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:
Sep. 06, 1994
Filed:
Aug. 02, 1993
Applicant:
Inventor:
Edward K Lee, Sunrise, FL (US);
Assignee:
Motorola, Inc., Schaumburg, IL (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04K / ;
U.S. Cl.
CPC ...
375-1 ;
Abstract
In an adaptive CDMA receiver (20), a DS-SS received signal and a reference signal are equalized by minimizing the error between them the received signal includes a desired DS-SS communication signal comprising binary bits coded with spreading chip sequences. The received signal is sampled at a chip rate to produce sampled received signals which are correlated with each other. The received samples are de-correlated by employing an orthogonal transformation algorithm to provide de-correlated elements corresponding to the received samples. The equalization process is accelerated by minimizing the error based on the de-correlated elements.