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:
Aug. 21, 2012
Filed:
Jan. 16, 2009
Constantin Bucur, Sunnyvale, CA (US);
William Densham, Los Gatos, CA (US);
Jiun Heng Goh, Sunnyvale, CA (US);
Flavius Lupu, San Jose, CA (US);
Constantin Bucur, Sunnyvale, CA (US);
William Densham, Los Gatos, CA (US);
Jiun Heng Goh, Sunnyvale, CA (US);
Flavius Lupu, San Jose, CA (US);
O2Micro, Inc, Santa Clara, CA (US);
Abstract
A protection circuit includes a detection block, a timer and a protection enable block. The detection block is used to compare a monitoring signal with a reference signal and generate an alert signal if a difference between the monitoring signal and the reference signal exceeds a threshold for a first predetermined duration. The timer coupled to the detection block is used to generate an enabling signal for a second predetermined duration in response to the alert signal. The protection enable block coupled to the timer is used to generate a triggering signal for a first time duration determined by the second predetermined duration in response to the enabling signal so as to perform a protection function.