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)
05/2003
05/15/2003WO2003041446A2 Adjustable speaker box for the sports bar of a vehicle
05/15/2003WO2003041285A1 Vehicle accessory microphone
05/15/2003WO2003040217A1 Insulating material for sound waves
05/15/2003WO2003039676A1 A focusing ultrasonic source
05/15/2003WO2002045463A3 Miniature silicon condenser microphone and method for producing same
05/15/2003US20030091211 Ported loudspeaker enclosure
05/15/2003US20030091210 Communications earpiece and method of attenuating acoustical signals
05/15/2003US20030091209 Headphone
05/15/2003US20030091208 Microphone with a variable resistance switch
05/15/2003US20030091206 Ported loudspeaker enclosure
05/15/2003US20030091199 Sound masking system
05/15/2003US20030089549 Speaker damper
05/15/2003CA2433019A1 Adjustable speaker box for the sports bar of a vehicle
05/14/2003CN2550986Y Loudspeaker front cover
05/14/2003CN1418448A Adaptive microphone matching in multi-microphone directional system
05/14/2003CN1418040A Hydrophone with automatic supression function beyond the adjustable immersion threshold
05/14/2003CN1418039A Head earphone
05/14/2003CN1108529C Circularly symmetric and zero reduudancy planar array having broad frequency range applications
05/13/2003US6563929 Woofer having ornamental flashing lights
05/13/2003US6563254 Inertial/audio unit and construction
05/13/2003US6561823 Holder of small size sound device
05/13/2003US6561311 Speaker cabinet
05/13/2003CA2293937C Combination connector and microphone
05/08/2003WO2003039191A1 Hands-free microphone and speaker phone accessory
05/08/2003WO2003039190A1 Headphone
05/08/2003WO2003039189A1 Transmitter/receiver worn on strap of mask or cap
05/08/2003WO2003038776A1 Light controller and system for sensitivity control
05/08/2003US20030086573 Method for reproducing sound signals and sound reproducing system
05/08/2003US20030086563 Telephone sanitary cover
05/08/2003US20030086337 Hydrophone with automatic inhibition in case an adjustable immersion threshold is exceeded
05/08/2003US20030085070 Waterproof earphone
05/08/2003DE20303179U1 Loud speaker housing in the form of a ball and adapted to be connected in modular form to other housings
05/08/2003CA2479600A1 Transmitter/receiver worn on strap of mask or cap
05/07/2003EP1309224A2 Capacitor microphone and portable telephone using the capacitor microphone
05/07/2003EP1308220A1 Electromagnetic induction type actuator device and mounting structure therefor and pda (personal digital assistant)
05/07/2003EP1307761A2 Method for localising direction and localisation arrangement
05/07/2003EP1142059B1 A communication device
05/07/2003CN2549676Y Speaker casing structure
05/07/2003CN2549675Y Improved head-wearable earpiece
05/07/2003CN1416662A Microphone structure
05/07/2003CN1416661A 扬声器箱 Speaker box
05/07/2003CN1416295A Loudspeaker and method of mfg. such loudspeaker
05/06/2003US6560468 Cellular telephone, personal digital assistant, and pager unit with capability of short range radio frequency transmissions
05/06/2003US6560348 Contact connections
05/06/2003US6560346 Pipe microphone device
05/06/2003US6560345 Microphone
05/06/2003US6560344 Miniature surface mounted directional microphone assembly
05/06/2003US6560343 Speaker system
05/06/2003US6560335 Sanitary phone cover
05/06/2003US6557665 Active dipole inlet using drone cone speaker driver
05/06/2003US6557664 Loudspeaker
05/02/2003EP1307070A2 Connector for speaker
05/02/2003EP1307069A2 Casing for an electronic device and process of assembly of such a casing
05/02/2003EP1307068A1 Casing for an electronic device and process of assembly of such a casing
05/02/2003EP1305977A2 A microphone assembly
05/02/2003EP1305976A1 Recovery of metals by incineration of metal containing basic ion exchange resin
05/02/2003EP1113916B1 Rotary acoustic horn with sleeve
05/02/2003EP0720810B1 Rotary low-frequency sound reproducing apparatus and method
05/01/2003WO2003037035A1 Sound masking system
05/01/2003WO2003037034A1 Device for capturing and restoring sound using several sensors
05/01/2003WO2002087279A3 Matching an acoustic driver to an acoustic load in an acoustic resonant system
05/01/2003US20030083573 Ultrasonic probe, ultrasonic imaging apparatus and ultrasonic imaging method
05/01/2003US20030083112 Transceiver adapted for mounting upon a strap of facepiece or headgear
05/01/2003US20030083058 Cellular phone that exposes the user's brain to much less microwave radiation than ordinary cellular phones with the help of a proxy (intermediary) device
05/01/2003US20030081807 Speaker and method for manufacturing the speaker
05/01/2003US20030081806 Headphone earpiece cover
05/01/2003US20030081805 Insert earphone
05/01/2003US20030081801 Capacitor microphone and portable telephone using the capacitor microphone
05/01/2003US20030081800 Flat panel sound radiator with supported exciter and compliant surround
05/01/2003US20030081795 Speaker mounting structure of head rest in vehicle
05/01/2003US20030081794 Insert earphone
05/01/2003US20030080887 Aggregate beamformer for use in a directional receiving array
05/01/2003US20030080686 Light controller and system for sensitivity control
05/01/2003US20030079600 Arrangement of a rythmic apparatus with a vehicle sound apparatus, rhythmic accompaniment method and electronic transducer
05/01/2003US20030079275 Wire band earmuff
04/2003
04/30/2003CN2548383Y 多功用麦克风装置 Multi-function microphone device
04/30/2003CN2548380Y 耳机麦克风端子定位结构 Headset microphone terminal positioning structure
04/30/2003CN2548379Y Hand-free apparatus pivoting mechanism
04/30/2003CN2548378Y Earphone microphone folding mechanism
04/30/2003CN1414816A Head-hoop earphone device
04/30/2003CN1414781A Casing of electronic device and method for assembing the casing
04/30/2003CN1107387C Modular unit headset
04/30/2003CA2407160A1 Flat panel sound radiator with supported exciter and compliant surround
04/29/2003US6556687 Super-directional loudspeaker using ultrasonic wave
04/29/2003US6556684 Spa audio system
04/29/2003US6555947 Pressure-balanced underwater acoustic transducer
04/29/2003US6554962 Loudspeaker diaphragm
04/29/2003US6554098 Panel speaker with wide free space
04/29/2003US6554097 Low-radiation headphone
04/29/2003CA2260787C Flexural plate sound transducer having low resonant frequency
04/24/2003WO2003034783A2 Method for manufacturing an ear device and ear device
04/24/2003WO2003034782A2 Modular headset for cellphone or mp3 player
04/24/2003WO2003034781A2 Bass frequency amplifying apparatus
04/24/2003WO2003034780A2 Signal processing device for acoustic transducer array
04/24/2003WO2003034779A1 Earphone for portable electronic apparatus
04/24/2003WO2003034022A1 Sound simulator and sound simulating method
04/24/2003WO2003032817A2 Acoustically generated images having selected components
04/24/2003WO2002084982A3 Radio/telephone ear-piece
04/24/2003WO2002078393A3 A directional receiver for hearing aids
04/24/2003WO2002047430A3 Sound reflector for a bicyclist
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