公开(公告)号：US20230136545A1

公开(公告)日：2023-05-04

申请号：US17966752

申请日：2022-10-14

Applicant: Apple Inc.

Inventor： Daniel K. BOOTHE ,  Onur I. ILKORUR ,  Marty E. JOHNSON ,  Chris WILK ,  Jason T. PARKER ,  Tom-Davy W. SAUX

IPC: H04R1/34 ,  H04R1/28 ,  H04R5/02

Abstract: Implementations of the subject technology provide directional acoustic devices such as directional speakers. A directional speaker may include a sound-generating component that projects sound from an acoustic port, and has a rear or interior surface that interfaces with a back volume of the speaker. The directional speaker may also include one or more acoustic ducts coupled to the back volume that direct a negative polarity version of the sound to one or more desired locations in an external environment of the speaker. The negative polarity version of the sound may cancel portions of the sound projected from the acoustic port, at one or more desired locations in the external environment that are determined by the arrangement of the acoustic duct(s).

公开(公告)号：US20240107246A1

公开(公告)日：2024-03-28

申请号：US18239718

申请日：2023-08-29

Applicant: Apple Inc.

Inventor： Tom-Davy W. SAUX ,  Champ DARABUNDIT ,  Martin E. JOHNSON ,  Victoria CHIU

IPC: H04R29/00

CPC classification number: H04R29/001 ,  H04R2430/20

Abstract: Aspects of the subject technology provide improved techniques for determining a state of an audio device, including reduced power techniques for determining if an earbud is currently being worn in a user's ear or not. In aspects, a potential state change in an audio device may be detected, and in response measurement of the state of the device may be initiated, such as by emitting an audio signal and then determining the state of the audio device based on a sensed version of the emitted audio signal.

公开(公告)号：US20200020313A1

公开(公告)日：2020-01-16

申请号：US16036806

申请日：2018-07-16

Applicant: Apple Inc.

Inventor： Thanh Phong HUA ,  Esge B. ANDERSEN ,  Tom-Davy W. SAUX ,  Scott C. GRINKER

IPC: G10K11/178 ,  H04R1/10

Abstract: A headphone has a driver, an internal microphone, an accelerometer, and an external microphone. An audio processor analyzes signals to detect wind noise. Gain of lower frequencies is reduced relative to higher frequencies, in a first filter that is operating on an audio signal from the external microphone in a feedforward path, responsive to detecting increased wind noise. A second filter in an audio signal feedback path may be adjusted to compensate for the gain change in the first filter that may mitigate occlusion effect. Outputs of the feedforward path in the feedback path are combined to produce an audio signal for the driver. The driver produces sound in the aural canal that has transparency with reduced wind noise, relative to sound external to the headphone. Other aspects are also described and claimed.