Patent ID: 11930334
Assignee: QUALCOMM TECHNOLOGIES, INC.
Field: Computer technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 7:
8. The device of claim 1, wherein the circuit is configured to detect sound signals in multiple frequency bands and further configured to detect when sound levels of at least a plurality of the sound signals in the multiple frequency bands increase or decrease over a specified amount of time, relative to sound levels of other sound signals detected at prior times;
wherein the circuit is further configured to increase a value of the adaptive threshold, when the sound levels of at least the plurality of the sound signals in the multiple frequency bands increase over the specified amount of time, with the increased value being in accordance with the detected increase; and
wherein the circuit is further configured to decrease a value of the adaptive threshold, when the sound levels of at least the plurality of the sound signals in the multiple frequency bands decrease over the specified amount of time, with the decreased value being in accordance with the detected decrease.