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

Claim 22:
23. A computing device comprising:
means for producing a first series of first pulses, successive ones of the first pulses spaced at first intervals during a first time period; and
means for processing noise information, the noise information corresponding to an output of a microphone, the noise information representative of the first pulses and first echoes of the first pulses reflected off surfaces in a vicinity of the computing device, the processing means to:
determine a presence of an object within an activation region associated with the computing device based on the noise information;
in response to detection of the object within the activation region during the first time period, cause the means for producing to produce a second series of second 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 second pulses and corresponding second echoes sensed during the second time period.