Portable electronic apparatus for writing and reading data to and from an external device and performing data memory allocation
First Claim
1. A portable electronic apparatus for selectively inputting and outputting data to and from an external device, said apparatus comprising:
- memory means for storing said data, said memory means comprising;
a first group comprising at least one data area for storing a first portion of said data;
a second group comprising at least one data area for storing a second portion of said data, said data area of said second group being different from said data area of said first group;
a directory name storage area for storing directory characters, said directory characters being provided by said external device and identifying said first and second groups; and
an area definition storage data area for storing area definition data, said area definition data comprising area identification characters, said area identification characters being provided by said external device and indicating to which of said groups said data areas belong; and
control means for interacting with said external device and performing data transactions, said control means comprising;
means for receiving, from said external device, said data and signals, said signals including said directory characters and said area identification characters, and for interpreting said signals to provide a function signal;
means for selecting said first group and said second group to write and read said data to and from said data areas of said first group and said second group in accordance with said function signal, said selecting means being capable of accessing said data area of said first group by way of said first group and said second group and said data area of said second group by way of said first group and said second group; and
means for encoding/decoding said data when said data is being written and read to and from said data areas of said first group and said second group.
1 Assignment
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Accused Products
Abstract
A memory section of an IC card is divided into a plurality of areas. Identification data is induvidually assigned to each area. The IC card has a first means for selecting a physically identical area based on at least two identification data. The IC card further has a second means for setting different access enable/disable conditions when an access is made by the first means based on the two identification data. The IC card further has a third means for setting the same access enable/disable condition. The IC card further has a fourth means for selecting whether the second or third means is used.
34 Citations
12 Claims
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1. A portable electronic apparatus for selectively inputting and outputting data to and from an external device, said apparatus comprising:
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memory means for storing said data, said memory means comprising; a first group comprising at least one data area for storing a first portion of said data; a second group comprising at least one data area for storing a second portion of said data, said data area of said second group being different from said data area of said first group; a directory name storage area for storing directory characters, said directory characters being provided by said external device and identifying said first and second groups; and an area definition storage data area for storing area definition data, said area definition data comprising area identification characters, said area identification characters being provided by said external device and indicating to which of said groups said data areas belong; and control means for interacting with said external device and performing data transactions, said control means comprising; means for receiving, from said external device, said data and signals, said signals including said directory characters and said area identification characters, and for interpreting said signals to provide a function signal; means for selecting said first group and said second group to write and read said data to and from said data areas of said first group and said second group in accordance with said function signal, said selecting means being capable of accessing said data area of said first group by way of said first group and said second group and said data area of said second group by way of said first group and said second group; and means for encoding/decoding said data when said data is being written and read to and from said data areas of said first group and said second group. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification