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US 2025/0164637 A1Published application
Method and system for detecting ultrasounic sensor obstruction
AssigneeInvenSense, Inc.
InventorsAgnes Gomez, Joe Youssef
Life of this patent
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Abstract
Methods and systems are disclosed for a method for determining an ultrasonic sensor is obstructed. Returned signals from a plurality of emitted ultrasonic pulses of an ultrasonic transducer are evaluated. Detection of an obstruction characteristic leads to a determination that the ultrasonic transducer is obstructed.
Claims24
A device comprising:
- an ultrasonic transducer configured to emit an ultrasonic pulse and receive returned signals corresponding to the emitted ultrasonic pulse;
- and
- at least one processor coupled with the ultrasonic transducer and configured to:
- evaluate returned signals from a first plurality of emitted ultrasonic pulses;
- detect an obstruction characteristic based on the evaluation;
- and
- determine the ultrasonic transducer is obstructed based on the detected obstruction characteristic.
4 more elements
A sensor processing unit comprising:
- an ultrasonic transducer configured to emit an ultrasonic pulse and receive returned signals corresponding to the emitted ultrasonic pulse;
- and
- at least one sensor processor coupled with the ultrasonic transducer and configured to:
- evaluate returned signals from a first plurality of emitted ultrasonic pulses;
- detect an obstruction characteristic based on the evaluation;
- and
- determine the ultrasonic transducer is obstructed based on the detected obstruction characteristic.
4 more elements
A method for determining an ultrasonic sensor is obstructed, comprising:
- evaluating, employing at least one processor coupled with an ultrasonic transducer, returned signals from a first plurality of emitted ultrasonic pulses;
- detecting an obstruction characteristic based on the evaluation;
- and
- determining the ultrasonic transducer is obstructed based on the detected obstruction characteristic.
1 more element
Dependencies are inferred from the claim text.