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公开(公告)号：US20200343940A1
公开(公告)日：2020-10-29
申请号：US16856643
申请日：2020-04-23
Applicant: Humatics Corporation
Inventor： Gregory L. Charvat , Senter Reinhardt
Abstract: A device comprising: a receive antenna configured to receive radio-frequency (RF) signals having a first center frequency; a transmit antenna configured to transmit radio-frequency (RF) signals having a second center frequency that is a harmonic of the first center frequency; and a processor. The processor is configured to: generate a plurality of wake-up signals at a respective plurality of random times; and for each one of the plurality of wake-up signals, in response to generating the each one wake-up signal, cause the transmit antenna to transmit an RF signal having the second center frequency and indicating a code associated with the device to an interrogator device different from the device.
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