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:
Jan. 30, 2001
Filed:
Nov. 19, 1998
Hiroki Shinde, Kawasaki, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
Consumption power is reduced in a digital matched filter for determining a correlation value between a digital signal (I,) of 6 bits, which is synchronous with a clock, and a despreading code sequence (C,C,C,C,C,C,C,C,) which includes 8 despreading codes. First to eighth flip-flop sets (,) constituting a storage section (,) are sequentially selected clock by clock by a write selection circuit (,), and the digital signal (I,) is stored in the selected flip-flop set. The 8 despreading codes are stored in first to eighth code flip-flops (,), respectively, and are shifted in synchronism with the clock. Output signals of the first to eighth flip-flop sets are multiplied by output signals of the first to eighth code flip-flops in first to eighth multiplication circuits (,), respectively.