Pulse or digital communications – Transceivers – Modems
Reexamination Certificate
2007-09-25
2007-09-25
Payne, David C. (Department: 2611)
Pulse or digital communications
Transceivers
Modems
C375S219000, C375S257000, C379S090010, C379S406010
Reexamination Certificate
active
10393745
ABSTRACT:
A communication device (e.g., a modem) is disclosed as including logic that processes a transmit signal before providing a signal to an echo canceler. The processing may include low pass filtering and decimation of the transmit signal. The low pass filter's cut-off frequency preferably is less than the sampling rate associated with the transmit signal.
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Melsa Peter J.
Zogakis Thomas N.
Brady W. James
File Erin M.
Payne David C.
Shaw Steven A.
Telecky , Jr. Frederick J.
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