Patents for H04R 9 - Transducers of moving-coil, moving-strip, or moving-wire type (11,486) |
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03/27/2002 | CN2483924Y Whole-tone coaxial cophased loudspeaker |
03/27/2002 | CN1342383A Electronic apparatus |
03/27/2002 | CN1342031A 信号转换器 Signal converter |
03/21/2002 | WO2002023944A2 Acoustic playback device |
03/21/2002 | US20020034315 Loudspeaker spider, method of making it and loudspeaker incorporating it |
03/21/2002 | US20020034314 Loudspeaker driver |
03/21/2002 | US20020033681 Multifunction acoustic device |
03/20/2002 | CN1340987A Double-face loudspeaker |
03/19/2002 | US6359997 Loudspeaker having radially magnetized magnetic ring |
03/19/2002 | US6359996 Speaker device |
03/19/2002 | US6359541 Surface-mounted electromagnetic sound generator |
03/14/2002 | WO2002021880A1 Speaker |
03/14/2002 | WO2001047321A3 Regressively hinged spider |
03/14/2002 | WO2001031974A3 Loudspeaker with improved cooling structure |
03/14/2002 | US20020031239 Multifunction acoustic device |
03/14/2002 | DE10053252A1 Shaped part for holding exciter for flat membrane loudspeaker, has bridges in peripheral groups in different planes at different distances from sound emitting membrane |
03/14/2002 | DE10043294A1 Elektromechanischer Wandler, insbesondere für den Einbau in den Ansaugtrakt einer Brennkraftmaschine Electromechanical transducer, in particular for installation in the intake tract of an internal combustion engine |
03/13/2002 | EP1187510A2 Multifunction acoustic device |
03/13/2002 | EP1187509A1 Signal converter functioning as a loudspeaker or a receiver and as a vibrator |
03/13/2002 | EP1186205A2 High definition transducer |
03/13/2002 | EP1186204A2 Electroacoustic transducer having a moving coil and having elastic holding elements for the connecting leads of the moving coil |
03/13/2002 | EP0951801B1 Loudspeakers |
03/13/2002 | CN1340282A Loudspeaker |
03/07/2002 | WO2002019763A2 Loudspeaker with a diaphragm having integral vent bores |
03/07/2002 | WO2002019759A1 Bone conduction vibrator |
03/07/2002 | WO2002019758A2 Electromechanic transducer, especially for mounting in the intake pipe of an internal combustion engine |
03/07/2002 | WO2001008447A3 Flat panel speaker |
03/07/2002 | US20020027999 Acoustic device |
03/07/2002 | US20020027998 Electroacoustic transducer |
03/07/2002 | US20020027491 Signal converter |
03/06/2002 | EP1183905A2 Mounting of the coil in an electroacoustic transducer |
03/06/2002 | CN2481101Y Module type frame for plane loadspeaker |
03/06/2002 | CN1339236A Exciter |
02/28/2002 | WO2002017676A1 Speaker and magnetic circuit used for the speaker |
02/28/2002 | US20020025049 Vehicle loudspeaker |
02/27/2002 | EP1182907A2 Electroacoustic transducer |
02/27/2002 | CN1338194A Vibration exciter for creating bending wave vibration |
02/26/2002 | US6351544 Regressively hinged spider |
02/26/2002 | US6351543 Micro-microphone |
02/26/2002 | US6351542 Loudspeakers with panel-form acoustic radiating elements |
02/21/2002 | WO2002015639A2 Loudspeaker having adjustable motor strength |
02/21/2002 | US20020021821 Linear vibrating device and speaker equipped with the same |
02/21/2002 | US20020021820 Loudspeaker |
02/21/2002 | US20020021819 Electroacoustic transducer |
02/21/2002 | US20020021818 Speaker Structure |
02/21/2002 | US20020021812 Loudspeaker |
02/20/2002 | CN1337049A Isotropic compound and method for prepn. thereof, isotropic bonded magnet, rotary machine and magnet roll |
02/14/2002 | WO2001049065A3 Air flow control device for loudspeaker |
02/14/2002 | US20020018577 Speaker apparatus |
02/14/2002 | US20020017423 Speaker and method of assembling the speaker |
02/13/2002 | EP1179967A2 Flat panel sound radiator and assembly system |
02/13/2002 | CN2476914Y Structure of dust-proof cover for loudspeaker |
02/12/2002 | US6347149 Driver for a flat acoustic panel |
02/07/2002 | WO2002011495A2 Loudspeaker coil suspension system |
02/06/2002 | EP1178703A2 Speaker and method of assembling the speaker |
02/06/2002 | EP1178701A2 Loudspeaker |
02/06/2002 | CN2476154Y Hi-Fi loudspeaker |
01/31/2002 | WO2002009470A2 Electroacoustic converter |
01/30/2002 | EP1175669A1 Systems and methods for passive pressure-compensation for acoustic transducers |
01/30/2002 | EP1010352B1 Vibration exciter |
01/30/2002 | CN2475240Y Improved structure of load-speak |
01/29/2002 | US6343136 Speaker apparatus and manufacturing method thereof |
01/29/2002 | US6343128 Dual cone loudspeaker |
01/29/2002 | US6342831 Electronic apparatus |
01/28/2002 | CA2345775A1 Flat panel sound radiator and assembly system |
01/24/2002 | US20020009206 Microphone assembly |
01/24/2002 | US20020008602 Electromagnetic actuator mounting structure |
01/23/2002 | EP1175123A2 Electric acoustic converter having a rear surface terminal |
01/23/2002 | EP1174002A2 Moving coil driver |
01/23/2002 | EP1174001A2 Bending- wave panel loudspeakers |
01/23/2002 | CN2473842Y Loudspeaker with open type magnetic return structure |
01/22/2002 | US6341167 Speaker |
01/17/2002 | US20020005317 Speaker apparatus |
01/16/2002 | EP1173042A2 Compound loudspeaker drive unit having a magnet system |
01/16/2002 | CN1331554A 推挽式扬声系统 Push-speaker system |
01/11/2002 | CA2352732A1 Compound loudspeaker drive unit having a magnet system |
01/10/2002 | WO2002003748A2 Electroacoustic transducer with replaceable diaphragm |
01/10/2002 | WO2002003746A2 A microphone assembly |
01/10/2002 | WO2001037607A3 Offset apex spider |
01/09/2002 | CN2471049Y Improved structure of ball-top loudspeaker |
01/03/2002 | WO2002001914A1 Low profile speaker and system |
01/03/2002 | WO2002001913A1 Compact high performance speaker |
01/03/2002 | WO2001056329A3 Electroacoustic transducer having a moving coil and having elastic holding elements for the connecting leads of the moving coil |
01/02/2002 | CN2469648Y Speaker made of ultramagnetostriction materials |
01/02/2002 | CN1329809A Loudspeaker |
01/02/2002 | CN1329456A Loadspeaker structure |
01/02/2002 | CN1329429A Electroacoustic changer with back terminal |
12/27/2001 | US20010055402 Loudspeakers |
12/26/2001 | CN2468251Y Handfree radio microphone apparatus |
12/26/2001 | CN2467358Y Alarmer drive for vehicle and domestic use |
12/26/2001 | CN1328762A Acoustic device |
12/26/2001 | CN1076943C 电声变换器 Electro-acoustic transducer |
12/25/2001 | US6333575 Vibration exciter |
12/25/2001 | US6332262 Method of fabricating a loudspeaker suspension device |
12/20/2001 | WO2001097561A2 Loudspeaker |
12/20/2001 | WO2001096221A1 Method and device for picking up stacks of blanks |
12/20/2001 | WO2001096035A1 Electromagnetic induction type actuator and portable communications device |
12/20/2001 | US20010053233 Electric acoustic converter having a rear surface terminal |
12/19/2001 | EP0979592A4 Slotted diaphragm loudspeaker |
12/19/2001 | CN1327704A Speaker device |