RFID tag with antenna de-activation switch
AssigneeGentex Corporation
InventorsJonathan E. Dorst, Thomas D. Klaver, Todd R. Witkowski
Life of this patent
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Abstract
A system, device, and method are disclosed for reducing or eliminating interference between proximate electronic devices. The system, device, and method rely on a switch communicatively disposed between a signal origination device and an antenna. Further, the switch is connected to an electronic device and is operable to receive a signal from the electronic device corresponding to whether the electronic device is in an activated or de-activated state. Additionally, when the electronic device is in an activated state, the switch is operable to open, preventing communication between the signal origination device and the antenna.
Claims13
A system comprising:
- a signal origination device operable to communicate a first signal when in a presence of a second signal, the first signal within a first frequency range and the second signal within a second frequency range;
- a switch connected to the signal origination device;
- an antenna connected to the switch, the antenna operable to transmit the first signal;
- and an electronic device operable to wirelessly communicate with a remote device via a fourth signal, the electronic device:
- being at least one of a cell phone, a medical device, a rear-view mirror, a garage door controller, and an integrated toll module,
- connected to the switch,
- operable between:
- an activated state where the electronic device is operable to at least one of:
- wirelessly receive the fourth signal from a remote device, and transmit a fifth signal to the remote device, and
- a de-activated state, and
- operable to send a third signal to the switch, the third signal corresponding to the electronic device being in the activated state;
- wherein, the switch is operable to open in response to receiving the third signal, preventing communication between the signal origination device and the antenna and reducing the potential for the first signal transmitted by the antenna to interfere with the wireless communication between the electronic device and the remote device.
A device comprising:
- a passive radio frequency identification tag operable to communicate a first signal in the presence of a second signal;
- an antenna communicatively connected to the passive radio frequency identification tag and operable to transmit the first signal;
- and
- a switch communicatively disposed between the passive radio frequency identification tag and the antenna, the switch operable to:
- receive a third signal from an electronic device, the electronic device being at least one of a cell phone, a medical device, a rear-view mirror, a garage door controller, and an integrated toll module, the third signal corresponding to an activated state of the electronic device where the electronic device is operable to wirelessly communicate a fourth signal with a remote device, and
- in response to receiving the third signal, the switch opens and disable communication between the passive radio frequency identification tag and the antenna, preventing the first signal from interfering with the wireless communication between the electronic device and the remote device.
Dependencies are inferred from the claim text.