Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Of data transmission
Reexamination Certificate
2006-06-20
2006-06-20
Tran, Quoc (Department: 2643)
Telephonic communications
Diagnostic testing, malfunction indication, or electrical...
Of data transmission
C379S001010, C379S027060, C379S028000, C379S394000
Reexamination Certificate
active
07065180
ABSTRACT:
A system for monitoring a plurality of communication circuits includes an impedance element configured to be switchably connected to one of the plurality of communication circuits. The impedance element is configured as a short circuit relative to the one of the plurality of communication circuits. The system includes an AC current mirror in communication with the impedance element. The system includes a monitor access element in communication with the AC current mirror. The system includes a communication circuit monitor configured to be connected to the monitor access element. To monitor the one of the plurality of communication circuits, the impedance element is switchably connected to the one of the plurality of communication circuits, thereby connecting the communication circuit monitor to the one of the plurality of communication circuits with a minimum of disruption to data communication within the one of the plurality of communication circuits.
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Foley & Lardner LLP
Spirent Communications of Rockville, Inc.
Tran Quoc
Villacorta Gilberto M.
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