Invention Grant
- Patent Title: Speaker device assembly with recoil vibration attenuating counter balance
- Patent Title (中): 扬声器装置具有反冲振动衰减平衡
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Application No.: US14693723Application Date: 2015-04-22
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Publication No.: US09485587B1Publication Date: 2016-11-01
- Inventor: Rune Skramstad , Øivind Stuan , Kevin Lee Hughes
- Applicant: Cisco Technology, Inc.
- Applicant Address: US CA San Jose
- Assignee: CISCO TECHNOLOGY, INC.
- Current Assignee: CISCO TECHNOLOGY, INC.
- Current Assignee Address: US CA San Jose
- Agency: Polsinelli PC
- Main IPC: H04R9/06
- IPC: H04R9/06 ; H04R9/04 ; H04R3/00 ; H04R9/02

Abstract:
In one embodiment, a speaker device assembly includes a first voice coil assembly moveable along an axis of a magnetic field of a magnetic core responsive to an induced current to facilitate pressure variations in a medium, and cause recoil vibration on a speaker device assembly structure. The speaker device assembly further includes a second voice coil assembly having a counter balance mass that accounts for at least a mass of the first voice coil assembly, and moveable along the axis of the magnetic field in a direction opposite the first voice coil assembly to attenuate the recoil vibration on the speaker device assembly structure, when the first voice coil assembly moves along the axis of the magnetic field.
Public/Granted literature
- US20160316299A1 SPEAKER DEVICE ASSEMBLY WITH RECOIL VIBRATION ATTENUATING COUNTER BALANCE Public/Granted day:2016-10-27
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