Earbud devices with capacitive sensors
First Claim
1. An earbud, comprising:
- a housing having an ear portion and an out-of-ear portion that protrudes from the ear portion;
a controller; and
capacitive sensing circuitry coupled to the controller, wherein the capacitive sensing circuitry includes;
ear electrodes in the ear portion; and
out-of-ear electrodes in the out-of-ear portion, wherein the capacitive sensing circuitry is configured to produce ear sensor data from the ear electrodes and out-of-ear sensor data from the out-of-ear electrodes, wherein the out-of-ear electrodes are uncovered when the earbud is located in a user'"'"'s ear, and wherein the controller is configured to determine an operating state of the earbud based on the ear sensor data and the out-of-ear sensor data, and wherein the out-of-ear sensor data serves as reference data that is substracted from the ear sensor data.
1 Assignment
0 Petitions
Accused Products
Abstract
An earbud may have a housing with an ear portion and an elongated out-of-ear portion that protrudes away from the ear portion. A speaker may be aligned with a speaker port in the ear portion and may emit sound for a user. Audio playback functions and other operations may be controlled using a controller in the earbud. The controller may gather capacitive sensor data and other data and may use this data in identifying an operating mode of the earbud. Using information such as whether the earbud is in an in-ear state or an out-of-ear state or other sensor data, the controller may take actions such as pausing or resuming audio playback or adjusting playback volume. The capacitive sensor data can be gathered using capacitive sensing electrodes located on the ear portion and the stalk portion of the earbud.
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Citations
24 Claims
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1. An earbud, comprising:
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a housing having an ear portion and an out-of-ear portion that protrudes from the ear portion; a controller; and capacitive sensing circuitry coupled to the controller, wherein the capacitive sensing circuitry includes; ear electrodes in the ear portion; and out-of-ear electrodes in the out-of-ear portion, wherein the capacitive sensing circuitry is configured to produce ear sensor data from the ear electrodes and out-of-ear sensor data from the out-of-ear electrodes, wherein the out-of-ear electrodes are uncovered when the earbud is located in a user'"'"'s ear, and wherein the controller is configured to determine an operating state of the earbud based on the ear sensor data and the out-of-ear sensor data, and wherein the out-of-ear sensor data serves as reference data that is substracted from the ear sensor data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An earbud operable in an operating state, comprising:
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a housing having an ear portion configured to be received in an ear and having an elongated out-of-ear portion that protrudes from the ear portion and that extends along a longitudinal axis; a speaker in the ear portion that is configured to emit sound through a speaker port opening in the ear portion; ear capacitive sensing electrodes in the ear portion; out-of-ear capacitive sensing electrodes in the out-of-ear portion that wrap around the longitudinal axis; and control circuitry configured to determine the operating state by classifying capacitive sensor data from the ear capacitive sensing electrodes and the out-of-ear capacitive sensing electrodes, wherein the control circuitry determines that the operating state is an in-ear operating state when the ear capacitive sensing electrodes are contacted and the out-of-ear capacitive sensing electrodes are uncontacted. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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21. An earbud, comprising:
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a housing having an ear portion and an elongated out-of-ear portion that protrudes from the ear portion; a speaker in the ear portion that is aligned with a speaker port opening in the ear portion; capacitive sensing electrodes that include first electrodes in the ear portion and second electrodes in the out-of-ear portion, wherein the first electrodes produce first capacitive sensor data and the second electrodes produce second capacitive sensor data; and control circuitry configured to determine an operating state of the earbud at least partly by subtracting the second capacitive sensor data from the first capacitive sensor data, wherein the second electrodes are uncovered when the operating state is an in-ear operating state. - View Dependent Claims (22, 23, 24)
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Specification