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:
Mar. 27, 2012
Filed:
Jan. 18, 2008
Paul J. Husted, Santa Clara, CA (US);
Shahram Abdollahi-alibeik, Santa Clara, CA (US);
David J. Weber, Santa Clara, CA (US);
Soner Ozgur, Santa Clara, CA (US);
Paul J. Husted, Santa Clara, CA (US);
Shahram Abdollahi-Alibeik, Santa Clara, CA (US);
David J. Weber, Santa Clara, CA (US);
Soner Ozgur, Santa Clara, CA (US);
Qualcomm Atheros, Inc., San Jose, CA (US);
Abstract
An apparatus for processing a Bluetooth signal advantageously mixes down a received RF signal to an IF signal wherein one band-edge of the spectrum of the IF signal may be approximately 0 Hz. In one embodiment, the IF signal may be digitized, decimated and filtered before being processed into a baseband signal. The baseband signal may be processed by a cordic (COordinate Rotation DIgital Computer) processor to transform the baseband signal from rectangular to polar coordinates. A phase signal from the cordic processor may be used to determine transmitted Bluetooth data symbols. The apparatus may advantageously use less area than traditional Bluetooth receivers.