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. 10, 2012
Filed:
Jan. 23, 2009
Meng-han Hsieh, Hsinchu, TW;
Chi-shun Weng, Hsinchu County, TW;
Ming-je LI, Yilan County, TW;
Kai-yi Fang, Kaohsiung County, TW;
Meng-Han Hsieh, Hsinchu, TW;
Chi-Shun Weng, Hsinchu County, TW;
Ming-Je Li, Yilan County, TW;
Kai-Yi Fang, Kaohsiung County, TW;
Realtek Semiconductor Corp., Science Park, HsinChu, TW;
Abstract
A method for generating a spread spectrum clock includes the steps of providing a reference clock having a reference period; generating a plurality of output clocks respectively having different phases according to the reference clock; generating a first/second control signal according to the reference clock and a spread spectrum clock and starting a first/second duration accordingly; during the first/second duration, outputting a first/second selecting signal representing a first/second predetermined sequence according to the first/second control signal, wherein the second predetermined sequence is a substantial reversed sequence of the first predetermined sequence; and during the first/second duration, sequentially outputting some or all of the output clocks as the spread spectrum clock according to the first/second predetermined sequence.