RFID tag with antenna de-activation switch

Patent metadata

Field	Value
Publication number	US-11456780-B2
Application number	US-202117194748-A
Country	US
Kind code	B2
Filing date	Mar 8, 2021
Priority date	Mar 9, 2020
Publication date	Sep 27, 2022
Grant date	Sep 27, 2022

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.

First claim

What is claimed is:

1. 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.

2. The system of claim 1 , wherein the electronic device, when in the activated state, is operable to transmit the fifth signal within a fourth frequency range, the fourth frequency range overlapping, at least in part, with the first frequency range.

3. The system of claim 1 , wherein the electronic device, when in the activated state, is operable to receive the fourth signal within a fourth frequency range, the fourth frequency range overlapping, at least in part, with the first frequency range.

4. The system of claim 1 , wherein the electronic device, when in the activated state, is operable to transmit the fifth signal within a fourth frequency range, the fourth frequency range overlapping, at least in part, with the second frequency range.

5. The system of claim 1 , wherein the electronic device, when in the activated state, is operable to receive the fourth signal within a fourth frequency range, the fourth frequency range overlapping, at least in part, with the second frequency range.

6. The system of claim 1 , wherein the activated state is determined by the electronic device being powered on and the de-activated state is determined by the electronic device not being powered on.

7. The system of claim 1 , wherein the activated state corresponds to the electronic device being in a state for transmitting the fifth signal.

8. The system of claim 1 , wherein the activated state corresponds to the electronic device being in a state for receiving the fourth signal.

9. 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.

10. The device of claim 9 , wherein the activated state corresponds to the electronic device being powered on.

11. The device of claim 9 , wherein:
the second signal has a second frequency range;
the fourth signal has a fourth frequency range; and
the second frequency range and the fourth frequency range overlap, at least in part.

12. The device of claim 9 , wherein:
the first signal has a first frequency range;
the fourth signal has a fourth frequency range; and
the first frequency range and the fourth frequency range overlap, at least in part.

13. The device of claim 9 , wherein the disabled communication between the passive radio frequency identification tag and the antenna prevents the first signal from interfering with the electronic device's transmission of the fourth signal.

Assignees

• Gentex Corp

Inventors

• Dorst Jonathan E
• Klaver Thomas D
• Witkowski Todd R

Classifications

• H04B5/24

  Inductive coupling · CPC title

• G08B13/242

  Tag deactivation · CPC title

• G08B13/2417

  having a radio frequency identification chip · CPC title

• G06K19/0739

  the incapacitated circuit being part of an antenna · CPC title

• G06K19/07749

  the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card · CPC title