Pulse or digital communications – Transceivers – Modems
Reexamination Certificate
2007-02-13
2007-02-13
Tran, Khai (Department: 2611)
Pulse or digital communications
Transceivers
Modems
Reexamination Certificate
active
10118859
ABSTRACT:
Operation of a digital subscriber line system in a power saving quiescent mode is described. A quiescent mode (Q-mode) is entered into from a steady-state or normal operation mode in which payload data is transmitted when criteria indicates that the transmitter has stopped transmitting payload data for a certain time period but that the current transmission session has not ended. A Q-mode signal is generated that uses constellation points that are used in the payload carrying state. The peak-to-average ratio (PAR) of the signal is also minimized by a PAR minimization method to find a combination of these constellation points satisfying a PAR threshold.
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Abbas Syed
Long Guozhu
Rashid-Farrokhi Farrokh
Centillium Communications Inc.
Ettehadieh Aslan
Fenwick & West LLP
Tran Khai
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