Optical communications – Diagnostic testing – Test signal
Reexamination Certificate
2008-07-01
2008-07-01
Tran, Dzung (Department: 2613)
Optical communications
Diagnostic testing
Test signal
C398S022000, C398S033000
Reexamination Certificate
active
07394980
ABSTRACT:
A channel transponder tests a circuit in a communication network. The channel transponder includes short reach receiver circuitry, long reach transmitter circuitry, long reach receiver circuitry, generator circuitry, short reach transmitter circuitry, and a connector. The short reach receiver circuitry receives a first short reach signal. The long reach transmitter circuitry transmits a first long reach signal based on the first short reach signal. The long reach receiver circuitry receives a second long reach signal. The generator circuitry generates a test signal. The short reach transmitter circuitry transmits a second short reach signal based on the second long reach signal and transmits the test signal from the generator circuitry to the circuit wherein the test signal is monitored over the circuit to determine performance of the circuit. The connector connects the generator circuitry to the short reach transmitter circuitry.
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Sprint Communications Company L.P.
Tran Dzung
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