Embedded electronic security system
First Claim
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1. A method for generating a deviation signal when a user-portable device crosses a boundary, said method comprising the steps of:
- at said device, determining the geolocation;
at said device, storing signals representing a selected geolocation and a defined distance from said selected geolocation, which determines a boundary;
at said device, processing at least said geolocation, selected geolocation, and defined distance signals to determine whether said device lies one of within and without said boundary; and
at said device, generating a deviation signal indicative if said device is one of within and without said boundary;
further comprising the step of transmitting said deviation signal from said device by way an electromagnetic signal transmitter.
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Abstract
A user-portable device determines its own geolocation, and compares that location with a region defined by at least one memorized specified location and a distance. A deviation or alarm signal is generated when either within or without the defined region. In one version, the memorized specified location is the geolocation of another, remote user-portable device.
11 Citations
10 Claims
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1. A method for generating a deviation signal when a user-portable device crosses a boundary, said method comprising the steps of:
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at said device, determining the geolocation; at said device, storing signals representing a selected geolocation and a defined distance from said selected geolocation, which determines a boundary; at said device, processing at least said geolocation, selected geolocation, and defined distance signals to determine whether said device lies one of within and without said boundary; and at said device, generating a deviation signal indicative if said device is one of within and without said boundary; further comprising the step of transmitting said deviation signal from said device by way an electromagnetic signal transmitter.
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2. A method for generating a deviation signal when a user-portable first device is one of within and without a predefined distance of a user-portable second device, said method comprising the steps of:
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at said first device, determining the geolocation of said first device, and generating signals representative thereof; at said second device, determining the geolocation of said second device, and generating signals representative thereof; at said second device, transmitting electromagnetic signals including said signals representative of said geolocation of said second device; at said first device, receiving electromagnetic signals representing said geolocation of said second device, and storing in a memory said signals representing said geolocation of said second device; at said first device, storing in a memory signals representing a defined distance which, when combined with said geolocation of said second device, determines a boundary about said second device; at said first device, processing said geolocation of said first device, said geolocation of said second device, and said signals representing a defined distance, to determine whether said first device lies one of within and without said boundary; and at at least one of said first and second devices, generating a deviation signal indicative of the geolocation of said first device being one of within and without said boundary. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10)
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Specification