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:
Dec. 05, 2006
Filed:
Oct. 10, 2000
Yasutaka Ogawa, Sapporo, JP;
Takeo Ohgane, Sapporo, JP;
Toshihiko Nishimura, Sapporo, JP;
Masashi Iwami, Gifu, JP;
Jun Kitakado, Hashima, JP;
Yoshiharu Doi, Gifu, JP;
Yasutaka Ogawa, Sapporo, JP;
Takeo Ohgane, Sapporo, JP;
Toshihiko Nishimura, Sapporo, JP;
Masashi Iwami, Gifu, JP;
Jun Kitakado, Hashima, JP;
Yoshiharu Doi, Gifu, JP;
Japan as represented By President Of Hokkaido University, Sapporo, JP;
Sanyo Electric Co., Ltd., Moriguchi, JP;
Abstract
When once determined to be free of any demodulation error by an interference removing unit provided user by user, a replica signal calculated by the interference removing unit is subtracted from an input signal vector, and a calculated user signal is output as it is as a final user signal. When it is determined by the interference removing unit that there is a demodulation error, the user signal is again calculated by the interference removing unit of an interference canceller of a next stage. As subtraction of the replica signal corresponding to the user signal having a demodulation error from the input signal vector is inhibited, precision of the interference wave removal can be improved.