Pulse or digital communications – Transceivers – Modems
Reexamination Certificate
2008-09-02
2008-09-02
Payne, David C. (Department: 2611)
Pulse or digital communications
Transceivers
Modems
C375S260000
Reexamination Certificate
active
10789552
ABSTRACT:
In general, various methods and apparatus are described that use a multi-tone receiver. The multi-tone receiver detects data in a multiple tone signal. The receiver has a detector module to measure a noise power level present in the system and to detect for an asymmetric Gaussian noise source in the background noise. An equivalent noise power is obtained by applying a compensating gain factor to the asymmetrical noise source. The gain factor is used when the detector indicates that the asymmetric Gaussian noise source exists in the background noise. Any bit-loading algorithm that is based on a symmetric Guassian noise source assumption can also be used with asymmetrical Guassian noise sources if this gain factor is applied.
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2Wire, Inc.
Nguyen Leon-Viet Q
Payne David C.
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