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)
11/2005
11/23/2005EP0865713B1 Sound reproduction device or microphone
11/23/2005CN2742703Y Sound speaker
11/23/2005CN2742702Y Plug type earphone volume tuner
11/23/2005CN2742701Y Improvement of insert earphone structure
11/23/2005CN2742700Y Microphone head shell
11/23/2005CN2742699Y Electronic device capable of providing background music for telephone
11/23/2005CN2742698Y VHF, UHF two way FM radio voice earphone
11/23/2005CN1701628A Headphone
11/23/2005CN1701627A MP3 wireless transmitting-receiving module integrated in personal articles
11/23/2005CN1701626A Speaker device
11/23/2005CN1701625A Speaker module and appratus using this
11/23/2005CN1700809A Dome-shaped diaphragm and speaker
11/23/2005CN1700808A Alarm whistle device
11/23/2005CN1700807A Headset dedicated for mobile communication terminal
11/23/2005CN1699041A Method for manufacturing speaker-use center cap
11/23/2005CN1698977A Vibration source driving device
11/23/2005CN1228700C Electronic article comprising loudspeaker and touch pad
11/22/2005US6968070 Battery-operated wireless; includes a cover plate for firmly positioning a battery in a battery-mounting seat
11/22/2005US6968068 Foldable speakers
11/22/2005US6968067 Portable entertainment system
11/22/2005US6967541 Digital pulse-width-modulation generator
11/17/2005WO2005109951A1 Angular discrimination of acoustical or radio signals
11/17/2005WO2005109950A1 Bone conduction and wireless receiving set
11/17/2005WO2005109949A1 Multimedia speaker with integrated stand
11/17/2005US20050254778 System for providing wireless waterproof audio
11/17/2005US20050254681 Loudspeaker
11/17/2005US20050254680 Electroacoustic transducer
11/17/2005US20050254679 Condenser microphone
11/17/2005US20050254678 Portable audio system with changeable functionality
11/17/2005US20050254672 Bone conductive speaker
11/17/2005US20050254671 Condenser microphone
11/17/2005US20050254670 Condenser microphone
11/17/2005US20050254661 Wireless device for capturing multiple channel audio
11/17/2005US20050254643 Universal phone cover and method of use
11/17/2005US20050254640 Sound pickup apparatus and echo cancellation processing method
11/17/2005US20050254347 Parallel gcs structure for adaptive beamforming under equalization constraints
11/17/2005US20050254346 Transducer guard for trolling motor
11/17/2005DE10015751B4 Lautsprecherbox Speaker
11/16/2005EP1596634A2 Sound pickup apparatus and echo cancellation processing method
11/16/2005EP1596626A1 Speaker system
11/16/2005EP1596625A1 Circuit for the control of a loudspeaker
11/16/2005EP1596624A1 A parallel GSC structure for adaptive beamforming under equalization constraints
11/16/2005EP1595515A1 Ear-plug device, method for manufacturing the same and its use
11/16/2005EP1595427A1 Method and device for the separation of sound signals
11/16/2005CN2741301Y Separated earphone wire shift controller
11/16/2005CN2741300Y Recording pad chip
11/16/2005CN2741299Y Personnel digital reader with hidden earphone
11/16/2005CN2741298Y Host computer of vedio device on vehicle
11/16/2005CN1698399A Loudspeaker, manufacturing method thereof, and mobile telephone using the same
11/16/2005CN1698398A Speaker
11/16/2005CN1698355A Sound level adjusting apparatus
11/16/2005CN1697566A Electroacoustic transducer
11/16/2005CN1697563A Circuit for the control of a loudspeaker
11/16/2005CN1697562A Sound box of imitating to stone
11/16/2005CN1697561A Speaklouder
11/16/2005CN1697560A Combined speaker
11/16/2005CN1697559A Speaker apparatus
11/16/2005CN1697558A Multimedia speaker with integrated stand
11/16/2005CN1697557A Speaker apparatus
11/16/2005CN1697467A Speakerphone with a cellular phone connection
11/16/2005CN1227948C Electroacoustic transducer
11/15/2005US6965679 Equalizable electro-acoustic device used in commercial panels and method for converting said panels
11/15/2005US6965678 Electronic article comprising loudspeaker and touch pad
11/15/2005US6964318 Portable information terminal device
11/15/2005CA2230300C Headset
11/10/2005WO2005107317A1 Electric acoustic converter and electronic device using the same
11/10/2005WO2005107316A1 Electro-acoustic transducer and electronic apparatus using it
11/10/2005WO2005107314A1 Vibrating plate for electricity-sound transformer and method for producing the same, and electricity-sound transformer and equipment using the same
11/10/2005WO2005106876A2 Portable music player and transmitter
11/10/2005WO2004086366A3 Portable entertainment system
11/10/2005US20050250559 Adjustable ear canal retention transceiver/receiver
11/10/2005US20050249372 Hearing aid device and corresponding operating method
11/10/2005US20050249361 Selective shaping of communication signals
11/10/2005US20050249360 Systems and methods for microphone localization
11/10/2005US20050249359 Automatic microphone matching
11/10/2005US20050249355 [feedback active noise controlling circuit and headphone]
11/10/2005US20050249041 Miniature acoustic detector based on electron surface tunneling
11/10/2005US20050249039 Rapidly deployable, three-dimensional seismic recording system
11/10/2005US20050248911 Multimedia speaker with integrated stand
11/10/2005US20050247515 Ear-plug device, method for manufacturing the same and use of such an ear-plug device
11/10/2005DE202005005367U1 Spectacles have mountings that allow change of lenses and also have hearing aid capsules on the frame
11/10/2005DE102004027981B3 Adjustable loudspeaker holder has mounting, supporting and holding adapter, first and second connecting sections, whereby at least the orientation of two adapters bounding a connecting section can be adjusted
11/10/2005DE102004011149B3 Mikrophon und Verfahren zur Herstellung eines Mikrophons Microphone and method of manufacturing a microphone
11/10/2005CA2699563A1 Digital music library builder which identifies and associates meta-data with songs
11/10/2005CA2557895A1 Portable music player and transmitter
11/09/2005EP1594343A2 Hearing-aid device and corresponding operating method
11/09/2005EP1594340A1 Flexible ear piece for a hearing aid
11/09/2005EP1593288A2 Electrodynamic acoustic transducer
11/09/2005EP1245132B1 Garments incorporating audio devices
11/09/2005CN2739901Y Intercom throat bone vibrating earmicrophone
11/09/2005CN2739664Y Spectacles with music player
11/09/2005CN1695402A Vibration actuator device of portable terminal
11/09/2005CN1694574A Loudspeaker device
11/09/2005CN1226900C Loudspeaker for vehicle
11/08/2005US6963761 System and method for sounding a music accompanied by light or vibration
11/08/2005US6963653 High-order directional microphone diaphragm
11/08/2005US6963652 Low frequency generator
11/08/2005US6963651 Single magnetic circuit dual output speaker
11/08/2005US6963650 Coaxial speaker with step-down ledge to eliminate sound wave distortions and time delay
11/03/2005WO2005104618A2 Ear associated machine-human interface
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