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)
06/2000
06/22/2000WO2000036875A2 Loudspeaker
06/22/2000WO2000035348A1 Sound pickup sensor
06/22/2000WO2000035338A1 Device for injecting ultrasonic waves into a medium
06/21/2000EP1010351A1 Loudspeakers
06/21/2000EP1009977A2 Wafer fabricated electroacoustic transducer
06/21/2000DE19909583A1 Adjustable earphone and microphone combination comprises speaker signal line connected to speaker and microphone signal line connected to microphone
06/21/2000DE19853887C1 Joystick mit Mikrofon Joystick with microphone
06/21/2000CN2384390Y Loudspeaker structure
06/21/2000CN2384389Y Hi-Fi loudspeaker box case
06/21/2000CN1257638A Loudspeaker suspension device and fabricating met thereof
06/20/2000US6078676 Speaker system with a three-dimensional spiral sound passage
06/20/2000US6078675 Communication system for users of hearing aids
06/20/2000US6076631 Bass reflex box of an automobile radio-sound system
06/18/2000CA2292357A1 Microphone array diffracting structure
06/15/2000WO2000035245A2 Waterproof housing cover for hospital bed
06/15/2000WO2000035242A2 Bending wave panel-form loudspeaker
06/15/2000WO2000033634A2 Method for providing the transmission characteristics of a microphone arrangement and microphone arrangement
06/15/2000WO2000021264B1 Pivotable earpiece assembly
06/15/2000DE19854373A1 Verfahren zur Steuerung der Empfindlichkeit eines Mikrofons Method for controlling the sensitivity of a microphone
06/15/2000CA2356646A1 Waterproof housing cover for hospital bed
06/14/2000EP1009144A2 Digital telephone trasmitter/receiver
06/14/2000EP1008277A2 Sound pickup device, specially for a voice station
06/14/2000EP1007390A1 Trim panel comprising an integral acoustic system
06/14/2000EP0932523B1 Vehicle loudspeakers
06/14/2000CN1256607A Voice conversion unit
06/14/2000CN1256572A Digital transmitter-receiver
06/13/2000US6075869 Directional microphone assembly
06/13/2000US6075868 Apparatus for the creation of a desirable acoustical virtual reality
06/13/2000US6075867 Micromechanical microphone
06/13/2000US6075857 Motor cycle helmet headset
06/13/2000US6073723 Acoustic damping material
06/08/2000WO2000033613A2 Resonant bending wave panel-form loudspeaker
06/08/2000WO2000033612A2 Bending wave acoustic devices
06/08/2000WO2000033610A1 Speaker device
06/07/2000EP1005782A1 Telephone with a receiver arousing bone-conduction and air-conduction hearing
06/07/2000CN2382186Y Waterproof lamp decording speaker box
06/07/2000CN1256065A Acoustic appts.
06/07/2000CN1255820A Loudspeaker device
06/07/2000CN1255819A Earphone device
06/07/2000CN1255818A Technology for manufacturing body of sound enclosure
06/07/2000CN1255817A Earphone structure without acoustic hearing loss and impulsive noise
06/06/2000US6072886 Electroacoustic transducer comprising spring contacts formed with at least one bend
06/06/2000US6072885 Hearing aid device incorporating signal processing techniques
06/06/2000US6070694 Loudspeaker assembly
06/06/2000CA2102220C Expandable sonar array
06/02/2000WO2000032012A1 Speaker device
06/02/2000WO2000032010A2 Auxiliary bass radiator units
06/02/2000WO2000031605A1 Joystick with a microphone
06/02/2000WO2000030716A1 Oxygen inhaler mask with sound pickup device
06/02/2000WO2000003559A9 Noise control device for a boom mounted noise-cancelling microphone
06/02/2000CA2318238A1 Auxiliary bass radiator units
06/02/2000CA2316965A1 Joystick with a microphone
05/2000
05/31/2000EP1005250A2 Method for controlling the sensitivity of a microphone
05/31/2000EP0625299B1 An electro-acoustic transducer
05/31/2000DE19951255A1 Elektronisch geregeltes Audiosystem mit Drehknopfregler Electronically controlled audio system with rotary control
05/31/2000DE19849739A1 Hearing aid with directional microphone system has comparison of microphone signal amplitudes used for controlling regulating element for equalization of microphone signals
05/31/2000DE19844552A1 Loudspeaker housing has vertical middle tone loudspeaker unit positioned infront of low tone loudspeakers and pivoted for selecting optimum hearing angle
05/31/2000CN2381088Y Telescopic multifunction combined microphone
05/31/2000CN1255278A Vibration transducers for resonant panel-form loudspeaker and loudspeaker with the same
05/31/2000CN1255277A Panel-form loudspeakers
05/31/2000CN1255035A Supporter of sound body
05/31/2000CN1254877A Portable MP3 player with multiple functions
05/30/2000US6069964 Earphone-microphone-earmuff assembly
05/30/2000US6069962 Point source speaker system
05/30/2000US6069961 Microphone system
05/30/2000US6069958 Listening apparatus for remote wildlife sound acquistion
05/30/2000US6068235 Microphone connector assembly and method
05/30/2000US6068080 Apparatus for the redistribution of acoustic energy
05/30/2000CA2187248C Hydrophone structure and method
05/30/2000CA2120019C Sound acquisition method and system, and sound acquisition and reproduction apparatus
05/25/2000WO2000030402A1 Microphone array with high directivity
05/25/2000WO2000022877A8 Resonant panel loudspeakers
05/25/2000DE19956254A1 Passive Elemente für Lautsprecher in geschlossenen Gehäusen Passive elements for speakers in sealed enclosures
05/25/2000DE19853251A1 Head mounting for telephone receiver, comprises frame having releasable connection to telephone receiver and supporting cushion
05/25/2000CA2350549A1 Microphone array with high directivity
05/24/2000EP1003349A2 Flexible earhook
05/24/2000EP1002445A1 Sound radiating devices/systems
05/24/2000EP1002413A2 Apparatus for operation in an on-ear mode and an off-ear mode
05/24/2000CN1254492A Headset assembly
05/24/2000CN1254247A Loudspeaker box
05/23/2000US6067364 Mechanical acoustic crossover network and transducer therefor
05/23/2000US6067224 Portable information processing apparatus with an improved acoustic effect
05/23/2000US6067006 Personal audible alarm
05/20/2000CA2277007A1 Flexible earhook
05/18/2000WO2000028781A1 Acoustic device according to bending wave principle
05/18/2000WO2000028780A1 Loudspeakers comprising a phase uncorrelated diffuse sound source
05/18/2000WO2000028523A1 Karaoke (sing-along) device
05/18/2000WO2000028522A1 Portable microphone device for karaoke (sing-along) and sing-along machine
05/18/2000CA2349861A1 Acoustic device according to bending wave principle
05/18/2000CA2349856A1 Loudspeakers comprising a phase uncorrelated diffuse sound source
05/17/2000EP1001651A2 Sounding-body holding device
05/17/2000EP1001547A1 Loudspeaking mobile telephone
05/17/2000EP1000525A1 Loudspeaker system having a bass-reflex port
05/17/2000EP1000524A1 An electrical contact free microphone attachment for a flip-type radio phone
05/17/2000CN1253530A Automobile sound producing device
05/16/2000US6064746 Piezoelectric speaker
05/16/2000US6064745 Compression driver phase plug
05/16/2000US6064744 Omni-directional loudspeaker
05/16/2000US6064699 Wireless speaker system for transmitting analog and digital information over a single high-frequency channel
05/16/2000US6062339 Compact spiral cavity loudspeaker enclosure
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