Multiplex communications – Communication techniques for information carried in plural... – Combining or distributing information via frequency channels
Reexamination Certificate
2005-05-17
2005-05-17
Phunkulh, Bob A. (Department: 2661)
Multiplex communications
Communication techniques for information carried in plural...
Combining or distributing information via frequency channels
C340S661000
Reexamination Certificate
active
06895022
ABSTRACT:
An improved distributed architecture system including multiple electronic modules that communicate with each other over a communication bus through concurrent modulation of bus current and bus voltage, wherein the bus voltage detected by a receiver in the remote module is compensated to ensure reliable reception of a voltage modulated bus communication despite the modulation of bus current by the remote module. A remote module is coupled to the communication bus via input resistors to provide resistive isolation from the bus in the event of a short circuit failure in the remote module, and a charge pump and current mirror circuit in the remote module produce a compensation voltage across a resistor coupling the receiver to the bus, with the compensation voltage substantially canceling the influence of bus current modulation on the received bus voltage.
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Chmielewski Stefan V.
Delphi Technologies Inc.
Phunkulh Bob A.
LandOfFree
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