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:
Jun. 24, 2008
Filed:
Jun. 22, 2006
Hayden C Cranford, Jr., Cary, NC (US);
Ram Kelkar, South Burlington, VT (US);
Anjali R Malladi, South Burlington, VT (US);
Martin L Schmatz, Rueschlikon, CH;
Nina a Shah, Cary, NC (US);
Hayden C Cranford, Jr., Cary, NC (US);
Ram Kelkar, South Burlington, VT (US);
Anjali R Malladi, South Burlington, VT (US);
Martin L Schmatz, Rueschlikon, CH;
Nina A Shah, Cary, NC (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Jitter method and control circuit for a circuit block in a transceiver system having a phase lock loop circuit which includes an oscillator, a charge pump connected to the oscillator to add or subtract charge to or from said oscillator, and a low pass filter connected to said charge pump are provided. Circuitry is connected to the output of the oscillator and the input of the charge pump to control the amount of charge added to or subtracted from the charge pump to control the bandwidth output by the oscillator and thereby reduce jitter in the phase lock circuit.