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)
12/1996
12/11/1996EP0747080A1 Brain wave inducing device
12/11/1996EP0746958A1 Sound-reproducing apparatus comprising an acoustic horn, and acoustic horn for use in the apparatus
12/11/1996EP0476082B1 Device for improving bass reproduction in loudspeaker systems with closed housings
12/11/1996CN2242558Y Casted metal loudspeaker box
12/11/1996CN2242557Y Double tube like loudspeaker box
12/10/1996US5583944 Speaker
12/10/1996US5583324 Vibration damping device
12/05/1996WO1996038834A1 Acoustic horn transducer with a conic type diffuser having an exponential profile in wood
12/05/1996CA2222578A1 Acoustic horn transducer with a conic type diffuser having an exponential profile in wood
12/04/1996EP0745311A1 Housing with integral acoustic chamber and anti-rattle printed circuit board supports
12/04/1996CN2241961Y No-top plate sound enclosure base support for audio
12/04/1996CN2241960Y Noise-removing device for mouthpiece of microphone
12/04/1996CN1137217A Speaker system and making method thereof
12/03/1996US5581627 Convertible cover headphones
12/03/1996US5581623 Electroacoustic transducer and method of fabricating the same
12/03/1996US5581622 Head set
12/03/1996US5581620 Signal processing apparatus
11/1996
11/27/1996EP0744880A1 Loudspeaker device and television receiver using the device
11/27/1996EP0334949B1 Speaker system
11/26/1996US5579400 Headphones
11/26/1996US5579398 Electro-acoustic transducer
11/26/1996US5579046 Voice filter system for a video camera
11/26/1996US5577704 Adjustable support for small enclosure
11/26/1996US5577506 Catheter probe having a fixed acoustic reflector for full-circle imaging
11/21/1996WO1996037085A1 Loudspeaker device for video monitor and video monitor with loudspeaker device
11/19/1996US5576522 Tube-annexed speaker cabinet
11/13/1996EP0742678A2 Noise canceling gradient microphone assembly
11/13/1996EP0741940A1 Method and apparatus for underwater communication
11/13/1996EP0741899A1 Polyhedral directional transducer array
11/13/1996CN2240221Y Ceramic speaker
11/12/1996US5574796 Loudspeaker installing
11/12/1996US5574795 Headphone apparatus
11/12/1996US5574794 Microphone assembly for adhesive attachment to a vibratory surface
11/12/1996US5574793 Automated conference system
11/06/1996CN2239687Y Power frequency divider
11/05/1996US5572487 High pressure, high frequency reciprocal transducer
10/1996
10/31/1996WO1996034261A1 Arrangement for damping sound and a method for manufacturing the arrangement
10/31/1996CA2219785A1 Arrangement for damping sound and a method for manufacturing the arrangement
10/30/1996EP0627087A4 Hydrophone arrangement.
10/30/1996CN2239114Y Motion feedback phase-inversion active speaker
10/30/1996CN1134651A Loudspeaker
10/24/1996WO1996033591A1 An acoustical audio system for producing three dimensional sound image
10/24/1996DE19613888A1 Loudspeaker for voice and music reproduction
10/24/1996DE19515313A1 Stand acting as equipment support e.g. for loudspeaker box
10/24/1996CA2218608A1 An acoustical audio system for producing three dimensional sound image
10/23/1996EP0738454A1 Apparatus comprising a baffle and a loudspeaker, and loudspeaker for use in the apparatus
10/23/1996CN2238514Y Tightener for cable joint of microphone
10/23/1996CN1134014A Recording and/or reproducing apparatus
10/22/1996US5568562 Releasably mounted compound loudspeakers
10/22/1996US5568160 Planar horn array microwave antenna
10/17/1996WO1996032805A1 Method and apparatus for transmitting coded audio signals through a transmission channel with limited bandwidth
10/17/1996WO1996032776A2 Signal amplification system with automatic equalizer
10/15/1996US5566242 Mechanism for a speaker assembly
10/15/1996US5566241 Method and apparatus for presentation of on-line directional sound
10/15/1996US5566135 Digital transducer
10/15/1996US5565840 Tactile sensation generator
10/15/1996US5565659 Speaker cover grille
10/15/1996US5565628 Ultrasonic transducer with backing layer and acoustic matching layer having electrorheological fluid therein
10/10/1996WO1996031994A1 Microphone mounting arm assembly
10/10/1996WO1996031870A1 Piezo-electric ultrasound transducer
10/10/1996DE19512417A1 Piezoelektrischer Ultraschallwandler Piezoelectric ultrasonic transducer
10/08/1996US5563954 Microphone apparatus
10/08/1996US5563951 For use with a communication device
10/08/1996US5562096 Ultrasonic transducer probe with axisymmetric lens
10/05/1996CA2146283A1 Executive m-1
10/03/1996WO1996031106A1 Helmholtz resonator loudspeaker
10/03/1996WO1996031105A1 Low frequency audio coupler and method of coupling
10/03/1996WO1996031086A1 Improvements in or relating to loudspeakers
10/03/1996WO1996031083A1 Compact full-range loudspeaker system
10/03/1996CA2216829A1 Compact full-range loudspeaker system
10/01/1996US5561737 Voice actuated switching system
10/01/1996US5561717 Loudspeaker system
10/01/1996US5561275 Headset for electronic stethoscope
09/1996
09/26/1996WO1996029842A1 Omni-directional loudspeaker system
09/26/1996DE19534741A1 Portable personal computer
09/26/1996CA2215802A1 Omni-directional loudspeaker system
09/25/1996EP0733217A1 Hydrophone carrier
09/25/1996CN1131856A Baffled mirophone assembly
09/24/1996US5559882 Sanitary device for use with telephones
09/19/1996WO1996028949A1 Loudspeaker
09/18/1996EP0732037A1 High gain acoustic transducer
09/18/1996CN1131316A Recording and/or reproducing apparatus
09/17/1996US5555887 Ultrasonic transducer probe with heat dissipating lens
09/17/1996CA2057206C Microphone mounting for a person's neck
09/12/1996WO1996027999A1 Loudspeaker device
09/12/1996DE19508099A1 Electronic tuning system for musical stringed instruments e.g. violin cello
09/12/1996DE19507850A1 Amplifier for electric musical instrument
09/11/1996EP0730804A1 Telephone communication headset
09/11/1996EP0606387B1 System for sound pick-up, apparatus for sound pick-up and reproduction
09/10/1996US5555554 Vented headset speaker
09/10/1996US5554339 Process for the manufacture of wholly microfabricated biosensors
09/04/1996EP0646307B1 Water-resistant transducer housing with hydrophobic vent
09/04/1996CN2234672Y Banded large power HF loudspeaker
09/04/1996CN1130458A Sound generating device
09/03/1996US5553147 Stereophonic reproduction method and apparatus
09/03/1996US5552569 For a loudspeaker
08/1996
08/29/1996WO1996026623A1 Electro-acoustic communication device
08/28/1996EP0729286A2 Speaker cover grille
08/28/1996CN2234164Y Voltage-division and transforming type loudspeaker casing
08/28/1996CN1129891A Miniature speeching body
1 ... 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 ... 422