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:
Sep. 18, 2012
Filed:
Apr. 13, 2009
Kai Xie, Santa Clara, CA (US);
Sattar Elyasi, San Jose, CA (US);
Kai Xie, Santa Clara, CA (US);
Sattar Elyasi, San Jose, CA (US);
Altobridge Limited, Tralee, Co. Kerry, IE;
Abstract
A receiver comprises a demodulator to estimate channel impulse response and timing synchronization information for the received signal and to select a modulation technique for demodulating the received signal; and a channel decoder to produce a binary sequence from the received signal demodulated according to the selected modulation technique; wherein the demodulator: demodulates the received signal according to a first modulation technique and a second modulation technique to produce a first demodulated signal and a second demodulated signal, respectively; calculates a minimum distance between a first reconstructed signal including the training sequence and the first demodulated signal to estimate the channel impulse response and timing synchronization information; calculates a minimum distance between a second reconstructed signal including the training sequence and the second demodulated signal to estimate the channel impulse response and timing synchronization information; compares the minimum distance corresponding to the first demodulated signal with the minimum distance corresponding to the second demodulated signal; and selects the modulation technique, from among the first and second modulation techniques, that corresponds to the smaller minimum distance.