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:
Mar. 07, 2000
Filed:
Oct. 02, 1997
Applicant:
Inventors:
Tetsuya Kochi, Mukoh, JP;
Hiroaki Tanaka, Mishima-gun, JP;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B / ;
U.S. Cl.
CPC ...
375207 ; 375350 ; 455307 ;
Abstract
A spread-spectrum communication device which substantially eliminates a narrow-band interfering signal contained in a spread signal over a wide range of frequency and which presents a good S/N ratio in a despread signal. A magnetostatic filter is used to limit the narrow-band interfering signal along with part of the spread signal. The limited spread signal and narrow-band interfering signal are despread by a matched filter. A plurality of correlation peaks, which are derived from the same symbol in the spread signal and are contained in the despread signal, are synthesized in a rake synthesizer or a post-detection integrator receiver.