IC CARD, DATA CONTROL METHOD AND PROGRAM
First Claim
Patent Images
1. An IC card comprising:
- a recording unit to record display request data for requesting display on a display unit and control data for controlling display on the display unit onto card memory in response to a request from an external device; and
a verification unit to verify data consistency by comparing predetermined control commands contained in the display request data and the control data recorded on the card memory.
1 Assignment
0 Petitions
Accused Products
Abstract
There is provided an IC card including a recording unit (card CPU) to record display request data for requesting display on a display unit and control data for controlling display on the display unit onto card memory in response to a request from an external device, and a verification unit (display CPU) to verify data consistency by comparing predetermined control commands contained in the display request data and the control data recorded on the card memory.
50 Citations
9 Claims
-
1. An IC card comprising:
-
a recording unit to record display request data for requesting display on a display unit and control data for controlling display on the display unit onto card memory in response to a request from an external device; and a verification unit to verify data consistency by comparing predetermined control commands contained in the display request data and the control data recorded on the card memory. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A data control method comprising the steps of:
-
recording display request data for requesting display on a display unit and control data for controlling display on the display unit onto card memory in response to a request from an external device; verifying data consistency by comparing predetermined control commands contained in the display request data and the control data recorded on the card memory; and displaying the display request data on the display unit and updating the control data according to a result of the verification.
-
-
9. A program causing a computer to function as an IC card comprising:
-
a recording unit to record display request data for requesting display on a display unit and control data for controlling display on the display unit onto card memory in response to a request from an external device; a verification unit to verify data consistency by comparing predetermined control commands contained in the display request data and the control data recorded on the card memory; and a display control unit to display the display request data on the display unit and update the control data according to a verification result by the verification unit.
-
Specification