IC card with a stored data change inhibition function

Boots – shoes – and leggings

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

3642384, 3642531, 3642544, 3642568, 364260, 3642603, 3642686, 3642865, 3642273, 3642399, 364DIG2, 235380, 395775, G06F 302, G06F 906, G06F 1214, G06F 1316

Patent

active

051485435

ABSTRACT:
A nonvolatile memory has an area defining information area for storing area defining information corresponding to user data write areas. Each area defining information contains identification information representing whether a corresponding user data write area is an area in which stored data can be changed in accordance with a command from a keyboard. When a command for changing stored data in one of the user data write areas is supplied from the keyboard, a control element identifies in accordance with the identification information contained in the area defining information corresponding to the user data write area designated by the keyboard whether the designated user data write area is an area in which stored data can be changed. If the designated user data storage area is an area from which stored data cannot be changed, the control element inhibits stored data change processing for the designated user data write area.

REFERENCES:
patent: 4493031 (1985-01-01), Silverio
patent: 4628479 (1986-12-01), Borg et al.
patent: 5016219 (1991-05-01), Nolan et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

IC card with a stored data change inhibition function does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with IC card with a stored data change inhibition function, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and IC card with a stored data change inhibition function will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-743654

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.