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

Claim 12:
13. A method comprising:
producing, via a speaker of a computing device, a first series of pulses, successive ones of the pulses in the first series spaced at first intervals during a first time period;
processing, by executing an instruction with at least one processor, noise information from an output of a microphone to determine whether an object is within an activation region associated with the computing device, the noise information representative of at least some of the pulses in the first series and first echoes of the pulses in the first series reflected off surfaces in a vicinity of the computing device;
in response to detection of the object within the activation region during the first time period, producing second series of 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
verifying the object is within the activation region based on at least some of the pulses in the second series and corresponding second echoes sensed during the second time period.