Boots – shoes – and leggings
Patent
1993-02-08
1995-01-31
Voeltz, Emanuel T.
Boots, shoes, and leggings
364572, 371 4, 361212, 327310, 327384, H04B 1500, H02H 104
Patent
active
053863933
ABSTRACT:
Logic fencing circuit and method are provided for increasing system protection at a multiprocessor system interface so that spurious noise (e.g., attributable to an electrostatic discharge through a signal cable) is more reliably isolated from an active portion of the processing system. The noise fencing circuit, which is responsive to a fence control signal, includes logic circuitry for attenuating a received noise signal by constraining the noise signal to a magnitude less than or equal to the voltage level of a system power supply. The attenuating circuitry outputs an attenuated noise signal to a signal fence circuit which, when enabled by the fence control signal, outputs a substantially constant isolation signal in response to a received, attenuated noise signal. A logically staged fencing method is also set forth.
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Wilcox et al., "The Elimination of Electrostatis Discharge Failures from Silicon Gate Logic Technologies," IBM Technical Report Aug. 1985.
Hallee Edward C.
Huang Suo-Lun
Hwang Kirk H.
Messina Benedicto U.
Cutter Lawrence D.
International Business Machines - Corporation
Radigan Kevin D.
Stamber Eric W.
Voeltz Emanuel T.
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