H04R 1 - Details of transducers

Patents for H04R 1 - Details of transducers (42,173)
11/1994
11/29/1994	US5369712 Speaker
11/29/1994	US5369701 Compact loudspeaker assembly
11/29/1994	US5368270 Speaker suspension device
11/24/1994	WO1994027416A1 Stereophonic reproduction method and apparatus
11/24/1994	WO1994026145A1 Vibration isolation platform
11/23/1994	EP0625864A1 Differential microphone on a portable radio telephone
11/23/1994	EP0625299A1 An electro-acoustic transducer
11/23/1994	CN2183646Y Integrated voice box
11/22/1994	US5367576 Horn speaker
11/22/1994	US5367506 Sound collecting system and sound reproducing system
11/15/1994	US5365595 Sealed microphone assembly
11/15/1994	US5365024 Acoustic lens system
11/10/1994	WO1994026075A1 Tracking platform system
11/10/1994	WO1994025957A1 Voice transmission system and method for high ambient noise conditions
11/10/1994	WO1994025835A1 Method for suppression of interferences and detector construction for measuring signals from the surface of solid substance
11/10/1994	DE4413626A1 Housing for overhead loudspeakers in motor vehicles
11/10/1994	DE4336948C1 Device for sound transduction
11/09/1994	EP0624050A2 Audio apparatus
11/09/1994	EP0624046A1 Noise-compensated hands-free communication apparatus in motor vehicles
11/09/1994	EP0624045A1 Frequency selective acoustic waveguide damping
11/09/1994	EP0623913A2 Electroacoustic transducer
11/09/1994	CN2182503Y Stereophonic cabinet
11/09/1994	CN2182502Y Mounting for head of microphone
11/08/1994	US5363444 Unidirectional ear microphone and method
11/08/1994	US5363343 Folded hydrophone array for narrow marine vehicles
11/08/1994	US5363342 High performance extended fiber optic hydrophone
11/02/1994	EP0622970A1 Voice coil and loudspeaker structure
11/02/1994	EP0622777A1 Attenuation device for the acoustic wave energy emitted by a sound source in at least one particular direction
11/01/1994	US5361380 Woofer module for use in a television set
11/01/1994	US5361378 Camcorder stereo mic/phones
11/01/1994	US5361304 Headphone assemblies
11/01/1994	US5361240 Acoustic sensor
11/01/1994	US5360959 Direct current resistance welding machine and method of controlling the same
10/1994
10/27/1994	DE4313297A1 Multiple telephone hygiene article
10/26/1994	EP0621436A2 Direction adjustable mounting fitting
10/26/1994	CN2181153Y Antiseptic microphone cover
10/26/1994	CN2181152Y Colour rotary type sound amplifier
10/25/1994	US5359664 Loudspeaker system
10/25/1994	US5359158 Ceiling-mounted loudspeaker
10/25/1994	US5359157 Contact type indirect conduction, vibrating type microphone
10/23/1994	CA2094667A1 Two-way communications earset with filter
10/19/1994	EP0620545A1 Electrical switch for an acoustical warning device
10/19/1994	EP0619934A1 Cerumen filter for hearing aids
10/18/1994	US5357587 Distortion reduction in loudspeakers
10/18/1994	US5357585 Headphone assembly
10/18/1994	US5357577 Vacuum tube microphone apparatus
10/13/1994	WO1994023521A1 Unidirectional ear microphone and gasket
10/13/1994	WO1994023520A1 Unidirectional ear microphone with multiple openings
10/13/1994	WO1994023339A1 Method of simultaneous recording of pictures and sound and a camera for carrying out the method
10/13/1994	WO1994023313A1 Hydrophone carrier
10/13/1994	DE4306091A1 Bath cubicle for health treatment and sauna-taking
10/13/1994	CA2159582A1 Method for simultaneous recording of pictures and sound and a camera for carrying out the method
10/12/1994	EP0576657A4 A tilt adjuster for a speaker support frame.
10/12/1994	EP0423202B1 Headphone with microphone
10/12/1994	CN2179681Y Extension speaker
10/12/1994	CN2179680Y Lamp type microphone sterilizing device
10/12/1994	CN2179679Y Microphone sterilizing device
10/12/1994	CN2179678Y 麦克风受话器 Microphone Receiver
10/12/1994	CN2179677Y Interviewing microphone
10/11/1994	US5355419 On-vehicle audio system reproducing bodily-sensible sounds
10/11/1994	US5355351 Underwater low-frequency sound producer using a rare earth alloy
10/06/1994	DE4310221A1 Production of cup-shaped protective cages, particularly as housing caps for microphones
10/06/1994	DE4092322C2 Funnel loudspeaker and associated sound funnel
10/06/1994	CA2120469A1 Mounting assembly and method for mounting a loudspeaker in a vehicle
10/05/1994	EP0618751A1 Contact microphone for safety helmets and the like
10/05/1994	EP0219529B1 Speaker adapted to corner-loaded installation
10/05/1994	CN2178973Y Launching apparatus for radio microphone
10/04/1994	US5353263 Soft sonar suspension system
10/04/1994	US5353261 Vibrating apparatus
10/02/1994	CA2120188A1 Switching means for an audible warning signal generator
09/1994
09/29/1994	WO1994022277A1 Sound pick-up and reproduction apparatus and use thereof for conference calls
09/29/1994	WO1994022274A1 Acoustic reflector
09/28/1994	CN2178411Y Microphone for gathering news
09/27/1994	US5351220 Moving-coil electrodynamic electroacoustical transducer
09/27/1994	US5349986 Valve mechanism for an acoustic modulator
09/22/1994	DE4303093A1 Condenser microphone of two transducers having a variable directional pattern
09/21/1994	EP0482030B1 Loudspeaker enclosure
09/21/1994	CN2178031Y Karaoke microphone sterilizing base
09/21/1994	CN1092590A Television receiver with stereo speakers
09/20/1994	US5349480 Portable audio apparatus
09/20/1994	US5349140 Microphone windscreen
09/15/1994	WO1994021092A1 Fluid damped acoustic enclosure system
09/15/1994	DE4307825A1 Transducer for condensor microphones having a variable directional pattern
09/15/1994	DE4307655A1 Loudspeaker arrangement
09/14/1994	EP0614705A2 Wave-receiving piezoelectric device
09/14/1994	EP0614600A1 Loudspeaker.
09/14/1994	EP0614599A1 User selectable noise canceling for portable microphones
09/13/1994	US5347587 Speaker driving device
09/08/1994	DE4306670A1 Vibrator
09/07/1994	EP0614327A1 Electroacoustic transducer having a partition wall and a mask wall
09/07/1994	EP0614326A1 Speaker enclosure
09/07/1994	EP0614314A1 Audiovisual equipment and casing thereof and method of producing the same
09/06/1994	US5345512 Sound-wave collector
09/06/1994	US5345428 Flextensional transducers
09/06/1994	US5345045 Acoustic lens
09/04/1994	CA2090891A1 Sound reproduction chamber
09/01/1994	WO1994019915A1 Multiple-driver single horn loudspeaker
09/01/1994	WO1994019914A1 Rotary low-frequency sound reproducing apparatus and method
08/1994
08/31/1994	EP0613324A2 Collapsible ear tip
08/31/1994	EP0613323A1 Piezoceramic capsule for telephone instruments

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