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:
May. 05, 2009
Filed:
Jul. 28, 2006
Naoki Matsumoto, Tokyo, JP;
Takashi Sekino, Tokyo, JP;
Naoki Matsumoto, Tokyo, JP;
Takashi Sekino, Tokyo, JP;
Advantest Corporation, Tokyo, JP;
Abstract
A driver circuit for outputting an output signal corresponding to an input signal given to the driver circuit, includes a voltage generating unit for outputting a basic output voltage corresponding to the input signal, a first buffer circuit for outputting an output voltage corresponding to the basic output voltage outputted by the voltage generating unit, a second buffer circuit, of which power consumption is larger than the first buffer circuit, for generating and outputting a voltage corresponding to the output voltage as the output signal, a simulating circuit including a simulating buffer circuit for generating a simulated voltage corresponding to the basic output voltage outputted by the voltage generating unit, the simulating buffer circuit having substantially the same characteristic as that of the first buffer circuit, and a controlling unit for controlling the basic output voltage outputted by the voltage generating unit based on the simulated voltage.