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:
Oct. 20, 2015
Filed:
Oct. 04, 2013
Amlogic Co., Ltd., Santa Clara, CA (US);
Jinhong Zhang, Santa Clara, CA (US);
Guogang Li, Shanghai, CN;
Amlogic Co., Ltd., Santa Clara, CA (US);
Abstract
A method and system for pseudorandom noise ('PN') phase detection in digital terrestrial multimedia broadcast ('DTMB') receivers. This method selects a detection range of symbols from a frame of the received signal; applies FFT to the PN portion of each of the symbols in the detection range to generate H(k); applies phase rotation to H(k) to obtain phase rotatedfor the PN portion of the symbols in the detection range; applies differential operations toto generate H; sums the Hto generated H; calculates a value Q as a function of H; and determines the PN phase offset as a function of Q and a predefined threshold.