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:
Feb. 09, 2016
Filed:
Oct. 01, 2012
Applicant:
Atmel Corporation, San Jose, CA (US);
Inventors:
Tor Erik Leistad, Trondheim, NO;
Frode Milch Pedersen, Trondheim, NO;
Fredrik Larsen, Trondheim, NO;
Assignee:
Atmel Corporation, San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03L 7/06 (2006.01); H03K 3/03 (2006.01); H03K 3/011 (2006.01); H03L 7/099 (2006.01); H03L 7/183 (2006.01); H03K 5/14 (2014.01); H03L 7/081 (2006.01);
U.S. Cl.
CPC ...
H03K 3/0315 (2013.01); H03K 3/011 (2013.01); H03L 7/0997 (2013.01); H03L 7/183 (2013.01); H03K 5/14 (2013.01); H03L 7/0814 (2013.01);
Abstract
A delay line of individually selectable delay elements can operate as an oscillator in an open loop mode to track process variation or drive a clock signal that varies with temperatures and voltages in the system. The delay line oscillator can also operate in a closed loop mode to match a frequency given by a tuner ratio and a reference clock. The delay line can also be used for measuring clock jitter or duty cycle.