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. 06, 2015
Filed:
Dec. 03, 2013
Mstar Semiconductor, Inc., Hsinchu Hsien, TW;
Chu-Hsin Chang, Hsinchu County, TW;
Kai-Wen Cheng, Hsinchu County, TW;
Yi-Ying Liao, Hsinchu County, TW;
Tung-Sheng Lin, Hsinchu County, TW;
Tai-Lai Tung, Hsinchu County, TW;
MStar Semiconductor, Inc., Hsinchu Hsien, TW;
Abstract
A channel scanning method for Digital Video Broadcasting-Satellite (DVB-S) signals is provided. The method includes: scanning a radio frequency (RF) signal according to a normal frequency step; when the Nchannel is detected, obtaining a difference between a low boundary of an Nchannel and a high boundary of an (N−1)channel; and, when the difference is within a predetermined bandwidth range, scanning the RF signal between the high boundary of the (N−1)channel and the low boundary of the Nchannel according to a narrow frequency step. The normal frequency step is greater than the narrow frequency step.