Invention Grant
- Patent Title: Directional loudspeaker to reduce direct sound
- Patent Title (中): 定向扬声器减少直接声音
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Application No.: US11697088Application Date: 2007-04-05
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Publication No.: US08121336B2Publication Date: 2012-02-21
- Inventor: Steven W. Hutt , Ryan Mihelich , William Neal House , Mark Justin Armitage
- Applicant: Steven W. Hutt , Ryan Mihelich , William Neal House , Mark Justin Armitage
- Applicant Address: US CA Northridge
- Assignee: Harman International Industries, Incorporated
- Current Assignee: Harman International Industries, Incorporated
- Current Assignee Address: US CA Northridge
- Agency: Brinks Hofer Gilson & Lione
- Main IPC: H04R1/02
- IPC: H04R1/02 ; H04B1/00

Abstract:
A directional loudspeaker provides an enhanced listening environment by producing an indirect sound field of greater amplitude than that of the direct sound field. The directional loudspeaker includes loudspeaker elements positioned to provide a listener located below the loudspeaker elements with an impression of sound spaciousness in a vehicle environment. The loudspeaker elements may include baffles or acoustic lenses to deflect the indirect field away from the path to the listener position. The loudspeaker may also be operated with windows open by channeling the indirect sound field through an acoustic waveguide and deflector to the listener. A sound processor is also provided to accept a sound input, create an indirect and direct sound field, output the sound fields to loudspeaker elements, and also may provide electronic enhancement effects such as multi-channel sound or sound parameter adjustment.
Public/Granted literature
- US20080247575A1 DIRECTIONAL LOUDSPEAKER TO REDUCE DIRECT SOUND Public/Granted day:2008-10-09
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