专用可编程语音编码电路的设计与实现  

Design of a Special Purpose Programmable Speech Encoding Chip and Its Implementation

作　　者：缪国清[1] 洪志良[1] 

机构地区：[1]复旦大学电子工程系

出　　处：《微电子学》1994年第4期22-26,共5页Microelectronics

摘　　要：在人工电子耳蜗系统中，专用可编程语音编码电路实现将语音特征信息包容错编码为传输脉冲，并按要求的传输格式发送编码脉冲。电路独立的指令系统保证了电路能够灵活实现系统所需的各种数据传送格式。电路的容错编码能力保证了传输数据有较强的抗干扰能力。本文介绍了该电路的功能、电路的指令集设计、电路结构和逻辑设计方法以及电路的版图设计过程，并讨论了电路芯片的测试结果。电路版图面积为４．５ｍｍ×４．５ｍｍ，包含１０００个等效门及４３个引脚。In the cochlear implant system.a special purpose programmable speech encoding chip is used to encode the speech signals into pulse sequences and transmit them out in a desired data format. With its inde-pendent instruction set. the chip is able to generate different data formats for the system. Its fault-tolerant en-coding ability makes it easy to generate pulse sequences with high reliability. Described in this papet are the chip′s function,the instruction set design,the circuit structure and its logic design,and the layout generation. Test results are discussed.The implemented chip occupies an area of 4.5mm×4.5mm containing 1000 equivalent gates and 43 I/O pads.

关 键 词：语音编码 耳窝植入系统 电路设计 

分 类 号：TN912.32[电子电信—通信与信息系统]