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US 11,644,370 B2Granted
Force sensing with an electromagnetic load
AssigneeCirrus Logic, Inc.
InventorsEmmanuel Marchais, Kathryn Rose Holland, Carl Lennart Ståhl, Eric Lindemann
Life of this patent
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Abstract
A system for performing force sensing with an electromagnetic load may include a signal generator configured to generate a signal for driving an electromagnetic load and a processing subsystem configured to monitor at least one operating parameter of the electromagnetic load and determine a force applied to the electromagnetic load based on a variation of the at least one operating parameter.
Claims26
A system for performing force sensing with a haptic transducer comprising:
- a signal generator configured to generate a signal for driving the haptic transducer;
- and
- a processing subsystem configured to:
- monitor at least one electrical operating parameter of the haptic transducer responsive to the signal;
- and
- determine a force applied to the haptic transducer based on a variation of the at least one operating parameter.
3 more elements
A method for performing force sensing with a haptic transducer comprising:
- generating a signal for driving the haptic transducer;
- monitoring at least one electrical operating parameter of the haptic transducer responsive to the signal;
- and
- determining a force applied to the haptic transducer based on a variation of the at least one operating parameter.
1 more element
Dependencies are inferred from the claim text.