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:
Jan. 13, 2009
Filed:
Feb. 18, 2005
Ali Noorbakhsh, Danville, CA (US);
David Keene, Corrales, NM (US);
John Lattanzi, Palo Alto, CA (US);
Ram Chilukuri, San Jose, CA (US);
Ali Noorbakhsh, Danville, CA (US);
David Keene, Corrales, NM (US);
John Lattanzi, Palo Alto, CA (US);
Ram Chilukuri, San Jose, CA (US);
Genesis Microchip Inc., Santa Clara, CA (US);
Abstract
Detecting when the on-board power supply is powered on or off by an auto activity detection circuit by determining if the reference clock signal (T) is toggling and if the reference clock signal is toggling, then charging a capacitor to a high voltage in the auto activity detection circuit based on the toggling reference clock signal, and outputting an on-board power supply activity signal based upon the high voltage by the auto activity detection circuit indicative of whether or not the on-board power supply is active.