Yokogawa Electric Corporation

Ikurou Aoki

Shinji Kobayashi

Hiroshi Sugawara

Akira Miura

Hiroyuki Matsuura

Akira Toyama

Morio Wada

Tsuyoshi Yakihara

Chie Sato

Hirotoshi Kodaka

Yasukazu Akasaka

Hironori Okita

Kousuke Doi

Masamichi Ohashi

An object of this invention is to realize a pulse pattern generating apparatus that outputs a test signal of high waveform quality even when the shape of an eye pattern is changed. This invention is an improvement of a pulse pattern generating apparatus that generates a test signal of a predetermined pattern by using plural digital-analog converters and outputs the test signal to a test subject. The apparatus includes: a parameter setting unit for setting values of plural parameters that determine the shape of an eye pattern of the test signal; a storage unit for storing output values to the digital-analog converters corresponding to the values of the parameters; an arithmetic operation unit for calculating output values to the digital-analog converters from the values of the parameters from the parameter setting unit and the output values in the storage unit; and a voltage value setting unit for setting, for the digital-analog converters, voltage values to be outputted from the digital-analog converters on the basis of the result of calculation by the arithmetic operation unit.

Pulse pattern generating apparatus

Growing community of inventors

Musashino, Japan

Ikurou Aoki