Method and apparatus for sharing data files among runtime environment applets in an integrated circuit card

• US 20050081187A1
• Filed: 10/19/2004
• Published: 04/14/2005
• Est. Priority Date: 05/11/1999
• Status: Active Grant

• Current Assignee: Microsoft Technology Licensing LLC (Microsoft Corporation)
• Original Assignee: Microsoft Corporation
• Inventors: Guthery, Scott B., Milstein, David, Odinak, Gilad, Perlin, Eric C., Deo, Vinay
• Granted Patent: US 7,454,741 B2
• Time in Patent Office: Days
• US Class Current: 717/101
• CPC Class Codes: G06Q 20/341 Active cards, i.e. cards including their own processing means, e.g. including an IC or chip
• CPC Class Codes: G06Q 20/3552 Downloading or loading of personalisation data
• CPC Class Codes: G06Q 20/3576 Multiple memory zones on card
• CPC Class Codes: G07F 7/00 Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus
• CPC Class Codes: G07F 7/1008 Active credit-cards provided with means to personalise their use, e.g. with PIN-introduction/comparison system

Abstract

An integrated circuit card includes a storage device to store one or more code files and one or more data files, and control logic. The control logic implements an ICC runtime environment that executes an applet in response to a command identifying both a code file and a data file received from a host system.

Claims

1. One or more computer readable media comprising computer executable instructions that, when executed, direct an integrated circuit card (ICC) to:

receive a command to execute one or more code files and one or more data files to execute a runtime environment applet in the ICC, wherein a data file can be invoked with different code files to implement different runtime environment applets;

access a file system to retrieve and load an identified code file and an identified data file; and

execute the identified code file through completion to perform operations in the identified data file.

2. One or more computer readable media as recited in claim 1, further comprising computer executable instructions that, when executed, direct the ICC to receive the command to execute the one or more code files and the one or more data files from a host system in response to the ICC being inserted into a card reader.

3. One or more computer readable media as recited in claim 1, further comprising computer executable instructions that, when executed, direct the ICC to:

receive a second command to execute the identified code file with a different identified data file;

access the file system to retrieve and load the different identified data file; and

execute the identified code file through completion to perform operations in the different identified data file.

4. One or more computer readable media as recited in claim 1, further comprising computer executable instructions that, when executed, direct the ICC to:

receive a second command to execute a different identified code file with the identified data file;

access and retrieve the different identified code file; and

execute the different identified code file through completion to perform operations in the identified data file.

5. An integrated circuit card (ICC), comprising:

means to receive a command to execute one or more code files and one or more data files to execute a runtime environment applet in the ICC, wherein a data file can be invoked with different code files to implement different runtime environment applets;

means to access a file system to retrieve and load an identified code file and an identified data file; and

means to execute the identified code file through completion to perform operations in the identified data file.

6. An integrated circuit card as recited in claim 5, further comprising means to initiate receiving the command to execute the one or more code files and the one or more data files from a host system in response to the ICC being inserted into a card reader.

7. An integrated circuit card as recited in claim 5, further comprising:

means to receive a second command to execute the identified code file with a different identified data file;

means to access the file system to retrieve and load the different identified data file; and

means to execute the identified code file through completion to perform operations in the different identified data file.

8. An integrated circuit card as recited in claim 5, further comprising:

means to receive a second command to execute a different identified code file with the identified data file;

means to access and retrieve the different identified code file; and

means to execute the different identified code file through completion to perform operations in the identified data file called for by the computer executable instructions.

9. One or more computer readable media comprising computer executable instructions that, when executed, direct an integrated circuit card (ICC) to:

receive a command to execute one or more code files and one or more data files to execute a runtime environment applet in the ICC, wherein a code file can be invoked with multiple data files to implement different runtime environment applets;

access a file system to retrieve and load an identified code file and an identified data file; and

execute the identified code file through completion to perform operations in the identified data file.

10. One or more computer readable media as recited in claim 9, further comprising computer executable instructions that, when executed, direct the ICC to receive the command to execute the one or more code files and the one or more data files from a host system in response to the ICC being inserted into a card reader.

11. One or more computer readable media as recited in claim 9, further comprising computer executable instructions that, when executed, direct the ICC to:

receive a second command to execute the identified code file with a different identified data file;

access the file system to retrieve and load the different identified data file; and

execute the identified code file through completion to perform operations in the different identified data file.

12. One or more computer readable media as recited in claim 9, further comprising computer executable instructions that, when executed, direct the ICC to:

receive a second command to execute a different identified code file with the identified data file;

access and retrieve the different identified code file; and

execute the different identified code file through completion to perform operations in the identified data file.

13. An integrated circuit card (ICC) comprising:

means to receive a command to execute one or more code files and one or more data files to execute a runtime environment applet in the ICC, wherein a code file can be invoked with multiple data files to implement different runtime environment applets;

means to access a file system to retrieve and load an identified code file and an identified data file; and

means to execute the identified code file through completion to perform operations in the identified data file.

14. An integrated circuit card as recited in claim 13, further comprising means to receive the command to execute the one or more code files and the one or more data files from a host system in response to the ICC being inserted into a card reader.

15. An integrated circuit card as recited in claim 13, further comprising:

means to receive a second command to execute the identified code file with a different identified data file;

means to access the file system to retrieve and load the different identified data file; and

means to execute the identified code file through completion to perform operations in the different identified data file.

16. An integrated circuit card as recited in claim 13, further comprising:

means to receive a second command to execute a different identified code file with the identified data file;

means to access and retrieve the different identified code file; and

means to execute the different identified code file through completion to perform operations in the identified data file.