephone having the amplification function and the frequency filtering function according to the present invention has a tone ringer 81 for receiving an external signal and informing the user of the reception state, and using the external signal as an input signal. A rectifier 86 for rectifying the signal, a speech network 84 connected to the rectifier 86 for predetermined signal processing, and an output signal of the speech network 84 connected to the speech network 84. One end is connected to the amplification means 4 for each tone, the amplification degree of which is selectively controlled for each frequency band, and the input terminal IN of the speech network 84 and the amplification means 4 for each tone, and the other end is It is connected to the output terminal (OUT) of the tone-specific amplifying means (4) and connected to the mode switching switch (92) and the mode switching switch (82) to switch between the normal mode and the tone-specific amplification mode according to the user's selection. A speaker 88 for converting a voice signal into an audible voice signal, a microphone 90 connected to the speech network 84 for converting a voice signal of the user into an electrical signal, and a keypad for inputting user input data And a microcomputer 82 connected to the keypad 80 and performing predetermined processing in accordance with the input data of the user, and connected to the rectifier 86 and the speech network 84 to control them.

The operation of the hearing aid telephone having the amplification function and the frequency filtering function configured as described above will be described next.

When the external signal LINE IN is inputted to the tone ringer 81, the tone ringer 81 notifies the reception of the signal LINE IN, and the external signal LINE IN is rectified by the rectifier 86 to allow the microcomputer ( 82) and speech network 84. In the normal mode, the mode switching switch 82 is switched to the speech network 82, so that the voice signal AS2 output from the speech network 84 is applied to the speaker 88 so that the voice signal is converted into an audible signal. In the amplification mode, the mode switching switch 82 is switched toward the output terminal OUT of the amplification means 4 for each tone so that the audio signal AS2 output from the speech network 84 is the amplification means for the tone amplification means 4. It is applied to the input terminal IN. The tone-specific amplifying means 4 selectively amplifies the applied voice signal AS2 for a specific frequency as described above and applies a signal whose hearing sensitivity is compensated to the speaker 88 through the output terminal OUT. Therefore, the user can hear the voice signal clearly received as well as the normal person because the audio signal compensated for the auditory characteristics is output through the speaker 88. Since the configuration and operation of the amplification means 4 for each tone are the same as those of the hearing aid auxiliary apparatus having the amplification function and the frequency filtering function described above, they will be omitted.

Next, a wireless hearing aid bonding apparatus having a tone-specific amplification function and a frequency filtering function according to the present invention will be described.

6 is a block diagram showing an embodiment of a wireless hearing aid portable apparatus having a tone-specific amplification function and a frequency filtering function according to the present invention.

Referring to FIG. 6, in the radiotelephone having a fixed device for transmitting an externally received signal to a portable device and receiving and transmitting a transmission signal of the portable device, the present invention provides amplification function and frequency for each tone. A wireless hearing aid portable device having a filtering function includes an antenna 50 for receiving a level compression and frequency modulated signal transmitted from the fixed device, and an antenna switch connected to the antenna 50 and switched according to a reception and transmission mode. A frequency demodulation receiver 54 which is connected to one end of the antenna switch 52 and frequency demodulates the received level compression and frequency modulated signal, and is connected to the frequency demodulation receiver 54 and the frequency An expander 60 for level-extending the signal output from the demodulation receiver 54, and the amplification degree for the output is connected for each frequency band. One end is connected to the tone-specific amplifying means 4 and the input IN of the expander 60 and the tone-specific amplifying means 4, and the other end of the tone-specific amplifying means 4 is connected. A mode switching switch 70 connected to an output OUT for switching between a normal mode and an amplification mode for each tone according to a user's selection, and a voice amplifier 72 connected to the mode switching switch 70 for amplifying voice; A speaker 78 connected to the voice amplifier 72 to convert an electrical voice signal into an audible voice signal, a microphone 68 to convert a user's voice signal into an electrical signal, and the microphone 68 A compressor 66 connected to the compressor 66 for level compression of the electrical voice signal; a frequency modulated signal connected to the compressor 66 for level compression in the compressor 66, and connected to the antenna switch 52; The frequency modulated signal to the antenna (5 And a phase control means 56 connected to the frequency demodulation receiver 54, the frequency demodulation receiver 54, and the frequency modulated transmitter 58 for performing a predetermined phase control, and user input data. The keypad 64 for input and the keypad 64 are connected to perform a predetermined process according to the input data of the user, and the frequency demodulation receiver 54, the frequency modulated transmitter 58, and the phase control means 56 It is provided with a microcomputer 62 connected to and controlling them.

The operation of the wireless hearing aid portable apparatus having the amplification function and the frequency filtering function configured as described above will be described next.

The signal output from the fixing device is a level compression and frequency modulated signal, which is input to the antenna 50 and input to the frequency demodulation receiver 54 via the antenna switch 52. The frequency demodulation receiver 54 demodulates the input signal and applies the demodulated signal to the expander 60.

The signal input to the decompressor 60 is level-extended by the decompressor 60 and applied to one end of the mode switching switch 70. In the normal mode, since the mode switching switch 70 is switched toward the expander 60, the level-extended signal is applied to the speaker 78 through the voice amplifier 72 to convert the voice signal into an audible signal. On the other hand, in the tone-specific amplification mode, since the mode switching switch 70 is switched to the output terminal OUT of the tone-specific amplifying means 4, the output terminal OUT of the tone-specific amplifying means 4 is the voice amplifier 72. ) Is connected. In addition, the signal output from the expander 60 is applied to the input terminal IN of the tone-specific amplifying means 4, and the applied signal is selectively amplified by a specific frequency as described above by the tone-specific amplifying means 4. And is applied to the speaker 78 through the output terminal OUT and the voice amplifier 72. Therefore, the user can hear the voice signal clearly received as well as the normal person because the voice signal compensated for the auditory characteristics is output through the speaker 78.

Since the configuration and operation of the amplification means 4 for each tone are the same as those of the hearing aid auxiliary apparatus having the amplification function and the frequency filtering function described above, they will be omitted.

As described above, a hearing aid having a tone-specific amplification function and a frequency filtering function according to the present invention selectively amplifies a tone (frequency) of a received voice signal (a hearing impaired person, an elderly hearing impaired person, a noise deaf person, a congenital hearing impaired person). By compensating for the hearing sensitivity, the hearing impaired person can clearly hear the received voice, and the non-hearing person, who is not deaf, can suppress the noise band so that the voice can be clearly heard during the call. have.

Although the present invention has been described with reference to specific embodiments, the present invention is not limited to the above embodiments, and may be changed by a predetermined circuit change and circuit simplification. It can be easily adapted to the device. In addition, the present invention can be modified or improved within the scope of ordinary knowledge of those skilled in the art.

Claims (12)

[Central processing means] a microcomputer 20 including a memory [part]; A [data input means] keypad 22 connected to the [central processing means] microcomputer 20 for inputting user data; A [data processing means] data processing unit 24 connected to the [central processing means] microcomputer 20 and processing data output from the [central processing means] microcomputer 20; Connected to the [central processing means] microcomputer 20 and the [data processing means] data processing unit 24 and according to the address signal of the [central processing means] microcom 20, the [data processing means] data processing unit 24 Address processing unit 26 for controlling the output of the " address processing unit " And an external audio signal is input and connected to the [data processing means] and the data processing unit 24 to output the amplification degree for the audio signal according to the data output from the data processing unit 24 of the data processing means. Hearing aid device having a tone-specific amplification function and a frequency filtering function, characterized in that it comprises a tone-specific amplifier 28 is selectively controlled for each frequency band. 2. The hearing aid auxiliary apparatus having the amplification function and the frequency filtering function for each of the tones is connected to the amplification part 28 to amplify the output signal of the amplification part 28. Hearing aid assistance device having a tone-specific amplifier function and a frequency filtering function, characterized in that it further comprises a second amplification unit (30). 2. The hearing aid auxiliary apparatus as claimed in claim 1, wherein the data processing unit has a plurality of flip-flops having an enable terminal. . 2. The hearing aid auxiliary apparatus as claimed in claim 1, wherein the data processing means has a predetermined shift register. 2. The hearing aid auxiliary apparatus as claimed in claim 1, wherein the address processing unit is a 3X8 decoder. 2. The hearing aid auxiliary apparatus as claimed in claim 1, wherein the address processing unit comprises a 4-bit single chip microcomputer. The tone-by-tone amplifier according to claim 1, wherein the tone amplifier 28 has a plurality of tuning frequency amplifiers connected in parallel with a gain adjusting variable resistor, a tuning frequency setting capacitor, and a feedback resistor. Hearing aids with amplification and frequency filtering. The digital amplifier of claim 1, wherein the tone amplifier 28 includes an analog / digital converter for converting the external voice signal into a digital signal, a plurality of shift registers, a plurality of adders, and a plurality of coefficient multipliers. A hearing aid telephone having a tone function and a frequency filtering function, comprising: a digital filter for amplifying a signal for each tone and frequency filtering, and a digital / analog converter for converting a digital signal output from the digital filter into an analog signal Auxiliary device. A tone ringer 81 which receives an external signal and informs the user of the reception state; [Rectifying means] rectifier 86 for rectifying the signal by receiving the external signal as an input; A speech network (84) connected to the [rectifying means] rectifier (81) for processing the received signal by a predetermined signal; Tone-specific amplifying means (4) connected to the speech network (84) for selectively controlling the amplification degree for the output signal of the speech network (84) for each frequency band; One end thereof is connected to an output of the speech network 84 and an input of the amplifying means 4 for each tone, and the other end is connected to an output of the amplifying means 4 for each tone so that a normal mode and a tone are selected according to a user's selection. A mode switching switch [unit] 92 in which a star amplification mode is switched; A speaker 88 connected to the mode switching switch [unit] 92 to convert an electrical voice signal into an audible voice signal; A microphone 90 connected to the speech network 84 for converting a user's voice signal into an electrical signal; A [data input means] keypad 80 for inputting user input data; And connected to the [data input means] keypad 80 to perform predetermined processing according to the input data of the user and to the [rectifying means] rectifier 86 and the speech network 84 to control them. Central processing means] a hearing aid telephone having a tone-specific amplifier function and a frequency filtering function, characterized in that it comprises a microcomputer (82). 10. The apparatus according to claim 9, wherein the tone-specific amplifying means (4) comprises: [a central processing means] a microcomputer 20 including a memory [unit]; A [data input means] keypad 22 connected to the [central processing means] microcomputer 20 for inputting user data; A [data processing means] data processing section 24 connected to the [central processing means] microcomputer 20 and processing data output from the [central processing means] microcomputer 20; The [data processing means] data processor 24 is connected to the [central processing means] microcomputer 20 and the [data processing means] data processing unit 24 in accordance with the address signal of the [central processing means] microcom 20. Address processing unit 26 for controlling the output of the " address processing unit " And an output signal of the speech network 84 is input, and is connected to the [data processing means] data processing unit 24 so that an amplification degree for the input signal according to the data of the [data processing means] data processing unit 24 is obtained. Hearing aid having a tone-specific amplification function and a frequency filtering function, characterized in that it comprises a tone-specific amplifier 28 selectively controlled for each frequency band. A radiotelephone having a fixing device for transmitting a signal received from an external device to a portable device, and receiving and transmitting a transmission signal of the portable device to the outside, wherein the level-compressed and frequency-modulated signal transmitted from the fixed device is received. An antenna 50; An antenna switch 52 connected to the antenna 50 and switching in accordance with a reception and transmission mode; A frequency demodulation receiver (54) which is connected to one end of the antenna switch (52) and frequency demodulates the received level compression and frequency modulated signal; An expander (60) connected to the frequency demodulation receiver (54) for level-extending the signal output from the frequency demodulation receiver (54); A tone-specific amplifying means (4) connected to the expander (60) to selectively control the amplification degree for the output of each band; One end thereof is connected to the input of the expander 60 and the amplification means 4 for each tone, and the other end is connected to the output of the amplification means 4 for each tone so that the normal mode and the amplification mode for each tone are selected according to a user's selection. A mode switching switch [unit] 70 to be switched; A voice amplifier 72 connected to the mode switching switch [unit] 70 for amplifying a voice signal; A speaker 78 connected to the voice amplifier 72 to convert an electrical voice signal into an audible voice signal; A microphone 68 for converting a user's voice signal into an electrical signal; A compressor (66) connected to the microphone (68) for level-compressing the electrical voice signal; A frequency modulation transmitter 58 connected to the compressor 66 to frequency modulate the level-compressed signal at the compressor 66 and connected to the antenna switch 52 to output the frequency-modulated signal to the antenna 50. ); Phase control means (56) connected to said frequency demodulation receiving section (54) and said frequency modulation transmitting section (58) and performing predetermined phase control; A [data input means] keypad 64 for inputting user input data; And the [data input means] keypad 64 to perform a predetermined process according to the input data of the user, and to the frequency demodulation receiver 54, the frequency modulated transmitter 58, and the phase control means 56. [Central processing means] microcommunication device for controlling and controlling them, characterized in that it comprises a microcomputer (62), and a hearing aid portable device having a frequency filtering function. 12. The apparatus according to claim 11, wherein the tone-specific amplifying means (4) comprises: [central processing means] a microcomputer 20 including a memory [unit]; A [data input means] keypad 22 connected to the [central processing means] microcomputer 20 for inputting user data; A [data processing means] data processing section 24 connected to the [central processing means] microcomputer 20 and processing data output from the [central processing means] microcomputer 20; Connected to the [central processing means] microcomputer 20 and the [data processing means] data processing unit 24 and according to the address signal of the [central processing means] microcom 20, the [data processing means] data processing unit 24 Address processing unit 26 for controlling the output of the " address processing unit " And an output signal of the expander 60 is input and connected to the [data processing means] data processing unit 24 so that the amplification degree for the input signal is in accordance with the data of the [data processing unit] data processing unit 24. Wireless hearing aid portable device having a tone-specific amplification function and frequency filtering function, characterized in that it comprises a tone-specific amplifier 28 is selectively controlled for each frequency band.