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:
Oct. 12, 2010
Filed:
Jun. 30, 2008
Armando J. Gonzalez, Miami, FL (US);
Armando J. Gonzalez, Miami, FL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A frequency generation unit (FGU)includes a plurality of selectable voltage controlled oscillators () whose output frequencies are chosen in relationship with a predetermined intermediate frequency (IF) and frequency divider value (M) to provide multi-band frequency generation capability in a single communication device. A programmable reference divider (), phase detector () and programmable charge pump () take an incoming reference frequency () and generate a charge pump output () to optimize the in-band phase noise in the FGU. A fixed loop filter () filters the charge pump output () to generate a control voltage () for the selectable VCOs (). The desired frequency band is selected and enabled using control logic ().