Title:
CAPACITIVE MEMBRANE POSITIONING TRACKING
Document Type and Number:
WIPO Patent Application WO/2016/180299
Kind Code:
A1
Abstract:
A loudspeaker(1) relates to a capacitive membrane(2) positions tracking used in a standard electro-dynamical speaker and offers an additional way of sensing the speaker(1) via the electric interface. State of the art techniques use the voice coil for sensing the speakers' impedance. There are double coil setups where a second coil layer is wound over the whole height of the voice coil in order to maximize power by a given battery voltage. The loudspeaker(1) is based on a capacitive principle found within state of the art C-microphones, but incorporated in the membrane plate which is used by now for stiffening the membrane(2). A simple two wire interface senses the position and requires only few components.
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Inventors:
REINING FRIEDRICH (AT)
Application Number:
PCT/CN2016/081395
Publication Date:
November 17, 2016
Filing Date:
May 09, 2016
Export Citation:
Assignee:
SOUND SOLUTIONS INT CO LTD (CN)
International Classes:
H04R9/06; H04R7/10
Foreign References:
| JP2007060463A | 2007-03-08 | |||
| CN101374372A | 2009-02-25 | |||
| CN101207941A | 2008-06-25 | |||
| CN102273225A | 2011-12-07 | |||
| CN102474684A | 2012-05-23 |
Attorney, Agent or Firm:
BEIJING SANYOU INTELLECTUAL PROPERTY AGENCY LTD. (Block ACorporate Square, No.35 Jinrong Street, Beijing 3, CN)
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