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.:
Date of Patent:
Jul. 03, 2012
Filed:
Jan. 15, 2010
Michael Kraemer, Lans en Vercors, FR;
Sébastien Rieubon, Saint Jean de Moirans, FR;
Michael Kraemer, Lans en Vercors, FR;
Sébastien Rieubon, Saint Jean de Moirans, FR;
Other;
Abstract
A method is for detecting locking of a phase-locked loop that generates an output signal and includes a phase comparator receiving, as an input, a reference signal and a second signal based upon the output signal. A time window having a duration of at least two periods of a third signal based upon the output signal, and located about a payload edge of the second signal, is generated. A first comparison of the reference signal and the second signal at a first payload edge of the third signal within the time window and on a first side of the payload edge of the second signal is performed. A second comparison of the reference signal and the second signal at a second payload edge of the third signal within the time window and on a second side of the payload edge of the second signal is then performed. Locking of the phase-locked loop based upon the reference signal and the second signal being equal during the first and second comparisons is detected.