Invention Grant
- Patent Title: Speaker with acoustic damped port
- Patent Title (中): 扬声器带防潮端口
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Application No.: US11421022Application Date: 2006-05-30
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Publication No.: US07899201B2Publication Date: 2011-03-01
- Inventor: Wayne Stanley Foletta
- Applicant: Wayne Stanley Foletta
- Applicant Address: US CA Pleasanton
- Assignee: Polycom, Inc.
- Current Assignee: Polycom, Inc.
- Current Assignee Address: US CA Pleasanton
- Agency: Wong, Cabello, Lutsch, Rutherford & Brucculeri LLP
- Main IPC: H04R25/00
- IPC: H04R25/00

Abstract:
Systems, methods, and devices for improving speaker performance with an acoustic damped port are disclosed. In accordance with various embodiments of the present invention, a damping material is placed around a vented frame of a speaker driver, and substantially covers or fills the vents of the frame. In some embodiments, the damping material results in improved impedance matching with acoustic delay, without required dimensional tuning (as with conventional ports). In some embodiments, it also reduces the air velocity gradients minimizing higher order frequency distortion components. In some embodiments, the damping material also acts as an absorber of energy by coupling to the sound wave. In some embodiments, low-frequency performance is improved in a small-scale design.
Public/Granted literature
- US20070280499A1 SPEAKER WITH ACOUSTIC DAMPED PORT Public/Granted day:2007-12-06
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