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US 11,908,225 B2Granted
Ultrasonic sensing
AssigneeQUALCOMM Incorporated
InventorsVishnu Vardhan Kasilya Sudarsan, Sumeet Kumar Sahu, Naga Chandan Babu Gudivada, Rakesh Pallerla
Life of this patent
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Abstract
In one example, a method comprises: receiving an indication that an object is within a distance from an array of ultrasonic transducers; based on the indication, configuring a subset of the array of ultrasonic transducers to perform an ultrasonic sensing operation on the object; obtaining, from the subset of the array of ultrasonic transducers, an output of the ultrasonic sensing operation; and performing an action based on the output of the ultrasonic sensing operation.
Claims20
A method, comprising:
- receiving an indication that an object is within a distance from an array of ultrasonic transducers, wherein the indication is generated based on a degree of change in a capacitance measured by a capacitive sensor of an array of capacitive sensors exceeding a first threshold and detecting that the object is within the distance from the array of capacitive sensors, wherein the indication is received from a capacitive sensor module comprising the array of capacitive sensors that form a stack with the array of ultrasonic transducers;
- receiving, from the capacitive sensor module, capacitances measured by the array of capacitive sensors;
- determining a subset of the array of capacitive sensors for which degrees of change in the measured capacitances exceed a second threshold;
- and
- identifying a subset of the array of ultrasonic transducers based on the subset of the array of capacitive sensors;
- based on the indication, configuring the subset of the array of ultrasonic transducers to perform an ultrasonic sensing operation on the object;
- obtaining, from the subset of the array of ultrasonic transducers, an output of the ultrasonic sensing operation;
- and
- performing an action based on the output of the ultrasonic sensing operation.
6 more elements
An apparatus, comprising:
- a memory that stores a set of instructions;
- and
- a hardware processor configured to execute the set of instructions to:
- receive an indication that an object is within a distance from an array of ultrasonic transducers, wherein the indication is generated based on a degree of change in a capacitance measured by a capacitive sensor of an array of capacitive sensors exceeding a first threshold and detecting that the object is within the distance from the array of capacitive sensors, wherein the indication is received from a capacitive sensor module comprising the array of capacitive sensors that form a stack with the array of ultrasonic transducers;
- receive, from the capacitive sensor module, capacitances measured by the array of capacitive sensors;
- determine a subset of the array of capacitive sensors for which degrees of change in the measured capacitances exceed a second threshold;
- and
- identify a subset of the array of ultrasonic transducers based on the subset of the array of capacitive sensors;
- based on the indication, configure the subset of the array of ultrasonic transducers to perform an ultrasonic sensing operation on the object;
- obtain, from the subset of the array of ultrasonic transducers, an output of the ultrasonic sensing operation;
- and
- perform an action based on the output of the ultrasonic sensing operation.
9 more elements
A non-transitory computer readable medium storing a set of instructions that, when executed by a hardware processor, causes the hardware processor to:
- receive an indication that an object is within a distance from an array of ultrasonic transducers, wherein the indication is generated based on a degree of change in a capacitance measured by a capacitive sensor of an array of capacitive sensors exceeding a first threshold and detecting that the object is within the distance from the array of capacitive sensors, wherein the indication is received from a capacitive sensor module comprising the array of capacitive sensors that form a stack with the array of ultrasonic transducers;
- receive, from the capacitive sensor module, capacitances measured by the array of capacitive sensors;
- determine a subset of the array of capacitive sensors for which degrees of change in the measured capacitances exceed a second threshold;
- and
- identify a subset of the array of ultrasonic transducers based on the subset of the array of capacitive sensors;
- based on the indication, configure the subset of the array of ultrasonic transducers to perform an ultrasonic sensing operation on the object;
- obtain, from the subset of the array of ultrasonic transducers, an output of the ultrasonic sensing operation;
- and
- perform an action based on the output of the ultrasonic sensing operation.
6 more elements
Dependencies are inferred from the claim text.