US 7,467,315 B2 · Method for enabling power-saving mode

Abstract

In a method for enabling a power-saving mode for an electronic apparatus, a power mode index Ips is determined according to transmission indices Bit0˜Bitn and/or port situation indices Ip0˜Ipm. For example, when the transmission indices Bit0˜Bitn are all under inactive states or when all the port situation indices Ip0˜Ipm are under disable states, the power mode index Ips indicates a highly power-saving mode D3. When less transmission indices are under inactive states or when less port situation indices Ip0˜Ipm are under port disable states, the power mode index Ips indicates a primary or intermediate power-saving mode D1 or D2. The power mode index Ips can also indicate no power-saving mode D0 when all transmission indices and/or port situation indices are active/enabled or the electronic apparatus is forced to remain normal power.

Claims13

Dependent claims

A method for enabling a power-saving mode for an electronic apparatus, said electronic apparatus including a peripheral interface device for optionally connecting thereto at least one peripheral device, said method comprising steps of:

determining each of a plurality of transmission indices corresponding to a plurality of transmission modes, respectively, to indicate an active or inactive transmission state when time is counted up to a first preset value;
and
having said peripheral interface device enter a first power-saving mode when all of said transmission indices indicate said inactive transmission state, and enter a second power-saving mode when there is a certain number of said transmission indices indicate said active transmission state.

A method for enabling a power-saving mode for an electronic apparatus, said electronic apparatus including a peripheral interface device having a plurality of expansion ports for optionally connecting thereto a plurality of peripheral devices, said method comprising steps of:

determining each of a plurality of port situation indices corresponding to said expansion ports, respectively, to indicate an active or inactive port state when time is counted up to a second preset value said first input value and said first reference value;
and
having said peripheral interface device enter a first power-saving mode when all of said port situation indices indicate said inactive port state, and enter a second power-saving mode when there is a certain number of port situation indices indicate said active port state.

Dependencies are inferred from the claim text.

Method for enabling power-saving mode

Life of this patent

Method for enabling power-saving mode

Life of this patent

Abstract

Claims13