公开(公告)号：US20190200114A1

公开(公告)日：2019-06-27

申请号：US16288451

申请日：2019-02-28

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Vitaliy SAPOZHNYKOV ,  Thomas Ivan HARVEY ,  Nafiseh ERFANIANSAEEDI ,  Robert LUKE

IPC: H04R1/10 ,  H04R1/40 ,  H04R3/00 ,  H04R29/00

CPC classification number: H04R1/1041 ,  G10K11/17815 ,  G10K11/17817 ,  G10K11/17823 ,  G10K11/17825 ,  G10K2210/1081 ,  G10K2210/30351 ,  G10K2210/3043 ,  G10K2210/3046 ,  G10K2210/503 ,  H04R1/1008 ,  H04R1/1016 ,  H04R1/406 ,  H04R3/005 ,  H04R29/001 ,  H04R2420/07

Abstract: A method and device for detecting whether a headset is on ear. Microphone signals from a plurality of microphones are used to derive a plurality of signal feature measures, which are normalized to a common reference scale. The signal feature measures are weighted based upon detected signal conditions in the microphone signals. The normalized and variably weighted signal feature measures are then combined to produce an output indication of whether a headset is on ear.

公开(公告)号：US20190110120A1

公开(公告)日：2019-04-11

申请号：US16125950

申请日：2018-09-10

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Vitaliy SAPOZHNYKOV ,  Thomas Ivan HARVEY ,  Nafiseh ERFANIANSAEEDI ,  Robert LUKE

IPC: H04R1/10 ,  H04R1/40 ,  H04R3/00 ,  H04R29/00

Abstract: A method and device for detecting whether a headset is on ear. Microphone signals from a plurality of microphones are used to derive a plurality of signal feature measures, which are normalized to a common reference scale. The signal feature measures are weighted based upon detected signal conditions in the microphone signals. The normalized and variably weighted signal feature measures are then combined to produce an output indication of whether a headset is on ear.

公开(公告)号：US20190110121A1

公开(公告)日：2019-04-11

申请号：US16131299

申请日：2018-09-14

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Vitaliy SAPOZHNYKOV ,  Thomas Ivan HARVEY ,  Nafiseh ERFANIANSAEEDI ,  Robert LUKE

IPC: H04R1/10 ,  H04R29/00

Abstract: A method and device for detecting whether a headset is on ear. A probe signal is generated for acoustic playback from a speaker. A microphone signal from a microphone is received, the microphone signal comprising at least a portion of the probe signal as received at the microphone. The microphone signal is passed to a state estimator, to produce an estimate of at least one parameter of the portion of the probe signal contained in the microphone signal. The estimate of the at least one parameter is processed to determine whether the headset is on ear.