| Patents for H04R 1 - Details of transducers (42,173) |
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| 09/08/2004 | EP1455552A2 Microphone array, method and apparatus for forming constant directivity beams using the same, and method and apparatus for estimating acoustic source direction using the same |
| 09/08/2004 | EP1455487A1 Bluetooth-Headset |
| 09/08/2004 | EP1386518B1 Two-way communication device |
| 09/08/2004 | EP1057291A4 System and method for factoring a merged wave field into independent components |
| 09/08/2004 | EP1036485B1 Device having two coaxially disposed bodies which are movable relative to one another along a translation axis |
| 09/08/2004 | CN2640172Y Noise control type loudspeaker box |
| 09/08/2004 | CN2640171Y Ball-type acoustical generator of 360 degrees, omnibearing high-pitch, superhigh-pitch |
| 09/08/2004 | CN2640170Y Assembling and disassembling type earphone |
| 09/08/2004 | CN2640169Y Desk-type microphone |
| 09/08/2004 | CN2640168Y Rotary protective stopper structure |
| 09/08/2004 | CN1528104A Electroacoustic conversion of audio signals, especially voice signals |
| 09/08/2004 | CN1166250C Earphone |
| 09/07/2004 | US6788798 Method and arrangement for improving leak tolerance of an earpiece |
| 09/07/2004 | US6788797 Headphone accessory |
| 09/07/2004 | US6788796 Differential microphone |
| 09/07/2004 | US6788793 Speaker system for an electronic device |
| 09/07/2004 | US6788791 Delay network microphones with harmonic nesting |
| 09/02/2004 | WO2004075601A1 Sound beam loudspeaker system |
| 09/02/2004 | WO2004075159A2 Disposable sanitary cover for audio mouthpieces and receivers |
| 09/02/2004 | US20040170298 Case for containing electrical instrument |
| 09/02/2004 | US20040170295 Combination speaker enclosure mounting structure |
| 09/02/2004 | US20040170294 Headphone |
| 09/02/2004 | US20040170293 Vehicle accessory microphone |
| 09/02/2004 | US20040170292 Loudspeaker with direct emission and optimised radiation |
| 09/02/2004 | US20040170291 Mobile device with improved acoustic porting |
| 09/02/2004 | US20040170284 Sound reinforcement system having an echo suppressor and loudspeaker beamformer |
| 09/02/2004 | US20040170282 Sound simulator and sound simulating method |
| 09/02/2004 | US20040170272 Sound guide for speaker and handset for mobile communication using the same |
| 09/02/2004 | US20040170086 Membrane-less microphone and/or speaker capable of functioning in a very wide range of frequencies and with much less distortions |
| 09/02/2004 | DE10318561B3 Arrangement for sending/receiving sound waves propagating in water has transformers whose second winding voltages cancel in send mode; third winding of second transformer is shorted in receive mode |
| 09/02/2004 | DE10255794B3 Akustische Schallführung im Fahrzeug Acoustic sound conduction in the vehicle |
| 09/01/2004 | EP1453354A1 Electroacoustic transducer and process for producing the same |
| 09/01/2004 | EP1453349A2 Self-calibration of a microphone array |
| 09/01/2004 | EP1453348A1 Self-calibration of microphone arrays |
| 09/01/2004 | EP1453347A1 Loudspeaker system |
| 09/01/2004 | EP1453213A2 Communication apparatus with antenna |
| 09/01/2004 | EP1453212A2 Electronic apparatus and system control method for the electronic apparatus |
| 09/01/2004 | EP1452067A2 Directional sound acquisition |
| 09/01/2004 | EP1452066A1 Bass-reflex loudspeaker system and method of manufacturing the same |
| 09/01/2004 | EP1161282B1 Oxygen inhaler mask with sound pickup device |
| 09/01/2004 | EP0880502B1 Aminoheterocyclic derivatives as antithrombotic or anticoagulant agents |
| 09/01/2004 | CN2638381Y Mid-mounted audio horn device |
| 09/01/2004 | CN2638380Y Radio earphone with identification function |
| 09/01/2004 | CN2638379Y Electroluminescent voice box |
| 09/01/2004 | CN2638378Y Earphone plug-in socket |
| 09/01/2004 | CN1526259A Acoustic device |
| 09/01/2004 | CN1526257A Programmable headset, programming apparatus and method |
| 09/01/2004 | CN1525790A Electroacoustic transducer |
| 09/01/2004 | CN1525788A Case for containing electrical instrument |
| 09/01/2004 | CN1525278A Electronic apparatus and system control method for the electronic apparatus |
| 09/01/2004 | CN1165203C Anti-noise-electret pick-up |
| 09/01/2004 | CN1165201C Micro loudspeaker |
| 09/01/2004 | CN1164341C Focusing ultrasonic source |
| 08/31/2004 | US6785397 Electro-acoustic converter |
| 08/31/2004 | US6785396 Earphone |
| 08/31/2004 | US6785395 Speaker configuration for a portable electronic device |
| 08/31/2004 | US6785393 Audio transducers |
| 08/31/2004 | US6785358 Voice activated diagnostic imaging control user interface |
| 08/26/2004 | WO2004073350A1 Device for fitting a space-designing means with a loudspeaker function |
| 08/26/2004 | US20040166701 Mechanical-contact adapter |
| 08/26/2004 | US20040165745 Speaker assembly for a television cabinet |
| 08/26/2004 | US20040165744 Speaker system having a processing circuitry |
| 08/26/2004 | US20040165739 Transducer assembly apparatus |
| 08/26/2004 | US20040165738 Speaker assembly having plural drivers |
| 08/26/2004 | US20040165735 Self-calibration of array microphones |
| 08/26/2004 | US20040165720 Two-way voice communication device having external acoustic noise reduction |
| 08/26/2004 | US20040164207 Loudspeaker mounting mechanism |
| 08/26/2004 | US20040164073 Cooking apparatus equipped with audio player |
| 08/26/2004 | DE10318512B3 Partition in road vehicle for separating luggage space from passenger cabin, has membranes carrying low-frequency loudspeakers partially covered with protective tongues |
| 08/26/2004 | DE10311083B3 Loudspeaker integrated with housing for mobile telephone has piezoelectric actuator at one end of lid on housing exciting bending waves in lid |
| 08/25/2004 | EP1450576A1 Transmitter/receiver worn on strap of mask or cap |
| 08/25/2004 | EP1450324A1 Pos system, pos server, shop terminal, sale managing method, and recorded medium |
| 08/25/2004 | EP1450105A2 Cooking apparatus equipped with audio player |
| 08/25/2004 | EP1449405A2 Modular headset for cellphone or mp3 player |
| 08/25/2004 | EP1449268A2 Radial power megasonic transducer |
| 08/25/2004 | CN2636568Y Active plane artistic voice box |
| 08/25/2004 | CN2636560Y Acoustic consonance amplifying voice box |
| 08/25/2004 | CN2636559Y Sanitary type handheld microphone device |
| 08/25/2004 | CN2636558Y Radio earphone possessing substituted battery module |
| 08/25/2004 | CN2636557Y Earphone capable of dissipating fragrance |
| 08/25/2004 | CN2636556Y Health care insert earphone |
| 08/25/2004 | CN1523927A Headphone |
| 08/25/2004 | CN1523926A Headphone |
| 08/25/2004 | CN1523794A Small-sized outdoor intelligent column loudspeaker with metal case |
| 08/25/2004 | CN1523292A Cooking apparatus equipped with audio player |
| 08/25/2004 | CN1164145C Method for fabricating loudspeaker suspension device |
| 08/25/2004 | CN1164144C Inertial vibrating type transducer |
| 08/25/2004 | CN1164143C Loudspeaker device |
| 08/25/2004 | CN1164142C Novel material for making sound box |
| 08/24/2004 | US6782112 Low frequency transducer enclosure |
| 08/24/2004 | US6782104 Method and device intended for the picking up of sounds, for their recording and their play-back, and reproducing the natural sensation of a sound space |
| 08/24/2004 | US6779627 Flat panel sound radiator with fire protective back box |
| 08/19/2004 | WO2004071129A2 Multimedia loudspeaker |
| 08/19/2004 | WO2004071128A2 Electrodynamic acoustic transducer |
| 08/19/2004 | WO2004056151A3 A loud-speaker system |
| 08/19/2004 | WO2004047482A3 A high intensity directional electroacoustic sound generating system for communications targeting |
| 08/19/2004 | US20040161962 Plug for speaker cables, and speaker terminal and speaker terminal system provided with them |
| 08/19/2004 | US20040161124 Speaker device |
| 08/19/2004 | US20040161104 Disposable sanitary cover for audio mouthpieces and receivers |
| 08/19/2004 | US20040160657 Electrochromic rearview mirror assembly incorporating a display/signal light |