公开(公告)号：US10812889B2

公开(公告)日：2020-10-20

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.

公开(公告)号：US10397687B2

公开(公告)日：2019-08-27

申请号：US16009524

申请日：2018-06-15

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： David Leigh Watts ,  Brenton Robert Steele ,  Thomas Ivan Harvey ,  Vitaliy Sapozhnykov

IPC: H04R1/10 ,  H04R1/46 ,  G10L21/0208 ,  G10L25/78 ,  G10L21/0216 ,  H04R3/00

Abstract: Embodiments of the invention determine a speech estimate using a bone conduction sensor or accelerometer, without employing voice activity detection gating of speech estimation. Speech estimation is based either exclusively on the bone conduction signal, or is performed in combination with a microphone signal. The speech estimate is then used to condition an output signal of the microphone. There are multiple use cases for speech processing in audio devices.

公开(公告)号：US10117023B2

公开(公告)日：2018-10-30

申请号：US15661594

申请日：2017-07-27

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Thomas Ivan Harvey

IPC: H04R3/04 ,  H04R5/02 ,  H04R5/04

Abstract: A signal processing module is configured to receive left and right channels of stereo input audio data and generate first and second channels of output audio data for first and second loudspeakers where the first and second loudspeakers have different frequency responses to one another. The signal processing module comprises an impulse emphasis block configured to emphasize impulsive sounds in the received audio in at least one of the first and second channels of output audio data.

公开(公告)号：US09749749B2

公开(公告)日：2017-08-29

申请号：US15191769

申请日：2016-06-24

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Thomas Ivan Harvey

IPC: H04S7/00 ,  H04R5/02 ,  H04R5/04 ,  H04S1/00 ,  H04R3/04

CPC classification number: H04R5/04 ,  H04R3/04 ,  H04R5/02 ,  H04R2430/01 ,  H04R2499/11

Abstract: A signal processing module is configured to receive left and right channels of stereo input audio data and generate first and second channels of output audio data for first and second loudspeakers where the first and second loudspeakers have different frequency responses to one another. The signal processing module comprises an impulse emphasis block configured to emphasize impulsive sounds in the received audio in at least one of the first and second channels of output audio data.