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:
Jun. 30, 2009
Filed:
Jan. 27, 2006
Jiro Takaki, Kumamoto, JP;
Kazuhiro Ishiguchi, Kumamoto, JP;
Akihiro Minami, Kumamoto, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A noise elimination circuit that eliminates a noise of a display control signal of a matrix display device, includes a rising edge detection circuit unit that detects a rising edge of a signal for eliminating a noise, a counter that performs a count operation during a predefined period of time, an initialization circuit unit that generates an initialization signal of the counter, a count enable circuit unit that generates a count allowance signal of the counter, and an initial state detection circuit unit that detects whether or not the counter is in an initial state. The counter starts the count operation from an initial value in response to a rising edge detection by the rising edge detection circuit unit. The counter is initialized again after the count operation during the predefined period of time is completed. An initial state detection signal by the initial state detection circuit unit becomes a signal from which a noise is eliminated.