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:
May. 20, 2008
Filed:
Oct. 17, 2002
Kazuo Nagatani, Kawasaki, JP;
Yasuyuki Oishi, Kawasaki, JP;
Hidenobu Fukumasa, Kawasaki, JP;
Hajime Hamada, Kawasaki, JP;
Yoshihiko Asano, Kawasaki, JP;
Kazuo Nagatani, Kawasaki, JP;
Yasuyuki Oishi, Kawasaki, JP;
Hidenobu Fukumasa, Kawasaki, JP;
Hajime Hamada, Kawasaki, JP;
Yoshihiko Asano, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A code multiplexing transmitting apparatus spread-spectrum modulates transmission data of a plurality of channels by spreading codes that differ from one another, combines the spread-spectrum signals of each of the channels and transmits the resultant spread-spectrum modulated signal. A spread-spectrum modulating unit for each channel includes a phase shifter for shifting, by a predetermined angle channel by channel, the phase of a position vector of the spread-spectrum modulated signal of each channel. As the result of such phase control, the phases of pilot signal portions of the spread-spectrum modulated signals of the respective channels are shifted relative to one another so that the peak values of the code-multiplexed signal can be suppressed.