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:
Sep. 27, 2005
Filed:
Jan. 29, 2004
Makoto Nagasue, Tokyo, JP;
Makoto Nagasue, Tokyo, JP;
Oki Electric Industry Co., Ltd., Tokyo, JP;
Abstract
There is provided a signal amplifier capable of restraining the influence of an EMI caused by a distortion of a waveform of an output signal. The signal amplifier comprises an inverter circuit made up of p-channel and n-channel transistors, reference circuits having a circuit configuration corresponding to the inverter circuit and made up of p-channel and n-channel transistors, a selection circuit for selecting the p-channel and n-channel transistors independently with each other with the same combination as the combination of the selection of the p-channel and n-channel transistors in the inverter circuit and the reference circuits, and a selection control circuit for comparing first driving capacity of the p-channel transistor selected in the first reference circuit with second driving capacity of the n-channel transistor selected in the second reference circuit and controlling the selection circuit so as to achieve a balance between the first driving capacity and the second driving capacity on the basis of the result of comparison.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile