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, 2007
Filed:
Feb. 13, 2002
Noriyuki Kawaguchi, Sapporo, JP;
Satoshi Nakamura, Kawasaki, JP;
Kensuke Sawada, Kawasaki, JP;
Dai Kimura, Kawasaki, JP;
Tokuro Kubo, Kawasaki, JP;
Morihiko Minowa, Kawasaki, JP;
Noriyuki Kawaguchi, Sapporo, JP;
Satoshi Nakamura, Kawasaki, JP;
Kensuke Sawada, Kawasaki, JP;
Dai Kimura, Kawasaki, JP;
Tokuro Kubo, Kawasaki, JP;
Morihiko Minowa, Kawasaki, JP;
Fujitsu Limited, Kawsaki, JP;
Abstract
In a CDMA receiver for applying despread processing to direct wave or delayed waves that arrive via each path of multiple paths, applying synchronous detection processing to the despread signals obtained, combining the detection signals of respective paths and discriminating the received data on the basis of the combined signal, (1) a weighting unit provided for every path measures power of delayed received waves that arrive via its own path and, if the reception power is less than a set level (breakpoint level), subjects an output signal to weighting conforming to the reception power; (2) a RAKE combiner combines signals output from the weighting units of the respective paths; and (3) a data discrimination unit discriminates receive data based upon the output signal of the combiner.