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. 18, 2011
Filed:
Jul. 18, 2008
Chih-wei Yang, Hsinchu, TW;
Chih-Wei Yang, Hsinchu, TW;
Holtek Semiconductor Inc., Hsinchu, TW;
Abstract
An oscillation tuning circuit is provided and includes a first circuit. The first circuit receives an input data stream with a known time interval, producing a first output signal having a first period, determines a first error signal representing a difference between the known time interval and a measured duration of the known time interval, determines a reference error signal according to a predetermined multiple of the first period, and adjusts the first period according to the first error signal and the reference error signal, wherein the known time interval is associated with a period between a first occurrence of and a second occurrence of a predetermined bit pattern in the input data stream.