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)
04/2003
04/24/2003US20030078073 Speaker module connectable to an earphone jack of mobile phone and method for using same
04/24/2003US20030077945 Connector for speaker
04/24/2003US20030076976 Microphone with arm
04/24/2003US20030076975 Speaker port system for reducing boundary layer separation
04/24/2003US20030076971 Casing for an electronic device and process for assembly of such a casing
04/24/2003US20030076970 Electret assembly for a microphone having a backplate with improved charge stability
04/24/2003US20030076743 Enhancement of acoustic wave sensor response by electrode modification
04/24/2003US20030076599 System and method for acoustic imaging at two focal lengths with a single lens
04/24/2003DE10207214C1 Folding audio headphone set has hoop ends folded inwards relative to remainder of hoop and electroacoustic transducers pivoted through 90 degrees between working and stowed positions
04/23/2003EP1304015A2 Acoustic structures
04/23/2003CN2547087Y Acoustic horn with integrated structure
04/23/2003CN1413060A Box voice basin loudspeaker
04/23/2003CN1106786C 扬声器装置 Speaker system
04/22/2003US6553125 Multiple-function convertor for converting electric signals to vibration of elements of a portable electronic instrument
04/22/2003US6553124 Acoustic device
04/22/2003US6550570 Speaker enclosure and mounting method for isolating and insulating faceplate and speakers from a surrounding mounting surface
04/22/2003US6550332 Real-time noise source visualizing system using acoustic mirror
04/17/2003WO2003032677A2 Bass reflex acoustical enclosure with two speakers
04/17/2003WO2003032505A2 Electroacoustic transducer having a moving coil and having movable holding elements for the connecting leads of the moving coil
04/17/2003WO2003030772A2 A microphone module for use with a hearing aid or cochlear implant system
04/17/2003WO2002051205A9 Condenser microphone assembly
04/17/2003US20030073460 Modular headset for cellphone or MP3 player
04/17/2003US20030072466 Communication headset
04/17/2003US20030072461 Ultra-directional microphones
04/17/2003US20030072460 Directional sound acquisition
04/17/2003US20030070535 MusiCoveralls
04/17/2003CA2397245A1 Method for manufacturing an ear device
04/16/2003EP1302091A2 A directional microphone
04/16/2003EP1264515A4 Acoustic switch with electronic switching capability
04/16/2003CN2545780Y Voice dustbin
04/16/2003CN1411678A Headphone
04/16/2003CN1411313A Electroacoustic converter and electronic apparatus
04/16/2003CN1411308A Composite loudspeaker for portable communication apparatus
04/15/2003US6549637 Loudspeaker with differential flow vent means
04/15/2003US6549636 Miniature microphone component with conductive rubber contacts
04/15/2003US6549634 Behind-the-ear hearing aid
04/15/2003US6549630 Signal expander with discrimination between close and distant acoustic source
04/15/2003US6548987 Holder for recharging a wireless microphone
04/15/2003CA2277024C Speaker system having an undulating rigid speaker enclosure
04/10/2003WO2003030585A1 Device for listening to voice and/or musical signals by means of cranial bone transmission
04/10/2003WO2003030583A2 Waveguide loudspeaker with adjustable controlled dispersion
04/10/2003WO2003030146A1 Method for canceling unwanted loudspeaker signals
04/10/2003WO2003030145A1 Method for reproducing sound signals and sound reproducing system
04/10/2003WO2002077967A9 A device and method for inserting acoustical dampers into earphones
04/10/2003WO2002052891A3 Handsfree earphone device for cellular phones
04/10/2003US20030068987 Component for a wireless communication terminal constituting an antenna, loudspeaker and ringer
04/10/2003US20030068065 Electroacoustic transducer having a moving coil and having movable holding elements for the connecting leads of the moving coil
04/10/2003US20030068062 Structure of a receptacle for earphone wire
04/10/2003US20030068061 Receptacle for earphone cord
04/10/2003US20030068057 Information system using eyewear for communication
04/10/2003US20030068051 Surround sound speaker system
04/10/2003US20030068049 Lay-in tile speaker system
04/10/2003US20030068048 Method for canceling unwanted loudspeaker signals
04/10/2003US20030068011 Voice activated diagnostic imaging control user interface
04/10/2003US20030067841 Digital signal demodulator calibration system and method for optical hydrophones
04/10/2003US20030067249 Ultrasound transducer array
04/10/2003US20030067197 Chair for a body-sensible acoustic device
04/10/2003US20030066705 Bass reflex acoustical enclosure with two speakers to enhance acoustical performance
04/10/2003DE20300041U1 Optimized lay-out for top end Hi-Fi loud speaker system, includes back-to-back base speakers mounted on panel in corner of room
04/09/2003EP1300047A2 Filter
04/09/2003EP1299988A2 Listening device
04/09/2003EP1299940A1 Mechanical-to-acoustical transformer and multi-media flat film speaker
04/09/2003EP1125473B1 Acoustic device according to bending wave principle
04/09/2003EP1016315A4 Sound capturing method and device
04/09/2003CN2544488Y Loudspeaker casing
04/09/2003CN2544487Y Flash lamp device for loudspeaker casing
04/09/2003CN2544486Y Telescopic flexible hose type microphone
04/09/2003CN1409579A Energy saving acoustic system with low cost, high electroacoustic conversion efficiency and constant playback sound pressure
04/09/2003CN1409578A Module low voice array
04/09/2003CN1409528A Portable communication machine and microphone device for same machine
04/08/2003US6546264 Helmet headphones
04/08/2003US6546106 Acoustic device
04/08/2003US6545948 Submersible loudspeaker
04/08/2003US6545947 Acoustic matching material, method of manufacture thereof, and ultrasonic transmitter using acoustic matching material
04/08/2003US6545047 Treatment of animal carcasses
04/05/2003CA2406684A1 Ultrasound transducer array
04/03/2003WO2003028404A1 Speaker, speaker module, and electronic equipment using the speaker module
04/03/2003US20030064687 Portable communication apparatus and microphone device for the apparatus
04/03/2003US20030063767 Device for reducing structural-acoustic coupling between the diaphragm vibration field and the enclosure acoustic modes
04/03/2003US20030063766 Speaker enclosure
04/03/2003US20030063759 Directional audio signal processing using an oversampled filterbank
04/03/2003US20030063757 Acoustical speaker apparatus
04/02/2003EP1298889A2 Portable communication apparatus and microphone device for the apparatus
04/02/2003EP1298642A2 Ultrasonic probe containing an element for controlling the sonic speed
04/02/2003EP1297904A1 Electromagnetic induction type actuator and portable communications device
04/02/2003CN2543314Y Improvement of earphone structure
04/02/2003CN2543311Y Loudspeaker box for baggage carrier of vehicle
04/02/2003CN2543310Y Earphone
04/02/2003CN1408194A Acoustically asymmetric bandpass loudspeaker with multiple acoustic filters
04/02/2003CN1407786A Earphone
04/02/2003CN1407392A Audiovisual system in theatre
04/01/2003US6542757 Headset docking device
04/01/2003US6542721 Cellular telephone, personal digital assistant and pager unit
04/01/2003US6542617 Speaker
04/01/2003US6542616 Portable information processing apparatus and speaker unit
04/01/2003US6542615 Headphone
04/01/2003US6542614 Boomless hearing/speaking configuration for sound receiving means
03/2003
03/27/2003WO2003026347A2 Loudspeaker systems
03/27/2003WO2003026344A2 Acoustic device
03/27/2003WO2003026342A2 A headphone
1 ... 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 ... 422