Coded data generation or conversion – Converter calibration or testing
Reexamination Certificate
2008-06-25
2009-11-03
Mai, Lam T (Department: 2819)
Coded data generation or conversion
Converter calibration or testing
C714S736000, C714S724000
Reexamination Certificate
active
07612698
ABSTRACT:
There is provided a test apparatus for testing a device under test, the test apparatus including: a test signal supplying section that supplies a digital input signal for testing purposes, to the device under test; a reference signal output section that outputs an analogue reference signal in accordance with the digital input signal; a difference obtaining section that outputs an analogue difference signal representing a difference between the analogue reference signal and an analogue output signal outputted by the device under test in accordance with the digital input signal; and a determining section that determines whether the analogue output signal shows a defect or not based on the analogue difference signal.
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patent: 6324665 (2001-11-01), Fay
patent: 7571363 (2009-08-01), Wallace et al.
patent: 2005/0219107 (2005-10-01), Guidry
patent: 2009/0027041 (2009-01-01), Kimura
patent: 7-321654 (1995-12-01), None
Advantest Corporation
Jianq Chyun IP Office
Mai Lam T
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