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)
06/2005
06/08/2005CN1625917A Low profile audio speaker
06/08/2005CN1625301A Processing technique of casing of loudspeaker box
06/08/2005CN1625299A SMD type biased condenser microphone
06/08/2005CN1625298A Externally ported loudspeaker enclosure
06/08/2005CN1625297A Ear wearable type wireless terminal
06/08/2005CN1625191A Circulating loudspeaker device of mobile communication terminal
06/08/2005CN1625189A Ear-weared sound information phone
06/08/2005CN1625059A FM transmitter for an MP3 player
06/08/2005CN1205840C Electroacoustic transducer having moving coil and having elastic holding elements with the connecting leads of the moving coil
06/08/2005CN1205837C Microphone and video camera
06/07/2005US6904157 Structure around a speaker unit and applied electric or electronic apparatus thereof
06/07/2005US6904154 Acoustic device
06/05/2005CA2488779A1 Externally ported loudspeaker enclosure
06/02/2005WO2005051041A1 Array speaker device
06/02/2005WO2005051037A1 Sonic emitter arrangements
06/02/2005WO2005051036A2 Behind-the-head mounted personal audio set
06/02/2005US20050117772 Thin type speaker having a damper
06/02/2005US20050117769 Surface-placed sound capturing microphone with rotatable cable connecting member
06/02/2005US20050117768 Bass reflex type speaker device, mounting structure and mounting method for speaker device
06/02/2005US20050117767 Speaker unit
06/02/2005US20050117766 Speaker unit for seat
06/02/2005US20050117763 Hearing aid or similar audio device and method for producing a hearing aid
06/02/2005US20050117762 Binaural sound localization using a formant-type cascade of resonators and anti-resonators
06/02/2005US20050117761 Headphone apparatus
06/02/2005US20050116585 Actuator
06/02/2005US20050115762 Speaker Unit
06/02/2005DE202005003656U1 Headset with multiple functions have adjustment element arranged in housing with several adjustment holes corresponding to outer sound holes that can be brought into or out of alignment with outer sound holes
06/02/2005DE10361041A1 Sound quality improvement for speaker of vehicle, by selecting standard sound range corresponding to detected number and positions of passengers in vehicle, then searching corresponding speaker angles and sound pressure output levels
06/02/2005DE10350413A1 Sound converter or loudspeaker, has additional members for acoustic resonance reduction electro-acoustic transducers, with additional members of electrically and magnetically conductive
06/02/2005DE10337181B4 Mikrofonanordnung Microphone array
06/02/2005DE10032666B4 Audiosystem für ein Kraftfahrzeug Audio system for a motor vehicle
06/01/2005EP1536664A2 Car audio equipment
06/01/2005EP1535490A1 Elliptical flushmount speaker
06/01/2005EP1535350A2 Low acceleration sensitivity mounting structures for crystal resonators
06/01/2005EP0784844B1 A tactile sensation generator
06/01/2005CN2703377Y Vibro-damping mounted loudspeaker
06/01/2005CN2703374Y Air defense warning loudspeaker
06/01/2005CN2702679Y Holder for hanging household utensiles
06/01/2005CN1622693A Loud speaker devcie
06/01/2005CN1622692A Loud speaker and method for manufacturing the same
06/01/2005CN1622691A Loud speaker and method for manufacturing the same
06/01/2005CN1622688A Sound cavity apparatus
06/01/2005CN1622687A Sound cavity apparatus
06/01/2005CN1622686A 扬声器单元 Speaker unit
06/01/2005CN1622685A Loud speaker
06/01/2005CN1622684A Loud speaker
06/01/2005CN1622683A Loud speaker
06/01/2005CN1622595A Multifunctional sound box pick-up head system
06/01/2005CN1204741C Apparatus for reducing vibration generated by loudspeaker in TV shell
05/2005
05/31/2005US6899794 Speaker device, and method and device for producing the same
05/26/2005WO2005048652A1 Electro-acoustic transducer comprising an rfid circuit
05/26/2005WO2005048650A1 Signal receiving apparatus and method
05/26/2005WO2005048649A1 Cable storage means
05/26/2005WO2005027567A3 Headphone with behind-the-head headband
05/26/2005WO2005002199A3 System and method for delivering audio-visual content along a customer waiting line
05/26/2005US20050113027 Ultra short range communication with sensing device and method
05/26/2005US20050111690 Speaker apparatus
05/26/2005US20050111689 Loudspeaker with assembly and performance improvements
05/26/2005US20050111678 Electro-optical device and electronic apparatus
05/26/2005US20050111677 Acoustic drive arrays and loudspeakers incorporating same
05/26/2005US20050111673 Baffle vibration reducing
05/25/2005EP1533784A2 Playback mode control device and method
05/25/2005EP1532842A1 Hearing aid or similar audio device and method for producing a hearing aid
05/25/2005EP1532839A1 Single and multiple reflection wave guide
05/25/2005EP1532838A2 Electro-dynamic planar loudspeakers
05/25/2005EP1532743A1 Subminiature bone vibrating speaker using the diaphragm and mobile phone thereby
05/25/2005EP1531729A1 Method of generating a predetermined wave field
05/25/2005EP1031229B1 Method for transmitting acoustic signals from a memory or chip card, and card for implementing said method
05/25/2005DE202005004856U1 Loudspeaker housing, has boring joining two parallel part sound-ducts
05/25/2005DE202005003706U1 Ventilated housing for bass loudspeaker has reflex channel divided into parallel sub-channels of different widths by longitudinal walls; sub-channels can be closed individually or in common both from the inside and the outside
05/25/2005DE202005003683U1 Transport container for use as presentation box for technical and other appliances is combined with one or more components for reproduction of acoustic signals, e.g. loudspeakers and amplifiers
05/25/2005DE202005003537U1 Adhäsives Mikrofon Adhesive microphone
05/25/2005DE202005002447U1 Microphone suspension device e.g. for recording studio, has microphone intertwined by elastic thread with suspension recorder body
05/25/2005DE102004005998B3 Separating sound signals involves Fourier transformation, inverse transformation using filter function dependent on angle of incidence with maximum at preferred angle and combined with frequency spectrum by multiplication
05/25/2005CN2702566Y Sound wave tube bass sound box
05/25/2005CN2702565Y Multiple sound tracks ultra-thin wall painting sound box
05/25/2005CN2702564Y Ultra-thin wall painting sound box
05/25/2005CN2702563Y A mini loudspeaker bed frame
05/25/2005CN1620194A Speaker device
05/25/2005CN1620190A Signal converter, output amplifying device, audio apparatus, and transmitting and receiving system
05/25/2005CN1620189A Acoustic apparatus
05/25/2005CN1620187A Voice box inlayed with leather decoration and its manufacturing method
05/25/2005CN1618662A Method of improving speaker sound quality in vehicle by controlling speaker angle
05/25/2005CN1618400A Playback mode control device and method
05/25/2005CN1203725C Small size loudspeaker for mobile telephone
05/25/2005CN1203494C High-freqency current supressor capable of being easily attached to cable or like and earphone system using same
05/25/2005CN1203465C Loudspeaker
05/24/2005US6898536 Method for improving the start up of an ultrasonic system under zero load conditions
05/24/2005US6898448 Miniature vocal transmitter device
05/24/2005US6898295 Strap-shaped input device
05/24/2005US6898294 Microphone set
05/24/2005US6898161 Sound control circuit for a digital audiovisual reproduction system
05/24/2005US6897601 Piezoelectric element and an oscillation transducer with a piezoelectric element
05/24/2005US6896097 Mounting structure of speaker for vehicle
05/24/2005US6896096 Acoustic structures
05/19/2005WO2004080113B1 Device having matched accoustical impedance and method
05/19/2005US20050105756 Speaker device
05/19/2005US20050105755 Modified earphone structure having closable opening
05/19/2005US20050105754 Portable audio player
05/19/2005US20050105753 Equaliser, or phase plug, for electro-acoustic transducers
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