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:
Mar. 06, 2007
Filed:
May. 16, 2003
Ching-wen MA, Nantou, TW;
Ching-Wen Ma, Nantou, TW;
Via Technologies, Inc., Taipei, TW;
Abstract
A timing recovery circuit and related method is disclosed. The timing recovery circuit encompasses a converter, an interpolator, a phase error detector, an adjustment circuit, and a calculation circuit. The converter samples an input signal to generate an intermediate signal carrying samples of the input signal, while the interpolator inserts an interpolating sample into the intermediate signal in response to a control value to generate an output signal. The phase error detector outputs a phase error of the output signal. The adjustment circuit updates an over-sampling ratio according to a pair of first and second thresholds, and a counting value adjusted in response to the phase error and a median reference value. Finally, the calculation circuit derives the control value from the updated over-sampling ratio, and transferring the control value to the interpolator.