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. 17, 2012
Filed:
Aug. 01, 2008
Yiwu Tang, San Diego, CA (US);
Mahim Ranjan, La Jolla, CA (US);
Marco Cassia, San Diego, CA (US);
Christian Holenstein, San Diego, CA (US);
Yiwu Tang, San Diego, CA (US);
Mahim Ranjan, La Jolla, CA (US);
Marco Cassia, San Diego, CA (US);
Christian Holenstein, San Diego, CA (US);
Qualcomm Incorporated, San Diego, CA (US);
Abstract
An apparatus for implementing phase rotation at baseband frequency for transmit diversity may include a primary transmit signal path and a diversity transmit signal path. Both the primary transmit signal path and the diversity transmit signal path may receive a primary transmit signal. A signal selector within the diversity transmit signal path may perform phase rotation with respect to the primary transmit signal while the primary transmit signal is at a baseband frequency, thereby producing a diversity transmit signal.