Patent number 8650421 is assigned to
The following quote was obtained by the news editors from the background information supplied by the inventors: "The present invention relates to a network interface apparatus; particularly, it relates to a network interface apparatus with power saving function and a related power saving method thereof.
"An electronic device or a computer system is often required to communicate with other devices or equipments via network. To connect to the network, such electronic device is provided with a network interface apparatus as an interface for connection with the network.
"When the electronic device is in use, the network interface apparatus maybe operated in a disconnection status, or in a connection status but no data packet is being transmitted. Under such circumstance, if the network interface apparatus is still in a high power consumption mode, it is a waste of power.
"Therefore, for saving power, the prior art reduces a voltage supplied by a system power regulator when the network interface apparatus is not connected to network (disconnection status). However, there is only one system power regulator to supply power in the prior art, and therefore the power supplied by the system power regulator can not be reduced too much, nor can it be completely turned off. Thus, even when the network interface apparatus operates in a disconnection status, the power consumption of the entire circuit is still not satisfactory."
In addition to the background information obtained for this patent, VerticalNews journalists also obtained the inventors' summary information for this patent: "In view of the foregoing, the present invention provides a network interface apparatus capable of saving unnecessary power consumption effectively.
"According to the present invention, a network interface apparatus comprises: a physical layer for receiving a packet in a network; a medium access control layer coupled to the physical layer for processing the packet received by the physical layer to output a processed signal; a power management module for detecting a network connection status to generate a detection result, and generating a power control signal according to the detection result; a first regulator coupled to the physical layer and the medium access control layer for supplying a first supply voltage to the physical layer and the medium access control layer according to the power control signal; and a second regulator coupled to the power management module for supplying a second supply voltage to the power management module; wherein when the power management module detects that the network connection is operated in a disconnection status, it controls the first regulator such that the first supply voltage is lower than the second supply voltage.
"The objectives, technical details, features, and effects of the present invention will be better understood with regard to the detailed description of the embodiments below, with reference to the drawings."
URL and more information on this patent, see: Yu, Ting-Fa; Fang, Li-Wei; Lee, Tsung-Cheng; Lee, Chien-Sheng. Network Interface Apparatus and Related Power Saving Method. U.S. Patent Number 8650421, filed
Keywords for this news article include: Electronics,
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