Two-way multi-channel artificial cochlea system with on-chip signal processor

A signal processor and cochlear implant technology, applied in the fields of electronic information technology and medical devices, can solve problems such as low energy transmission efficiency, affecting system performance, and insufficient data accuracy, and achieve powerful in vivo data processing capabilities, small size, and high precision Effect

Inactive Publication Date: 2006-02-15
TSINGHUA UNIV
View PDF0 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the large number of electrodes and the high stimulation frequency, the amount of data transmitted is often large and requires a large amount of bandwidth (usually on the order of hundreds of KHz or even MHz), which will inevitably lead to insufficient data accuracy and energy transmission efficiency when the carrier frequency is limited. low, thereby affecting the performance of the system

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Two-way multi-channel artificial cochlea system with on-chip signal processor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] The two-way multi-channel cochlear implant system with on-chip signal processor proposed by the present invention has a structural block diagram as figure 1 shown. Its external circuit includes: sound collection unit, automatic gain control unit, computer interface unit, modulator, comparator and external antenna; internal circuit includes: internal antenna, rectification and filtering unit, clock generation unit, demodulator, analog-to-digital converter , a digital signal processor, a reverse data output unit, a digital-to-analog converter, a voltage-controlled current source group and a switch matrix; the circuit in the body is connected to the auditory nerve through the electrode group.

[0027] The working principle of the system is described below. Under normal working conditions, the sound acquisition unit of the external circuit first converts the sound into an analog electrical signal, and after being amplified by the automatic gain control unit, the modulator ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a bidirectional digital modulation multi-channel manual cochlear system, pertaining to the arts of electronic information technology and medical appliance. The system comprises external and internal circuits and electrodes. The external circuit is for collecting sound signal and sending to the internal circuit after enlarging, digitalizing and modulating in wireless way, at the same time, providing interface for programming and measuring the internal circuit.< The internal circuit demodulates the received signal, and deals the demodulated data by the built-in digital signal-processing unit, to control the outlet of electrode assemblies, program on line or provide reversal results. The system integrates the low-power consumption digital signal-processing unit to the internal circuit, so the external circuit only sends narrow range sound signal, to cancel the width limitation of wireless transmission band, and improve the accuracy of dealing. Moreover, the system provides with remote updating.

Description

technical field [0001] The invention relates to a two-way multi-channel cochlear artificial system with an on-chip signal processor, 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 damage of hair cells rather than the functional decline of auditory nerve. A cochlear implant is a medical electronic device used to treat sensory deafness. Its function is to replace the diseased hair cells to complete the acoustic-electric conversion, and stimulate the remaining auditory nerve with electrical signals with sound information, so that the patient can produce real hearing. Feel, so as to achieve the purpose of restoring the patient's hearing. At present, the voice processor of the cochlear implant system generally adopts the frequency decomposition algor...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): A61F11/04H04R3/00
Inventor 王志华麦宋平张春李冬梅
Owner TSINGHUA UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap