Abstract: The method includes: acquiring an energy price of each node in a wireless relay network, and link information about links between each node and its neighboring nodes, wherein the energy price is determined according to the following rule: the fewer residual energy of a node is, the higher the energy price of the node is; according to the energy price of each node and the link information, determining, in the case that each node is selected as a relay node, power allocation corresponding to a minimum value of an objective function that is based on the energy price of the node; and based on the power allocation and the energy price of each node, determining the node and power allocation corresponding to the minimum value of the objective function used when the power allocation is performed for each node as the relay node and power allocation for data transmission, respectively.

Abstract: A system for transmitting graphic information from a writing area to a display device. The method can include the operation of transmitting a signal from a writing device. The signal can be received by a plurality of transceivers, each of the transceivers being placed a sufficient distance from the remaining plurality of transceivers that there is a calculable time difference of the wireless signal received between the plurality of transceivers to enable a determination of the writing device's location and movement. A further operation is displaying the writing device's location and movement on a display device such that the electronic medium shows substantially similar graphic information as compared to the writing area.

Abstract: Methodology for processing of RF signals for receiving and transmission, which varies the frequencies of local oscillators, in order to enable the receivers and transmitters to operate with higher performance in wider or multi-bands. bands. Their integrations into ICs are also made easier.

Abstract: A system for transmitting graphic information from a writing area to a display device. The method can include the operation of transmitting a signal from a writing device. The signal can be received by a plurality of transceivers, each of the transceivers being placed a sufficient distance from the remaining plurality of transceivers that there is a calculable time difference of the wireless signal received between the plurality of transceivers to enable a determination of the writing device's location and movement. A further operation is displaying the writing device's location and movement on a display device such that the electronic medium shows substantially similar graphic information as compared to the writing area.

Abstract: Methodology for processing of RF signals for receiving and transmission, which varies the frequencies of local oscillators, in order to enable the receivers and transmitters to operate with higher performance in wider or multi-bands. Their integrations into ICs are also made easier.