Texas Instruments Corporation

Jan Morten Braathen

Merril Ray Newman

Miroslav Oljaca

Maxwell G Robertson

Dennis Patrick Lehman

Timothy Wayne Simerly

A method includes: periodically receiving data via a ubiquitous network from each of a plurality of devices, where each of the devices is associated with one of the plurality of entities and has a unique identifier; determining, as a function of the received data, a plurality of temporal locations for each of the plurality of entities, each of the temporal locations identifying a time and place where an associated entity was located; and, correlating encounters between two or more of the plurality of entities with incidence data associated with an incident, wherein an encounter is registered when a temporal location of a first of the plurality of entities is within a predefined proximity of at least a second of the plurality of entities within a physical zone associated with the incident.

Systems and methods for correlating encounters between entities via ubiquitous networks

A human machine interface (HMI) system and method of operating. The system includes capacitive measurement circuitry coupled to one or more capacitive touch elements, and piezoelectric measurement circuit including interface circuitry coupled to one or more piezoelectric touch elements. The capacitive measurement circuitry includes a gain stage configured to amplify a signal corresponding to a capacitance at the one or more capacitor input terminals by a gain level for communication to processing circuitry. Gain control circuitry is configured to increase the gain level of the gain stage of the capacitive measurement circuitry responsive to the piezoelectric measurement circuitry receiving a user input from at least one of the piezoelectric touch elements. Implementations that further include piezoelectric drive circuitry for haptic output and clearing debris from the keypad are also disclosed.

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Redmond, WA, United States of America

Jan Morten Braathen