发明名称 |
Pulse pattern generating apparatus |
摘要 |
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.
|
申请公布号 |
US2005058190(A1) |
申请公布日期 |
2005.03.17 |
申请号 |
US20040897073 |
申请日期 |
2004.07.23 |
申请人 |
YOKOGAWA ELECTRIC CORPORATION |
发明人 |
SATO CHIE;KOBAYASHI SHINJI;KODAKA HIROTOSHI;AOKI IKUROU;DOI KOUSUKE;TOYAMA AKIRA;WADA MORIO;MATSUURA HIROYUKI;SUGAWARA HIROSHI;OHASHI MASAMICHI;OKITA HIRONORI;AKASAKA YASUKAZU;YAKIHARA TSUYOSHI;MIURA AKIRA |
分类号 |
G01R31/319;H03K3/84;H04B17/00;H04L25/02;(IPC1-7):H04B17/00 |
主分类号 |
G01R31/319 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|