MULTICASTING SYSTEM AND NETWORK DEVICE TO TRANSMIT DATA AS AN AGENCY AND A METHOD THEREOF
First Claim
1. A multicasting system having a plurality of network devices, the multicasting system comprising:
- a first network device to transmit a power saving mode change signal and to change a current mode to a power saving mode; and
a second network device to receive the power saving mode change signal from the first network device, and if an information request signal is received from another network device, to transmit response data defined by the first network device to the another network device which has transmitted the information request signal.
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Abstract
A multicasting system and a network device to transmit data as an agency, and a method of transmitting data as an agency. The multicasting system to transmit data as an agency according to an embodiment of the present general inventive concept includes a first network device to transmit a power saving mode change signal and to change a current mode to a power saving mode, and a second network device to receive the power saving mode change signal from the first network device, and if an information request signal is received from one of the plurality of network devices, to transmit a response data defined by the first network device to the network device which has transmitted the information request signal. Accordingly, although a network device is in a power saving mode, the network device can normally receive data.
6 Citations
22 Claims
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1. A multicasting system having a plurality of network devices, the multicasting system comprising:
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a first network device to transmit a power saving mode change signal and to change a current mode to a power saving mode; and a second network device to receive the power saving mode change signal from the first network device, and if an information request signal is received from another network device, to transmit response data defined by the first network device to the another network device which has transmitted the information request signal. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A network device to transmit data as an agency, comprising:
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a network interface which to receive a power saving mode change signal from a network device to perform power saving among a plurality of network devices, and response data defined by the network device to perform power saving; a storage unit to store the received response data; and a controller to transmit the stored response data to another network device, which has transmitted an information request signal, through the network interface, if the information request signal is received from one of the plurality of network devices. - View Dependent Claims (8, 9, 10)
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11. A method of transmitting data as an agency, the method comprising:
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receiving a power saving mode change signal and response data from a network device to perform power saving among a plurality of network devices; storing the received response data; and if an information request signal is received from one of the plurality of network devices, transmitting the stored response data to the network device which has transmitted the information request signal. - View Dependent Claims (12, 13, 14)
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15. A multicasting system having a plurality of network devices, comprising:
a network device to receive response data from one of network devices, to receive an information request signal from another one of the network devices, and to transmit the received response data from the one of the network devices to the another one of the network devices according to the received information request signal as an agency of the one of the network devices. - View Dependent Claims (16, 17, 18, 19)
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20. A method of a multicasting system having a plurality of network devices, the method comprising:
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receiving response data from one of network devices; receiving an information request signal from another one of the network devices; and transmitting the received response data from the one of the network devices to the another one of the network devices according to the received information request signal as an agency of the one of the network devices.
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21. A multicasting system having a plurality of network devices, comprising:
a network device to transmit a power saving mode change signal according to the power saving mode change signal, and to change a mode to a power saving mode upon transmitting response data to the another network device to another network device.
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22. A method of a multicasting system having a plurality of network devices, the method comprising:
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transmitting a power saving mode change signal according to the power saving mode change signal; and changing a mode to a power saving mode upon transmitting response data to the another network device to another network device.
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Specification