IC card having energy input and data exchange elements on opposi

Details IC card having energy input and data exchange elements on opposi IC card having energy input and data exchange elements on opposi

1988-01-28

1990-12-18

Trafton, David

Registers

Records

Conductive

235454, 235491, G06K 1906

Patent

active

049788400

ABSTRACT:
An IC card is constructed for receiving external energy and transmitting and receiving data to and from an external data read/write unit with no contact between them. One main surface of the IC card is provided with a power generating element for externally receiving energy to generate power, and the other main surface of the IC card with semicondcutor elements for transmitting and receiving energy of data information.
The IC card uses semiconductor photoelements to drive the IC card and the external data read/write unit with no mechanical contact between them. They will realize, therefore, a small and lightweight communication system at a low cost by using conventional parts and structures to perfectly prevent data communication energy and power supplying energy from interfering with each other, thereby preventing an erroneous operation of the IC card and improving reliability thereof.

REFERENCES:
patent: 4007355 (1977-02-01), Moreno
patent: 4575621 (1986-03-01), Dreifus
patent: 4792910 (1988-12-01), Lange

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