Registers – Records – Conductive
Patent
1988-02-10
1990-01-02
Pitts, Harold I.
Registers
Records
Conductive
235487, G06K 1906
Patent
active
048915068
ABSTRACT:
A portable electronic device, also known as an IC card, according to the invention has a control element and a data memory. The memory area of the data memory is divided into a directory area and a user area. The user area is divided into a plurality of data-storing areas. Groups of area-defining data items are stored in the directory area, each data item defining one data-storing area of the user area. In addition, a group of data items defining the groups of area-defining data items is also stored in the directory area. The control element selects one of the groups as the group defining the data-storing area of the user area which can be used, in accordance with one of the data items of the group, which has been designated by the data supplied from an external device. The control element accesses those data-storing areas of the user area which are defined by the selected group. Hence, data can be separately written into, or read from, these, different accessed areas so that the IC card may be used for a variety of purposes.
REFERENCES:
patent: 4734568 (1988-03-01), Watanabe
Kabushiki Kaisha Toshiba
Pitts Harold I.
LandOfFree
Multi-use portable electronic device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Multi-use portable electronic device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multi-use portable electronic device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1384924