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.

Date of Patent:
May. 05, 2015

Filed:

Sep. 13, 2013
Applicant:

Industrial Technology Research Institute, Hsinchu, TW;

Inventors:

Jen-Chieh Liu, Yilan County, TW;

Chi-Yang Chang, Taichung, TW;

Yo-Hao Tu, New Taipei, TW;

Kuo-Hsing Cheng, Taipei, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03L 7/087 (2006.01); H03L 7/097 (2006.01); H03K 3/03 (2006.01); H03L 1/00 (2006.01); H03L 7/06 (2006.01); H03L 7/099 (2006.01);
U.S. Cl.
CPC ...
H03L 7/06 (2013.01); H03L 7/087 (2013.01); H03K 3/0315 (2013.01); H03B 2201/0208 (2013.01); H03L 1/00 (2013.01); H03L 7/097 (2013.01); H03L 7/0995 (2013.01);
Abstract

A crystal-less clock generator (CLCG) and an operation method thereof are provided. The CLCG includes a first oscillation circuit, a second oscillation circuit, and a control circuit. The first oscillation circuit is controlled by a control signal for generating an output clock signal of the CLCG. The second oscillation circuit generates a reference clock signal. The control circuit is coupled to the first oscillation circuit for receiving the output clock signal and coupled to the second oscillation circuit for receiving the reference clock signal. The control circuit is used to generate the control signal for the first oscillation circuit according to the relationship between the output clock signal and the reference clock signal.


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