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公开(公告)号：US20220070576A1
公开(公告)日：2022-03-03
申请号：US17067611
申请日：2020-10-09
Applicant: Apple Inc.
Inventor： Jason C. Della Rosa , Alexander R. Gould , Ethan W. Juhnke , John H. Sheerin , Glenn K. Trainer , Ariel A. Massias , Edward V. Anderson , Pablo Seoane Vieites , Junyi Yang
Abstract: An electronic speaker comprising: a device housing defining an interior cavity and including a sidewall extending around the interior cavity between an upper portion and a lower portion of the device housing; first and second sound channels formed at opposing locations along the sidewall, each of the first and second sound channels comprising a plurality of openings formed through the sidewall; a passive radiator array comprising first and second passive radiators disposed within the interior cavity, spaced apart from each other in an opposing relationship and aligned to project sound through the first and second sound channels; an active driver disposed in the device housing and configured to generate sound in response to an electrical signal, the active driver comprising driver housing disposed at least partially between the first and second passive radiators, a magnet disposed within the driver housing, a voice coil and a diaphragm facing downwards towards the lower surface of the device housing; and an annular sound channel disposed along the bottom portion of the device housing adjacent to the diaphragm of the active driver.
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公开(公告)号：US11310585B2
公开(公告)日：2022-04-19
申请号：US17067611
申请日：2020-10-09
Applicant: Apple Inc.
Inventor： Jason C. Della Rosa , Alexander R. Gould , Ethan W. Juhnke , John H. Sheerin , Glenn K. Trainer , Ariel A. Massias , Edward V. Anderson , Pablo Seoane Vieites , Junyi Yang
Abstract: An electronic speaker comprising: a device housing defining an interior cavity and including a sidewall extending around the interior cavity between an upper portion and a lower portion of the device housing; first and second sound channels formed at opposing locations along the sidewall, each of the first and second sound channels comprising a plurality of openings formed through the sidewall; a passive radiator array comprising first and second passive radiators disposed within the interior cavity, spaced apart from each other in an opposing relationship and aligned to project sound through the first and second sound channels; an active driver disposed in the device housing and configured to generate sound in response to an electrical signal, the active driver comprising driver housing disposed at least partially between the first and second passive radiators, a magnet disposed within the driver housing, a voice coil and a diaphragm facing downwards towards the lower surface of the device housing; and an annular sound channel disposed along the bottom portion of the device housing adjacent to the diaphragm of the active driver.
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公开(公告)号：US12185067B2
公开(公告)日：2024-12-31
申请号：US17750271
申请日：2022-05-20
Applicant: Apple Inc.
Inventor： Thomas M. Jensen , Andrew P. Bright , Ariel A. Massias , Ethan R. Duni , Hannes Breitschaedel , Max Rasmussen
Abstract: Aspects of the subject technology relate to electronic devices having speakers. An electronic device may include speaker control circuitry for a speaker. The speaker control circuitry may include multiple parallel prediction blocks that share a single look-ahead delay, and that feed, in parallel, a single controller. The single controller can generate a joint modification to an audio signal based on the parallel outputs of the prediction blocks. The joint modification can then be applied to the audio signal to generate a speaker-protection audio signal that can be output by the speaker. The speaker control circuitry may also include a system modeler that models the speaker system of the electronic device based on feedback measured physical characteristics. In this way, a reduced control safety margin can be achieved by more accurate model predictors, which can allow the controller to safely drive the speaker system to its full capability.
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