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:
Apr. 20, 2010
Filed:
Feb. 10, 2006
James June-ming Wang, San Marino, CA (US);
Jack Winters, Middletown, NJ (US);
James June-Ming Wang, San Marino, CA (US);
Jack Winters, Middletown, NJ (US);
Motia Inc., San Mateo, CA (US);
Abstract
The present invention comprises a method and system for weight generation in an adaptive array with spread spectrum signals. Signals received by each antenna are amplified, weighted and summed. Complex weighting is achieved by splitting the signal into inphase and quadrature components, and adjusting the gain of each of these components before combining these weighted components. The output signal after combining of the weighted signals from each antenna is downconverted to baseband, creating inphase and quadrature baseband components. The baseband components are multiplied by the spread spectrum sequence to despread the output signal and reduce the bandwidth of the desired spread spectrum signal to the original desired signal bandwidth. The signals received by each antenna are also downconverted to baseband inphase and quadrature components. Each of these components is multiplied by the spread spectrum sequence to despread the output signal and reduce the bandwidth of the desired spread spectrum signal to the original desired signal bandwidth. The despread/filtered individual antenna signals are multiplied by the despread/filtered output signal to generate antenna weights.