Manually operated switch for enabling and disabling an RFID card
First Claim
1. A radio operated data card comprising, in combination, an on-card antenna, on-card electronic circuitry including a data memory and a transceiver for transferring data between said memory and a remote host system via said antenna, a user-activated, normally open electrical switching circuit connected between the on-card electronic circuitry and said on-card antenna, said normally open switching circuit disabling the transfer of information via said antenna until said switching circuit is intentionally closed by the cardholder to enable such transfer, said switching circuit automatically reopening after being intentionally closed the cardholder to again disable such transfer.
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Accused Products
Abstract
A radio operated data card whose outer jacket forms a sealed protected housing for internal electrical components, including an RFID integrated circuit which incorporates data storage and a radio frequency transceiver, an on card antenna, and manually operated, normally open electrical switch contacts connected between the on-card electronic circuitry and the antenna. The open switch contacts normally disable the card, protecting the data on the card from being surreptitiously read until the switch contacts are intentionally closed by the cardholder to enable data transfer to occur. The cardholder may activate the card by applying external pressure to the surface of the card at a predetermined position, closing the switch contacts which open again automatically when pressure is removed. A tactile indicia on the surface of the card allows the cardholder to determine by touch where the card should be pressed to enable data transfers to occur. In an alternate embodiment, a mating key in the possession of the cardholder may be brought into proximity with the card to close the normally open switch to permit information to be read from the card.
169 Citations
23 Claims
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1. A radio operated data card comprising, in combination,
an on-card antenna, on-card electronic circuitry including a data memory and a transceiver for transferring data between said memory and a remote host system via said antenna, a user-activated, normally open electrical switching circuit connected between the on-card electronic circuitry and said on-card antenna, said normally open switching circuit disabling the transfer of information via said antenna until said switching circuit is intentionally closed by the cardholder to enable such transfer, said switching circuit automatically reopening after being intentionally closed the cardholder to again disable such transfer.
- 13. A radio operated data card as set forth in 4 wherein at least one of said electrical contacts comprises a ferromagnetic material that is moved by the application of an external magnetic field.
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17. A radio operated data card comprising an outer jacket defining a sealed protected housing for internal electrical components, said components comprising:
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on-card electronic circuitry including a data memory, an on-card antenna, a transceiver for transferring data between said memory and a remote host system via said antenna, and normally open electrical switch contacts connected between the on-card electronic circuitry and said on-card antenna, said normally open switching circuit disabling the transfer of information via said antenna until said switch contacts are intentionally closed by the cardholder to enable such transfer, said switching circuit automatically reopening after being intentionally closed the cardholder to again disable such transfer.
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Specification