| Patents for H04R 1 - Details of transducers (42,173) |
|---|
| 03/06/2002 | CN2481100Y Lower piece and holder assembling structure for microphone |
| 03/06/2002 | CN2481099Y Surface stuck electromagnetic sound sensor |
| 03/06/2002 | CN2481061Y Radio microphone receiver capable of recharging battery of microphone |
| 03/06/2002 | CN2481059Y Retaining ring for earphone |
| 03/06/2002 | CN1339237A Sound generator with a pump actuator |
| 03/06/2002 | CN1339236A Exciter |
| 03/06/2002 | CN1339235A Resonant panel-form loudspeakers |
| 03/06/2002 | CN1339234A Loudspeaker |
| 03/06/2002 | CN1338884A 转换器 Converters |
| 03/06/2002 | CN1338231A Flexible wire clipper |
| 03/06/2002 | CN1080530C Miniature speeching body |
| 03/06/2002 | CN1080432C Recording and/or reproducing apparatus |
| 03/05/2002 | US6353670 Actively control sound transducer |
| 02/28/2002 | WO2002017679A1 Power efficient electrical stimulation |
| 02/28/2002 | WO2002015678A1 Method and device for communication with animal |
| 02/28/2002 | WO2001078442A3 Earphones and microphone (personal speaking device) that do not transmit or emit microwave radiation or any other dangerous radiation |
| 02/28/2002 | US20020025059 Diaphragm for speakers |
| 02/28/2002 | US20020025056 Wrist-carried information device |
| 02/28/2002 | US20020025050 Spa audio system operable with a remote control |
| 02/28/2002 | US20020025049 Vehicle loudspeaker |
| 02/28/2002 | US20020024713 Proximity switch and vehicle rearview mirror assembly incorporating the same and having a transparent housing |
| 02/28/2002 | CA2388699A1 Method and device for communication with animal |
| 02/28/2002 | CA2353251A1 Facing systems for a flat panel radiator |
| 02/28/2002 | CA2350247A1 System for delivering synchronized audio content to viewers of movies |
| 02/27/2002 | EP1181800A1 A housing for a transmitter/receiver, a transmitter/receiver and a method of its assembly |
| 02/27/2002 | EP1180975A1 Instrument for medical purposes |
| 02/27/2002 | EP0442969B1 Wholly microfabricated biosensors and process for the manufacture and use thereof |
| 02/27/2002 | CN2479704Y Earphone signal device |
| 02/27/2002 | CN2479683Y Cordless connected microphone |
| 02/26/2002 | US6351733 Method and apparatus for accommodating primary content audio and secondary content remaining audio capability in the digital audio production process |
| 02/26/2002 | US6351543 Micro-microphone |
| 02/26/2002 | US6351542 Loudspeakers with panel-form acoustic radiating elements |
| 02/26/2002 | US6351541 Electrostatic transducer |
| 02/26/2002 | US6349792 Sound enhancing speaking cabinet for a removable speaker assembly |
| 02/21/2002 | US20020021818 Speaker Structure |
| 02/21/2002 | US20020021815 Two-stage phasing plug system in a compression driver |
| 02/21/2002 | US20020021800 Headset communication unit |
| 02/21/2002 | US20020021056 Ultrasonic wave transmitter/receiver |
| 02/21/2002 | US20020020045 Cord clip |
| 02/20/2002 | EP1180914A2 Flat panel sound radiator |
| 02/20/2002 | EP1180913A2 Loudspeaker device |
| 02/20/2002 | EP1180319A1 Adjustable brace, e.g., ear-brace |
| 02/20/2002 | EP0988011A4 Ear phone assembly for use with a hearing screener |
| 02/20/2002 | CN1337140A Headphone |
| 02/20/2002 | CN1336659A Method and device for checking close of switch |
| 02/19/2002 | US6347776 Multi-directional mounting bracket |
| 02/19/2002 | US6347412 Sound reflector for a bicyclist |
| 02/17/2002 | CA2354221A1 Flat panel sound radiator with special edge details |
| 02/14/2002 | WO2002013575A1 Bending wave loudspeaker |
| 02/14/2002 | WO2002013573A1 Loudspeaker device |
| 02/14/2002 | WO2002013492A2 An earphone for a cellular phone |
| 02/14/2002 | WO2002013162A1 Audible communication system |
| 02/14/2002 | WO2002011904A1 Electromagnetic induction type actuator device and mounting structure therefor and pda (personal digital assistant) |
| 02/14/2002 | WO2001065888A3 A system for accommodating primary and secondary audio signal |
| 02/14/2002 | WO2001063964B1 Induction loop |
| 02/14/2002 | WO2001057469A3 System for securing data on a data carrier |
| 02/14/2002 | WO2001039541A3 Flat loudspeaker system for bass reproduction |
| 02/14/2002 | US20020018577 Speaker apparatus |
| 02/14/2002 | US20020018576 Structure around a speaker unit and applied electric or electronic apparatus thereof |
| 02/14/2002 | US20020018574 Information processing device and speaker unit applicable thereto |
| 02/14/2002 | US20020017424 Pop shield for microphone |
| 02/14/2002 | DE10037594A1 Gerät der Audioelektrik oder -elektronik oder Komponente desselben The same unit of electrical or electronics or audio component |
| 02/14/2002 | CA2418692A1 An earphone for a cellular phone |
| 02/13/2002 | EP1179968A2 Structure around a speaker unit |
| 02/13/2002 | EP1179967A2 Flat panel sound radiator and assembly system |
| 02/13/2002 | EP1179307A2 Cord clip |
| 02/13/2002 | EP1179283A2 Bending wave loudspeakers |
| 02/13/2002 | CN2476912Y Reflection-type stero-sound cover capable of positioning sound field |
| 02/13/2002 | CN2476911Y Impedance converter for electronic-type capacity microphone |
| 02/13/2002 | CN2476908Y Earphone used for mobile phone |
| 02/13/2002 | CN1336091A Passive radiator with mass elements |
| 02/12/2002 | US6345685 Loudspeaker system |
| 02/07/2002 | WO2002011494A2 System for integrating mid-range and high frequency acoustic sources in multi-way loudspeakers |
| 02/07/2002 | WO2002011493A2 Two-stage phasing plug system in a compression driver |
| 02/07/2002 | WO2002011492A2 Head-set assembly |
| 02/07/2002 | WO2002011438A1 Aiming a device at a sound source |
| 02/07/2002 | WO2001080616A3 High-frequency current supressor capable of being readily attached to cable or the like and earphone system using the same |
| 02/07/2002 | WO2001049066A3 Headphones with integrated microphones |
| 02/07/2002 | US20020015501 Noise reducing |
| 02/07/2002 | US20020014369 System for integrating mid-range and high frequency acoustic sources in multi-way loudspeakers |
| 02/07/2002 | US20020014368 Wave shaping sound chamber |
| 02/07/2002 | DE10036932A1 Lautsprecheranordnung Speaker assembly |
| 02/06/2002 | EP1178702A2 Wave shaping sound chamber |
| 02/06/2002 | EP1178700A2 Damping elements for loudspeaker boxes |
| 02/06/2002 | EP1178456A2 A passive voice-activated microphone and transceiver system |
| 02/06/2002 | EP1177837A2 Ultrasonic diagnostic apparatus |
| 02/06/2002 | EP1177705A2 Bone conduction voice transmission apparatus and system |
| 02/06/2002 | EP1177704A2 Sounders for fire alarm systems |
| 02/06/2002 | CN2476152Y Computer multimedia loudspeaker box with ratio function |
| 02/06/2002 | CN2476151Y Multifunctional audio device for conference |
| 02/06/2002 | CN2476138Y Portable computer active loudspeaker box |
| 02/05/2002 | US6345102 Vehicle loudspeakers |
| 01/31/2002 | WO2002009486A2 Acoustic structures |
| 01/31/2002 | WO2002009271A2 Apparatus for ac-to-dc conversion which provides a signed dc signal |
| 01/31/2002 | WO2001020948A3 Mems digital-to-acoustic transducer with error cancellation |
| 01/31/2002 | US20020012441 Body set type speaker unit |
| 01/31/2002 | US20020012440 Headphone having a cord reel |
| 01/31/2002 | US20020012439 Diaphragm-type bass loudspeaker |
| 01/31/2002 | US20020011379 Speaker enclosure venturi expander |
| 01/31/2002 | DE10035627A1 Loudspeaker with circumferential sound radiation comprises at least one sound converter with vertically oriented membrane, and a conical diffuser with a concave side surface |