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:
Feb. 28, 2006
Filed:
Mar. 11, 2004
Guido Gabriele Albasini, Voghera, IT;
Enrico Temporiti Milani, Pavia, IT;
Giulio Ricotti, Broni, IT;
Giovanni Frattini, Torre D'Isola, IT;
Guido Gabriele Albasini, Voghera, IT;
Enrico Temporiti Milani, Pavia, IT;
Giulio Ricotti, Broni, IT;
Giovanni Frattini, Torre D'Isola, IT;
STMicroelectronics S.r.l., Agrate Brianna, IT;
Abstract
A phase-locked loop circuit provides an output signal having a frequency depending on the frequency of a reference signal. The circuit includes a feedback circuit that derives a feedback signal from the output signal, a phase frequency detector that provides a control signal indicative of a phase difference between the reference signal and the feedback signal, a control circuit that controls the frequency of the output signal according to the control signal, and a conditioning circuit that conditions the control signal through a conditioning signal. The conditioning circuit includes a storage circuit that stores energy provided by the control signal and the conditioning signal during a first phase and transfers the accumulated energy to the control circuit during a second phase.