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:
Jul. 18, 1995
Filed:
Apr. 01, 1994
Tomio Yoshida, Sendai, JP;
Advantest Corporation, Nerima, JP;
Abstract
A generating polynomial and a parallel bit number p are input via an input part 21. In an operating control part 22, a k-th power A.sup.k of a characteristic polynomial of a pseudo-random pattern is obtained, then a matrix N.sup.k with rows corresponding to p bits of the k-th power A.sup.k and (n-p) columns not corresponding to the p bits on the said rows is obtained, and then k is obtained for which the rank of the matrix N.sup.k is p. A parallel pattern of p bits from p shift stages of a pseudo-random pattern generator having n shift stages is selected and held by a select/hold part 26. A drive control part 24 drives the select/hold part 26 to output the p-bit parallel pattern each time the pseudo-random pattern generator performs a k-bit shift operation.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile