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)
11/2003
11/25/2003US6654472 Speaker system in display
11/25/2003US6654464 Connector for printed circuit and equipment which includes it
11/25/2003US6652132 Potting loudspeaker box
11/25/2003US6651772 Loudspeaker cone protector
11/20/2003WO2003096745A1 External ear insert for hearing comprehension enhancement
11/20/2003WO2003096744A1 Means at electromagnetic vibrator
11/20/2003WO2003088206A3 Internal lens system for loudspeaker waveguides
11/20/2003WO2003075603A3 Digital microphone
11/20/2003US20030215107 Horn-loaded compression driver system
11/20/2003US20030213642 Modular speaker construction
11/20/2003DE20314657U1 Ventilated housing for low-frequency loudspeaker has labyrinth with baffles, with open area being reduced in stages from one hundred percent to twenty-five percent
11/20/2003CA2817889A1 External ear insert for hearing comprehension enhancement
11/20/2003CA2490998A1 External ear insert for hearing comprehension enhancement
11/19/2003EP1363450A1 Head mounted image/voice reproducing system
11/19/2003EP1190599B1 Stiffened membrane assemblies
11/19/2003CN2587125Y Novel dynamic sound box
11/19/2003CN1457621A Electroacoustic transducer being acoustical tight in area of its air gap for its moving coil
11/19/2003CN1457620A Microphone with arm
11/19/2003CN1128562C Loundspeaker device
11/18/2003US6650760 Loudspeaker
11/18/2003US6650758 Adaptive dual port loudspeaker implementation for reducing lateral transmission
11/18/2003US6648098 Spiral acoustic waveguide electroacoustical transducing system
11/13/2003WO2003094575A1 Portable audio player
11/13/2003WO2003094571A2 Electro-dynamic planar loudspeakers
11/13/2003WO2003093950A2 Localized audio networks and associated digital accessories
11/13/2003WO2003019978A3 Bass reflex-type headphone
11/13/2003WO2003019977A3 Supporter for headphone
11/13/2003US20030210799 Multiple membrane structure and method of manufacture
11/13/2003US20030210798 Speaker control apparatus and speaker system
11/13/2003US20030210530 Housing construction for rack-mounted electronic equipment
11/13/2003US20030209384 Loudspeaker system with common low and high frequency horn mounting
11/13/2003US20030209383 Modular microphone array for surround sound recording
11/13/2003DE20310025U1 Head set for functional device has insert body, flexible, stiff yoke for placement in shell, holding device joined to insert body for holding functional device for fixing in shell by bending yoke
11/12/2003EP1361779A2 Electroaccoustic transducer
11/12/2003EP1361778A2 Earpiece light
11/12/2003EP1360774A1 Modular communication devices
11/12/2003EP1238446B1 An electrical contact device for interconnecting electrical components
11/12/2003EP1101388B1 Louspeaker drive unit having a resonant panel-form member
11/12/2003EP1044581B1 Transducer assembly
11/12/2003EP0715801B1 Airborne sensor for listening to acoustic signals
11/12/2003CN2586320Y Loudspeaker box
11/12/2003CN2586319Y Heavy wafer
11/12/2003CN2586317Y Television heavy wafer and television
11/12/2003CN1456023A System of sound tranceducers with controllable directional properties
11/12/2003CN1455621A Loudspeaker
11/12/2003CN1455620A Electroacoustic transducer
11/12/2003CN1127883C Loud-speaker system
11/11/2003US6647124 Loudspeaker with coaxial magnetic circuit for high-pitch sound and low-pitch sound
11/11/2003US6647122 Loudspeaker drive unit
11/11/2003US6647118 Noise canceling microphone unit for composing noise canceling handset by using normal housing
11/11/2003US6646800 Visual and audio system for theaters
11/11/2003US6645150 Wide or multiple frequency band ultrasound transducer and transducer arrays
11/06/2003WO2003092322A1 Signal transmission system
11/06/2003WO2003092321A1 Sound focus speaker of gas-filled sound lens attachment type
11/06/2003WO2003090511A2 Method and apparatus for a light weight enclosure for projection televisions
11/06/2003WO2002062098A8 Earphone with supporting band
11/06/2003WO2002060801A8 Headset docking device
11/06/2003WO2002054825A3 Earring for a headset
11/06/2003WO2002041287A3 Display signs
11/06/2003US20030207882 Aminoheterocyclic derivatives as antithrombotic or anticoagulant agents
11/06/2003US20030206641 Loudspeaker with coaxial magnetic circuit for high-pitch sound and low-pitch sound
11/06/2003US20030206640 Microphone array signal enhancement
11/06/2003US20030204990 Potting loudspeaker box
11/06/2003DE20309411U1 Combination loudspeaker housing, has sound exit openings arranged mutually opposite two interconnected chambers
11/05/2003EP1358781A1 Faceplate
11/05/2003EP1358780A2 Cross-fired multiple horn loudspeaker system
11/05/2003EP1358651A1 Manifold for a horn loudspeaker
11/05/2003EP1358618A1 Method for multiple suppression based on phase arrays
11/05/2003EP1222840B1 Assembly and method for covering small earphones
11/05/2003CN2585245Y Hydrophone set used for drag wire array sonar basic array
11/05/2003CN1454445A Portable audio devices
11/05/2003CN1454444A Multi-channel headphone system
11/05/2003CN1454443A 骨传导振动器 Bone conduction vibrator
11/05/2003CN1454028A Manufacture of hand-free unit
11/05/2003CN1453970A Earphone and microphone capable of being withdrawn and their manufacture
11/05/2003CN1127220C Vibration actuator for pager
11/04/2003US6643380 Shielded microphone module and preamplifier
11/04/2003US6643378 Bone conduction hearing aid
11/04/2003US6643377 Audio output system and method therefor
11/04/2003US6641537 Multi-zone transmitter for quantitative ultrasound and image measurement
11/04/2003US6640924 Rigging system for loudspeakers
10/2003
10/30/2003WO2003090495A1 Mattress having sound-to-vibration conversion apparatus
10/30/2003WO2003090062A1 Directional microphone arrangement
10/30/2003WO2003089100A1 Method and apparatus for data receiver and controller
10/30/2003WO2003047306A3 Radial power megasonic transducer
10/30/2003WO2003026344A3 Acoustic device
10/30/2003WO2002093972A3 Acoustic member for a loudspeaker comprising a component having a selected frequency dependence and method of making same
10/30/2003US20030202676 Composite damper of loudspeaker
10/30/2003US20030202674 Speaker
10/30/2003US20030202673 Electroacoustic transducer
10/30/2003US20030202668 Earphone type transmitter and receiver apparatus
10/30/2003US20030202346 Earpiece light
10/30/2003US20030202341 Headset incorporating an integral light
10/30/2003DE10232118C1 Loudspeaker enclosure has tweeter fitted in cut-out in damping mat positioned in front of diaphragm of mid-range loudspeaker
10/29/2003EP1357768A2 Piezoelectric electro-acoustic transducer
10/29/2003EP1356977A1 Line-of-Sight detecting through a microphone
10/29/2003EP1356707A2 Electroacoustic conversion of audio signals, especially voice signals
10/29/2003EP1356706A2 Second order microphone array
10/29/2003EP1355845A1 Headset docking device
10/29/2003EP1072167B1 Apparatus having a housing which accommodates a sound transducer and which has a passage
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