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:
Jan. 03, 2012

Filed:

May. 06, 2009
Applicants:

Christopher Painter, Longmont, CO (US);

Jin Xie, Longmont, CO (US);

Inventors:

Christopher Painter, Longmont, CO (US);

Jin Xie, Longmont, CO (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/09 (2006.01);
U.S. Cl.
CPC ...
Abstract

A phase detector comprises a first slicing circuit that generates a first digital signal corresponding to a logic state of a first generally continuous signal. A second slicing circuit generates a second digital signal corresponding to a logical state of a second generally continuous signal. Phase detector logic compares triggering edges of the first and second digital signals to generate a phase difference signal having a pulse width corresponding to a phase difference between the first and second generally continuous signals. Aberration compensation circuitry is in communication with the phase detector logic to ensure generation of the phase difference signal in the presence of signal aberrations occurring at the triggering edges of the first and second digital signals.


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