Access management method, communications apparatus, and monitor and control system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Dec 16, 2003
Grant Date -
N/A
app pub date -
Sep 13, 1999
filing date -
Sep 14, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention provides to an access management method and the communications apparatus capable of limiting an access from a monitor and control apparatus to a communications apparatus. In each of transmission apparatuses N1 to Nm, identification information of a monitor and control apparatus requesting an access is first obtained, and a uniquely determined level for each of monitor and control apparatuses WS1 to WSm is determined. A function of the monitor and control apparatuses requesting an access and its operation type are identified and, after that, it is determined on the basis of a predetermined table whether the access can be permitted or not.
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