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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.:

US 8952759 B1

PDFFull Text
Date of Patent:
Feb. 10, 2015

Filed:

Nov. 15, 2012

Circuit and method for controlling mixed mode controlled oscillator and cdr circuit using the same

Applicant:

Mediatek Inc., Hsin-Chu, TW;

Inventors:

Ping-Ying Wang, Hsinchu, TW;

Kuan-Hua Chao, Yonghe, TW;

Jeng-Horng Tsai, Kao-Hsiung, TW;

Assignee:

MediaTek Inc., Hsin-Chu, TW;

Attorney:

McClure, Qualey & Rodack, LLP

Primary Examiner:

Arnold Kinkead

Assistant Examiner:

Richard Tan

Int. Cl.
CPC ...
H03L 7/00 (2006.01); H03L 9/00 (2006.01); H03K 3/03 (2006.01); H03K 5/13 (2014.01); H03L 7/089 (2006.01); H03L 7/099 (2006.01); H03L 7/113 (2006.01); H03K 5/00 (2006.01); H04L 7/033 (2006.01);
U.S. Cl.
CPC ...
H03L 9/00 (2013.01); H03K 3/0315 (2013.01); H03K 5/133 (2013.01); H03L 7/089 (2013.01); H03L 7/0891 (2013.01); H03L 7/0995 (2013.01); H03L 7/113 (2013.01); H03K 2005/00032 (2013.01); H03K 2005/00071 (2013.01); H03K 2005/00195 (2013.01); H03K 2005/00234 (2013.01); H04L 7/033 (2013.01);
Abstract

A circuit for controlling a mixed mode controlled oscillator. The circuit comprises a charge pump, and a digital loop filter. The charge pump is coupled to the mixed mode controlled oscillator. The charge pump receives an up/down signal and sends a current signal to the mixed mode controlled oscillator. The digital loop filter receives the up/down signal and generates a digital code signal to the mixed mode controlled oscillator. An output frequency of the mixed mode controlled oscillator is controlled by the current signal and the digital code signal.

Find Patent Forward Citations

Wang, Ping-Ying. (2015). Circuit and method for controlling mixed mode controlled oscillator and cdr circuit using the same (U.S. Patent No. 8952759). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8952759

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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