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:
Nov. 11, 2014
Filed:
Sep. 20, 2011
Applicants:
Michael Youssef, Newport Coast, CA (US);
Ahmad Mirzaei, Costa Mesa, CA (US);
Hooman Darabi, Laguna Niguel, CA (US);
Inventors:
Michael Youssef, Newport Coast, CA (US);
Ahmad Mirzaei, Costa Mesa, CA (US);
Hooman Darabi, Laguna Niguel, CA (US);
Assignee:
Broadcom Corporation, Irvine, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
H03L 7/087 (2006.01); H03L 7/02 (2006.01); H03L 7/07 (2006.01); H03L 7/099 (2006.01);
U.S. Cl.
CPC ...
H03L 7/099 (2013.01); H03L 2207/05 (2013.01);
Abstract
Embodiments of the present invention enable a feedback-based VCO linearization technique. Embodiments include a frequency locked loop formed by feeding back a VCO's output into the VCO's input in negative phase by means of a frequency-to-voltage (F/V) converter. Embodiments enable constant VCO gain over a wide input tuning range and across PVT variations. Further, embodiments can be nested within a PLL, for example, with negligible area and power consumption overhead.