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:
Dec. 13, 2005
Filed:
Feb. 17, 2004
Yasuhiko Sekimoto, Hamakita, JP;
Yasuhiko Sekimoto, Hamakita, JP;
Yamaha Corporation, Hamamatsu, JP;
Abstract
A low-pass filter eliminates a high-frequency component contained in an input signal. An inverter outputs a signal at a high level or a low level in response to an output of the low-pass filter that is larger or smaller than a threshold level. A one-shot pulse generating circuit outputs a pulse signal at a point of time when an output level of the inverter is changed. FETs receive the pulse signal output from the one-shot pulse generating circuit, and pulls in forcedly the output of the low-pass filter to the high level or the low level. According to this pulling-in operation, generation of the noise at an output terminal can be prevented.