公开(公告)号：US20210127221A1

公开(公告)日：2021-04-29

申请号：US16664728

申请日：2019-10-25

Applicant: SYNAPTICS INCORPORATED

Inventor： Govind Kannan ,  Wensen Liu ,  Jayvon Timmons

IPC: H04R29/00 ,  H04R3/04 ,  H04R1/10

Abstract: A self-calibration system may include a housing including a first calibration circuit configured to coordinate with a second calibration circuit to execute a calibration sequence for an active noise cancelling (ANC) earphone. The housing further includes a cavity configured to accommodate the ANC earphone, wherein the cavity is contoured to simulate the ANC earphone in a user's ear. The housing further includes a calibration microphone coupled with the first calibration circuit and configured to measure calibration sound waves from the ANC earphone, and a calibration speaker configured to emit calibration sound waves to the ANC earphone.

公开(公告)号：US20210104217A1

公开(公告)日：2021-04-08

申请号：US17063656

申请日：2020-10-05

Applicant: SYNAPTICS INCORPORATED

Inventor： Wensen Liu ,  Govind Kannan ,  Jayvon Timmons ,  Trausti Thormundsson

IPC: G10K11/178 ,  G10H1/00

Abstract: Systems and methods for audio listening devices, comprise a speaker coupled to a first housing, a sound port having a first end and a second end, wherein the first end is coupled to the first housing, and the second end is configured to be inserted in an ear canal of a person such that sound waves emitted from the speaker propagates via a secondary path to the ear canal through the sound port, active noise cancellation (ANC) components configured to generate anti-noise signals through the micro-speakers to cancel external noise, and a first microphone disposed within the sound port at the second end of the sound port such that the first microphone is configured to detect the anti-noise signal that propagates through the sound port via the secondary path and the external noise that propagates via a primary path.