Invention Grant
- Patent Title: Ear presence detection in noise cancelling earphones
- Patent Title (中): 降噪耳机中的耳朵存在检测
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Application No.: US13689567Application Date: 2012-11-29
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Publication No.: US09344792B2Publication Date: 2016-05-17
- Inventor: Nicholas A. Rundle
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Treyz Law Group, P.C.
- Agent Kendall P. Woodruff; Zachary D. Hadd
- Main IPC: G10K11/16
- IPC: G10K11/16 ; H04R1/10

Abstract:
An electronic device may be coupled to an accessory such as a pair of earphones. The earphones may have noise cancellation features that may be implemented using noise cancellation circuitry in the earphones or in the electronic device. The earphones may have ear presence sensor structures that determine whether speakers in the earphones are present at the ears of a user. In one suitable embodiment, control circuitry in the earphones may be used to adjust noise cancellation circuitry in the earphones based on information from the ear presence sensor structures. For example, the control circuitry may deactivate noise cancellation circuitry in response to receiving information from the ear presence sensor structures indicating that the earphones have been removed from a user's ears. In another suitable embodiment, control circuitry in the electronic device may adjust noise cancellation circuitry in the electronic device based on information from the ear presence sensor structures.
Public/Granted literature
- US20140146976A1 Ear Presence Detection in Noise Cancelling Earphones Public/Granted day:2014-05-29
Information query