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KR950001556A - Prepaid IC card and how to avoid tampering with it - Google Patents

Prepaid IC card and how to avoid tampering with it Download PDF

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Publication number
KR950001556A
KR950001556A KR1019930011833A KR930011833A KR950001556A KR 950001556 A KR950001556 A KR 950001556A KR 1019930011833 A KR1019930011833 A KR 1019930011833A KR 930011833 A KR930011833 A KR 930011833A KR 950001556 A KR950001556 A KR 950001556A
Authority
KR
South Korea
Prior art keywords
amount
card
input
prepaid
memory
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
KR1019930011833A
Other languages
Korean (ko)
Inventor
권순홍
김은호
진병욱
Original Assignee
조백제
한국전기통신공사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 조백제, 한국전기통신공사 filed Critical 조백제
Priority to KR1019930011833A priority Critical patent/KR950001556A/en
Priority to FR9407883A priority patent/FR2708363B1/en
Priority to DE4422682A priority patent/DE4422682A1/en
Priority to JP6146436A priority patent/JPH07147613A/en
Publication of KR950001556A publication Critical patent/KR950001556A/en
Priority to KR2019950018713U priority patent/KR950008425Y1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F7/00—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus
    • G07F7/08—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means
    • G07F7/0866—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means by active credit-cards adapted therefor
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F17/00—Coin-freed apparatus for hiring articles; Coin-freed facilities or services
    • G07F17/0014—Coin-freed apparatus for hiring articles; Coin-freed facilities or services for vending, access and use of specific services not covered anywhere else in G07F17/00
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F7/00—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus
    • G07F7/08—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means
    • G07F7/0873—Details of the card reader

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
  • Prepayment Telephone Systems (AREA)
  • Meter Arrangements (AREA)

Abstract

본 발명은 카드형 공중전화기에 사용되는 선불 IC카드가 금액을 기록할 때에 카드 내부에 구성된 비교기에서 공중전화기로부터 입력되는 금액과 카드 내부의 메모리에 기록된 금액을 비교하여 입력된 금액이 카드내에 기록된 금액보다 작거나 같은 금액일 때에만 기록이 가능하게 함으로써, 금액을 증가시키는 방향의 금액 변조를 방지하도록 구현한 선불 IC카드에 관한 기술이다.When the prepaid IC card used in the card type public telephone records the amount, the amount inputted from the public telephone in the comparator configured inside the card is compared with the amount recorded in the memory in the card, and the amount entered is recorded in the card. It is a technology related to a prepaid IC card implemented to prevent a price change in the direction of increasing the amount by enabling recording only when the amount is less than or equal to the amount.

Description

선불 IC카드 및 그 금액 변조 방지 방법Prepaid IC card and how to avoid tampering with it

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제 1 도는 본 발명의 선불 IC카드의 구성과 공중전화기와의 연결을 도시한 블럭도, 제 2 도는 본 발명의 선불 IC카드에 금액을 기록할 때의 동작흐름도.1 is a block diagram showing the configuration of a prepaid IC card of the present invention and a connection with a public telephone, and FIG. 2 is a flowchart of operation when recording an amount of money on a prepaid IC card of the present invention.

Claims (2)

공중전화기 본체와의 통신을 담당하는 입출력부(10)와, 상기 입출력부(10)로부터 전달된 데이타를 수신하여 카드 내부의 동작을 컨트롤하는 제어부(20)와, 상기 입출력부(10)를 통해 입력된 데이타인 기록하려는 금액과 카드의 메모리에 기록되어 있는 금액의 크기를 비교하는 비교기(30)와, 금액 및 다수의 정보를 저장하고 있는 메모리(40)를 포함하고 있는 것을 특징으로 하는 선불 IC카드.The input / output unit 10 responsible for communication with the public telephone main body, a control unit 20 for receiving data transmitted from the input / output unit 10 to control the operation of the card, and the input / output unit 10. A prepaid IC comprising: a comparator 30 for comparing the amount of money to be written which is input data with the amount of money recorded in the memory of the card, and a memory 40 storing the amount of money and a plurality of information. Card. 선불 IC카드(60)가 공중전화기(50)에 연결되어 동작이 시작된 후, 공중전화기(50)에서 선불 IC카드(60)로 명령어와 데이타를 전송하는 제 1 단계와, 공중전화기(50)로부터 입력된 명령어와 데이타를 입출력부(10)에 저장하는 제 2 단계와, 상기 입출력부(10)에 저정된 명령어를 제어부(20)에 해석한 후, 공정전화기(50)에서 보내온 명령어가 금액을 선불 IC카드(50)의 메모리(40)에 기록하라는 명령이면 제어부(20)에서는 입출력부(10)에 저장된 데이타와 메모리(40)에 저장된 금액을 비교기(30)로 이동시켜서 두 금액을 비교하고, 공중전화기(50)를 통해 입력된 명령어가 금액 기록 명령어가 아닌 경우에는 명령어의 종류에 따라 정의된 동작을 수행하는 제 3 단계와, 상기 제 3 단계에서 비교한 결과, 기록할 금액이 메모리(40)에 저장된 금액보다 작거나 같은 경우에는 공중전화기7(50)로부터 보내온 금액을 메모리(40)에 기록하고, 기록할 금액이 메모리(40)에 저장된 금액보다 큰 경우에는 공중전화기(50)가 보내온 금액을 메모리(40)에 기록하지 않고 상기 제 1 단계로 동작을 이어주는 제 4 단계로 이루어지는 것을 특징으로 하는 선불 IC카드의 금액 변조 방지 방법.After the prepaid IC card 60 is connected to the public telephone 50 and started to operate, the first step of transmitting commands and data from the public telephone 50 to the prepaid IC card 60 and from the public telephone 50. The second step of storing the input command and data in the input and output unit 10, and after interpreting the command stored in the input and output unit 10 to the control unit 20, the command sent from the process telephone 50 to calculate the amount If the instruction to write to the memory 40 of the prepaid IC card 50, the control unit 20 compares the two amounts by moving the data stored in the input and output unit 10 and the amount stored in the memory 40 to the comparator 30 and If the command inputted through the public telephone 50 is not an amount recording command, the third step of performing an operation defined according to the type of the command is compared with the third step. If less than or equal to the amount stored in 40) The amount of money sent from the firearms 7 (50) is recorded in the memory 40, and if the amount to be recorded is larger than the amount stored in the memory 40, the amount not sent by the public telephone 50 is not recorded in the memory 40. A method of preventing tampering with a prepaid IC card, comprising the fourth step of continuing the operation to the first step. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930011833A 1993-06-28 1993-06-28 Prepaid IC card and how to avoid tampering with it Withdrawn KR950001556A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
KR1019930011833A KR950001556A (en) 1993-06-28 1993-06-28 Prepaid IC card and how to avoid tampering with it
FR9407883A FR2708363B1 (en) 1993-06-28 1994-06-27 Prepaid integrated circuit card and method for ordering the same.
DE4422682A DE4422682A1 (en) 1993-06-28 1994-06-28 Prepaid card with integrated circuit and method for its control
JP6146436A JPH07147613A (en) 1993-06-28 1994-06-28 Prepaid integrated circuit card and control method thereof
KR2019950018713U KR950008425Y1 (en) 1993-06-28 1995-07-26 Prepaid IC Card

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930011833A KR950001556A (en) 1993-06-28 1993-06-28 Prepaid IC card and how to avoid tampering with it

Publications (1)

Publication Number Publication Date
KR950001556A true KR950001556A (en) 1995-01-03

Family

ID=19358127

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019930011833A Withdrawn KR950001556A (en) 1993-06-28 1993-06-28 Prepaid IC card and how to avoid tampering with it

Country Status (4)

Country Link
JP (1) JPH07147613A (en)
KR (1) KR950001556A (en)
DE (1) DE4422682A1 (en)
FR (1) FR2708363B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100302932B1 (en) * 1997-06-09 2001-12-12 가나이 쓰도무 Apparatus and method for capturing appliance information

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19528297A1 (en) 1995-08-02 1997-02-06 Bayer Ag Unit of data storage card and read / write device
US6188752B1 (en) 1996-11-12 2001-02-13 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for providing prepaid telecommunications services

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2211050A (en) * 1987-10-15 1989-06-21 Gen Electric Co Plc Telephone system
FR2636154B1 (en) * 1988-09-08 1991-04-19 Regie Autonome Transports NON-CONTACT INFRARED PEARING PROCESS BY MEMORY CARD, PARTICULARLY FOR MEANS OF TRANSPORT, AND PEARING DEVICE USING SUCH A METHOD
FR2641634B1 (en) * 1989-01-11 1991-06-28 Gemplus Card Int RECHARGEABLE PREPAID MEMORY CARD
FR2642205B1 (en) * 1989-01-23 1991-03-29 Remery Patrick COUNTING AND COUNTING PROCESS, PARTICULARLY FOR ELECTRONIC PAYMENT, USING AN EEPROM MEMORY
DE4230866B4 (en) * 1992-09-16 2004-02-05 Venture Engineering Managementgesellschaft Mbh Data exchange system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100302932B1 (en) * 1997-06-09 2001-12-12 가나이 쓰도무 Apparatus and method for capturing appliance information

Also Published As

Publication number Publication date
JPH07147613A (en) 1995-06-06
DE4422682A1 (en) 1995-01-05
FR2708363A1 (en) 1995-02-03
FR2708363B1 (en) 1998-05-15

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