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:
Feb. 18, 2003
Filed:
Nov. 26, 1999
Toshihiro Ishikawa, Yokohama, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
Shift register stores data read from data memory through data bus , and supplies a shift output to shift register . Shift register stores operation target data read from data memory through data bus , shifts operation target data one bit by one bit, and supplies operation target data to bit selection circuit . Bit selection circuit selects bit data, which is placed at a position designated by register , from data stored in shift register . Multi-input exclusive OR circuit executes exclusive OR operations of all bits of bit data output from bit selection circuit , simultaneously, and outputs an operation result of one bit to shift register . This makes it possible to efficiently perform convolutional code processing at high speed.