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:
Mar. 03, 2015
Filed:
Aug. 23, 2013
Stmicroelectronics (Research & Development) Ltd., Bucks, GB;
Astrium Gmbh, Taufkirchen, DE;
STMicroelectronics (Research & Development) Ltd., Marlow, Bucks, GB;
Astrium GmbH, Taufkirchen, DE;
Abstract
Systems and methods for generating a CDMA signal s(t) comprising N components involves assigning to each of the N components one unique spreading sequence aselected from a set of M spreading sequences with M≧N, modulating the symbols dof each component on the assigned unique spreading sequence a, and combining the N symbols deach being spread with its own unique spreading sequence ato a CDMA signal s(t). The assigned spreading sequences aare selected such that all selected pairs within the set of N spreading sequences are orthogonal or very close to be orthogonal so that cross-correlation components between all spreading sequences aare close to zero or zero.