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:
Jul. 19, 2011
Filed:
Jan. 19, 2010
Applicants:
Nobuaki Tsuji, Hamamatsu, JP;
Hirotaka Kawai, Hamamatsu, JP;
Inventors:
Nobuaki Tsuji, Hamamatsu, JP;
Hirotaka Kawai, Hamamatsu, JP;
Assignee:
Yamaha Corporation, Hamamatsu-shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03L 5/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An N-channel transistor is provided as a switch between a high potential power line and a low potential power line. A high-pass filter is constituted by a capacitor and a resistor. When a voltage between the high potential power line and the low potential power line is started to oscillate by a switching operation, the high-pass filter causes a high-pass component thereof to pass, thereby turning ON the N-channel transistor to reduce a ringing.