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(11) | EP 4 258 688 A3 |
| (12) | EUROPEAN PATENT APPLICATION |
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| (54) | PORTABLE WIRELESS LISTENING DEVICE |
| (57) An earphone comprising: a device housing that defines an interior cavity within the
device housing; an acoustic port formed through a wall of the device housing; an audio
driver disposed within the device housing and aligned to emit sound through the acoustic
port; a user input region disposed along an exterior surface of the device housing;
a flex circuit disposed within the interior cavity, the flex circuit including a first
portion bonded at a first location to an inner surface of the device housing directly
beneath the user-input region, a second portion bonded at a second location to an
inner surface of the device housing spaced apart from the first location, and a third
portion extending between the first and second portions; a force pixel disposed within
the interior cavity and mounted to the first portion of the flex circuit below the
user input region; a plurality of touch pixels disposed within the interior cavity
between the force pixel and the user input region; sensor control circuitry disposed
within the interior cavity and mounted to the second portion of the flex circuit;
and a wireless antenna disposed within the interior cavity defined by the device housing.
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