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Patent

Combined active and passive wireless communication device

A wireless communication device comprises a control unit, an antenna interface, an active wireless transceiver operable together with the control unit and antenna interface, a passive wireless transceiver operable together with the antenna interface and operable by harvesting power from received radio messages. The device is further configured to deactivate the one or more active wireless transceivers and control unit to an inactive state and, subsequently, by the passive wireless transceiver, activate the control unit and an active wireless transceiver to an active state when the passive wireless transceiver receives a message from the antenna interface.
Patent Publication Number: US2020052371
Source: USPTO
Year filing: 2018
Year approval: 2021
Year publication: 2021
Status: Assigned
Technology domains: Electrical machinery, apparatus, energy, Telecommunications
Validated for IOF-key: Yes