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. 14, 2003
Filed:
Jul. 07, 1999
Yoshinobu Haga, Kawasaki, JP;
Takushi Mikami, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
In a CDMA receiver for receiving a signal containing data that has been spread by a predetermined spreading code sequence, calculating a correlation value between a reference code sequence and a spread data sequence obtained by sampling the received signal at a predetermined sampling rate, and adopting, as despread start timing, the timing at which the correlation value is maximized, a reception-state detector detects the state of reception, a sampling controller decides sampling rate in conformity with the state of reception, a correlator calculates a correlation between a reference code sequence and a spread data sequence, which is obtained by sampling a received signal at the above-mentioned sampling rate, and a timing detector obtains the despread start timing at which the correlation value is maximized.