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. 20, 2018
Filed:
Sep. 12, 2016
Applicant:
Mediatek Inc., Hsin-Chu, TW;
Inventors:
Tse-Hsien Yeh, New Taipei, TW;
Yi-Hsien Cho, Hsinchu County, TW;
Assignee:
MEDIATEK INC., Hsin-Chu, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03L 7/08 (2006.01); H03L 7/081 (2006.01); H03L 7/093 (2006.01); H04L 7/033 (2006.01);
U.S. Cl.
CPC ...
H03L 7/0807 (2013.01); H03L 7/0814 (2013.01); H03L 7/093 (2013.01); H04L 7/033 (2013.01);
Abstract
A clock data recovery apparatus includes an oscillator, a sampler circuit, and a frequency control circuit. The oscillator generates a clock signal according to a bias voltage. The sampler circuit samples an input data signal to generate a sampling signal according to the clock signal. The frequency control circuit generates the bias voltage by performing integration calculation, digital-to-analog conversion, and low-pass filtering for the sampling signal.