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 7852133 B1

PDF
Full Text
Expired
Date of Patent:
Dec. 14, 2010

Filed:

Sep. 28, 2007
Applicants:

Yhean-sen Lai, Warren, NJ (US);

Jie Song, Germantown, MD (US);

Zhenyu Wang, Bethlehem, PA (US);

Jinguo Yu, Flemington, NJ (US);

Inventors:

Yhean-Sen Lai, Warren, NJ (US);

Jie Song, Germantown, MD (US);

Zhenyu Wang, Bethlehem, PA (US);

Jinguo Yu, Flemington, NJ (US);

Assignee:

Agere Systems Inc., Allentown, PA (US);

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

A method for extending a tracking range of a PLL includes the steps of: establishing an initial tracking window of the PLL, the tracking window having a first width associated therewith; and dynamically adjusting the tracking window of the PLL within an extended tracking range when a frequency of an input signal supplied to the PLL is outside of the tracking window, the extended tracking range having a second width associated therewith which is greater than the first width.


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