Contactless payment card reader with a frusto-conical operating volume
First Claim
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1. A reader arrangement for reading contactless payment cards, the reader comprising:
- an RF antenna circuit; and
a landing plane positioned at a fixed distance from the RF antenna, wherein the RF antenna circuit is configured to generate a magnetic field Hov in a frusto-conical shaped operating volume, wherein the landing plane forms the smaller diameter base of the frusto-conical shaped operating volume, wherein the magnetic field Hov in the frusto-conical shaped operating volume is specified to power and communicate with the contactless payment cards placed in the frusto-conical shaped operating volume, wherein the frusto-conical shaped operating volume comprises;
a frusto cone having an axial length S1, a small base diameter D1 and a large base diameter D2; and
a cylindrical section having a diameter D2 and an axial length S2, wherein the RF antenna has a diameter of about 7 cms, wherein the landing plane is positioned at a fixed distance of about 15 cms from the RF antenna, and wherein the parameters S1, S2, D1 and D2 have nominal values of about 1, 3, 3 and 5 cms, respectively.
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Abstract
A contactless payment card reader has a frusto-conical operating volume. The frusto-conical shaped operating volume has defined magnetic field strengths for powering and communicating with proximity payment cards. The reader can serve as a reference reader, which is representative of product readers deployed in contactless payment card systems, to test product contactless payment cards under conditions that simulate field use of the cards.
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Citations
11 Claims
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1. A reader arrangement for reading contactless payment cards, the reader comprising:
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an RF antenna circuit; and a landing plane positioned at a fixed distance from the RF antenna, wherein the RF antenna circuit is configured to generate a magnetic field Hov in a frusto-conical shaped operating volume, wherein the landing plane forms the smaller diameter base of the frusto-conical shaped operating volume, wherein the magnetic field Hov in the frusto-conical shaped operating volume is specified to power and communicate with the contactless payment cards placed in the frusto-conical shaped operating volume, wherein the frusto-conical shaped operating volume comprises; a frusto cone having an axial length S1, a small base diameter D1 and a large base diameter D2; and a cylindrical section having a diameter D2 and an axial length S2, wherein the RF antenna has a diameter of about 7 cms, wherein the landing plane is positioned at a fixed distance of about 15 cms from the RF antenna, and wherein the parameters S1, S2, D1 and D2 have nominal values of about 1, 3, 3 and 5 cms, respectively. - View Dependent Claims (2)
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3. A reference reader for testing a contactless payment card that can be used with any of several card readers deployed in an electronic payment system, the reference reader comprising:
an RF antenna circuit whose external behavior is representative of the behaviors of the several readers deployed in the electronic payment system, wherein the RF antenna circuit is configured to exhibit the representative external behavior to the contactless payment card under test and to generate a magnetic field Hov in a frusto-conical shaped operating volume, and wherein the magnetic field Hov in the frusto-conical shaped operating volume is specified to power and communicate with the contactless payment card placed in the frusto-conical shaped operating volume. - View Dependent Claims (4, 5, 6, 7, 8, 9)
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10. A method for testing the behavior of a contactless payment card that can be used with any of several card readers deployed in an electronic payment system, the method comprising the steps of:
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providing a reference reader having a frusto-conical operating volume, the reference reader comprising an RF antenna circuit whose external behavior is representative of the behaviors of the several readers deployed in the electronic payment system, wherein the RF antenna circuit is configured to exhibit the representative external behavior to the payment card under test and to generate a magnetic field Hov in the frusto-conical shaped operating volume, and wherein the magnetic field Hov in the frusto-conical shaped operating volume is specified to power and communicate with the contactless payment card when placed in the frusto-conical shaped operating volume; placing the contactless payment card at a first position in the frusto-conical shaped operating volume; and measuring the data reception and power sensitivity of the contactless card placed in the operating volume. - View Dependent Claims (11)
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Specification