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Portable electronic device and control method of portable electronic device

A technology of portable electronic devices and control methods, applied in the direction of electrical digital data processing, record carriers used by machines, coinless or similar appliances, etc., capable of solving problems such as processing time constraints

Inactive Publication Date: 2007-04-11
KK TOSHIBA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the record-based command, since it is necessary to specify the data to be processed for each record, even when specifying a plurality of records in the EF as the processing target , you must also use multiple record-based commands to specify each record as the processing object
[0007] In particular, in portable electronic devices such as IC cards, the processing time is often limited in the form of operation.

Method used

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  • Portable electronic device and control method of portable electronic device
  • Portable electronic device and control method of portable electronic device
  • Portable electronic device and control method of portable electronic device

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Embodiment Construction

[0021] Hereinafter, a preferred mode for carrying out the present invention will be described with reference to the drawings.

[0022] In addition, in the embodiments described below, it is assumed that an IC card is assumed as a portable electronic device. In addition, in this embodiment, the same can be applied to electronic devices such as IC cards (SIM cards) and UIM cards to be installed in the mobile phone.

[0023] FIG. 1 schematically shows the hardware configuration of an IC card 1 as a portable electronic device of this embodiment.

[0024] As shown in FIG. 1, the IC card 1 has: a CPU 11, a ROM 12, a RAM 13, a communication unit (UART) 14, a coprocessor 15, a non-volatile memory 16, and the like.

[0025] The CPU 11, the ROM 12, the RAM 13, the communication unit 14, the coprocessor 15, and the non-volatile memory 16 described above can be constituted by a module Ca integrally formed with an IC chip or the like. The module Ca may be buried in the housing C forming the IC...

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PUM

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Abstract

An IC card 1 has a memory 16 storing record files having management information and record data. When receiving a record-based command which specifies a record file stored in the memory 16, the IC card processes data stored in the file for each of the specified records. When receiving a binary-based command which specifies a record file, the IC card processes, as binary data, data in which the record data in the respective records stored in the file or the management information and the record data in the respective records are combined in ascending order or descending order.

Description

Technical field [0001] The present invention relates to a portable electronic device such as an IC card that has control elements such as a non-volatile memory capable of writing or rewriting data and a CPU, and executes processing corresponding to a command input from the outside. Background technique [0002] Conventionally, as a portable electronic device, for example, there is an IC card provided in a housing composed of an IC module or a plastic board having functions such as a memory or a CPU. In such an IC card, data can be written to or read from the nonvolatile memory which is rewritable in response to a command from the outside. For example, in ISO7816, which is the standard specification for IC cards, as the file data structure of data to be stored in the nonvolatile memory of the IC card, a transparent structure EF (elementary file) and a recording structure EF have been defined. [0003] In the above-mentioned transparent structure EF, unstructured data (binary data)...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K19/07G06K7/00
CPCG06Q20/35765G06Q20/341G07F7/1008G06Q20/3576G06F3/06G06F3/00
Inventor 石桥则夫
Owner KK TOSHIBA