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:
Mar. 19, 2013
Filed:
Jun. 19, 2009
Masaichi Hashimoto, Miyagi, JP;
Akiyoshi Irisawa, Miyagi, JP;
Masaichi Hashimoto, Miyagi, JP;
Akiyoshi Irisawa, Miyagi, JP;
Advantest Corporation, Tokyo, JP;
Abstract
A trigger signal generation device restrains a jitter from being generated in a measurement result of light, such as terahertz light, that has transmitted through a device under test. The device includes a first photoelectric conversion unit that applies photoelectric conversion to a probe light pulse, a second photoelectric conversion unit that applies photoelectric conversion to a pump light pulse, a first amplification unit that amplifies an output from the first photoelectric conversion unit, and a second amplification unit that amplifies an output from the second photoelectric conversion unit. The device also includes a trigger signal output unit that outputs a cross-correlation of outputs of the first amplification unit and the second amplification unit as a trigger signal, and a period difference adjustment unit that adjusts a difference in periods.