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. 29, 2003
Filed:
Apr. 05, 1999
Hideto Suzuki, Tokyo, JP;
NEC Corporation, , JP;
Abstract
A DS-CDMA (Direct Sequence—Code Division Multiple Access) multi-user interference canceller is provided with a notifying unit for notifying symbol information, a delay of each path and transmission estimation value information of each path to other users, a correlation value calculator for calculating cross correlation values with spread code sequences of the other users in each user in advance, an interference calculator for calculating interference components of the other users on the basis of the information notified by the other users and the cross correlation values calculated in advance, and a subtracter for subtracting the interference components from the signal component of the present user, whereby the interference components are generated and cancelled at a symbol rate after a reception signal is subjected to despread.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile