Methods And Systems For Managing Data Stored On A Contactless Flash Memory Device

• US 20080104098A1
• Filed: 10/31/2006
• Published: 05/01/2008
• Est. Priority Date: 10/31/2006
• Status: Active Grant

• Current Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Original Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Inventors: Dekhil, Mohamed, Li, Jun, Rathbone, Thomas, Ghosh, Riddhiman
• Granted Patent: US 7,895,245 B2
• Time in Patent Office: Days
• US Class Current: 707/102
• 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 20/3576 Multiple memory zones on card
• CPC Class Codes: G07F 7/1008 Active credit-cards provided with means to personalise their use, e.g. with PIN-introduction/comparison system
• CPC Class Codes: G11C 16/10 Programming or data input circuits

Abstract

Methods, systems and machine readable medium storing a machine readable program for managing data stored on a contactless flash memory device are disclosed. A compiled version of a hierarchical data model defined using a high level data structure definition language is provided at a host unit. The host unit is operable to run on a host platform. The compiled version of the hierarchical data model is compiled for the host platform. A first representation of a first hierarchical data structure is received from a contactless flash memory device at the host unit via a contactless communication channel. The first hierarchical data structure is a first instantiation of the hierarchical data model. A second representation of the first hierarchical data structure is generated in accordance with the compiled hierarchical data model at the host unit.

Claims

1. A method of managing data stored on a contactless flash memory device, the method comprising:

providing a compiled version of a hierarchical data model defined using a high level data structure definition language at a host unit, the host unit being operable to run on a host platform and the compiled version of the hierarchical data model being compiled for the host platform;

receiving a first representation of a first hierarchical data structure from a contactless flash memory device at the host unit via a contactless communication channel, the first hierarchical data structure being a first instantiation of the hierarchical data model; and

generating a second representation of the first hierarchical data structure in accordance with the compiled hierarchical data model at the host unit.

2. The method of claim 1, further comprising:

providing a data demarshaller at the host unit, the data demarshaller being a component of the compiled version of the hierarchical data model; and

deserializing the first representation of the first hierarchical data structure having a binary data byte sequence format using the data demarshaller thereby generating the second representation of the first hierarchical data structure having a hierarchical data format at the host unit

3. The method of claim 1, further comprising:

providing a data marshaller at the host unit, the data marshaller being a component of the compiled version of the hierarchical data model;

generating a second hierarchical data structure at the host unit, the second hierarchical data structure being a second instantiation of the hierarchical data model; and

serializing a first representation of a second hierarchical data structure having a hierarchical data format using the data marshaller thereby generating a second representation of the second hierarchical data structure having a binary data byte sequence format at the host unit for storage on the contactless flash memory device,

4. The method of claim 1, wherein providing a compiled version of the hierarchical data model defined using a high level data structure definition language at the host unit comprises providing a hierarchical data model including a data field having an access control attribute, the method further comprising:

providing an access control enforcer in accordance with the defined access control attribute at the host unit, the access control enforcer being a component of the compiled version of the hierarchical data model; and

controlling access to a value of the data field within the first hierarchical data structure at the host unit using the access control enforcer.

5. The method of claim 1, wherein providing a compiled version of the hierarchical data model defined using a high level data structure definition language at the host unit comprises providing a hierarchical data model including first and second data fields, the second data field being defined to store a digital signature of a value of the first data field.

6. The method of claim 1, wherein providing a compiled version of the hierarchical data model defined using a high level data structure definition language at the host unit comprises providing a hierarchical data model including first and second data fields defined as having first and second data types, respectively, the method further comprising:

receiving a first data directory containing a first data value of the first data type from the contactless flash memory device at the host unit via the contactless communication channel;

providing access to the first data value of the first data type at the host unit while receiving a second data directory containing a second data value of the second data type from the contactless flash memory device at the host unit via the contactless communication channel.

7. The method of claim 1, wherein providing a compiled version of the hierarchical data model defined using a high level data structure definition language at the host unit comprises providing a hierarchical data model including first and second data fields defined as having first and second data types, respectively, the method further comprising:

receiving a first data directory containing a first data value of the first data type from the contactless flash memory device at the host unit via the contactless communication channel;

receiving a second data directory containing a second data value of the second data type from the contactless flash memory device at the host unit via the contactless communication channel responsive to a request for the second data directory issued by the host unit to the contactless flash memory device.

8. The method of claim 1 further comprising:

storing a first data directory containing a first data set generated by a first flash memory application in the contactless flash memory device; and

storing a second data directory containing a second data set generated by a second flash memory application in the contactless flash memory device.

9. The method of claim 1, wherein providing a compiled version of a hierarchical data model defined using a high level data structure definition language at a host unit comprises:

receiving a hierarchical data model defined using the high level data structure definition language at the host unit; and

compiling the hierarchical data model from the high level data structure definition language for the host platform at the host unit.

10. A machine readable medium storing a machine executable program for managing data stored on a contactless flash memory device comprising:

machine readable code for providing a compiled version of a hierarchical data model defined using a high level data structure definition language at a host unit, the host unit being operable to run on a host platform and the compiled version of the hierarchical data model being compiled for the host platform;

machine readable code for receiving a first representation of a hierarchical data structure from a contactless flash memory device at the host unit via a contactless communication channel, the hierarchical data structure being a first instantiation of the hierarchical data model; and

machine readable code for generating a second representation of the hierarchical data structure in accordance with the compiled hierarchical data model at the host unit.

11. The machine readable medium of claim 10, further comprising:

machine readable code for providing a data demarshaller at the host unit, the data demarshaller being a component of the compiled version of the hierarchical data model; and

machine readable code for deserializing the first representation of the first hierarchical data structure having a binary data byte sequence format using the data demarshaller thereby generating the second representation of the first hierarchical data structure having a hierarchical data format at the host unit

12. The machine readable medium of claim 10, further comprising:

machine readable code for providing a data marshaller at the host unit, the data marshaller being a component of the compiled version of the hierarchical data model;

machine readable code for generating a second hierarchical data structure at the host unit, the second hierarchical data structure being a second instantiation of the hierarchical data model; and

machine readable code for serializing a first representation of a second hierarchical data structure having a hierarchical data format using the data marshaller thereby generating a second representation of the second hierarchical data structure having a binary data byte sequence format at the host unit for storage on the contactless flash memory device.

13. The machine readable medium of claim 10, wherein, the machine readable code for providing a compiled version of the hierarchical data model defined using a high level data structure definition language at the host unit comprises machine readable code for providing a hierarchical data model including a data field having an access control attribute, the machine readable medium further comprising:

machine readable code for providing an access control enforcer in accordance with the defined access control attribute at the host unit, the access control enforcer being a component of the compiled version of the hierarchical data model; and

machine readable code for controlling access to a value of the data field within the first hierarchical data structure at the host unit using the access control enforcer.

14. The machine readable medium of claim 10, wherein the machine readable code for providing a compiled version of the hierarchical data model defined using a high level data structure definition language at the host unit comprises machine readable code for providing a hierarchical data model including first and second data fields, the second data field being defined to store a digital signature of a value of the first data field.

15. The machine readable medium of claim 10, wherein the machine readable code for providing a compiled version of the hierarchical data model defined using a high level data structure definition language at the host unit comprises machine readable code for providing a hierarchical data model including first and second data fields defined as having first and second data types, respectively, the machine readable code further comprising:

machine readable code for receiving a first data directory containing a first data value of the first data type from the contactless flash memory device at the host unit via the contactless communication channel; and

machine readable code for providing access to the first data value of the first data type at the host unit while receiving a second data directory containing a second data value of the second data type from the contactless flash memory device at the host unit via the contactless communication channel.

16. The machine readable medium of claim 10, wherein the machine readable code for providing a compiled version of the hierarchical data model defined using a high level data structure definition language at the host unit comprises machine readable code for providing a hierarchical data model including first and second data fields defined as having first and second data types, respectively, the machine readable medium further comprising:

machine readable code for receiving a first data directory containing a first data value of the first data type from the contactless flash memory device at the host unit via the contactless communication channel;

machine readable code for receiving a second data directory containing a second data value of the second data type from the contactless flash memory device at the host unit via the contactless communication channel responsive to a request for the second data directory issued by the host unit to the contactless flash memory device.

17. The machine readable medium of claim 10, further comprising:

machine readable code for storing a first data directory containing a first data set generated by a first flash memory application in the contactless flash memory device; and

machine readable code for storing a second data directory containing a second data set generated by a second flash memory application in the contactless flash memory device.

18. The machine readable medium of claim 10, wherein the machine readable code for providing a compiled version of a hierarchical data model defined using a high level data structure definition language at a host unit comprises:

machine readable code for receiving a hierarchical data model defined using the high level data structure definition language at the host unit; and

machine readable code for compiling the hierarchical data model from the high level data structure definition language for the host platform at the host unit.

19. A method of managing a data file for storage in multiple contactless flash memory devices, the method comprising:

generating a data file at the host unit;

dividing the data file into first and second sub data files at the host unit;

storing the first data file at a first contactless flash memory device via a first contactless communication channel established between the host unit and the first contactless flash memory device;

storing the second data file at a second contactless flash memory device via a second contactless communication channel established between the host unit and the second contactless flash memory device.

20. The method of claim 19, further comprising:

creating a first link table file associated with the data file defining a first link to the second contactless flash memory device at the host unit;

storing the first link table file at the first contactless flash memory device via the first contactless communication channel;

creating a second link table file associated with the data file defining a link from the first contactless flash memory device at the host unit; and

storing the second link table file at the second contactless flash memory device via the second contactless communication channel.

21. The method of claim 20, further comprising:

downloading a first data content of the first contactless flash memory device at the host unit via the first contactless communication channel, the first data content including the first sub data file and the first link table file;

identifying the first link to the second contactless flash memory defined in the first link table file; and

downloading a second data content of the second contactless flash memory device at the host unit via the second contactless communication channel based on the identification of the first link, the second data content including the second sub data file.

22. The method of claim 20, further comprising:

downloading a first data content of the second contactless flash memory device at the host unit via the second contactless communication channel, the first data content including the second sub data file and the second link table file;

identifying the second link from the first contactless flash memory defined in the second link table file; and

downloading a second data content of the first contactless flash memory device at the host unit via the first contactless communication channel based on the identification of the second link, the second data content including the first sub data file.

23. A machine readable medium storing a machine executable program for managing a data file for storage in multiple contactless flash memory devices, comprising:

machine readable code for generating a data file at the host unit;

machine readable code for dividing the data file into first and second sub data files at the host unit;

machine readable code for storing the first data file at a first contactless flash memory device via a first contactless communication channel established between the host unit and the first contactless flash memory device;

machine readable code for storing the second data file at a second contactless flash memory device via a second contactless communication channel established between the host unit and the second contactless flash memory device.

24. The machine readable medium of claim 23, further comprising:

machine readable code for creating a first link table file associated with the data file defining a first link to the second contactless flash memory device at the host unit;

machine readable code for storing the first link table file at the first contactless flash memory device via the first contactless communication channel;

machine readable code for creating a second link table file associated with the data file defining a link from the first contactless flash memory device at the host unit; and

machine readable code for storing the second link table file at the second contactless flash memory device via the second contactless communication channel.

25. The machine readable medium of claim 24, further comprising:

machine readable code for downloading a first data content of the first contactless flash memory device at the host unit via the first contactless communication channel, the first data content including the first sub data file and the first link table file;

machine readable code for identifying the first link to the second contactless flash memory defined in the first link table file; and

machine readable code for downloading a second data content of the second contactless flash memory device at the host unit via the second contactless communication channel based on the identification of the first link, the second data content including the second sub data file.

26. The machine readable medium of claim 24, further comprising:

machine readable code for downloading a first data content of the second contactless flash memory device at the host unit via the second contactless communication channel, the first data content including the second sub data file and the second link table file;

machine readable code for identifying the second link from the first contactless flash memory defined in the second link table file; and

machine readable code for downloading a second data content of the first contactless flash memory device at the host unit via the first contactless communication channel based on the identification of the second link, the second data content including the first sub data file.