Electricity: measuring and testing – Fault detecting in electric circuits and of electric components – Of individual circuit component or element
Reexamination Certificate
2007-01-02
2007-01-02
Hirshfeld, Andrew H. (Department: 2858)
Electricity: measuring and testing
Fault detecting in electric circuits and of electric components
Of individual circuit component or element
C324S765010
Reexamination Certificate
active
10938753
ABSTRACT:
There is provided a test apparatus including: a test module operable to supply test patterns to the electronic device; a main signal source operable to generate a first timing signal in accordance with a phase of the supplied timing signal and supply it to the test module; and a sub-signal source operable to receive the timing signal from the main signal source, generate a second timing signal for controlling timing at which the test module supplies the test patterns to the electronic device, and supply it to the test module. The sub-signal source includes a phase adjustment circuit that substantially uniforms the timing at which the main signal source outputs the first timing signal and the timing at which the sub-signal source outputs the second timing signal by delaying the timing signal received from the main signal source.
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Advantest Corporation
Hirshfeld Andrew H.
Kramskaya Marina
Osha & Liang LLP
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