Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1987-07-02
1988-12-06
Miller, Stanley D.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
328 55, 328 63, 307269, 307590, 371 1, H03K 1700, G06K 504
Patent
active
047898356
ABSTRACT:
A system which enables signals to be supplied at precisely desired times in an automatic test system. The apparatus includes a base delay memory which stores information related to a base time delay, while a vernier memory stores information relating to timing corrections to be made to the base time delay. The base delay memory controls a counter while the correction memory controls a vernier deskew apparatus for further delaying the output signal from the counter. To prevent carries from the vernier memory from influencing the base delay memory, the most significant bit of the vernier memory is of the same significance as the least significant bit of the base delay memory. The most significant bit of the vernier memory is also connected to drive the counter, in effect providing the counter with two least significant bits, and enabling a single base delay memory to control more than one signal timing paths.
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Callahan Timothy P.
Carroll David H.
Colwell Robert C.
Fairchild Camera & Instrument Corporation
Miller Stanley D.
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