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US 2014/0191031 A1Published application
Method for preventing unintended contactless interaction when performing contact interaction
AssigneeCirque Corporation
InventorKeith L. Paulsen
Life of this patent
Estimating the term…
Abstract
A system and method for enabling a dual interface smart card reader to be able to determine if data should be read from a smart card using wireless technology or touch technology, even when the data can be accessed through wireless technology.
Claims7
A system for determining if direct contact or contactless communication is to be performed with a smart card, said system comprised of:
- a smart card including a near field communication antenna for contactless communication, electrical traces for direct contact communication and an integrated circuit memory;
- a smart card reader including a near field communication antenna for contactless communication and a direct contact reader for direct contact communication;
- a touch sensor capacitance circuit for detecting changes in charge;
- and
- at least one capacitance electrode coupled to the touch sensor capacitance circuit and disposed on the smart card reader.
2 more elements
A method for determining if direct contact or contactless communication is to be performed with a smart card, said method comprised of:
- 1) providing a smart card including a near field communication antenna for contactless communication, electrical traces for direct contact communication and an integrated circuit memory,
- 2) providing a smart card reader including at least one near field communication antenna for contactless communication and a direct contact reader for direct contact communication, a touch sensor capacitance circuit for detecting changes in charge;
- and at least one capacitance electrode coupled to the touch sensor capacitance circuit and disposed on the smart card reader;
- 3) detecting a presence of a smart card by detecting a change in capacitance on the at least one capacitance electrode;
- and
- 4) determining if the smart card is to be read by the near field communication antenna or the direct contact reader of the smart card reader.
3 more elements
Dependencies are inferred from the claim text.