Claims
- 1. A method of verifying a credit card use, the credit card belonging to a credit card bearer, using a central computer and a terminal having a display connected thereto, comprising the steps of:
- storing a set of security codes corresponding to a set of account numbers of credit cards in the central computer;
- transmitting an account number from the terminal to the central computer;
- transmitting a password assigned to the operator with the account number into the central computer to ensure an authorized operation of the computer; and
- displaying a security code corresponding to the transmitted account number on the display of the terminal, whereby the operator may compare the security code against a security code provided by the credit card bearer.
- 2. A method of verifying a credit card use employing a central computer and a terminal which is connected thereto and has a display, where the credit card belongs to a credit card bearer, and the central computer holds a set of account numbers of credit cards and a set of corresponding security codes comprising the steps of:
- inputting an account number of a credit card into the central computer to access a corresponding security code for display on the display;
- entering a password assigned to an operator into the central computer at the time of the inputting of the account number to prevent an unauthorized operation of the computer; and
- comparing the displayed security code against a security code provided by the credit card bearer to verify the authenticity of the credit card bearer.
- 3. A method of verifying an authenticity of a security card bearer in a computerized security system having a central computer and a terminal having a display connected thereto comprising the steps of:
- storing a set of security codes corresponding to a set of account data of security cards in the central computer;
- transmitting a piece of account data of a security card to the central computer;
- transmitting an identifier assigned to a security personnel into the central computer at the time the account data of the security card is input to ensure an authorized operation of the security system;
- transmitting a security code corresponding to the account data to the terminal; and
- displaying the security code on the display, whereby the security code may be compared against a security code furnished by the security card bearer for verification of the authenticity of the security card bearer.
- 4. A method of verifying an authencity of a security card bearer in a computerized security system having a central computer, the central computer having a set of security codes corresponding to a set of card data of security cards, and a terminal having a display attached to the central computer comprising the steps of:
- inputting a piece of card data of a security card into the central computer;
- entering an identifier assigned to a security personnel into the central computer when the piece of card data is input to ensure that the security personnel is an authorized personnel; and
- displaying a security code corresponding to the card data on the display, whereby the security personnel may compare the displayed security code against a security code provided by the security card bearer to verify the authenticity of the security card bearer.
Parent Case Info
This is a divisional of application Ser. No. 08/108,165 filed on Aug. 16, 1993. The present application is a divisional application of application Ser. No. 08/108,165, filed Aug. 16, 1993.
US Referenced Citations (2)
Foreign Referenced Citations (1)
Number |
Date |
Country |
0203572 |
Nov 1983 |
JPX |
Divisions (1)
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Number |
Date |
Country |
Parent |
108165 |
Aug 1993 |
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