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)
08/1996
08/27/1996US5550926 Overlap sound case
08/27/1996US5550923 Directional ear device with adaptive bandwidth and gain control
08/27/1996US5550918 Carrying case for hygienic telephone sheilds
08/22/1996WO1996025831A1 Underwater acoustic projector
08/22/1996DE19542930A1 Cordless headphone system for radio listening and with automatic disconnection of battery
08/22/1996DE19530743C1 High-performance loudspeaker housing for entertainment equipment
08/22/1996DE19505031A1 Loudspeaker box for converting audio signals into diffuse acoustic field
08/21/1996CN2233654Y Microphone protecting ring
08/21/1996CN2233653Y Board for loudspeaker material
08/21/1996CN2233652Y Combined two-way microphone
08/21/1996CN1129511A A personal hands free communications device
08/21/1996CN1129510A Loud speaker
08/21/1996CN1129389A A removable audio remote controller for a microphone
08/20/1996US5548657 Compound loudspeaker drive unit
08/20/1996US5548335 Dual directional microphone video camera having operator voice cancellation and control
08/15/1996WO1996025018A1 Microphone device
08/13/1996US5546469 Sound transducer
08/13/1996US5546468 Portable speaker and amplifier unit
08/13/1996US5546458 Handsfree communication apparatus
08/13/1996US5546360 Electrically steered acoustic lens
08/13/1996US5545859 Anti-viral acoustically transparent earphone cover
08/08/1996WO1996023462A1 Earmuff
08/08/1996WO1996023443A1 Earmolds for two-way communication devices
08/07/1996EP0725540A2 Speaker system for television set
08/07/1996EP0724761A1 An active noise cancellation apparatus for a motor vehicle
08/07/1996CN1128482A Earphone
08/06/1996US5544253 Earphone assembly
08/01/1996WO1996023361A1 Loudspeaker thermal management structure
07/1996
07/31/1996EP0724377A1 Press-fit ear wax barrier
07/31/1996EP0724243A1 Apparatus and method for producing structural and acoustic vibrations
07/31/1996EP0723733A1 Microphone system for teleconferencing system
07/31/1996CN2232180Y Combined microphone
07/31/1996CN1127975A Audio amplifier
07/30/1996US5540248 Fluidic sound amplification system
07/25/1996DE19527499C1 Loudspeaker with conical reflector having median point of inflection e.g. for stereo audio equipment
07/24/1996EP0722650A1 Apparatus including a loudspeaker unit, loudspeaker unit, and housing for a loudspeaker unit
07/24/1996EP0709017A4 Headphone assembly
07/24/1996CN2231844Y Radio microphone capable of extending function
07/23/1996US5539834 Baffled microphone assembly
07/23/1996CA2054832C Ear-protection cup for ear muffs or headphones
07/23/1996CA2032080C Directional microphone assembly
07/23/1996CA2021994C Noise cancellation headset
07/17/1996EP0722260A1 Method and device for feeling acoustic vibration
07/17/1996CN1126936A Ergonomic ear mounted headset
07/17/1996CN1126911A Portable electronic device with associated earphone
07/16/1996US5537668 Audio signal reproducing device
07/16/1996US5537667 Swimming training device with removable receiver disposed therein
07/16/1996US5537481 Horn driver
07/16/1996US5537480 Sound output system
07/16/1996US5537479 Dual-driver bass speaker with acoustic reduction of out-of-phase and electronic reduction of in-phase distortion harmonics
07/16/1996US5536171 Synthesis-based speech training system and method
07/12/1996CA2139964A1 Self monitoring speaker system
07/11/1996WO1996021342A1 Multiple chamber loudspeaker system
07/11/1996WO1996021307A1 Portable communication device
07/10/1996EP0720810A1 Rotary low-frequency sound reproducing apparatus and method
07/10/1996CN2231001Y Speaker box
07/09/1996US5535285 Fixation of speaker to a monitor
07/09/1996US5535284 Woofer speaker and acoustically coupled sub-woofer speaker system
07/04/1996WO1996020576A1 Sound-reproducing apparatus comprising an acoustic horn, and acoustic horn for use in the apparatus
07/04/1996DE3834669A1 Acoustic insulating device for acoustic antenna in marine craft esp. submarines
07/04/1996DE19521124C1 Termination device for loudspeaker box
07/03/1996EP0720415A2 Speaker component, speaker, and its manufacturing method
07/03/1996CN2230493Y Separable hand-held microphone group
07/03/1996CN2230492Y Hand-held microphone with pluging hole
07/03/1996CN2230491Y Improved safety headphone
07/03/1996CN1126020A Stereophonic reproduction method and apparatus
07/02/1996US5533137 Earphones
07/02/1996US5533132 Loudspeaker thermal management structure
07/02/1996US5533131 Anti-eavesdropping device
07/02/1996US5533122 Articulated headset support
07/02/1996US5532438 Acoustic imaging sound dome
07/02/1996US5532437 For a motor vehicle
06/1996
06/26/1996EP0719070A1 Sound pick-up device, comprising a video system for the adjustment of parameters and process for adjusting
06/26/1996EP0719018A1 Transmitting/receiving apparatus for use in telecommunications
06/26/1996EP0718818A2 Ultrasonic energy apparatus
06/26/1996EP0718817A2 Transducer device
06/26/1996EP0718640A2 Towed array
06/26/1996EP0717916A1 A personal hands free communications device
06/26/1996EP0547138B1 Noise-cancelling handset
06/26/1996CN1125378A Loudspeaker system of TV
06/19/1996EP0716799A1 Computer visual display monitor with integral stereo speaker and directional microphone and method for construction
06/13/1996DE4443559A1 Size-reducible housing e.g. for stage monitor loudspeakers
06/13/1996DE19518461C1 Unterwasser-Schleppantenne Underwater towed antenna
06/12/1996EP0716291A2 A sensor and a method for measuring distances to, and/or physical properties of,a medium
06/12/1996EP0715801A1 Airborne sensor for listening to acoustic signals
06/12/1996CN2229123Y Earphone with connector
06/11/1996US5526456 Multiple-driver single horn loud speaker
06/11/1996US5526433 Signal processing system
06/11/1996US5526430 Pressure gradient type microphone apparatus with acoustic terminals provided by acoustic passages
06/11/1996US5526064 Cabinet molded in resin
06/11/1996US5525767 High-performance sound imaging system
06/05/1996EP0714590A1 Loudspeaker
06/05/1996EP0542784B1 Hydraulic lever actuator
06/05/1996CN2228696Y Super high-emulation speaker cabinet
06/05/1996CN1124002A Infrared wireless microphone
06/05/1996CN1123964A Infrared wireless microphone receiver
06/04/1996US5524062 Speaker system for a televison set
06/04/1996US5524059 Sound acquisition method and system, and sound acquisition and reproduction apparatus
06/04/1996US5523524 Double chamber bass reflex box
05/1996
05/30/1996WO1996016498A1 A flexible microphone boom
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