| Patents for H04R 1 - Details of transducers (42,173) |
|---|
| 08/29/2001 | CN2445535Y New structure loudspeaker box |
| 08/29/2001 | CN1310929A Apparatus including an electroacoustic transducer having terminal contacts which extend in the direction of the transducer axis and including a printed circuit board having mating contacts |
| 08/29/2001 | CN1310928A Acoustic damping material |
| 08/29/2001 | CN1310575A Loudspeaker |
| 08/28/2001 | US6282298 Acoustic device |
| 08/28/2001 | US6282287 Communication earpiece without impulse and high frequency noise |
| 08/28/2001 | US6279678 Speaker assembly |
| 08/28/2001 | CA2193331C Microphone systems of reduced in situ acceleration sensitivity |
| 08/23/2001 | WO2001062043A1 Acoustically asymmetric bandpass loudspeaker with multiple acoustic filters |
| 08/23/2001 | WO2001062041A1 Sub-woofer system |
| 08/23/2001 | WO2001062040A2 Open back acoustic speaker module |
| 08/23/2001 | WO2001061440A1 Portable data processing terminal |
| 08/23/2001 | DE10007845A1 Fixing device for attaching earphones and/or microphones to clothing, has disk shaped permanent magnet arranged at fastening location of earphones within clothing |
| 08/23/2001 | CA2400423A1 Acoustically asymmetric bandpass loudspeaker with multiple acoustic filters |
| 08/22/2001 | EP1126434A1 Body-wearable type music reproducing apparatus |
| 08/22/2001 | EP1125473A1 Acoustic device according to bending wave principle |
| 08/22/2001 | EP1125472A1 Loudspeakers comprising a phase uncorrelated diffuse sound source |
| 08/22/2001 | EP1125471A1 Microphone |
| 08/22/2001 | EP0803170A4 Integral radio and infrared assistive listening device |
| 08/22/2001 | CN2444381Y Drawer type speciality cabinet for machine |
| 08/22/2001 | CN2444368Y Audio radio earphone |
| 08/22/2001 | CN2444367Y Fixing device capable of regulating direction of loudspeaker |
| 08/22/2001 | CN2444366Y Microphoone capable of random clamping hanging |
| 08/22/2001 | CN1070017C Image display incorporating loudspeakers |
| 08/21/2001 | US6278789 Frequency selective acoustic waveguide damping |
| 08/21/2001 | US6278787 Loudspeakers |
| 08/21/2001 | US6278657 Folded sagnac sensor array |
| 08/21/2001 | CA2038737C Methods and electro-acoustic transducers for transmitting low frenquency acoustic waves in a liquid |
| 08/16/2001 | WO2001024574B1 Loudspeaker system |
| 08/16/2001 | WO2001010168A3 Loudspeaker |
| 08/16/2001 | US20010013729 Vibration generator for reporting and portable communication equipment using the same |
| 08/16/2001 | EP1123633A1 Method for sound reproduction and pillar loudspeaker |
| 08/15/2001 | CN2443566Y Colour changeable lamp device mated with loadspeaker |
| 08/15/2001 | CN2443565Y Concealed insert earphone |
| 08/15/2001 | CN2443564Y Folding equi-width horn loadspeak box |
| 08/15/2001 | CN1308831A High power ultrasonic transducer |
| 08/15/2001 | CN1308830A Loudspeaker drive unit having a resonant panel-form member |
| 08/15/2001 | CN1308829A Acoustic device using bending wave modes |
| 08/15/2001 | CN1069809C Method for mfg. of voice-box body and product thereof |
| 08/14/2001 | US6275598 Sound reproduction device |
| 08/14/2001 | US6275597 Loudspeaker system having a bass-reflex port |
| 08/14/2001 | US6275448 Pressure-compensated acceleration-insensitive hydrophone |
| 08/14/2001 | CA2272179C Earphone-microphone system having double ear braces |
| 08/14/2001 | CA2243728C Earphone-microphone-earmuff assembly |
| 08/14/2001 | CA2156166C Rotary low-frequency sound reproducing apparatus and method |
| 08/09/2001 | WO2001058208A2 Support system for a portable device |
| 08/09/2001 | WO2001058207A2 Portable device for transmitting sound |
| 08/09/2001 | WO2001057469A2 System for securing data on a data carrier |
| 08/09/2001 | WO2000076031A3 Passive radiator with mass elements |
| 08/09/2001 | WO2000069215B1 Bone conduction voice transmission apparatus and system |
| 08/09/2001 | WO2000008630A8 Heat dissipating device, especially for high performance ultrasonic transducers |
| 08/09/2001 | US20010012374 Microphone module |
| 08/09/2001 | US20010012372 Electro-acoustic transducer |
| 08/09/2001 | EP1145382A3 Passive radiator with mass elements |
| 08/08/2001 | EP1122977A2 Microphone |
| 08/08/2001 | EP1122976A1 Retention system for a portable device |
| 08/08/2001 | EP1122975A1 Portable device for transmitting sound |
| 08/08/2001 | EP1122974A1 Illuminating assembly with built-in panel speaker |
| 08/08/2001 | EP1122973A2 Digital pulse-width-modulation generator |
| 08/08/2001 | EP1121833A1 Resonant panel loudspeakers |
| 08/08/2001 | EP1121832A1 Noise control device for a boom mounted noise-cancelling microphone |
| 08/08/2001 | EP1121763A1 A method to use acoustic signals for computer communications |
| 08/08/2001 | EP0724761B1 An active noise cancellation apparatus for a motor vehicle |
| 08/08/2001 | CN2442470Y Art voice box |
| 08/08/2001 | CN1307791A Resonant panel-form loudspeaker |
| 08/08/2001 | CN1307438A Loudspeaker system |
| 08/07/2001 | US6272360 Remotely installed transmitter and a hands-free two-way voice terminal device using same |
| 08/07/2001 | US6272229 Hearing aid with adaptive matching of microphones |
| 08/07/2001 | US6272227 Simultaneous two-way communication apparatus using ear microphone |
| 08/02/2001 | WO2001056329A2 Electroacoustic transducer having a moving coil and having elastic holding elements for the connecting leads of the moving coil |
| 08/02/2001 | WO2001055833A1 Spatialized audio system for use in a geographical environment |
| 08/02/2001 | WO2001054541A1 Inflatable speaker assembly |
| 08/02/2001 | WO2001003468A3 Acoustic protective cover assembly |
| 08/02/2001 | US20010010728 Electroacoustic transducer having a moving coil and having elastic holding elements for the connecting leads of the moving coil |
| 08/02/2001 | US20010010727 Personal earphone assembly for mounting upon eyeglasses |
| 08/02/2001 | US20010010726 Miniature microphone component with conductive rubber contacts |
| 08/02/2001 | CA2398624A1 Inflatable speaker assembly |
| 08/01/2001 | EP1120995A2 Electroacoustic transducer and method of manufacturing the same |
| 08/01/2001 | EP1120994A2 Flat loudspeaker arrangement |
| 08/01/2001 | EP1120993A2 Headphone with special high frequency transmission |
| 08/01/2001 | EP1120992A2 Speaker system |
| 08/01/2001 | EP1120990A1 Transmitter/receiver comprising bone-conduction speaker |
| 08/01/2001 | EP1008277B1 Sound pickup device, specially for a voice station |
| 08/01/2001 | CN2441273Y Skin contacting microphone |
| 08/01/2001 | CN2441272Y 无源耳机 Passive Headset |
| 08/01/2001 | CN1306731A Appts. having housing which accommodates sound transducer and which has passage |
| 07/31/2001 | US6269168 Speaker apparatus |
| 07/31/2001 | US6267600 Microphone and receiver for automatic accompaniment |
| 07/26/2001 | WO2001054465A1 System and method for a combined rotatable mechanical and electrical speaker mounting system |
| 07/26/2001 | WO2001054455A1 Planar loudspeaker |
| 07/26/2001 | WO2001054450A2 Transducer in particularly for use in acoustic devices |
| 07/26/2001 | WO2000076270B1 High definition transducer |
| 07/26/2001 | WO2000069213A3 Sounders for fire alarm systems |
| 07/26/2001 | US20010009586 Electroacoustic transducer and method of manufacturing the same |
| 07/26/2001 | US20010009540 Portable information processing apparatus with a plurality of speakers |
| 07/26/2001 | DE10001410A1 Flat loudspeaker arrangement for e.g. wall of building, comprises multiple loudspeakers which are arranged seamlessly and work on multi-resonance flexible shaft principle |
| 07/26/2001 | CA2395022A1 New transducers limited |
| 07/25/2001 | CN1305333A Acoustic equipment, free designed cover unit of acoustic equipoment and method of making acoustic equipment |
| 07/25/2001 | CN1305300A Sound producing apparatus such as telephone |
| 07/25/2001 | CN1069016C Loud speaker system for TV. set |