Pulse or digital communications – Transceivers – Modems
Reexamination Certificate
2005-11-15
2005-11-15
Deppe, Betsy L. (Department: 2637)
Pulse or digital communications
Transceivers
Modems
Reexamination Certificate
active
06965637
ABSTRACT:
A shared digital subscriber line modem achieves reduced total power consumption and data security by generating and transmitting a physical data frame which includes a control channel and a data field to only the connected client modem associated with the intended recipient. A second physical frame which does not include the data field is generated and transmitted to all of the other connected client modems. This method results in a reduction in the power required and provides improved data security by preventing data access to non-addressed client modems.
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Davis Gordon Taylor
Derby Jeffrey Haskell
Eleftheriou Evangelos Stavros
Oelcer Sedat
Ware Malcolm Scott
Cockburn Joscelyn G.
International Business Machines - Corporation
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