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. 16, 1999
Filed:
Apr. 22, 1997
Tetsuji Kishi, Osaka, JP;
Yoshimichi Nagasaki, Kyoto, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
An image processor, included in a logic circuit unit, for executing an image processing of data according to the MPEG standard and the like, a memory circuit unit, whose input port is included in the logic circuit unit, for storing image processed data, and a memory control unit, included in the logic circuit unit, for controlling the input/output operation of the memory circuit unit are formed on a semiconductor substrate. Between the memory circuit unit and the memory control unit, a selector is interposed for selecting, in accordance with a test mode signal, an externally input first chip select control signal when the test mode signal is activated, and selecting a second chip select control signal output by a memory control circuit and outputting a chip select signal to the memory circuit unit when the test mode signal is deactivated.