Patent ID: 11899885
Assignee: INTEL CORPORATION
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 15:
16. A non-transitory computer readable medium comprising instructions to cause a computing device to at least:
produce a series of pulses, successive ones of the pulses spaced at first intervals during a first time period;
access noise information output by a microphone, the noise information representative of the pulses and echoes of the pulses reflected off surfaces in a vicinity of the computing device;
process the noise information to determine whether an object is within an activation region associated with the computing device;
in response to detection of the object within the activation region during the first time period, produce additional ones of the pulses spaced at second intervals during a second time period after the first time period, the second intervals being shorter than the first intervals; and
verify the object is within the activation region based on the pulses and corresponding echoes sensed during the second time period.