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