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)
06/2003
06/24/2003US6584203 Second-order adaptive differential microphone array
06/24/2003US6581719 Wave shaping sound chamber
06/24/2003CA2250691C Portable telephone handset construction
06/19/2003WO2002098167A3 Device and apparatus for use with a portable communications device
06/19/2003US20030114760 Micromachined ultrasound transducer and method for fabricating same
06/19/2003US20030114116 Rear entertainment system
06/19/2003US20030112994 Electroacoustic transducer
06/19/2003US20030112991 Adjustable behind-the-ear communication device
06/19/2003US20030112989 Microphone sound directing device
06/18/2003EP1320280A2 Method for manufacturing an ear device
06/18/2003EP1319321A2 Loudspeaker driver
06/18/2003EP1074168B1 Telephone with means for anhancing the low-frequency response
06/18/2003DE20219417U1 Acoustic sensor registering screws and rivets on rebound onto sensor plate
06/18/2003CN2556886Y Loudspeaker box
06/18/2003CN2556883Y Sound connector
06/18/2003CN1425264A Bone conduction transducer and bone conduction speaker headset therewith
06/18/2003CN1424838A Electroacustic transducer
06/17/2003US6580802 Waved/corrugated and stepped surface design for speaker box, and method of standardization of speaker box assemblies for television of different screen sizes
06/17/2003US6580801 Loudspeaker apparatus
06/17/2003US6580800 Acoustic transducer
06/17/2003US6580799 Keyboard comprising a loudspeaker
06/17/2003US6580374 Audible communication system
06/17/2003US6578808 Mounting assembly for mounting a device in a barrier
06/17/2003US6578805 Microphone holder instrument, and support plate for supporting at least a pair of microphone holder instruments
06/17/2003US6578660 Speaker enclosure venturi expander
06/17/2003US6578658 Accoustic chamber integrated with vehicle door
06/12/2003WO2003049492A1 Ear cover with sound receiving element
06/12/2003WO2002051199A3 Programmable headset, programming apparatus and method
06/12/2003US20030108217 Garment with removable electronic devices
06/12/2003US20030108213 Loudspeaker device
06/12/2003US20030107302 Piezoelectric element and an oscillation transducer with a piezoelectric element
06/12/2003DE20303510U1 Loudspeaker housing has flow venting valves built into low frequency section
06/11/2003EP1318675A2 Display apparatus
06/11/2003EP1317869A1 A system of sound transducers with controllable directional properties
06/11/2003CN2555594Y Headphone device
06/11/2003CN1422599A Supersonic probe
06/10/2003US6577743 Electroacoustic transducer and structure for mounting an electroacoustic transducer
06/10/2003US6577741 Method and article of manufacture to align and reinforce a driver's installation irrespective of driver diameter
06/10/2003US6577738 Parametric virtual speaker and surround-sound system
06/05/2003WO2003047306A2 Radial power megasonic transducer
06/05/2003US20030103640 Earphone set
06/05/2003US20030103639 Miniature microphone
06/05/2003US20030103638 Single chip device for voice communications
06/05/2003US20030102777 Ultrasonic transducer and method of manufacturing the same
06/05/2003US20030102739 Vibrating device for transmitting information
06/04/2003EP1198974B1 Hearing aid with adaptive matching of microphones
06/03/2003US6574345 Structure of a wearable and hands free earphone
06/03/2003US6574344 Directional horn speaker system
06/03/2003US6572552 Ultrasonic diagnostic apparatus
06/03/2003US6571909 Loudspeaker enclosure
05/2003
05/30/2003WO2003045051A2 Equipment for shooting of film
05/30/2003WO2003043748A1 Heat-induced pressure wave generator
05/30/2003WO2003010996A3 Sound reinforcement system having an echo suppressor and loudspeaker beamformer
05/29/2003US20030100834 Ultrasonic probe
05/29/2003US20030099367 Portable radio terminal, and sound delivery method and sound intake method
05/29/2003US20030099366 Earphone-based voice transmission device
05/28/2003EP1315400A2 Speaker and method for manufacturing the speaker
05/28/2003EP1315399A2 Filtering device in acoustic housing for microphones in communication apparatuses
05/28/2003EP1315398A2 Horn loaded type loudspeaker
05/28/2003EP1314335A2 Pivoting and rotating loudspeaker assembly
05/28/2003EP1314334A2 Interchangeable loudspeaker baffle assembly
05/28/2003EP1313419A1 Ear protection with verification device
05/28/2003EP1313418A1 Ear terminal with microphone in meatus, with filtering giving transmitted signals the characteristics of spoken sound
05/28/2003EP1313417A1 Ear terminal with a microphone directed towards the meatus
05/28/2003EP0929890B1 Compact horn speaker
05/28/2003CN1420807A Device for driving vibration source
05/28/2003CN1420710A Composite receiver and loudspeaker
05/28/2003CN1420672A Loudspeaker assembly for mobile phone
05/28/2003CN1420636A Radio communication terminal assembly constituting antenna, loudspeaker and bell
05/27/2003US6570992 Microphone holder
05/27/2003US6570819 Low frequency acoustic projector
05/27/2003US6570622 Image pickup apparatus and image reproducing apparatus having an operating member
05/27/2003US6569100 Ultrasonic probe and method of producing same
05/27/2003CA2177039C Telephone communication headset
05/27/2003CA2084787C Loudspeakers
05/22/2003WO2003043373A1 Earphone wire and plug storage case
05/22/2003WO2003043372A1 Speaker for vehicle and mounting structure of the speaker
05/22/2003US20030097257 Sound signal process method, sound signal processing apparatus and speech recognizer
05/22/2003US20030096640 Headset docking device
05/22/2003US20030096632 Speaker assembly for mobile phones
05/22/2003US20030095680 Combined receiver and speaker
05/22/2003US20030095672 Active noise-attenuating duct element
05/22/2003US20030095671 Method and apparatus for transporting audio equipment
05/21/2003EP1313349A2 Device for reducing structural-acoustical coupling between the diaphragm vibration field and the enclosure acoustic modes
05/21/2003EP1312258A1 Method and device for communication with animal
05/21/2003EP1312240A2 Audiosystem for an automobile
05/21/2003EP1224837A4 Super directional beamforming design and implementation
05/21/2003CN2552277Y Loadspeaker box structure for chair headrest
05/21/2003CN2552276Y Earphone latch hook device
05/21/2003CN1109429C Dual use speaker for both voice communication and signalling
05/20/2003US6567655 Car radio system
05/20/2003US6567651 Retractable microphone/speaker lead for a belt clip attachment device for a mobile phone or the like
05/20/2003US6567526 Directional microphone assembly
05/20/2003US6567525 Supra aural active noise reduction headphones
05/20/2003US6567524 Noise protection verification device
05/20/2003US6567342 Flared wave-guide projector
05/20/2003US6566960 High back-EMF high pressure subwoofer having small volume cabinet low frequency cutoff and pressure resistant surround
05/20/2003CA2380396C Hearing aid with adaptive matching of microphones
05/20/2003CA2266362C Vehicular loudspeaker system
05/15/2003WO2003041447A1 Microphone unit
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