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. 26, 2013
Filed:
Aug. 09, 2010
Shigeo Nara, Kanagawa, JP;
Shigeo Nara, Kanagawa, JP;
Fuji Xerox Co., Ltd., Tokyo, JP;
Abstract
The present invention provides a pseudo random signal generation circuit including: pattern signal output circuit including N stages of D flip-flops (DFF), and that outputs a pattern signal repeating bit patterns of 2−1 bits from the non-inverting terminal of the final stage DFF; a signal output circuit that outputs a signal expressing the bit pattern length every time 2−1 bits of the pattern signal are output; a selection signal output circuit that, based on the signal expressing the bit pattern length, outputs a selection signal for repeatedly selecting plural terminals, from plural terminals including the non-inverting terminals and the inverting terminals of the pattern signal output circuit, plural terminals at a time; and an output circuit that selects the signals output from the plural terminals according to the selection signal, and outputs the selected signal as a pseudo random signal.