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:
Jun. 20, 2017
Filed:
Jan. 12, 2016
Applicant:
Realtek Semiconductor Corp., Hsinchu, TW;
Inventors:
Feng-Cheng Chang, Nantou County, TW;
Xiao-Guo Zheng, Jiangsu, CN;
Assignee:
REALTEK SEMICONDUCTOR CORP., Hsinchu, TW;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03D 3/24 (2006.01); H04L 25/49 (2006.01); H04L 7/033 (2006.01);
U.S. Cl.
CPC ...
H04L 25/49 (2013.01); H04L 7/0331 (2013.01);
Abstract
The present disclosure provides a crystal-less clock and data recovery (CDR) circuit and a frequency detection method thereof. The CDR circuit includes a clock generator and a frequency detection module. The clock generator is operable to generate a clock signal. The frequency detection module coupled to the clock generator is configured for outputting a control signal to the clock generator to increase or decrease the frequency of the clock signal according to a data signal received and a transition density.