Patents
Sitemap › H04 - Electric communication technique › H04R - Loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers; Deaf-aid sets; Public address systems › H04R 9 - Transducers of moving-coil, moving-strip, or moving-wire type
Patents for H04R 9 - Transducers of moving-coil, moving-strip, or moving-wire type (11,486)
10/2003
10/14/2003US6633649 Quick release spider clamp for loudspeakers
10/09/2003WO2002034005A3 Electroacoustic transducer having spring contacts
10/09/2003US20030190052 Shorting rings in dual-coil dual-gap loudspeaker drivers
10/09/2003US20030190051 Full range loudspeaker
10/08/2003EP1351548A2 A loudspeaker voice coil having a coil fixing mechanism
10/08/2003EP1351546A2 Speaker capable to playback in wide frequency range
10/08/2003EP1351545A2 Entertainment sound panels
10/08/2003EP1350414A1 Concentric co-planar multiband electro-acoustic converter
10/08/2003EP1084592B1 Resonant panel-form loudspeaker
10/08/2003EP0974243B1 An electroacoustic transducer and a diaphragm for an electroacoustic transducer
10/08/2003CN2579126Y Telescopic positioning structure of earphone
10/08/2003CN2579125Y Photoelectric microphone structure
10/08/2003CN1447623A Composing process of elastic fabric, elastic cloth made therefrom
10/02/2003WO2003081945A1 Pickup device
10/02/2003US20030185416 Speaker capable to playback in wide frequency range
10/02/2003US20030185415 Speaker
10/02/2003US20030185407 Speaker for an electronic instrument
10/02/2003US20030183443 Entertainment sound panels
10/02/2003CA2421730A1 Entertainment sound radiators
10/01/2003EP1250827B1 Transducer
10/01/2003CN1446024A Planar series mangnetic circuit and electricity-mechanism-sound transducers using the magnetic circuit
10/01/2003CN1123277C Loudspeaker unit
09/2003
09/30/2003US6628800 Electroacoustic transducer and method for manufacturing the same
09/30/2003US6628790 Apparatus for on-ear operation and off-ear operation with two sound reproduction transducers
09/25/2003WO2003015462A3 Loudspeaker with a three-dimensional diaphragm
09/24/2003EP1183905B1 Mounting of the coil in an electroacoustic transducer
09/24/2003EP1108345B1 Loudspeakers comprising a resonant panel-form member
09/24/2003CN2575928Y Armchair with adjustable back
09/23/2003US6622817 Sound reproduction device working according to the bending wave principle
09/18/2003US20030174856 Flexible diaphragm with integrated coil
09/17/2003CN1443433A Compact high performance speaker
09/17/2003CN1443022A 扬声器装置 Speaker system
09/17/2003CN1443021A Audio equipment
09/17/2003CN1443020A Signal excitation type electric microphone system
09/17/2003CN1121809C Loudspeaker
09/16/2003US6621912 Speaker
09/16/2003US6621911 Multifunction acoustic device
09/16/2003US6621910 Method and arrangement for improving leak tolerance of an earpiece in a radio device
09/12/2003WO2002082857A3 Actuator assembly
09/11/2003US20030169895 Method for producing electric-mechanical acoustic converter
09/10/2003EP1343354A1 Method for manufacturing speaker
09/10/2003EP1343349A1 Speaker, speaker module, and electronic equipment using the speaker module
09/10/2003CN2572703Y Moving-coil microphone
09/10/2003CN2572702Y Sound controlled loudspeaker with lighting
09/10/2003CN2572681Y Earphone with microphone
09/10/2003CN1441623A Pick-up of microphone
09/10/2003CN1441622A Double side micro loudspeaker unit
09/09/2003US6618487 Electro-dynamic exciter
09/04/2003US20030165249 Acoustic apparatus for preventing howling
09/04/2003US20030164262 Speaker apparatus
09/04/2003DE20309967U1 Loudspeaker with increased magnetic flux has ring magnet arranged coaxially in bottom yoke and on outer periphery of core magnet so gap of defined width exists between magnets
09/03/2003EP1340407A2 Loudspeakers
08/2003
08/28/2003WO2003071832A1 Thin speaker and method of manufacturing the speaker
08/28/2003US20030161494 Acoustic transducer for broad-band loudspeakers or headphones
08/27/2003EP1174001B1 Bending- wave panel loudspeakers
08/27/2003EP1044584A4 Mechanical acoustic crossover network and transducer therefor
08/27/2003CN2569479Y Closing magnetic path structure of speaker
08/27/2003CN2569478Y Horn
08/27/2003CN2569477Y Low sound field feedback speaker for radio communication
08/27/2003CN1439235A Low profile speaker and system
08/27/2003CN1438820A Loud-speaker and manufacturing method
08/27/2003CN1119918C Double-coil double-magnet gap transducer
08/26/2003US6611606 Compact high performance speaker
08/26/2003US6611605 Speaker having a device capable of generating sound and vibration
08/26/2003US6611604 Ultra low frequency transducer and loud speaker comprising same
08/21/2003WO2003069953A1 Moving-coil electrodynamic motor particularly for a loudspeaker, loudspeaker and corresponding pole piece
08/21/2003US20030156732 Speaker and method of manufacturing the same
08/21/2003US20030156731 Speaker having spacer ring inside frame
08/20/2003EP1336320A1 Bone conduction vibrator
08/20/2003CN2567900Y Mobile phone hand-free receiving loudspeaker
08/20/2003CN2567899Y 改进型无线耳机 Improved wireless headphones
08/20/2003CN2567898Y Loudspeaker with improved magnetic circuit structure
08/20/2003CN1437427A New-type loudspeaker system
08/19/2003US6608541 Electromagnetic actuator
08/14/2003WO2003067923A2 Transducer motor/generator assembly
08/14/2003WO2002089522A3 Loudspeaker
08/14/2003US20030152246 Magnetic circuit and loudspeaker using the same
08/13/2003CN2566565Y Structure-improved horn
08/13/2003CN1436146A Method and device for picking up stacks of blanks
08/12/2003US6606390 Loudspeakers
08/12/2003US6604271 Process for processing a conductive damper for use in speaker
08/07/2003WO2003065760A2 Low profile audio speaker
08/07/2003US20030146825 Mobile terminal with electromagnetic actuator
08/06/2003CN2565229Y Speech storage readout apparatus
08/05/2003US6601645 Speaker heat sink
07/2003
07/31/2003WO2003063545A1 Flexible diaphragm with integrated coil
07/31/2003WO2002019763A3 Loudspeaker with a diaphragm having integral vent bores
07/30/2003EP1153526B1 Bending wave panel-form loudspeaker
07/30/2003EP1078553B1 Sound reproduction device working according to the bending wave principle
07/30/2003CN2563877Y Moving-iron type momentum transducer
07/30/2003CN2563876Y 录音电路 Recording Circuit
07/30/2003CN1433246A Method and structure of combining voice coil and vibrating membrane in receiver
07/29/2003US6600399 Transducer motor/generator assembly
07/24/2003WO2003061338A1 Light exhibiting speaker
07/24/2003WO2003061337A1 Magnetic circuit for loudspeaker and loudspeaker comprising it
07/24/2003US20030138125 Concentric magnetic configuration for loudspeakers
07/24/2003US20030137406 Electromagnetic induction type actuator and portable communications device
07/24/2003DE10207561C1 Loudspeaker for HF audio range has elastic centring device coupled to membrane or oscillating coil system at one side and to magnetic system at other side
07/23/2003EP1329130A1 Compact high performance speaker
07/23/2003CN2562538Y Thin horn drivers
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