Orthogonal signal generation using vector spreading and...

Details Orthogonal signal generation using vector spreading and... Orthogonal signal generation using vector spreading and...

2005-10-21

2010-06-29

Ngo, Ricky (Department: 2464)

Multiplex communications

Generalized orthogonal or special mathematical techniques

Particular set of orthogonal functions

C375S243000

Reexamination Certificate

active

07746764

ABSTRACT:
The present invention provides an approach for quadrature signal generation, which does not require orthogonal reference signals or nearly orthogonal reference signals as an input or given condition. The techniques provided herein can utilize a reference phase shift less than 90° but greater than 0°, along with an inversion to create orthogonal signals. The techniques provided here reduce the number of critical manipulations required from a hardware perspective.

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International Search Report for PCT Appl. No. PCT/US05/38334, 1 page, date of completion: Nov. 11, 2006.
International Preliminary Report on Patentability for PCT Appl. No. PCT/US05/38334, 3 pages, date of completion: May 7, 2007.

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