System for monitoring and locating people and objects
1 Assignment
0 Petitions
Accused Products
Abstract
A method, computer program product and system for monitoring and locating an object using secure communications without relying on GPS. A monitoring device may activate a monitored unit (unit monitored by monitoring device) by transmitting a seed of an algorithm and a time synchronization to the monitored unit. The seed and time synchronization may be used in conjunction with an algorithm, e.g., frequency hopping table, stored in both the monitoring device and the monitored unit, to allow both the monitoring device and the monitored unit to communicate with one another at a uniquely synchronized time and frequency thereby making it more difficult for a third party to locate the monitored unit. An alert may be generated when the monitored unit is located beyond a predetermined zone. The monitored unit may be located by activating a directional antenna in conjunction with a digital compass on the monitoring device.
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Citations
65 Claims
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1-62. -62. (cancelled)
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63. A system, comprising:
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a monitored unit attached to an object, wherein said monitored unit comprises;
a memory unit operable for storing a computer program operable for determining if said monitored unit has been tampered with;
a processor coupled to said memory unit;
an emitter coupled to said processor, wherein said emitter is configured to emit infrared signals to a skin of an individual; and
a detector coupled to said processor, wherein said detector is configured to receive reflections of said emitted infrared signals from said skin;
wherein said processor, responsive to said computer program, comprises;
circuitry operable for determining if an intensity of said reflections of said emitted infrared signals is less than a threshold; and
circuitry operable for transmitting an indication that said monitored unit has been tampered with if said intensity of said reflections of said emitted infrared signals is less than said threshold. - View Dependent Claims (64, 65)
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Specification