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)
12/2005
12/08/2005US20050271231 Audio recordation and reproduction spring clips
12/08/2005US20050271230 Array speaker apparatus with projection screen
12/08/2005US20050271226 Speaker
12/08/2005US20050271225 Audio preview apparatus for display articles
12/08/2005US20050271223 Audio signal reproducing method and reproducing apparatus
12/08/2005US20050271221 Airborne collection of acoustic data using an unmanned aerial vehicle
12/08/2005US20050271220 Virtual microphones in electronic conferencing systems
12/08/2005US20050271218 Palm type dolby decoding earphone device
12/08/2005US20050270906 Resonator device and circuits for 3-d detection/receiving sonic waves, even of a very low amplitude/frequency, suitable for use in cybernetics
12/08/2005US20050270782 Microphone housing containing an illumination means
12/08/2005US20050270214 Loudspeaker control circuit
12/08/2005DE202005016043U1 Loudspeaker assembly for business and social locations and other optically and acoustically pretentious locations, e.g. churches and historical buildings
12/08/2005DE10309568B4 Mikrofonstativ und Mikrofonsystem mit einem Mikrofonstativ Microphone stand microphone system with a microphone stand
12/08/2005DE102004023531A1 Thin-walled cylindrical housing for bass loudspeaker horn has sound output opening at bottom and has flat lid with cloth cylinder extending above top
12/08/2005DE102004021546A1 Electroacoustic transducer for loudspeaker with horn incorporates amplifier with negative output impedance and has power amplifier with negative feedback via resistor
12/08/2005DE10045703B4 Lautsprechervorrichtung Speaker device
12/08/2005CA2568189A1 Speaker system
12/07/2005EP1603362A1 Bone conduction device
12/07/2005EP1603114A2 Packaged piezoelectric exciter module
12/07/2005EP1602261A2 Integrated loudspeaker system
12/07/2005EP1602260A2 Transducer assembly with modifiable buffer circuit and method for adjusting thereof
12/07/2005EP0723733B1 Microphone system for teleconferencing system
12/07/2005CN2745305Y A multi-orientation sound-conducting emulational-mode sound box
12/07/2005CN2745304Y A water-proof emulational-mode sound box
12/07/2005CN2745303Y Loudspeaker
12/07/2005CN1706219A Holder kit for directional condenser microphone
12/07/2005CN1706218A A condenser microphone mountable on main PCB
12/07/2005CN1706217A A parallelepiped type condenser microphone for SMD
12/07/2005CN1231095C Loudspeaker equipment
12/07/2005CN1230948C Power and guidance connector
12/07/2005CN1230797C Electro-acoustic transducer
12/06/2005CA2153697C Cover for a sealing ring of an earmuff
12/01/2005WO2005115053A1 Dual diaphragm electroacoustic transducer
12/01/2005WO2005115052A1 Capacitor microphone
12/01/2005WO2005115051A1 Wireless device for capturing multiple channel audio
12/01/2005WO2005115050A1 Vehicle loudspeaker array
12/01/2005WO2005115049A1 Acoustic effecter
12/01/2005WO2005115048A1 Headphone, electronic device, cord winding device, and cord winding method
12/01/2005WO2005115047A1 Portable electronic device
12/01/2005WO2005115046A2 Portable audio system with changeable functionality
12/01/2005WO2005114780A2 Low cost acoustical structures manufactured from conductive loaded resin-based materials
12/01/2005WO2005112697A2 Closed loop embedded audio transmission line technology
12/01/2005US20050265574 Display cover for a communication device
12/01/2005US20050265571 Method of detecting and deterring microphone sabotage
12/01/2005US20050265570 Method to generate a plane acoustic wave front, a plane wave channel, a loudspeaker construction and a linear loudspeaker array
12/01/2005US20050265569 Compact portable media reproduction system
12/01/2005US20050265567 Speaker clearance arrangement for a communication device
12/01/2005US20050265565 Information processing apparatus
12/01/2005US20050265560 Indoor communication system for a vehicular cabin
12/01/2005US20050263342 Speaker fixture assembly
12/01/2005US20050263341 Adjustable Speaker Mount
12/01/2005DE10026578B4 Vergrösserte Ohrmuschel mit anpassbarem Ohrpolster und verbesserter Geräuschdämpfung Enlarged ear with adjustable ear pads and improved noise reduction
12/01/2005CA2689173A1 Speaker clearance arrangement for a communication device
12/01/2005CA2566128A1 Portable audio system with changeable functionality
11/2005
11/30/2005EP1601230A2 Loudspeaker system
11/30/2005EP1601168A1 Keypad and microphone arrangement
11/30/2005EP1600035A1 Sound beam loudspeaker system
11/30/2005EP1600034A1 Loudspeaker box
11/30/2005EP1600033A1 Holding device for holding at least two separate electroacoustic transducers
11/30/2005EP1600032A1 Device for fitting a space-designing means with a loudspeaker function
11/30/2005EP1600031A2 Device having matched accoustical impedance and method
11/30/2005CN2744104Y Omnidirectional loudspeaker
11/30/2005CN2744103Y Horn loudspeaker
11/30/2005CN2744102Y Double folding ring plane passive radiator
11/30/2005CN2744101Y Inverse phase type loudspeaker box
11/30/2005CN2744100Y Earplug type earphone
11/30/2005CN2744099Y Microphone device capable of being placed in human ear
11/30/2005CN2744098Y Device for sliding and fastening earphone wire
11/30/2005CN1703930A Multispeaker sound imaging system
11/30/2005CN1703929A Ultrasonic sensor
11/30/2005CN1703115A Speaker
11/30/2005CN1703114A Loudspeaker sound modulation apparatus
11/30/2005CN1230059C Portable radio apparatus
11/30/2005CN1230036C Electroacustic converter and structure for connecting same
11/29/2005US6970752 Method and apparatus for detecting switch closures
11/29/2005US6970572 Headphone device
11/24/2005WO2005112508A1 Acoustic system
11/24/2005WO2005112504A1 Portable audio reproduction system
11/24/2005WO2005112503A1 System for providing wireless waterproof audio
11/24/2005WO2005111993A1 Noise suppressing structure of cabin
11/24/2005WO2005111908A1 Prismatic loudspeaker/microphone array
11/24/2005US20050261039 Condenser microphone
11/24/2005US20050259843 Dome-shaped diaphragm and speaker
11/24/2005US20050259842 Boundary microphone
11/24/2005US20050259841 Narrow opening electroacoustical transducing
11/24/2005US20050259837 Sound collecting device minimizing electrical noise
11/24/2005US20050259835 Condenser microphone
11/24/2005US20050259832 Sound pickup method and apparatus, sound pickup and reproduction method, and sound reproduction apparatus
11/24/2005US20050259831 Vehicle loudspeaker array
11/24/2005US20050259811 Headset for communication devices
11/24/2005US20050257999 Bobbin integrated type magnesium diaphragm, manufacturing method thereof, and speaker device using the diaphragm
11/24/2005US20050257998 Method for manufacturing speaker-use center cap
11/24/2005US20050257995 System and method for providing passive noise reduction
11/24/2005DE202005012508U1 Mobile dictation system, streams data via wireless link to fixed base station over clear channel, but stores data until any detected break or interference ceases
11/24/2005DE202004010933U1 Audio network system used in combination with computer programs for speech recognition, includes workstation facilities and star-connected high frequency network
11/23/2005EP1599066A2 Bobbin integrated type magnesium diaphragm, manufacturing method thereof, and speaker device using the diaphragm
11/23/2005EP1599065A1 Multifunctional actuator and mobile terminal
11/23/2005EP1597937A1 Mobile device with improved acoustic porting
11/23/2005EP1573946A4 Digital transmission and control system for vehicles
11/23/2005EP1532838A4 Electro-dynamic planar loudspeakers
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