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:
Aug. 02, 2011
Filed:
Sep. 04, 2009
Naoki Matsumoto, Tokyo, JP;
Takashi Sekino, Tokyo, JP;
Takayuki Nakamura, Tokyo, JP;
Advantest Corp., Tokyo, JP;
Abstract
In a driver circuitfor outputting a simulated signal simulating an input signal subjected to transmission loss, corresponding to the input signal, the driver circuitcomprises: a main driverwhich receives the input signal and outputs an output signal corresponding to the input signal; a sub driverwhich receives the input signal and outputs an output signal given by inverting the input signal; a high frequency emphasizing circuitwhich receives the input signal of the sub driverand outputs an output signal having the high frequency of the input signal of the sub driveremphasized; and an addition unitwhich outputs the simulated signal given by adding the output signal of the main driverand the output signal of the high frequency emphasizing circuit