Boots – shoes – and leggings
Patent
1987-11-16
1989-01-10
Blum, Theodore M.
Boots, shoes, and leggings
371 23, 307443, G01D 2100, G06F 1100, H03K 1716
Patent
active
047978384
ABSTRACT:
A method for evaluating the metastability characteristics of a synchronizing device having a latching stage, based upon theoretical and/or empirical evaluation of the latching stage circuit. The procedure first defines threshold requirements for an acceptable synchronizing device, including the requirement of a stable response for the latching stage in the region of the metastable operating point, and a further requirement of closed loop gain in excess of one in such operating region. Once the threshold condition are satisfied, mean time between failure to resolve can be conservatively estimated from values of effective gain, effective time delay, permissible time to resolve, rise time on the clock signal, frequency of the clock signal and frequency of the data signal.
Brown Jeffrey O.
Nelson Hilding E.
Zurn Shayne M.
Blum Theodore M.
Hawk Jr. Wilbert
Issing Gregory C.
NCR Corporation
Salys Casimer K.
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