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:
Jan. 03, 2012
Filed:
May. 04, 2007
Fredrik Brannstrom, Mountain View, CA (US);
Andrea Goldsmith, Menlo Park, CA (US);
Farrokh Farrokhi, San Ramon, CA (US);
Behrooz Rezvani, San Ramon, CA (US);
Fredrik Brannstrom, Mountain View, CA (US);
Andrea Goldsmith, Menlo Park, CA (US);
Farrokh Farrokhi, San Ramon, CA (US);
Behrooz Rezvani, San Ramon, CA (US);
Quantenna Communications, Inc., Sunnyvale, CA (US);
Abstract
A technique for low-complexity high-performance coherent demodulation of GFSK signals involves utilizing a novel phase and frequency tracking mechanism coupled with a trellis search technique to track signal memory in the demodulation process. A method according to the technique may include modeling modulation based upon a trellis. The method may further include estimating unknown parameters, selecting a maximum likelihood path through the trellis, and mapping the maximum likelihood path to an output bit sequence. The technique is also applicable to DSPK and other applicable known or convenient protocols.