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Research on the Architecture of the Speech Recognition System and the Computer Aided Design System for Signal Processing LSIs.

语音识别系统体系结构和信号处理LSI计算机辅助设计系统研究。

基本信息

批准号：
61460135
负责人：
SHIRAI Katsuhiko
金额：
$ 2.5万
依托单位：
Waseda University
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (B)
财政年份：
1986
资助国家：
日本
起止时间：
1986 至 1987
项目状态：
已结题

项目摘要

In order to realize a high performance speech recognition system, techniques to refer large amounts of knowledge base in real time should be developed. In the actual application areas of speech recognition, not only high recognition rate but low cost is strongly requested. Considering both requirements, this research aimed to study a parallel processing architecture suitable for the speech recognition and LSI architecture design system which particularly intended to produce digital signal processing LSIs. As for the parallel processing, a special experimental system was developed as a multiprocessor system composed of Transputers which are special microcomputers with communication links. Many kinds of pattern matching processes in speech recognition can be performed concurrently by exchanging intermediate matching. The system is tested by the task of parge vocabulary words recognition. It was verified that the parallel processing could effectively combine several kinds of paradigms developed for the word recognition.The second objective of this research is to construct an architecture design system for LSIs. The input to this system is a specification description on the required function which is described by special high level specification language and the output is the hardware description at the register transfer level. LSIs can be produced from these decription by using the conventional CAD system. This study sdhowed a new possibility applying artificial intelligence technique to design problems.

为了实现高性能的语音识别系统，需要开发实时查阅大量知识库的技术。在语音识别的实际应用领域，不仅要求识别率高，而且要求低成本。考虑到这两种需求，本研究旨在研究一种适用于语音识别和LSI体系结构设计系统的并行处理体系结构，该体系结构专门用于产生数字信号处理LSI。在并行处理方面，开发了一个专用的实验系统，它是由带通信链路的专用微型计算机Transputer组成的多处理机系统。通过交换中间匹配，可以同时执行语音识别中的多种模式匹配处理。通过对PARGE词汇的识别实验，验证了该系统的有效性。实验结果表明，并行处理能够有效地结合多种词汇识别范式。本研究的第二个目标是构建一个面向词汇识别系统的体系结构设计系统。该系统的输入是对所需功能的规范描述，用专用高级规范语言描述，输出是寄存器传输级的硬件描述。利用传统的CAD系统，可以从这些描述中产生LSIS。这项研究展示了将人工智能技术应用于设计问题的新可能性。