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. 27, 2010
Filed:
May. 17, 2004
Michel Robbe, Conflans Saint Honorine, FR;
Hervé Guegnaud, Maurepas, FR;
Michel Robbe, Conflans Saint Honorine, FR;
Hervé Guegnaud, Maurepas, FR;
EADS Telecom, Montigny le Bretonneux, FR;
Abstract
A PLL comprises a PFD, a loop filter and a VCO, as well as a voltage shift capacitor coupling the PFD and the VCO. A voltage shift control circuit is placed in parallel with the voltage shift capacitor. This circuit comprises controlled charging means, which are designed to charge the voltage shift capacitor according to a channel control signal. It also comprises controlled pre-charging means which are designed to accelerate the charging of the voltage shift capacitor by the controlled charging means. It further comprises controlled biasing means, designed to ensure the bias of the input during the pre-charging of the voltage shift capacitor.