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:
Sep. 16, 2014
Filed:
Aug. 02, 2013
Altera Corporation, San Jose, CA (US);
Kyung Suk Oh, Cupertino, CA (US);
Yujeong Shim, Santa Clara, CA (US);
Tim Tri Hoang, San Jose, CA (US);
Weiqi Ding, Fremont, CA (US);
Sunitha Chandra, Cupertino, CA (US);
Altera Corporation, San Jose, CA (US);
Abstract
Systems and methods are provided for reducing jitter due to power supply noise in an integrated circuit by drawing additional current. The additional current causes the total current to generally have a frequency higher than a resonant frequency of the integrated circuit and/or a power distribution network of the integrated circuit. In one example, a power distribution network may supply power to components of an integrated circuit and data driver circuitry may draw first current to drive a data signal. Compensation circuitry may draw second current at times when the data driver circuitry is not drawing the first current, thereby causing a net of the first and second current to be higher than a resonant frequency range of the integrated circuit device and/or a component of the integrated circuit device (e.g., the power distribution network).