Systems and methods associated with test equipment

Error detection/correction and fault detection/recovery – Pulse or data error handling – Digital logic testing

Reexamination Certificate

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Details

C714S744000

Reexamination Certificate

active

10840898

ABSTRACT:
The present invention relates to test systems for testing integrated circuit devices and to calibration associated systems and methods. One embodiment of the invention provides a test system formatter including: a plurality of event logic interfaces, each event logic interface capable of receiving and decoding timing signals; a plurality of delay line elements (DLEs), each DLE being coupled to a corresponding event logic interface and being capable of generating timing markers corresponding to signals received from the corresponding event logic interface; drive logic coupled to the plurality of DLEs, having first and second outputs and operative to produce first and second formatted levels on the first and second outputs in response to timing markers received from the plurality of DLEs; response logic coupled to the plurality of DLEs, having first and second inputs and operative to produce strobe markers in response to timing markers received from the plurality of DLEs; and a loop-back circuit.

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Toshiyuki Okayasu et al., “CMOS Circuit Technology for Precise GHz Timing Generator,”IEEE: ITC International Test Conference, Paper 31.2, pp. 894-902 (2002).
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Robert Hägglund et al., “Tuning and Compensation of Temperature Effects in Analog Integrated Filters,” Department of Electrical Engineering, Linköping University, no date.

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