Noncontact IC card reader/writer integrated with antenna
First Claim
1. A noncontact IC card reader/writer integrated with an antenna, comprising:
- a loop antenna, which supplies electric power and send data to a noncontact IC card by electromagnetic induction and acquires receive data from the noncontact IC card by load fluctuation;
a magnetic body, arranged closely at the back of the loop antenna;
a first metallic plate, arranged on the back side of the magnetic body; and
a second metallic plate, arranged on the back side of the first metallic plate and larger than the first metallic plate in size.
1 Assignment
0 Petitions
Accused Products
Abstract
The object of the invention is to provide a noncontact IC card reader/writer integrated with an antenna that does not require the limitation of an installation location and the adjustment of a resonance frequency of the antenna, is convenient in installation, is provided with a stable characteristic, is small-sized and low-priced. To achieve the object, the invention is provided with a loop antenna that supplies electric power and send data to a noncontact IC card by electromagnetic induction and acquires receive data from the noncontact IC card by load fluctuation, a magnetic body arranged closely at the back of the loop antenna, a first metallic plate arranged on the back side of the magnetic body and a second metallic plate arranged on the back side of the first metallic plate and larger than the first metallic plate in size.
-
Citations
18 Claims
-
1. A noncontact IC card reader/writer integrated with an antenna, comprising:
-
a loop antenna, which supplies electric power and send data to a noncontact IC card by electromagnetic induction and acquires receive data from the noncontact IC card by load fluctuation;
a magnetic body, arranged closely at the back of the loop antenna;
a first metallic plate, arranged on the back side of the magnetic body; and
a second metallic plate, arranged on the back side of the first metallic plate and larger than the first metallic plate in size. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
-
Specification