Patent ID: 9380384
Filing Date: 2016-06-28
CPC Classification: H04R

Claim Text:
1. Electronic circuitry, comprising: a first microelectromechanical system (MEMS) structure configured to exhibit a first frequency response in a voice frequency range and to capture a first signal; a second MEMS structure coupled to the first MEMS structure, wherein the second MEMS structure is configured to exhibit a second frequency response in an ultrasound frequency range and to capture a second signal, wherein a combination of the first frequency response and the second frequency response achieves a target frequency response in a combined frequency range; automatic gain control (AGC) circuitry coupled to the second MEMS structure, wherein the AGC circuitry is configured to adjust processing in the ultrasound frequency range when a signal level meets or exceeds an amplitude threshold; and a summer configured to combine the first signal and the second signal.