Digital multi-channel voice processor for artificial cochlea

A voice processor and cochlear implant technology, applied in the fields of electronic information technology and medical equipment, can solve the problems of low integration, complex structure, simple function of voice processor, etc., and achieve the effect of reducing complexity and improving performance

Inactive Publication Date: 2005-01-05
梁华伟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the voice processor of the cochlear implant system generally adopts the frequency decomposition algorithm, and relies on a special filter chip or an analog circuit to complete the function of the decomposition filter bank, resulting in a voice processor with simple functions, complex structure, and low integration.

Method used

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  • Digital multi-channel voice processor for artificial cochlea
  • Digital multi-channel voice processor for artificial cochlea

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Embodiment Construction

[0016] The digital multi-channel speech processor for cochlear implant that the present invention proposes, its structural block diagram is as follows figure 1 As shown, it includes: a voice acquisition circuit composed of two microphones, used to collect two channels of voice or one voice and one noise signal; an automatic gain control circuit, used to adjust the dynamic range of the above voice signal; an analog-to-digital converter, used Convert the voice signal into a digital signal, digitize the modulated signal and feed it back to the digital signal processor; the digital signal processor is used to process the digital signal to generate a coded modulated signal; the modulator is used to Modulate the above modulated signal onto the set carrier frequency signal, and perform power amplification; the comparator is used to digitize the signal output by the modulator and feed it back to the signal processor; the computer interface circuit is used for the voice processor and C...

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Abstract

This invention is a digital multi-channel language processor use in artificial cochlea. This technology connects electronic technology and medical instrument. It contains the circuit of sound collector; control circuit of automatic gain. The turner of modulus can turn the voice signal to digital signal and feedback the digital signal to digital message processor. The processor can process this digital signal to produce modulated message after coded. The modulator can modulate the modulated message to carrier channel, and amplify its power. The comparers can feedback the digital modulated message to processor. The circuit of computer interface used to connect this processor to computer does not volatilize the memory, but storages the program of the digital message and the parameter of user of this voice processor.

Description

technical field [0001] The invention relates to a digital multi-channel voice processor for cochlear implants, belonging to the fields of electronic information technology and medical equipment. Background technique [0002] In medicine, patients with a hearing threshold above 90 decibels are collectively referred to as total deafness. The cause of total deafness in most patients is the loss of hair cells rather than the functional decline of the auditory nerve. The existence of the residual auditory nerve lays the foundation for cochlear implant technology to directly stimulate the auditory nerve with electric current. The cochlear implant system is a medical electronic device used for the treatment of sensory deafness. Its function is to complete the sound-to-electricity conversion instead of the patient, and directly stimulate the patient's auditory nerve with the electric pulse carrying the sound information, so that the patient can produce a sound with the same frequenc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F11/00H04R25/02
Inventor 梁华伟
Owner 梁华伟
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