H04R 1 - Details of transducers

Patents for H04R 1 - Details of transducers (42,173)
12/2009
12/02/2009	CN101594561A Portable sound box
12/02/2009	CN101593472A Flat-panel display with sliding-type horn structure
12/02/2009	CN101589873A Protection device and audio play system using protection device
12/02/2009	CN100566455C Biodegradable material for audio systems
12/02/2009	CN100563609C Ear cup with microphone device
12/01/2009	US7627134 Magnet retention system in planar loudspeakers
12/01/2009	US7627132 Wind noise reduction for microphone
12/01/2009	US7627131 Flexible earpiece for a hearing aid
12/01/2009	US7627128 Methods of calibrating tone-based communications systems
12/01/2009	US7627112 Sound guide for speaker and handset for mobile communication using the same
12/01/2009	US7624840 Electronic apparatus
12/01/2009	US7624839 Enclosure for symbiotic active/passive operation of an acoustic driver
11/2009
11/26/2009	WO2009143055A1 Adjustable, dual speaker element in-ear phone
11/26/2009	WO2009142250A1 Integrated circuit device, sound inputting device and information processing system
11/26/2009	WO2009142249A1 Voice input device and manufacturing method thereof, and information processing system
11/26/2009	WO2009141912A1 Earphone apparatus
11/26/2009	WO2009140982A1 Earphone system and use of an earphone system
11/26/2009	US20090291718 Mobile Terminal and Speaker
11/26/2009	US20090290749 Dynamic electro-acoustic transducer and earphone
11/26/2009	US20090290748 Moving-Coil Planar Speaker
11/26/2009	US20090290747 Mountable audio system for electronic devices
11/26/2009	US20090290746 Card-type device and method for manufacturing same
11/26/2009	US20090290745 Battery charging jobsite audio apparatus
11/26/2009	US20090290744 Electronic device with a speaker
11/26/2009	US20090290743 Skin-mounted digital device with stacked flex circuit
11/26/2009	US20090290732 Bending Wave Acoustic Device and Method of Making Thereof
11/26/2009	US20090290731 Circuit arrangement for the bidirectional operation of a sound transducers disposed at the ends of a measuring section
11/26/2009	US20090290730 Bone conduction speaker
11/26/2009	US20090290721 Method and System for Automatic Level Reduction
11/26/2009	US20090290720 Audio System
11/26/2009	DE102008024816A1 Dynamischer elektro-akustischer Wandler und Hörer Dynamic electro-acoustic transducer and receiver
11/26/2009	DE102008024705A1 Loudspeaker arrangement for motor vehicle, has helmholz resonator for realizing equal resonance volumes on opposite side of coupling of loud speaker so that loud speaker is separated from installation location
11/26/2009	CA2725396A1 Adjustable, dual speaker element in-ear phone
11/25/2009	EP2124478A1 Delay time calculation apparatus, delay time calculation method, and storage medium storing program therefor
11/25/2009	EP2124477A2 Earphone device and sound generating apparatus equipped with the same
11/25/2009	EP2124476A2 Voice transmitter-receiver
11/25/2009	EP2124475A1 Battery charging jobsite audio apparatus
11/25/2009	EP2123116A1 Multi-sensor sound source localization
11/25/2009	EP2123110A1 Loudspeaker
11/25/2009	EP2123106A1 Loudspeaker apparatus for radiating acoustic waves in a hemisphere
11/25/2009	EP2123105A1 Adjustable hearing aid for portable devices.
11/25/2009	EP1307761B1 Method for localising direction and localisation arrangement
11/25/2009	CN201352851Y Mobile portable multi-functional wireless loud-speaker
11/25/2009	CN201352849Y Horn structure
11/25/2009	CN201352848Y String instrument type speaker system
11/25/2009	CN201352847Y Zipper-type earphones
11/25/2009	CN201352846Y Anti-breaking earphones
11/25/2009	CN201352845Y Easily-arranged earphone
11/25/2009	CN201352844Y 耳机耳罩 Ear headphones
11/25/2009	CN201352843Y Microphone of improved hermetically-sealed tone chamber structure
11/25/2009	CN201352842Y Disposable isolation cover of microphone net joint
11/25/2009	CN201352841Y Thin type loudspeaker
11/25/2009	CN101588530A Moving-magnetic type bone conduction audio-frequency transducer
11/25/2009	CN101588526A Directivity optimization method of loudspeaker array
11/25/2009	CN101588525A Directivity optimization method of loudspeaker array
11/25/2009	CN101588524A Directionally adjustable miniature audio frequency directional loudspeaker
11/25/2009	CN101588523A Earphone device and sound generating apparatus equipped with the same
11/25/2009	CN101588522A Portable electronic device with magnet padlock type speaker
11/25/2009	CN101588521A Sound box structure
11/25/2009	CN101587674A Outdoor directional sound advertising device
11/25/2009	CN101585949A Oil-proof PVC sheath material for earphone wire
11/25/2009	CN100563379C Exciter for directly vibrating board
11/25/2009	CN100563268C Method of multi-call management of mobile communication terminal using earplug
11/25/2009	CN100562924C Electronic keyboard instrument
11/24/2009	US7623670 Waveguide electroacoustical transducing
11/24/2009	US7623669 Simplified amplifier providing sharing of music with enhanced spatial presence through multiple headphone jacks
11/24/2009	US7623667 Electronic device accessory with ultrasonic tone generator
11/24/2009	CA2520037C Active acoustics performance shell
11/24/2009	CA2491558C Acoustic transducers for tubulars
11/24/2009	CA2424828C Directional microphone assembly
11/24/2009	CA2369832C Video/audio system and method enabling a user to select different views and sounds associated with an event
11/19/2009	WO2009139682A1 Hearing protector
11/19/2009	WO2009138524A2 Advanced microphone protection
11/19/2009	WO2009138136A1 Acoustic-electric transducer with adjustable air gap, electronic device, method & computer program product
11/19/2009	WO2009137990A1 Bluetooth headset placement and u-disk combination device
11/19/2009	WO2009059211A4 Earphone device
11/19/2009	US20090285441 Loudspeaker Having a Continuous Molded Diaphragm
11/19/2009	US20090285440 Electroacoustic tranducing device
11/19/2009	US20090285439 Electroacoustic transducing device
11/19/2009	US20090285438 Flat panel display with sliding loudspeaker structure
11/19/2009	US20090285436 Earphone
11/19/2009	US20090285434 Earhook and earbud headset
11/19/2009	US20090285433 Headphone
11/19/2009	US20090285432 Tunable frequency acoustic structures
11/19/2009	US20090285431 Diaphragm with integrated acoustical and optical properties
11/19/2009	US20090285430 Article with sound emitter
11/19/2009	US20090285429 Portable electronic device with a magnetic-locking speaker
11/19/2009	US20090285423 Method and device for matching the phases of microphone signals of a directional microphone of a hearing aid
11/19/2009	US20090285418 Acoustic-electric transducer, electronic device, method, and computer program product
11/19/2009	US20090285413 Workstation privacy apparatus
11/19/2009	US20090284055 Seat electroacoustical transducing
11/19/2009	DE202009011146U1 Lautsprechersystem Speaker system
11/19/2009	DE102008052684A1 Hearing device i.e. cymba-hearing device, for conveying sound effect to user, has cable section provided with predetermined curve within layer perpendicular to another layer in longitudinal course of cable section
11/19/2009	CA2724195A1 Hearing protector
11/18/2009	EP2120482A1 Electroacoustic transducing device
11/18/2009	EP2120422A1 Relay device
11/18/2009	EP2119305A2 Audio system with synthesized positive impedance
11/18/2009	EP2119304A1 A refractory mounting unit for ceiling mounted or wall mounted electric devices
11/18/2009	EP2119200A1 Headset having wirelessly linked earpieces
11/18/2009	CN201349323Y Concealed speaker system of liquid crystal TV

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