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:
Nov. 02, 2010

Filed:

May. 15, 2009
Applicants:

Pao-chuan Lin, Hsinchu County, TW;

Yi-shuo Huang, Hualien County, TW;

Ching-tsa Pan, Hsinchu, TW;

Po-yen Chen, Taipei, TW;

Inventors:

Pao-Chuan Lin, Hsinchu County, TW;

Yi-Shuo Huang, Hualien County, TW;

Ching-Tsa Pan, Hsinchu, TW;

Po-Yen Chen, Taipei, TW;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03L 7/06 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention relates to a tri-state delay-typed phase lock loop, which comprises: a phase and frequency detector, a mode detector, a mode selector, a first sampling delay unit, a plurality of counters, a second sampling delay unit, and a phase and frequency calculator. The phase and frequency of the input reference signal can be determined automatically by the phase lock loop, and the output synchronization signal can be generated such that the frequency and the phase of the output synchronization signal are identical to those of the input reference signal.


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