Symbol Technologies, LLC

Larry Maniscalco

Russell Calvarese

Mark P Orlassino

Umberto R Scaramozzino

Ultrasonic transmitters periodically transmit ranging signals at unknown transmit timer values, and an ultrasonic receiver receives the ranging signals at known receive timer values on a mobile device in a venue in which a time difference of arrival (TDOA)-based ultrasonic locationing system is deployed. A controller infers the transmit timer values, and determines a current, real-time position of the mobile device based on flight time differences between the transmit timer values inferred by the controller and the known receive timer values.

Arrangement for, and method of, locating a mobile device in a venue by inferring transit timer values of ranging signals received by the mobile device in a time difference of arrival (TDOA)-based ultrasonic locationing system

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Islip, NY, United States of America

Larry Maniscalco