Pulse or digital communications – Cable systems and components
Patent
1995-02-24
1998-05-05
Chin, Stephen
Pulse or digital communications
Cable systems and components
375259, 375219, 375220, H04B 138, H04L 516
Patent
active
057486751
ABSTRACT:
A vehicle communications network is provided which includes a ground translation circuit and interfacing transmitter circuits that achieve smooth current sourcing transitions. Included is a communications bus such as a J1850 having multiple-access for interfacing with a plurality of electronics, preferably within a vehicle. Each transceiver has a transmitter and receiver interfaced with the bus. The transceiver is coupled via a resistive element to the communications bus and sources current onto the bus when the transmitter output voltage exceeds the bus voltage. The added resistance advantageously reduces changes in current which may otherwise exist on the communications bus when current sourcing switches on and off.
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Henry W. Ott, "Noise Reduction Techniques in Electronic Systems" Second Edition; 1988, pp. 37-42.
Hormel Ronald F.
Miesterfeld Frederick O.
Chin Stephen
Chrysler Corporation
Fuller III Roland A.
Phan Hai H.
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