The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 19, 2002
Filed:
Aug. 31, 2000
Yasushi Ueda, Ehime, JP;
Takahiro Watanabe, Ehime, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A signal processing apparatus in which an LSI includes a memory and a plurality of blocks for making access to the memory is provided with a trace control block for tracing in a specific region of the memory the history of access by a required memory access block based on a setting by a microcomputer so as to allow easy analysis of the cause in the event a trouble. Also, a quasi mediation block is provided in a mediation block which accepts a memory use request signal from other memory access block while tracing of access history is being performed and sends back a memory use approval signal without actually making access to an internal memory In the event of a trouble, an analysis of the cause can be easily made by reading a specific tracing region of the internal memory out from outside.