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. 08, 2009
Filed:
Feb. 11, 2004
Srinivasa H. Raghavan, Rancho Palos Verdes, CA (US);
Jack K. Holmes, Agoura Hills, CA (US);
Kristine P. Maine, Redondo Beach, CA (US);
Srinivasa H. Raghavan, Rancho Palos Verdes, CA (US);
Jack K. Holmes, Agoura Hills, CA (US);
Kristine P. Maine, Redondo Beach, CA (US);
The Aerospace Corporation, El Segundo, CA (US);
Abstract
A code division multiple access (CDMA) communication system using spread spectrum signaling over a communication bandwidth uses two different signal spectra generated using two different respective spreading code formats, such as NRZ code formatting and staggered Manchester code formatting, for respectively providing nonsplit spectra having a center peak and split spectra having a center null. The spectra are combined during transmission as a CDMA communication signal having a composite spectrum. The use of different code formats produces the composite spectrum of respective center peak and center null spectra that enables increased channel capacity.