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)
11/1999
11/25/1999WO1999060819A1 Sound reproduction device working according to the bending wave principle
11/25/1999WO1999060816A1 Head worn entertainment and/or communication device
11/25/1999WO1999060795A2 Apparatus for operation in an on-ear mode and an off-ear mode
11/25/1999WO1999059840A1 Vehicle door with a wall having a loudspeaker
11/25/1999CA2332841A1 Head worn entertainment and/or communication device
11/24/1999EP0958669A1 Screening device and electroacoustic equipment provided with this device
11/24/1999EP0754359B1 Elastomeric connector
11/24/1999CN1236518A Radiotelephone having a non-resonant wave guide acoustically coupling to amicrophone
11/24/1999CN1236466A Compact horn speaker
11/24/1999CN1236284A Ear inserting type transmitter receiver
11/24/1999CN1236251A Portable electronic device with speaker assembly
11/24/1999CN1046837C Loudspeaker system
11/23/1999US5991727 Voice reproducing apparatus for personal use
11/23/1999US5991421 Radially expanding multiple flat-surfaced waveguide device
11/23/1999US5988812 Headphone eyeglasses
11/23/1999US5988585 Microphone mount
11/23/1999US5988314 Sound output system
11/18/1999WO1999059378A1 High power ultrasonic transducer
11/18/1999WO1999048326A8 Telephone with means for enhancing the low-frequency response
11/18/1999DE19821862A1 Flat panel loudspeaker
11/18/1999CA2330314A1 High power ultrasonic transducer
11/17/1999EP0957657A1 Speaker device
11/17/1999EP0890293A4 Sampled chamber transducer with enhanced low frequency response
11/17/1999EP0885546A4 Wearable audio system with enhanced performance
11/17/1999EP0852105A4 Earphones with eyeglass attachments
11/17/1999CN1235724A Telephone having sealed acoustical passageway through flip cover hinge
11/17/1999CN1235688A Cone reflector/coupler speaker system and method
11/17/1999CN1235464A Structure of mobile telephone
11/16/1999US5987147 Sound collector
11/16/1999US5984224 Cable-spooling casing for earphones
11/16/1999US5984145 Body mounted water dispensing system
11/16/1999US5983399 Hearing protection device
11/16/1999CA2153171C Sound localization system for teleconferencing using self-steering microphone arrays
11/11/1999WO1999057937A1 Headset control system for operating a microcontroller bassed device
11/11/1999WO1999057893A1 Vibration preventing device for use in a television
11/11/1999DE19818925A1 Electrical communication device for audio signals, e.g. Speech signals
11/10/1999EP0955025A1 Selective nonlinear attenuating earplug
11/10/1999EP0847661B1 Acoustic device
11/10/1999CN2348532Y Speaker of natural stone material
11/10/1999CN1234955A Loudspeaker system having bass-reflex port
11/10/1999CN1234895A Noise cancellation and noise reduction apparatus
11/10/1999CN1234859A Device for damping of vibrations between objects
11/10/1999CN1234715A Digital electroacoustic transducer
11/09/1999US5982764 Time-multiplexed short-range magnetic communications
11/09/1999US5980057 Speaker light unit connected to conventional electrical light socket
11/09/1999US5979591 Collapsible portable speaker enclosure
11/09/1999US5979590 Sound bar assembly for motor vehicles
11/04/1999WO1999056512A1 Apparatus for the redistribution of acoustic energy
11/04/1999WO1999055262A1 Selective nonlinear attenuating earplug
11/04/1999WO1999055259A1 Hearing coupler shells of soft pliable thermoplastic material
11/04/1999DE19818789A1 Loudspeaker arrangement enables a highly room-independent and favorable musical image to be produced
11/04/1999CA2330588A1 Hearing coupler shells of soft pliable thermoplastic material
11/03/1999EP0953275A1 Electroacoustic transducers comprising vibrating panels
11/03/1999EP0953274A1 Light sensitive switch with microphone
11/03/1999EP0809920A4 Underwater acoustic projector
11/03/1999EP0688199B1 Cover for a sealing ring of an earmuff
11/03/1999CN2347325Y Luminous device of microphone
11/02/1999US5975236 Speaker assembly
11/02/1999US5974890 Composite probe apparatus
11/02/1999US5974655 Method of mounting loudspeakers and a loudspeaker mounting
11/02/1999CA2205722C Differential microphone assembly with passive suppression of resonances
11/02/1999CA2181555C A modular tweeter
10/1999
10/28/1999WO1999055117A1 Electro-acoustical transducer
10/28/1999WO1999032017A3 A system and method for optimizing environments to facilitate agent processes
10/28/1999DE19818710A1 Greetings card, medallion or gift with sound and audio replay
10/27/1999EP0952756A2 Ear inserting type transmitter-receiver
10/27/1999EP0951797A1 Noise control device
10/27/1999CN2346131Y Electret anti-noise acoustical pick-up
10/26/1999US5974157 Small electroacoustic transducer
10/21/1999CA2268682A1 Ear inserting type transmitter-receiver
10/20/1999EP0951200A2 Tubular loudspeaker enclosure
10/20/1999CN2344935Y Circuit lead connecting socket for microphone
10/20/1999CN2344934Y Supra-aural earphone microphone
10/20/1999CN1232362A Auricular device for hypoacusic patients
10/19/1999US5970161 Speaker system for a video monitor and a video monitor equipped with a speaker system
10/19/1999US5970160 Earmuff
10/19/1999US5970159 Video monitor with shielded microphone
10/19/1999US5970158 Compact horn speaker
10/19/1999US5970157 Press-fit ear wax barrier
10/19/1999US5970155 Headset for hearing protectors
10/19/1999US5969838 System for attenuation of noise
10/19/1999US5967585 Retrofittable kick panel for a vehicle
10/14/1999WO1999052324A1 Acoustic device relying on bending wave action
10/14/1999WO1999052323A1 Folded sagnac sensor array
10/14/1999WO1999052322A1 Acoustic device
10/14/1999WO1999013681B1 Aerogels, piezoelectric devices, and uses therefor
10/14/1999DE19848242A1 Loudspeaker system with watertight cover, e.g. for mounting on a car door
10/14/1999DE19815751A1 Loudspeaker with housing made of several components has decoupling of resonant frequencies of chassis and housing achieved without increasing material thickness or costs and without special shaping of housing
10/14/1999CA2326193A1 Acoustic device
10/14/1999CA2326161A1 Acoustic device relying on bending wave action
10/13/1999EP0948856A1 Telephone handset, cordless telephone or mobile telephone
10/13/1999CN2343728Y Microphone switch structure
10/13/1999CN2343727Y Microphone
10/13/1999CN1231467A Electro-acoustic transducer
10/12/1999US5966453 Speaker system for use in an automobile vehicle
10/12/1999CA2188260C Concha headset stabilizer
10/07/1999WO1999051058A1 Disposable sleeve assembly for sound control device and container therefor
10/07/1999WO1999050706A1 Spectacles framework with earphone bars
10/07/1999WO1999049787A1 Ultrasonic camera
10/07/1999WO1999025152A3 Interactive devices and methods
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