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:
Nov. 28, 2006
Filed:
Sep. 13, 2005
Hayden Clavie Cranford, Jr., Apex, NC (US);
Stacy Jean Garvin, Durham, NC (US);
Vernon Roberts Norman, Cary, NC (US);
Paul Alan Owczarski, Raleigh, NC (US);
Martin Leo Schmatz, Gallen, CH;
Joseph Marsh Stevens, Morrisville, NC (US);
Hayden Clavie Cranford, Jr., Apex, NC (US);
Stacy Jean Garvin, Durham, NC (US);
Vernon Roberts Norman, Cary, NC (US);
Paul Alan Owczarski, Raleigh, NC (US);
Martin Leo Schmatz, Gallen, CH;
Joseph Marsh Stevens, Morrisville, NC (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
The present analog invention is related to a unified digital architecture comprising logic transmitter portions and logic receiver portions. A unified serial link system and method for transmitting digital data across wired media including a transmitter and a receiver portion is provided, one of the transmitter portion and receiver portion comprising a phase locked loop (PLL) circuit. The PLL circuit comprises a voltage control oscillator, a frequency divider, a phase-frequency detector, a charge pump and a multi-pole loop filter. One embodiment comprises a dual loop PLL having a digital coarse loop and an analog fine loop.