US 12,007,490 B2Granted

Wireless location assisted zone guidance system incorporating secure transmission of location

AssigneeGPSip, Inc.

InventorRodney P. Landers

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Abstract

A fully self-contained portable location tracking device autonomously compares a current location with a latitude-longitude map stored in memory. The latitude-longitude map stores guidance zone values indicative of a predetermined safe zone, progressive alert zones, and a predetermined reference point. The guidance zone values represent actions to be taken based upon current location. When initiated by some combination of current location or zone value, location history, and time, or when otherwise queried, the tracking device transmits the offset from reference location, rather than actual current location data, to at least one wireless communications monitoring apparatus. When further security is desired, the transmitted offset is also digitally encrypted or otherwise obfuscated. The monitoring apparatus also stores a copy of the latitude-longitude map and reference point. Using the received offset, the monitoring apparatus knows both the location of the location tracking device and the actions to be taken based upon current location.

Claims10

Dependent claims

In combination, a portable location tracking device and a monitoring apparatus,

said portable location tracking device having:
a GPS location determination apparatus configured to determine an instantaneous latitude-longitude location of said portable location tracking device;
memory containing a two-dimensional data array corresponding to longitude and latitude;
a secret reference point within said two-dimensional array that is privately shared with said monitoring apparatus;
and
a data exchange apparatus configured to transmit an offset between said instantaneous latitude-longitude location of said portable location tracking device and said secret reference point;
said monitoring apparatus having:
a data exchange apparatus configured to receive said offset between said instantaneous latitude-longitude location of said portable location tracking device and said secret reference point from said portable location tracking device data exchange apparatus;
and
memory containing a two-dimensional data array corresponding to said portable location tracking device two-dimensional array, and said privately shared reference point within said monitoring apparatus two-dimensional array corresponding to said portable location tracking device secret reference point;
said monitoring apparatus configured to apply said received offset between said instantaneous latitude-longitude location of said portable location tracking device and said secret reference point to said privately shared reference point within said monitoring apparatus two-dimensional array and thereby determine said instantaneous latitude-longitude location of said portable location tracking device;
wherein said data exchange apparatus is configured to add data noise to said offset transmission and thereby further obfuscate said instantaneous latitude-longitude location of said portable location tracking device within said transmission.

9 more elements

A method of securely transmitting an instantaneous location of a portable location tracking device to a monitoring apparatus, comprising the steps of:

generating a two-dimensional data array representing longitude and latitude within each of said portable location tracking device and said monitoring apparatus;
storing a privately held reference point within said generated two-dimensional data array into each of said portable location tracking device and said monitoring apparatus;
transmitting an offset between a data table representation of an instantaneous location of a portable location tracking device and said privately held reference point to said monitoring apparatus;
and
applying said transmitted offset to said monitoring apparatus two-dimensional data array reference point to locate said data table representation of an instantaneous location of said portable location tracking device;
further comprising the step of adding data noise to said offset transmission and thereby further obfuscating said instantaneous location of said portable location tracking device within said transmission.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/026,154Filed 18 Sep 2020 · us provisional application
Priority: 18 Sep 2019
Published: US 2021/0080595 A118 Mar 2021
Granted: 11 Jun 2024
Term ends: Not estimatedThe source records don’t support an estimate.

Classification16 codes

G01S 19/42
The satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting…:…
G01S 19/30
Acquisition or tracking or demodulation of signals transmitted by the system: code related
G06F 21/602
Protecting data: providing cryptographic facilities or services
G08B 21/0225
Child monitoring systems using a transmitter-receiver system carried by the parent and the child: monitoring making use of different thresholds,…

Family

Application62/902,325Us provisional application · filed 18 Sep 2019
US 2021/0080595 A1Pre-grant publication · published 18 Mar 2021
US 12,007,490 B2This patent

From the US filing history. Foreign family members aren’t listed.

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