Portable electronic device and control method of portable electronic device
First Claim
1. A portable electronic device which is operated according to a command supplied from an external device, comprising:
- a communicating portion which communicates with the external device,a first storage portion which stores files into which a plurality of data strings are stored,a second storage portion which stores access conditions set for respective data strings in the files stored in the first storage portion,a determining portion which determines whether it is possible to perform a command process requested by a command for a data string specified by the command received from the external device via the communicating portion based on the access condition set for each data string stored in the second storage portion, anda control portion which performs the command process when the determining portion determines that it is possible to perform the command process for the data string specified by the command.
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Accused Products
Abstract
An IC card used as a portable electronic device includes a CPU which performs various processes by executing control programs, a memory which stores data files, and a communicating portion which communicates with an external device. When receiving a command from the external device via the communicating portion, the CPU of the IC card determines whether or not a process corresponding to the command for the data string specified by the command received from the external device can be performed based on one of access conditions set for the respective data strings in the files stored in the memory and performs a command process when it is determined in the above determining process that the command process for the data string specified by the command can be performed.
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Citations
12 Claims
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1. A portable electronic device which is operated according to a command supplied from an external device, comprising:
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a communicating portion which communicates with the external device, a first storage portion which stores files into which a plurality of data strings are stored, a second storage portion which stores access conditions set for respective data strings in the files stored in the first storage portion, a determining portion which determines whether it is possible to perform a command process requested by a command for a data string specified by the command received from the external device via the communicating portion based on the access condition set for each data string stored in the second storage portion, and a control portion which performs the command process when the determining portion determines that it is possible to perform the command process for the data string specified by the command. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A control method used for a portable electronic device having a memory to store data and operated according to a command supplied from an external device, comprising:
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determining whether it is possible to perform a command process requested by a command for a data string specified by the command received from the external device based on one of access conditions set for respective data strings of files stored in the memory when the command is received from the external device, and performing the command process when it is determined in the determining process that it is possible to perform the command process requested by the command for the data string specified by the command.
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Specification