Patent EP0220703A2 successfully refreshed from Google Patents.
EP0220703A2
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EP
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IC card system
Assignee: Casio Computer Co Ltd
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Filing: 1986-10-27
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Granted: —
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Expires: 2006-10-27
Abstract
Abstract An IC card system according to this invention adopts a so-called intelligent-type IC card (1) which has an internal power source (37) of its own, can store designation data using the power source (37), and can display the storage content on a display unit (1e). When the IC card (1) is inserted in a terminal (2), the presence/absence of designation data is judged from the ON/OFF state of the power source (37) of the card and, thereafter, a predetermined processing operation corresponding to the designation data is executed.
Inventors
- 👤 Shigeyuki Pat.Dep.Dev.Div. Hamura Rd.Cent. Kawana
- 👤 Yoshimi Pat.Dep.Dev.Div. Hamura Rd.Cent Shigenaga
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 01:09
CPC Classifications
G; G07; G07F; G07F7/00; G07F7/08; G07F7/10; G07F7/1008; G06; G06F; G06F15/00; G06F15/02; G06F15/0241; G06K; G06K19/00; G06K19/06; G06K19/067; G06K19/07; G06K19/077; G06K19/07701; G06K19/07703; G06Q; G06Q20/00; G06Q20/30; G06Q20/34; G06Q20/341; G06Q20/3415; G06Q20/355; G06Q20/3552; G06Q20/357; G06Q20/3576
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
132 words
An IC card system including IC card means (1) having first memory means (16, 29) for storing at least transaction data and secret data for identification, and terminal means (2), in which said IC card means (1) is inserted, for performing data communication with said IC card means (1), characterized in that said IC card means (1) further includes; power source means (37) for supplying power to an internal circuit of said IC card means (1), and power source control means (1b, 40, 41, 38) for controlling an ON/OFF state of said power source means; and said terminal means includes at least detection means (61) for detecting the ON/OFF state of said power source means of said IC card means when said IC card means is inserted in said terminal means (2).
Claim 2
Dependent Claim
132 words
An IC card system including IC card means (1) having first memory means (16, 29) for storing at least transaction data and secret data for identification, and terminal means (2), in which said IC card means (1) is inserted, for performing data communication with said IC card means (1), characterized in that said IC card means (1) further includes; power source means (37) for supplying power to an internal circuit of said IC card means (1), and power source control means (1b, 40, 41, 38) for controlling an ON/OFF state of said power source means; and said terminal means includes at least detection means (61) for detecting the ON/OFF state of said power source means of said IC card means when said IC card means is inserted in said terminal means (2).
Claim 3
Dependent Claim
63 words
A system according to claim 1, characterized in that IC card means further includes second memory means (16a) for storing data indicating the ON/OFF state of said power source means, and said detection means (61) of said terminal means (2) determines the ON/OFF state of said power source means in accordance with whether or not predetermined data is stored in said area (16a).
Claim 4
Dependent Claim
30 words
A system according to claim 1, characterized in that said IC card means (1) further includes display means (1e, 35), thereby displaying the detection result of said detection means (61).
Claim 5
Dependent Claim
51 words
A system according to claim 3, characterized in that said IC card means further includes keyboard means (1c, 1d, 21) for selecting one of a plurality of applications prestored in said IC card system, and said display means (1e, 35) displays a name of an application selected by said keyboard means.
Claim 6
Dependent Claim
50 words
A system according to claim 1, characterized in that said terminal means (2) further includes means for outputting a reset signal and resetting said IC card means (1), and said IC card means (1) further includes means for preventing reset processing by said reset signal from said terminal means (2).
Claim 7
Dependent Claim
59 words
A system according to claim 5, characterized in that said IC card system (1) further includes means (36, 39) for switching a power supply for said IC card means (1) from said power source means (31) to a power supply output from said terminal means (2) when said IC card means (1) is inserted in said terminal means (2).
References Cited (Backward Citations)
No citation records indexed.
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