06378774 is referenced by 252 patents and cites 1 patents.

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.

Title
IC module and smart card
Application Number
9/568977
Publication Number
6378774 (B1)
Application Date
May 11, 2000
Publication Date
April 30, 2002
Inventor
Kazuo Kobayashi
Tokyo
US
Susumu Igarashi
Tokyo
US
Hidemi Nakajima
Tokyo
US
Susumu Emori
Tokyo
US
Agent
Armstrong Westerman & Hattory
US
Assignee
Toppan Printing
US
IPC
G06K 19/06
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