Test apparatus, test method, waveform generator and waveform...

Details Test apparatus, test method, waveform generator and waveform... Test apparatus, test method, waveform generator and waveform...

2011-06-14

2011-06-14

Mattis, Jason E (Department: 2461)

Multiplex communications

Diagnostic testing

C370S254000, C370S295000

Reexamination Certificate

active

07961629

ABSTRACT:
A test apparatus, which is for testing a device under test including a receiving circuit for receiving signals transmitted through a communication cable, includes: a waveform generating section for outputting waveform data to define a waveform to be provided to an input terminal of a receiving circuit; a digital filter having the filter characteristic substantially reverse to the attenuation characteristic of the communication cable, for outputting amplified waveform data obtained by amplifying the waveform data; a DA converter for converting the amplified waveform data to an analog waveform; and a low-pass filter having the attenuation characteristic substantially same as that of the communication cable, for attenuating the analog waveform and providing the same to the receiving circuit.

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