Patent ID: 11908225
Assignee: QUALCOMM INCORPORATED
Field: Computer technology (Electrical engineering)
Classification: CPC G  Y | IPC G

Claim 7:
8. 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.