公开(公告)号：US20240214735A1

公开(公告)日：2024-06-27

申请号：US18529364

申请日：2023-12-05

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Robert J. HATFIELD ,  Alastair M. BOOMER ,  John P. LESSO ,  Calum J. TAIT

IPC: H04R5/04 ,  H01R24/58 ,  H04R1/10 ,  H04R3/12 ,  H04R29/00

CPC classification number: H04R5/04 ,  H01R24/58 ,  H04R1/1041 ,  H04R3/12 ,  H04R29/002 ,  H04R29/004 ,  H04R2420/03 ,  H04R2420/05 ,  H04R2420/09

Abstract: In an example there is provided circuitry for detecting a type of accessory connected to a first jack plug inserted into a first jack port. The circuitry is configured to determine whether an audio signal is present at the tip or the ring of the first jack plug. If there is an audio signal present at the tip or the ring of the first jack plug, then the circuitry is configured to determine that the type of accessory is a stereo line-in accessory connected to a 3-pole jack plug.

公开(公告)号：US20220130366A1

公开(公告)日：2022-04-28

申请号：US17465288

申请日：2021-09-02

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Calum J. TAIT

IPC: G10K11/178

Abstract: Circuitry for noise cancellation in a headset worn by a user, the circuitry comprising: an input for receiving one or more heartbeat signals representative of a heartbeat of the user; a processor for generating a heartbeat noise cancellation signal based on the one or more heartbeat signal, the heartbeat noise cancellation signal to cancel a noise associated with the heartbeat in the user's ear; an output for outputting the heartbeat noise cancellation signal to a transducer of the headset.