US4039044A
(en)
*
|
1974-11-25 |
1977-08-02 |
Oskar Heil |
Low frequency electro-acoustic transducer with interconnected diaphragms interleaved with fixed diaphragms
|
US4056697A
(en)
*
|
1976-09-03 |
1977-11-01 |
Oskar Heil |
Movable diaphragm connector method flexible hinge diaphragm surround and electro-acoustic transducer with folded diaphragm with intermediate flexible portions
|
US4107479A
(en)
*
|
1976-09-03 |
1978-08-15 |
Oskar Heil |
Electro-acoustic transducer
|
JPS55161496A
(en)
*
|
1979-05-31 |
1980-12-16 |
Matsushita Electric Ind Co Ltd |
Diaphragm for speaker and its production
|
US4354066A
(en)
*
|
1980-09-15 |
1982-10-12 |
Necoechea Robert W |
Rigid-diaphragm transducer with plural coils
|
US4544805A
(en)
*
|
1981-09-25 |
1985-10-01 |
Tadashi Sawafuji |
Plane speaker
|
FR2521808A1
(en)
*
|
1982-02-12 |
1983-08-19 |
Richard Rapp Robert |
Ribbon loudspeaker for HF sounds - has two magnetic poles defining air gap which contains electrically conducting ribbon
|
FR2555007B1
(en)
*
|
1983-11-10 |
1987-02-20 |
Benard Alain |
HIGH EFFICIENCY, LARGE POWER SPEAKER
|
DE3517855C1
(en)
*
|
1985-05-08 |
1986-10-23 |
Elac Phonosysteme GmbH, 2300 Kiel |
Electrodynamic speaker
|
SE503180C2
(en)
*
|
1994-08-29 |
1996-04-15 |
Centara Patent Ab |
Electroacoustic converter
|
AU7031596A
(en)
*
|
1995-10-27 |
1997-05-01 |
Harman International Industries Incorporated |
Multiple cone transducer
|
AUPO832797A0
(en)
*
|
1997-07-30 |
1997-08-28 |
Alsop, Glen |
Electro-acoustic transducer
|
US6868166B1
(en)
*
|
1998-06-10 |
2005-03-15 |
Xiafu Zhang |
Chord-like vibration loudspeaker
|
DE10018032C1
(en)
*
|
2000-04-04 |
2001-08-16 |
Leibniz Inst Fuer Neurobiologi |
Acoustic transducer for headphones
|
DE10018033C1
(en)
*
|
2000-04-04 |
2001-11-29 |
Leibniz Inst Fuer Neurobiologi |
Acoustic transducer has membrane(s) of elastic, non-magnetic or weakly magnetic material connected to conducting tracks on which Lorenz force acts
|
AU2001256247A1
(en)
*
|
2000-04-04 |
2001-10-15 |
Leibnitz-Institut Fur Neurobiologie |
Acoustic transducer for broad-band loudspeakers or headphones
|
US20020126867A1
(en)
*
|
2001-03-07 |
2002-09-12 |
Eliezer Aizik |
Flexible ribbon speaker
|
BG65671B1
(en)
*
|
2003-10-14 |
2009-05-29 |
Христо ЦАНОВ |
Flat sound system
|
ATE548859T1
(en)
*
|
2004-06-03 |
2012-03-15 |
Tymphany Hk Ltd |
ACOUSTIC TRANSDUCER HAVING A PLURALITY OF MEMBRANES ARRANGED ON THE SAME AXIS
|
US9462388B2
(en)
|
2004-06-03 |
2016-10-04 |
Tymphany Hk Limited |
Acoustic transducer comprising a plurality of coaxially arranged diaphragms
|
DE202004015635U1
(en)
*
|
2004-10-07 |
2004-12-02 |
Elac Electroacustic Gmbh |
Coaxial speaker with wave-shaped membrane
|
DE102005052679B4
(en)
*
|
2004-11-23 |
2014-04-03 |
Elac Electroacustic Gmbh |
Folile for a jet tweeter according to the Air-Motion principle
|
DE102004059067B4
(en)
*
|
2004-12-07 |
2009-07-30 |
Elac Electroacustic Gmbh |
Foil for an air-motion loudspeaker
|
DE102005020746B4
(en)
*
|
2005-05-02 |
2009-10-01 |
Raimund Mundorf |
magnet system
|
AU2007231525A1
(en)
*
|
2006-03-28 |
2007-10-04 |
Immersion Technology Property Limited |
Loudspeaker system with acoustic equalisation
|
DE102007020847B4
(en)
*
|
2007-05-02 |
2009-11-26 |
Mundorf Eb Gmbh |
Membrane arrangement for an electrodynamic sound transducer and loudspeaker with such a membrane arrangement
|
DE102007029560B4
(en)
*
|
2007-06-26 |
2010-02-18 |
Mundorf Eb Gmbh |
Membrane arrangement for an air-motion transformer (AMT) and sound transducer with such a membrane arrangement
|
DE102008047796A1
(en)
|
2008-09-17 |
2010-04-15 |
Siemens Aktiengesellschaft |
Device for generating broadband sound in the audible range of humans
|
US20100137757A1
(en)
*
|
2008-12-01 |
2010-06-03 |
Charles Timberlake Zeleny |
Zeleny therapeutic sonosphere
|
US20100249678A1
(en)
*
|
2008-12-01 |
2010-09-30 |
Charles Timberlake Zeleny |
Zeleny therapeutic sonosphere
|
US20100135509A1
(en)
*
|
2008-12-01 |
2010-06-03 |
Charles Timberlake Zeleny |
Zeleny sonosphere
|
WO2010095203A1
(en)
*
|
2009-02-17 |
2010-08-26 |
株式会社 村田製作所 |
Acoustic transducer unit
|
JP5414419B2
(en)
*
|
2009-08-11 |
2014-02-12 |
株式会社オーディオテクニカ |
Ribbon microphone unit and ribbon microphone
|
DE102010043560A1
(en)
*
|
2010-11-08 |
2012-05-10 |
Siemens Aktiengesellschaft |
Microphone using a magnetoelastic effect
|
US9281763B2
(en)
*
|
2011-09-28 |
2016-03-08 |
DigitalOptics Corporation MEMS |
Row and column actuator control
|
CA2871929C
(en)
*
|
2012-05-09 |
2020-12-15 |
Eugene J. CHRISTENSEN |
Wide-range, wide-angle loudspeaker driver
|
CN102868959B
(en)
*
|
2012-10-12 |
2015-01-21 |
张百良 |
Aluminium strip speaker
|
US20140247955A1
(en)
*
|
2013-03-04 |
2014-09-04 |
Sony Corporation |
Folded electrostatic speaker
|
CN103781002B
(en)
*
|
2014-01-26 |
2017-07-28 |
歌尔股份有限公司 |
A kind of many vibrating membrane loudspeakers
|
CN203813956U
(en)
*
|
2014-01-26 |
2014-09-03 |
歌尔声学股份有限公司 |
Multi-diaphragm loudspeaker system
|
WO2017019434A1
(en)
*
|
2015-07-24 |
2017-02-02 |
Dolby Laboratories Licensing Corporation |
Speaker driver including carbon material
|
KR102349453B1
(en)
*
|
2015-07-24 |
2022-01-10 |
삼성전자주식회사 |
Speaker apparatus and electronic apparatus including the same
|
WO2017106985A1
(en)
*
|
2015-12-21 |
2017-06-29 |
邓克忠 |
Pneumatic high pitch monomer having improved sound membrane and improved structure
|
JP6693844B2
(en)
*
|
2016-09-12 |
2020-05-13 |
アルパイン株式会社 |
Speaker device and microphone device
|
US10284945B2
(en)
*
|
2016-11-30 |
2019-05-07 |
Eugene Julius Christensen |
Air motion transformer passive radiator for loudspeaker
|
US10567866B1
(en)
*
|
2018-08-17 |
2020-02-18 |
xMEMS Labs, Inc. |
Sound producing device and valve
|
US10863280B2
(en)
|
2019-03-05 |
2020-12-08 |
xMEMS Labs, Inc. |
Sound producing device
|
DE102019111578A1
(en)
|
2019-05-03 |
2020-11-05 |
HEDD Audio GmbH |
Diaphragm for sound transducers
|
US11166105B2
(en)
|
2020-04-02 |
2021-11-02 |
Rex PRICE |
Movable diaphragms
|
US11595758B2
(en)
|
2020-07-09 |
2023-02-28 |
Apple Inc. |
MEMS speaker
|
WO2022217403A1
(en)
*
|
2021-04-12 |
2022-10-20 |
诺思(天津)微系统有限责任公司 |
Mems speaker and electronic device
|
WO2024033635A1
(en)
|
2022-08-08 |
2024-02-15 |
Arya Audio Labs Ltd |
Electroacoustic transducer
|