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:
Mar. 08, 2011
Filed:
Mar. 06, 2009
Jyi-hung Tseng, Sinshih Township, Tainan County, TW;
Jyi-Hung Tseng, Sinshih Township, Tainan County, TW;
Himax Analogic, Inc., Sinshih Township, Tainan County, TW;
Abstract
A delay circuit includes current sources, switches, a transistor switch, a charging unit and a comparator. Each of the switches is provided for receiving an enable signal to activate and convey one of the current sources. The transistor switch is activated for pulling down voltage of an operating node coupled to the switches. The charging unit provides an operating voltage for the operating node based on one of the current sources when the transistor switch is deactivated and one of the switches is activated to convey one of the current sources to the charging unit. The comparator is provided for comparing the operating voltage with a reference voltage.