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:
May. 22, 2012
Filed:
Feb. 05, 2009
Daniel W. Storaska, Walden, NY (US);
Michael A. Sorna, Hopewell Junction, NY (US);
Daniel W. Storaska, Walden, NY (US);
Michael A. Sorna, Hopewell Junction, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method is provided for selecting an operating band of a voltage-controlled oscillator ('VCO') of a phase locked loop ('PLL') for which the lock frequency is closest to a center of the frequency range of the operating band. In such method, steps can be performed to determine the maximum and minimum frequencies of the operating band and the center frequency between them. From the center frequency of the operating band and the lock frequency within such operating band, a difference value can then be determined. The operating bands of the PLL can be tested until an operating band having the smallest difference value is determined. The VCO can then be set to such operating band in order for the lock frequency to be closest to the center frequency of the operating band.