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:
Jun. 05, 2001
Filed:
Apr. 09, 1998
Sang Boh Yun, Sungnam-si, KR;
Mercury Corporation, Incheon, KR;
Abstract
The present invention relates to a parallel combinatory CDMA (PC-CDMA) system that transmits and receives data by applying a predetermined pseudo number (PN) code corresponding to a plurality of bits, and more particularly relates to a multi-carrier PC-CDMA system, enhancing its efficiency by mixing the PN codes corresponding to the plurality of bits with respective orthogonal frequencies. The transmitting part includes a plurality of mixers,to,for mixing respective PN codes outputted from a plurality of mappers,to,with frequency signals having an orthogonal feature and a receiving part including a plurality of mixers,to,for mixing received signals with the same frequency signals mixed at the transmitting part. Accordingly, it is possible to decrease the number of PN codes needed in a PC-CDMA system by correlating the mappers,to,of the transmitting part and correlator,to,and data detectors,to,of the receiving part through the mixers,and,independently.