IC module and smart card
First Claim
1. A smart card having both a function of a contact and a function of a non-contact, the smart card comprising an IC module and an antenna element, whereinsaid IC module comprises an IC chip incorporating a contact transmission function and a non-contact transmission function, and a module substrate having an external terminal serving as a contact transmission element and a first coupler coil, said antenna element comprises an antenna for performing at least one of power reception and signal transmission/reception with an external read/write apparatus, and a second coupler coil connected to said antenna, and said first coupler coil of said IC module and said second coupler coil of said antenna element for non-contact transmission are disposed to be closely coupled to each other, and said IC module and said antenna element are coupled in a non-contact manner by transformer coupling.
1 Assignment
0 Petitions
Accused Products
Abstract
A smart card comprises an IC module and an antenna for non-contact transmission. The IC module has both a contact-type function and a non-contact-type function. In the contact-type function, power reception and signal transmission/reception is effected via an electrical contact. In the non-contact-type function, power reception and signal transmission/reception is effected in a non-contact state by an electromagnetic coupling system without providing the IC card with an electrical contact. The IC module and the antenna comprise first and second coupler coils, respectively, which are disposed to be closely coupled to each other, and the IC module and the antenna are coupled in a non-contact state by transformer coupling. An antenna coil is disposed so as not to overlap an engagement portion for the IC module, which is a region of an external terminal electrode serving as a contact-type electrode, an embossing region, or a magnetic stripe region.
-
Citations
9 Claims
-
1. A smart card having both a function of a contact and a function of a non-contact, the smart card comprising an IC module and an antenna element, wherein
said IC module comprises an IC chip incorporating a contact transmission function and a non-contact transmission function, and a module substrate having an external terminal serving as a contact transmission element and a first coupler coil, said antenna element comprises an antenna for performing at least one of power reception and signal transmission/reception with an external read/write apparatus, and a second coupler coil connected to said antenna, and said first coupler coil of said IC module and said second coupler coil of said antenna element for non-contact transmission are disposed to be closely coupled to each other, and said IC module and said antenna element are coupled in a non-contact manner by transformer coupling.
Specification