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)
05/1996
05/30/1996CA2136922A1 Dolby stereo sound reproducing system using speakers with pyramidal cabinets
05/28/1996US5521885 Hydrophone arrangement
05/28/1996US5521635 Voice filter system for a video camera
05/23/1996WO1996015646A1 Noise cancellation headset for use with stand or worn on ear
05/23/1996WO1996015645A1 Loudspeaker-lamp combination
05/23/1996WO1996015541A1 Noise cancellation apparatus
05/23/1996WO1996015376A1 Fluidic sound amplification system
05/23/1996DE19535198A1 Microphone stand
05/23/1996CA2204115A1 Noise cancellation headset for use with stand or worn on ear
05/22/1996EP0712758A1 Water resistant receptacle for a loudspeaker in a vehicle
05/22/1996EP0650656B1 Loudspeaker
05/22/1996CN2227898Y High efficiency coaxial annular phase-inverting Hi-Fi speaker
05/22/1996CN2227897Y Fixed mechanism for mic steel net and sponge pad
05/21/1996US5519783 Headphone assembly
05/21/1996US5519782 Headphone
05/21/1996CA2054521C Speaker front sheet
05/17/1996WO1996014723A1 Loudspeaker system with controlled directional sensitivity
05/17/1996WO1996014722A1 Apparatus comprising a baffle and a loudspeaker, and loudspeaker for use in the apparatus
05/15/1996DE4440583A1 Lautsprecher-Leuchten-Kombination Speaker Light Combination
05/15/1996CN1122561A Speaker apparatus
05/14/1996US5517574 Dual function transducer housing
05/14/1996US5517573 Ported loudspeaker system and method with reduced air turbulence
05/14/1996US5517570 Sound reproducing array processor system
05/09/1996WO1996013958A1 Global sound microphone system
05/09/1996DE4439146A1 Hands-free telephone for work-place or use with personal computer, video conference etc.
05/08/1996EP0711096A1 Sound generating device
05/08/1996EP0711095A2 Baffled microphone assembly
05/08/1996EP0710427A1 Sound pick-up and reproduction apparatus and use thereof for conference calls
05/08/1996CN2226811Y Composite microphone
05/07/1996US5515445 Long-time balancing of omni microphones
05/07/1996US5514841 Reflex compression valve - divided chamber loudspeaker cabinet
05/01/1996EP0709850A2 Recording and/or reproducing apparatus
05/01/1996EP0709017A1 Headphone assembly
05/01/1996CN1121678A Loudspeaker
04/1996
04/30/1996US5513270 Speaker box
04/30/1996US5512714 Composite speaker system having a directional adjustable tweeter
04/25/1996WO1996012383A1 Multiple pulse stimulation
04/25/1996WO1996012382A1 Reduced distortion loudspeakers
04/25/1996CA2202868A1 Multiple pulse stimulation
04/24/1996EP0708578A2 Connection line
04/24/1996EP0657085B1 Microphone and loudspeaker system
04/24/1996CN1121301A Long-time balancing of omni microphones
04/23/1996US5511132 Communication device having air-borne and solid-borne transmitting and receiving devices
04/23/1996US5511130 Single diaphragm second order differential microphone assembly
04/23/1996US5509629 Stand
04/23/1996US5509417 Method and apparatus for phased array coupling ultrasonic energy into an acoustic waveguide wire
04/18/1996WO1996011558A1 Omnidirectional sound source
04/18/1996DE4436272A1 Influencing the directional characteristics of acousto-electrical receiver device with at least two microphones with different individual directional characteristics
04/17/1996EP0707403A2 Telephone mouthpiece and method for minimising wind noise
04/17/1996EP0706835A1 Method of operating an ultrasonic piezoelectric transducer and circuit arrangement for performing the method
04/10/1996EP0706301A2 Small-sized sound generator
04/10/1996EP0673587B1 An ear microphone for insertion in the ear in connection with portable telephones or radios
04/10/1996EP0672286A4 A head mounted display system.
04/10/1996CN1120298A A directional microphone system
04/10/1996CN1120297A Direction finder
04/09/1996US5506911 Radio and infrared receiving collapsible hearing device
04/09/1996US5506908 Directional microphone system
04/04/1996DE4434633A1 Woofer loudspeaker box for home use
04/03/1996EP0703741A1 Vibration isolation platform
04/03/1996CN2223877Y Outdoor voice box
04/02/1996US5504820 Television receiver with stereo speakers
04/02/1996US5504658 For a portable audio unit
04/02/1996US5504281 Perforated acoustical attenuators
03/1996
03/28/1996WO1996009695A1 A tactile sensation generator
03/28/1996WO1996009617A1 A tactile sensation generator
03/28/1996CA2200575A1 A tactile sensation generator
03/28/1996CA2200574A1 A tactile sensation generator
03/26/1996US5502772 Speaker having improved sound square, sound bank, sound angle, sound wedge and sound radiators
03/26/1996US5501329 Telephone handset cover
03/20/1996CN1118977A A bifunctional earphone set
03/19/1996US5500903 Method for vectorial noise-reduction in speech, and implementation device
03/14/1996WO1996008004A1 Directional ear device with adaptive bandwidth and gain control
03/13/1996EP0701385A2 Loudspeaker installing
03/13/1996EP0700620A1 Audio-visual arrangement and system in which such an arrangement is used
03/13/1996EP0640020B1 Low frequency sonar projector and method
03/13/1996CN2222415Y Mouthpiece arm moveable receiver-mouthpiece set
03/12/1996US5499219 Electro-acoustical transducer arrangement
03/12/1996US5498841 Dual acoustical passage stethoscope
03/12/1996US5497965 Releasable microphone stand apparatus
03/07/1996WO1996007291A1 Woofer
03/07/1996DE4445549C1 Trailing antenna for long range marine target direction detection
03/06/1996EP0700210A2 Television set speaker system
03/06/1996EP0692169A4 Unidirectional ear microphone with multiple openings
03/06/1996EP0505382B1 Coil assemblies
03/06/1996CN1118129A Electracoustic transducer and method of fabricating the same
03/06/1996CN1118104A Microphone device for wireless kara-ok with automatic accompaniment
03/06/1996CN1118099A Portable voice generating device and voice regenerating system using same
03/05/1996US5497427 Headphone
03/05/1996US5497357 Shock-resistant flextensional transducer
03/02/1996CA2127039A1 Aqualene
02/1996
02/29/1996WO1996006514A1 Ported loudspeaker system and method with reduced air turbulence
02/29/1996WO1996006513A1 Bandpass woofer and method
02/28/1996EP0698334A1 Stereophonic reproduction method and apparatus
02/28/1996CN2221274Y Sound light synchronous speaker
02/26/1996EP0720810A4 Rotary low-frequency sound reproducing apparatus and method
02/22/1996WO1996005710A1 Anti-polluting telephone device
02/22/1996WO1996005662A1 Swimming training device
02/21/1996CN2220709Y Ceramics speaker body
02/21/1996CN1117339A Loudspeaker system
02/20/1996US5493697 Communications system for the game of football including player-carried transmitter and side lines speakers for overcoming spectator noise
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