Patent ID: 7866322

Claim:
A system for transferring an energizing signal to an in-vivo device, said system comprising: an in-vivo sensing device, the in-vivo device comprising a signal transmitter configured to transmit a first signal, an energy storage unit, and a signal receiving unit for receiving a second signal for being stored in the energy storage unit; and an external phased array antenna, the phased array antenna comprising two or more antennas for receiving the first signal in a reception order according to reception time(s), wherein the two or more antennas are configured to transmit the second signal in a reversed order of the reception order of the first signal, such that the time difference between transmission of the second signal through a first antenna of the two or more antennas and transmission of the second signal through a second antenna of the two or more antennas equals to the time difference between the reception times of the first signal at the first antenna and the second antenna.