Hewlett-packard Development Company, L.P.

Denis Bohm

Michael George Lamming

Kan Zhang

Robert Nelson Mayo

Jeffrey Alan Morgan

Methods and systems for generating time-based identifiers that are used for identifying items is described. In one embodiment, a master key is assigned to an electronic tag. Time-based other keys are generated based on the master key. Time-based identifiers are generated based on the time-based other keys. The time-based identifiers are useful only for a period of time to a holder of the time-based other keys.

Method and system for generating time-based identifiers

An embodiment of a method of identifying a reminder event of the present invention includes receiving identifications over time. Each identification indicates proximity to a place or thing. A log of at least some of the identifications is made. A pattern recognition algorithm is run on the log which recognizes the reminder event. In an embodiment, the pattern recognition algorithm determines that a particular thing was taken by a person from a first place to a second place and the person left the second place without the thing. In another embodiment, the pattern recognition algorithm determines that a person left a first place and arrived at a second place without a particular thing. The person is notified of the reminder event.

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Los Altos, CA, United States of America

Denis Bohm