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:
Jul. 30, 2002
Filed:
Jun. 17, 1998
Changming Zhou, Tokyo, JP;
Xuping Zhou, Tokyo, JP;
Mamoru Sawahashi, Yokohama, JP;
Fumiyuki Adachi, Yokohama, JP;
Other;
Abstract
A signal reception apparatus for DS-CDMA communication system having a complex matched filter for despreading a received signal into I- and Q-components D and D of despread signal. D and D are input to a path selection portion for extracting a phase error in a pilot symbol block of the despread signal. A phase compensation signal is calculated according to the phase error in the portion An information symbol is compensated according to the phase compensation signal. An electrical power is calculated from an average of the phase compensation signal of several slots for selecting paths to be received. The selected paths are combined with phase synchronized by a rake combiner