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US 2009/0263141 A1Published application
Dual use of test point power monitor
AssigneeArris
InventorsZoran Maricevic, Eric Cormier, Benedict J. Jackson, Jayesh Bhatt, Marcel F. Schemmann, Zhijian Sun
Life of this patent
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Abstract
A channel alignment system in an optical communication network includes logic to sample power of a quadrature amplitude modulation (QAM) channel at a component downstream from a QAM modulator. The system determines if the sampled channel power has a sufficient level. The system signals power control logic of the QAM modulator to adjust a gain of the sampled channel.
Claims10
A quadrature amplitude modulation (QAM) modulator comprising:
- tunable power monitor logic coupled to a test port;
- and
- power control logic coupled to the test point.
A channel alignment system in an optical communication network, comprising:
- logic to sample power of a quadrature amplitude modulation (QAM) channel at a component downstream from a QAM modulator;
- logic to determine if the sampled channel power has a sufficient level;
- logic to signal power control logic of the QAM modulator to adjust a gain of the sampled channel.
Dependencies are inferred from the claim text.