Apparatus and method to electromagnetically shield portable consumer devices
AssigneeVisa U.S.A. Inc.
InventorsAyman Hammad, Phil Dixon
Life of this patent
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Abstract
An apparatus and method is provided to shield contactless portable electronic consumer devices such as radio frequency identification devices (RFID), tokens, mini-cards, key fobs, cellular phones, smartcards, etc. from wireless interrogation. In one embodiment, a contactless portable consumer device which includes a first antenna is shielded from unauthorized wireless interrogation with a radio frequency (RF) shield. The RF shield includes electrically conductive, non-ferromagnetic material and is configured to prevent unauthorized data transfer between a second antenna external to the portable consumer device and the first antenna.
Claims19
An apparatus comprising:
- a portable consumer device comprising a first antenna;
- and
- an RF shield comprising an electrically conductive, non-ferromagnetic material, wherein the RF shield is configured to prevent unauthorized data transfer between a second antenna external to the portable consumer device and the first antenna, wherein the RF shield is in the form of a sticker, wherein the portable consumer device is shielded on only one side of the portable consumer device using the sticker to stick to the portable consumer device.
An apparatus comprising:
- a portable consumer device comprising a first antenna;
- and
- an RF shield comprising an electrically conductive, non-ferromagnetic material, wherein the RF shield is configured to prevent unauthorized data transfer between a second antenna external to the portable consumer device and the first antenna, wherein the RF shield is in the form of a sticker that covers the first antenna, wherein the portable consumer device is shielded on only one side of the portable consumer device using the sticker to stick to the portable consumer device.
An apparatus comprising:
- a portable consumer device comprising a first antenna;
- and
- an RF shield in the form of a sticker, wherein the RF shield is configured to prevent unauthorized data transfer between a second antenna external to the portable consumer device and the first antenna, “wherein the portable consumer device is shielded on only one side of the portable consumer device using the sticker by sticking to the portable consumer device,” and after “activation information”, insert “for the portable consumer device”. wherein the sticker has activation information.
An apparatus comprising:
- a portable consumer device comprising a first antenna;
- and
- an RF shield in the form of a sticker, wherein the RF shield is configured to prevent unauthorized data transfer between a second antenna external to the portable consumer device and the first antenna, the sticker is attached to a sheet or envelope external to the portable consumer device, wherein the portable consumer device is shielded on only one side of the portable consumer device using the sticker, wherein the sticker has activation information for the portable consumer device.
Dependencies are inferred from the claim text.