Security systems based on recording unique identifier for subsequent playback
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 21, 1993
Grant Date -
N/A
app pub date -
Nov 18, 1991
filing date -
Nov 18, 1991
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
In order to enable an authorized user of a secured system to detect unauthorized use of that system, the system records identifying information about the user (e.g., a sample of the user's voice) each time the user uses the system. The system also plays back to the user the information recorded the last time that user used the system. If the user does not recognize the information played back or detects anything else wrong with that information, the user knows that someone else has gained access or at least attempted to gain access to the system by posing as him or her.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully