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. 12, 2002
Filed:
Jul. 30, 1999
Shuzo Fujioka, Hyogo, JP;
Other;
Abstract
A random-number generating circuit comprising a plurality of shift registers synchronized with a clock and cascaded together, a circuit that obtains the sum of the outputs of more than one of the shift registers and inputs the obtained sum to the input terminal of the shift register on the first level, and a clock generating circuit that inputs a clock signal to each of the shift registers. One or more of the shift registers have external-signal input terminals and an addition circuit that adds bit data input through the external-signal input terminals to bit data of one or more of the bits stored within. The random-number generating circuit outputs as random-number data the bit data obtained from the addition by the addition circuit.