Invention Grant
- Patent Title: Passive group delay beam forming
- Patent Title (中): 被动群延迟波束形成
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Application No.: US12684598Application Date: 2010-01-08
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Publication No.: US08971547B2Publication Date: 2015-03-03
- Inventor: Doug Button
- Applicant: Doug Button
- Applicant Address: US CT Stamford
- Assignee: Harman International Industries, Incorporated
- Current Assignee: Harman International Industries, Incorporated
- Current Assignee Address: US CT Stamford
- Agency: Alleman Hall McCoy Russell & Tuttle LLP
- Main IPC: H04R3/00
- IPC: H04R3/00 ; H04R1/02 ; H04S7/00 ; H04R3/12

Abstract:
A loudspeaker array and methods for generating sound in an arc pattern. The loudspeaker array includes a plurality of loudspeakers. A delay network is included, the delay network having a plurality of stages. Each stage has a stage input and a stage output. The stage output of each stage is coupled to the stage input of a next stage. Each stage output is also connected to at least one of the plurality of loudspeakers. The stage input of the first stage is coupled to an audio signal input. Each stage is configured to add an electrical delay of the audio signal at each subsequent stage. The electrical delay is adjusted such that the plurality of loudspeakers generates sound in a desired radiation pattern.
Public/Granted literature
- US20130336505A1 PASSIVE GROUP DELAY BEAM FORMING Public/Granted day:2013-12-19
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