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:
Jan. 06, 2015
Filed:
Apr. 18, 2014
Applicant:
Asahi Kasei Microdevices Corporation, Tokyo, JP;
Inventor:
David Canard, Colombelles, FR;
Assignee:
Asahi Kasei Microdevices Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03L 7/06 (2006.01); H03L 7/095 (2006.01);
U.S. Cl.
CPC ...
H03L 7/095 (2013.01);
Abstract
A phase-locked loop device is configured to manage a transition from a relaxation-oscillation mode to a random noise operation mode. It is designed for progressively reducing proportional and integral coefficients that are implemented in a loop filter of the PLL device. Recovering the last values formerly used for the proportional and integral coefficients is also provided, in case the PLL lock state is lost. Such transition management may be combined with using a voltage-controlled oscillator within the PLL device, which has several control inputs.