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. 19, 2008
Filed:
Mar. 06, 2006
Applicant:
Eric Vandel, Neuchâtel, CH;
Inventor:
Eric Vandel, Neuchâtel, CH;
Assignee:
Semtech Neuchâtel SA, Neuchâtel, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03B 5/12 (2006.01); H03C 3/22 (2006.01); H03L 7/089 (2006.01);
U.S. Cl.
CPC ...
Abstract
Phase locked loop circuit () having a double entry VCO () and two independent charge pumps (), each connected with one of the entries of the VCO. Each of the VCO entries has a different gain coefficient, thereby allowing a better optimisation and control of the device bandwidth and a reduced phase noise. Can be employed in radio transmitters and/or receivers and allows simultaneous and precise FM modulation both inside and outside the PLL bandwidth.