H04R - Loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers; Deaf-aid sets; Public address systems

More topics under "H04R - Loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers; Deaf-aid sets; Public address systems" (141,872)
H04R 1 - Details of transducers (42,173)
H04R 11 - Transducers of moving-armature or moving-core type (1,828)
H04R 13 - Transducers having an acoustic diaphragm of magnetisable material directly co-acting with electromagnet (404)
H04R 15 - Magnetostrictive transducers (423)
H04R 17 - Piezo-electric transducers; Electrostrictive transducers (7,213)
H04R 19 - Electrostatic transducers (5,387)
H04R 21 - Variable-resistance transducers (174)
H04R 23 - Transducers other than those covered by groups (1,562)
H04R 25 - Deaf-aid sets (22,418)
H04R 27 - Public address systems (2,454)
H04R 29 - Monitoring arrangements; Testing arrangements (4,957)
H04R 3 - Circuits for transducers (18,190)
H04R 31 - Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor (5,050)
H04R 5 - Stereophonic arrangements (11,598)
H04R 7 - Diaphragms for electromechanical transducers; Cones (6,555)
H04R 9 - Transducers of moving-coil, moving-strip, or moving-wire type (11,486)

Patents for H04R - Loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers; Deaf-aid sets; Public address systems (314)
09/2014
09/03/2014	EP2772235A1 Ear warmer having a curved ear portion
06/2014
06/11/2014	EP2741522A1 Protective cover assembly
05/2014
05/06/2014	US8718309 Speaker apparatus combining earpiece and hands free functions
04/2014
04/16/2014	CN1839663B An audio stereo processing method, device and system
01/2014
01/02/2014	US20140003624 Acoustic element
11/2013
11/26/2013	US8594358 Passive acoustical radiating
11/14/2013	DE102004036355B4 Kopfhörerstruktur mit einem Mischklangfeld Headphone structure with a mixed sound field
09/2013
09/11/2013	CN1906970B Passive acoustic radiating
04/2013
04/30/2013	CA2535445C Ear warmer having a curved ear portion
12/2012
12/25/2012	US8340315 Assembly, system and method for acoustic transducers
08/2012
08/29/2012	CN101278596B Directional audio capturing
05/2012
05/24/2012	US20120124715 Ear Warmer Having A Curved Ear Portion
04/2012
04/03/2012	US8150085 Reflex loudspeaker structure
03/2012
03/01/2012	US20120051573 Passive Acoustical Radiating
12/2011
12/21/2011	EP1654909B1 An audio stereo processing method, device and system
12/14/2011	EP1600031B1 Device having matched accoustical impedance and method
11/2011
11/01/2011	US8050569 Device for optical remote monitoring and system comprising such a device
10/2011
10/26/2011	EP1654906B1 Passive acoustic radiating
10/18/2011	US8041067 Earphone structure with a composite sound field
10/04/2011	US8031896 Passive acoustic radiating
09/2011
09/27/2011	USRE42737 Voice-to-remaining audio (VRA) interactive hearing aid and auxiliary equipment
08/2011
08/23/2011	US8005249 Ear canal signal converting method, ear canal transducer and headset
08/16/2011	US8000490 Earphone structure with a composite sound field
07/2011
07/06/2011	CN1973575B Acoustic element
06/2011
06/28/2011	US7970158 Sound system
06/21/2011	US7962970 Ear warmer having a curved ear portion
03/2011
03/02/2011	EP2291000A2 Passive acoustic radiating
04/2010
04/20/2010	US7702111 Audio stereo processing method, device and system
01/2010
01/19/2010	US7650006 Method to generate a plane acoustic wave front, a plane wave channel, a loudspeaker construction and a linear loudspeaker array
10/2009
10/29/2009	US20090268934 Reflex Loudspeaker Structure
10/06/2009	CA2379888C Electric signal processing for electroacoustic transducer
09/2009
09/17/2009	US20090233651 Speaker apparatus combining earpiece and hands free functions
07/2009
07/22/2009	EP1688014A4 Behind-the-head mounted personal audio set
07/22/2009	EP1685740A4 Protective cover assembly
07/22/2009	EP1190597B1 Voice-to-remaining audio (vra) interactive hearing aid & auxiliary equipment
07/14/2009	CA2273504C Method for making drying more effective
07/07/2009	US7556597 Active vibration attenuation for implantable microphone
06/2009
06/30/2009	US7554243 Class DE driving amplifier for piezoelectric actuators
05/2009
05/21/2009	US20090129623 Speaker Apparatus in a Wireless Communication Device
05/07/2009	WO2005055642A3 Flat compact-type earphone line case, reel assembly thereof, and method for connecting earphone line to jack line
04/2009
04/23/2009	WO2005048647A3 Active vibration attenuation for implantable microphone
04/08/2009	EP1600031A4 Device having matched accoustical impedance and method
03/2009
03/05/2009	US20090060248 Earphone structure with a composite sound field
03/05/2009	US20090060238 Earphone structure with a composite sound field
01/2009
01/27/2009	US7483544 Audio device post extension and angling system
01/07/2009	EP1897404A4 A speaker apparatus in a wireless communication device
12/2008
12/10/2008	CN101322433A Reflex loudspeaker structure
12/09/2008	US7463748 [Earphone structure with a composite sound field ]
10/2008
10/01/2008	CN101278596A Directional audio capturing
09/2008
09/11/2008	US20080219485 Apparatus, System and Method for Acoustic Signals
09/02/2008	US7420615 Portable electronic device including swivel accessorial module
08/2008
08/21/2008	US20080199023 Assembly, System and Method for Acoustic Transducers
07/2008
07/30/2008	EP1949748A1 Reflex loudspeaker structure
07/23/2008	EP1654906A4 Passive acoustic radiating
06/2008
06/25/2008	CN101208989A Apparatus, system and method for acoustic signals
06/25/2008	CN101208987A A speaker apparatus in a wireless communication device
06/25/2008	CN101208940A A speaker apparatus combining earpiece and hands free functions
06/05/2008	US20080131115 Device for Optical Remote Monitoring and System Comprising Such a Device
06/03/2008	US7382891 Modular personal audio set and system
05/2008
05/29/2008	US20080123892 Instant Clamp For Speech Devices
05/27/2008	CA2476377C Earphone structure with a composite sound field
05/21/2008	CN101185368A Assembly, system and method for acoustic transducers
03/2008
03/12/2008	EP1897404A1 A speaker apparatus in a wireless communication device
03/12/2008	EP1897351A1 A speaker apparatus combining earpiece and hands free functions
02/2008
02/27/2008	EP1891834A1 Apparatus, system and method for acoustic signals
02/27/2008	EP1891833A1 Assembly, system and method for acoustic transducers
02/07/2008	US20080031484 Ear Headphone Unit And A Computer System
11/2007
11/08/2007	US20070258606 Method and arrangement for recording and playing back sounds
10/2007
10/31/2007	EP1683392A4 Microphone system
10/04/2007	US20070230720 Acoustic Element
09/2007
09/27/2007	US20070223729 Sound System
09/26/2007	EP1836784A1 Device for optical remote monitoring and system comprising such a device
09/25/2007	CA2394286C Method and arrangement for recording and playing back sounds
09/13/2007	US20070211574 Parametric Loudspeaker System And Method For Enabling Isolated Listening To Audio Material
08/2007
08/22/2007	EP1819248A1 Instant clamp for speech devices
08/22/2007	CN101023706A 麦克风系统 Microphone System
07/2007
07/18/2007	CN101002499A 音响系统 Sound System
07/17/2007	US7245737 Behind-the-head mounted personal audio set
07/11/2007	CN1998264A An ear headphone unit and a computer system
07/10/2007	US7241258 Passive vibration isolation of implanted microphone
07/04/2007	EP1190597A4 Voice-to-remaining audio (vra) interactive hearing aid & auxiliary equipment
07/04/2007	CN1994019A Input signal dependent signal conditioning
06/2007
06/21/2007	US20070139238 Input signal dependent signal conditioning
06/05/2007	US7227959 Multi-channel digital feedback reducer system
05/2007
05/30/2007	CN1973575A Acoustic element
05/24/2007	WO2007057514A1 Communications device arrangement and its use as a data-transfer link
04/2007
04/18/2007	EP1775991A1 Speaker, module employing it, electronic apparatus and device
04/18/2007	EP1774829A1 An ear headphone unit and a computer system
04/17/2007	US7204800 Implantable hearing aid transducer interface
04/12/2007	WO2007039671A1 Reflex loudspeaker structure
04/12/2007	WO2005048646A3 Passive vibration isolation of implanted microphone
03/2007
03/28/2007	EP1767049A1 Sound system
03/22/2007	US20070064959 Microphone system
03/14/2007	CN1305351C Supplemental audio contents system with wireless communication for cinema and related methods
03/08/2007	WO2005041614B1 Acoustic frame for flat screen television
02/2007
02/22/2007	WO2005020626A3 Ear warmer having a curved ear portion
02/14/2007	EP1752016A1 Acoustic element
01/2007
01/31/2007	CN1906970A Passive acoustic radiating
01/11/2007	US20070008984 Buffer management system, digital audio receiver, headphones, loudspeaker, method of buffer management
01/04/2007	WO2007000485A1 A speaker apparatus combining earpiece and hands free functions

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