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:
Apr. 17, 2001
Filed:
May. 14, 1998
Applicant:
Inventor:
Takayuki Nakano, Kawasaki, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03D 1/04 ; H03D 1/06 ; H03K 6/04 ; H03K 5/01 ; H04B 1/10 ;
U.S. Cl.
CPC ...
H03D 1/04 ; H03D 1/06 ; H03K 6/04 ; H03K 5/01 ; H04B 1/10 ;
Abstract
Waveform estimating section,observes the amplitude and phase of pilot signals outputted from pilot despreading section,, and estimates the amplitude, frequency and phase of the pilot signals having no interference. Sine wave generating section,generates pilot signals of sine wave of the estimated amplitude, frequency and phase. Coherent detecting section,corrects the phase shift of data signals outputted from data channel despreading section,, using the generated pilot signals.