Reader coil antenna, and non-contacting type card identification system using the same
First Claim
1. A reader coil antenna of a non-contacting type card identification system, comprising:
- an outer coil forming a predetermined loop, and forming a magnetic field by receiving a current; and
at least one inner coil disposed inside the loop of the outer coil, wherein said at least one inner coil generates a constructive interference in a direction of the magnetic field formed by the outer coil, wherein the outer coil and the inner coil are mounted on a printed circuit board, and wherein one side of the printed circuit board comprises a magnetic inducing layer coated with a non-conductive magnetic material.
1 Assignment
0 Petitions
Accused Products
Abstract
The present invention discloses a reader coil antenna, and a non-contacting type card identification system using the same for increasing the sensing region of the card reader system. The reader coil antenna includes an outer coil for forming a predetermined loop, and which forms a magnetic field by receiving a current, along with at least one inner coil disposed inside the loop of the outer coil, for generating a constructive interference in a direction of the magnetic field of the outer coil. The card identification system, of the present invention, includes a reader coil antenna which forms a magnetic field due to a signal applied to flow in a single direction, a card reader for transmitting an operating signal through the reader coil antenna, and decoding an input signal from a non-contacting type card, and a control unit for deciding identification of the non-contacting type card according to the decoded signal.
-
Citations
17 Claims
-
1. A reader coil antenna of a non-contacting type card identification system, comprising:
-
an outer coil forming a predetermined loop, and forming a magnetic field by receiving a current; and
at least one inner coil disposed inside the loop of the outer coil, wherein said at least one inner coil generates a constructive interference in a direction of the magnetic field formed by the outer coil, wherein the outer coil and the inner coil are mounted on a printed circuit board, and wherein one side of the printed circuit board comprises a magnetic inducing layer coated with a non-conductive magnetic material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
-
13. A non-contacting type card identification system using a reader coil antenna, comprising:
-
a reader coil antenna which forms a magnetic field from a signal applied to flow in an single direction;
a card reader to transmit an operating signal through the reader coil antenna, and decode an input signal from a non-contacting type card; and
a control unit to decide identification of the non-contacting type card according to the decoded signal, wherein the reader coil antenna comprises;
an outer coil forming a predetermined loop, and forming a magnetic field by receiving a current; and
at least one inner coil disposed inside the loop of the outer coil, wherein said at least one inner coil generates a constructive interference in a direction of the magnetic field formed by the outer coil, and wherein the outer coil and the inner coil are mounted on a printed circuit board, and wherein one side of the printed circuit board comprises a magnetic inducing layer coated with a non-conductive magnetic material. - View Dependent Claims (14, 15, 16, 17)
-
Specification