Patents
Sitemap › H04 - Electric communication technique › H04R - Loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers; Deaf-aid sets; Public address systems › H04R 1 - Details of transducers
Patents for H04R 1 - Details of transducers (42,173)
03/2005
03/31/2005DE10304550B4 Lautsprecherabdeckung und Verfahren zu ihrer Herstellung Speaker cover and processes for their preparation
03/31/2005CA2539228A1 Audio loudspeaker enclosure
03/30/2005EP1519621A1 Loudspeaker
03/30/2005EP1519620A2 Digital audio player
03/30/2005EP1519617A2 Acoustic device
03/30/2005EP1518756A1 Electro-acoustic transducer for a hands free device
03/30/2005EP1518442A1 Piezoelectric biological sounds monitor with printed circuit board
03/30/2005EP1518440A1 Headset
03/30/2005EP1518167A1 Device for processing demonstration signals and demonstration control data
03/30/2005CN2689634Y Loundspeaker boxes
03/30/2005CN2689633Y Planar loundspeaker boxes
03/30/2005CN1602649A Signal processing device for acoustic transducer array
03/30/2005CN1602648A Loudspeakers
03/30/2005CN1602117A Loudspeaker device
03/30/2005CN1602115A Reflex speaker
03/30/2005CN1602114A Bearing device and clamp having same
03/30/2005CN1602113A Acoustic device
03/30/2005CN1601649A 数字音频播放器 Digital Audio Player
03/30/2005CN1601302A Novel composite earthquake demodulator
03/30/2005CN1601301A Ocean earthquake demodulator
03/30/2005CN1195389C High-strength focused fiber hydraophone for supersonic measurement
03/24/2005WO2005027567A2 Headphone with behind-the-head headband
03/24/2005WO2005027514A1 Digital loudspeaker
03/24/2005WO2005009072A3 Microphone comprising integral multi-level quantizer and single-bit conversion means
03/24/2005WO2004093488A3 Directional speakers
03/24/2005US20050065624 Method and system for managing rights for digital music
03/24/2005US20050063561 Dual microphone assembly for mask
03/24/2005US20050063560 Microphone shield system
03/24/2005US20050063559 Apparatus and method for a speaker mounting system including a lightpipe and a rotating base stand
03/24/2005US20050063557 Directional capacitor microphone
03/24/2005US20050063555 Electroacoustical transducing
03/24/2005US20050063549 Multi-function headphone system and method
03/24/2005US20050061770 MEMS digital-to-acoustic transducer with error cancellation
03/24/2005DE102004041635A1 Earpiece sound transmit receive unit has speaker and microphone back to back in sound transmitting foam capsule
03/23/2005EP1517582A1 Loudspeaker edge
03/23/2005EP1517581A2 A method for optimal microphone array design under uniform acoustic coupling constraints
03/23/2005EP1517580A2 Electroacoustical transducing
03/23/2005EP1516510A1 Low frequency loudspecker enclosure with configurable directivity
03/23/2005EP0937356B1 Radiotelephone having a non-resonant wave guide acoustically coupled to a microphone
03/23/2005CN2688008Y Colour luminous earphone
03/23/2005CN2688007Y Ceiling type voice box
03/23/2005CN2688005Y Voice direction propagation device
03/23/2005CN2688004Y Multi-mode electric-energy supply device for wireless earphone
03/23/2005CN2688003Y Wire-wireless two-purpose microphone
03/23/2005CN1599510A Electroacoustical transducing
03/23/2005CN1599509A Ceramic ring pad with hole
03/23/2005CN1194522C Mounting structure of telephone mouthpiece
03/23/2005CN1194520C Loudspeaker for electronic instrument
03/22/2005US6870943 Ceiling loudspeaker
03/22/2005US6870942 Loudspeaker for line array sound system
03/22/2005US6870941 Dipole radiating dynamic speaker
03/22/2005US6870938 Semiconductor electret capacitor microphone
03/17/2005WO2005025268A1 Noise damping headset with a throat microphone
03/17/2005WO2005025267A1 Audio apparatus
03/17/2005WO2005025266A1 Cone forward loudspeaker assembly
03/17/2005WO2005025265A1 Bone-conduction speaker device
03/17/2005WO2005000158A9 Acoustically transparent debris barrier for audio transducers
03/17/2005US20050058316 Headphone with cord winder devices
03/17/2005US20050058315 Weather resistant porting
03/17/2005US20050058314 Surround sound positioning tower system and method
03/17/2005US20050058310 Audio player with decorative sealed vessel
03/17/2005US20050058308 Switching unit for a microphone
03/17/2005US20050058300 Communication apparatus
03/17/2005US20050058298 Transducer for sensing body sounds
03/17/2005US20050057925 Earpiece light
03/17/2005DE10337181A1 Mikrofonanordnung Microphone array
03/17/2005DE10259543B4 Richtlautsprecher Directional loudspeaker
03/17/2005CA2537460A1 Audio apparatus
03/17/2005CA2537201A1 Cone forward loudspeaker assembly
03/16/2005EP1515585A2 Ported loudspeaker system and method with reduced air turbulence
03/16/2005EP1515584A1 Loudspeaker and corresponding loudspeaker enclosure
03/16/2005EP1515582A1 Dynamic electroacoustic converter, in particular small speaker
03/16/2005EP1515581A2 Speaker housing
03/16/2005EP1515580A1 Bone conductive speaker
03/16/2005EP1300047B1 Filter
03/16/2005EP0976200A4 Vehicular loudspeaker system
03/16/2005EP0886948B1 Michrophone in a speech communicator
03/16/2005CN2686261Y Scroll type one-way telescopic USB loudspeaker box
03/16/2005CN2686260Y Scroll type one-way telescopic USB network microphone
03/16/2005CN2686259Y Diffusion horn box
03/16/2005CN2686258Y USB multifunction network microphone
03/16/2005CN1596032A Dynamic electroacoustic converter, in particular small speaker
03/16/2005CN1193643C Headphone
03/16/2005CA2479157A1 Heating apparatus using surface acoustic wave
03/15/2005US6868164 Head phone device
03/15/2005US6868043 Beam broadening with maximum power in array transducers
03/15/2005US6866219 Wire collecting device
03/15/2005US6866116 Structure for quick-assembly cabinet
03/10/2005WO2005022950A1 Speaker device
03/10/2005WO2005022949A1 Audio communication unit
03/10/2005WO2005022948A2 Tool-less frame fastening system having angled speaker assembly, snap-in and lock baffle, and post extension and angling system
03/10/2005WO2004082324A3 Transducer asembly with modifiable buffer circuit and method for adjusting thereof
03/10/2005US20050053253 Cone forward loudspeaker assembly
03/10/2005US20050053247 Audio speaker crossover having two or more filter housings
03/10/2005US20050053245 5.1 Channel signal output mixer circuit for earphone
03/10/2005US20050052724 Opto-acoustoelectric device and methods for analyzing mechanical vibration and sound
03/10/2005US20050051022 Detection of sound waves produced by a musical instrument
03/10/2005US20050051019 Stringed instrument
03/10/2005DE202004019637U1 Rapidly adjustable boom for microphone stand, music stand etc., is held in position on pole of stand by frictional force arising from slight tilt of boom
03/10/2005DE202004018622U1 Intelligent, controllable amplifier for hand-held microphone, has electronic components required for one-man operation
1 ... 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 ... 422