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:
Mar. 19, 1996
Filed:
Apr. 25, 1994
Applicant:
Inventors:
Guoliang Shou, Tokyo, JP;
Weikang Yang, Tokyo, JP;
Sunao Takatori, Tokyo, JP;
Makoto Yamamoto, Tokyo, JP;
Assignees:
Yozan Inc., Tokyo, JP;
Sharp Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
36472401 ; 36472416 ;
Abstract
A filter device with memory test circuit easily executes a memory test inspite of single-bit data processing to 1 bit data. The filter device with a memory test circuit includes a memory test circuit between a memory means and a shift register, sequentially reads digital data and tests digital data at the external Central Processing Unit (CPU) after converting the data from parallel to serial at the shift register.