Method for saving power in a network system
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United States of America Patent
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Aug 27, 2002
Grant Date -
N/A
app pub date -
Jun 2, 1998
filing date -
Mar 17, 1998
priority date (Note) -
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Abstract
A method for saving power in a network system, such as the Ethernet. Assume that all nodes in the network system can support at least two transmission protocols, such as 10 BaseT and 100 BaseTX in the Ethernet. First, network nodes may continuously detect the status of the network system and determine whether the network is in an idle state. If the idle period exceeds a pre-determined period, a first auto-negotiation function, in which priorities of the transmission protocols are inversely proportional to the power consumption, will be activated to select 10 BaseT. When the network system attempts to transmit data, a second auto-negotiation function, in which priorities of the transmission protocols are directly proportional to the data transmission performance, will be activated to select 100 BaseTX.
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