The present invention generally relates to electronic position and location tracking of various items. More particularly, the present invention is useful for tracking of an individual's position and location. Data is received from both an external position locating apparatus and an accelerometer and is converted into both position and direction of travel information.

 
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< Dual mode uplink/downlink location measurement and multi-protocol location measurement

< Transmission method for cellular telephony mobile equipment's location data

> Wireless communications system including a wireless device locator and related methods

> Security checkpoint simulation

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