Multiplex communications – Diagnostic testing – Fault detection
Reexamination Certificate
2005-06-02
2011-10-18
Ryman, Daniel J (Department: 2466)
Multiplex communications
Diagnostic testing
Fault detection
C326S021000, C326S062000, C327S001000, C327S100000, C327S518000
Reexamination Certificate
active
08040813
ABSTRACT:
An apparatus is provided which includes a common signal node operable to conduct a first signal, a first circuit coupled to the common signal node to utilize the first signal and a signal-handling element coupled to the common signal node. The signal-handling element includes an isolating circuit coupled to the first conductor, a second conductor operable to conduct an output of the isolating circuit, and a signal-handling circuit coupled to the second conductor. The signal-handling circuit is operable to perform a signal-handling function in response to the output of the isolating circuit. By virtue of the isolating circuit, the signal-handling circuit and the first circuit are isolated from the second conductor and the signal-handling circuit. Preferably, the achieved isolation permits a communication signal included in the first signal to be conducted within a communication apparatus with less capacitance, and producing less return loss of that signal.
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Hsu Louis L.
Selander Karl D.
Sorna Michael A.
Storaska Daniel W.
Abate Joseph P.
Divecha Nishant
International Business Machines - Corporation
Neff Daryl
Ryman Daniel J
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