Time code telephone security access system
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United States of America Patent
Stats
-
Aug 2, 1988
Grant Date -
N/A
app pub date -
Mar 18, 1987
filing date -
Mar 18, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention comprises a novel means of controlling access to long distance telephone services or other information processing systems through the use of time dependent user ID numbers. The ID number of the present invention contains a fixed portion, and a changing portion that changes over time in a predetermined manner. Unless the fixed and changing portions of an incoming ID number received from a user attempting to gain access to the secured system are both correct, access is denied. The invention also includes a multi-use detector that determines if a valid ID number is used simultaneously by two different users.
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Family
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