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:
Aug. 07, 2012
Filed:
Jun. 23, 2010
Paul D. Muench, Poughkeepsie, NY (US);
Mangal Prasad, Poughkeepsie, NY (US);
George E. Smith, Iii, Wappingers Falls, NY (US);
Michael A. Sperling, Poughkeepsie, NY (US);
Paul D. Muench, Poughkeepsie, NY (US);
Mangal Prasad, Poughkeepsie, NY (US);
George E. Smith, III, Wappingers Falls, NY (US);
Michael A. Sperling, Poughkeepsie, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A voltage controlled oscillator (VCO) for a phase locked loop (PLL) includes a startup oscillator, the startup oscillator comprising a first plurality of inverters; a primary oscillator, the primary oscillator comprising a second plurality of inverters, wherein a number of the second plurality of inverters is fewer than the number of the first plurality of inverters; and a control module connected to the startup oscillator and the primary oscillator. A method of operating a voltage controlled oscillator (VCO) in a phase locked loop (PLL), the VCO comprising a startup oscillator and a primary oscillator includes sending an enable signal to the startup oscillator; waiting a predetermined number of startup oscillator clock cycles; and when the predetermined number of startup oscillator clock cycles has elapsed, sending a disable signal to the startup oscillator, and sending an enable signal to the primary oscillator.