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:
Apr. 07, 2015

Filed:

Oct. 18, 2013
Applicant:

Cambridge Silicon Radio Limited, Cambridge, GB;

Inventors:

Pasquale Lamanna, Villeneuve-Loubet, FR;

Nicolas Sornin, La Tronche, FR;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03D 3/24 (2006.01); H04L 7/033 (2006.01); H03L 7/197 (2006.01); H03L 7/08 (2006.01);
U.S. Cl.
CPC ...
H04L 7/0331 (2013.01); H03L 7/1976 (2013.01); H03L 7/08 (2013.01);
Abstract

A phase-locked loop having: an oscillator for forming an oscillating output signal; a frequency divider connected to receive the output of the oscillator and frequency divide it by a value dependent on a division control signal; and a phase comparator for comparing the phase of the divided signal and a reference signal to generate a control signal, the operation of the oscillator being dependent on the control signal; a first mode of operation in which the frequency divider is configured to operate in dependence on a first division control signal such that the resultant oscillating output signal has a first frequency and first phase, a second mode of operation in which the frequency divider is configured to operate in dependence on a second division control signal such that the resultant oscillating output signal has a second frequency and second phase, the first division control signal being generated independently of the oscillating output signal such that the first phase is maintained when the phase-locked loop is operating in a second mode.


Find Patent Forward Citations

Loading…