Invention Grant
- Patent Title: Multi-driver acoustic horn for horizontal beam control
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Application No.: US15514815Application Date: 2015-09-29
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Publication No.: US10334355B2Publication Date: 2019-06-25
- Inventor: Martin E. Johnson , Christopher Wilk , John H. Sheerin , Suzanne Hardy , Tom-Davy William Jendrik Saux
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Womble Bond Dickinson (US) LLP
- International Application: PCT/US2015/053024 WO 20150929
- International Announcement: WO2016/054099 WO 20160407
- Main IPC: H04R9/06
- IPC: H04R9/06 ; H04R1/30 ; H04R1/40 ; H04R1/28 ; H04R1/32 ; H04R1/26
Abstract:
A loudspeaker array has a cabinet in which is formed a continuously open circumferential horn for controlling sound produced by a number of transducers which are positioned in the cabinet, at a throat of the horn. The continuously open circumferential horn may 1) improve the power efficiency of the transducers without unwanted aliasing effects in audible frequency ranges and 2) provide vertical control for sound emitted by the transducers by flaring.
Public/Granted literature
- US20170223447A1 MULTI-DRIVER ACOUSTIC HORN FOR HORIZONTAL BEAM CONTROL Public/Granted day:2017-08-03
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