Patents
Sitemap › H04 - Electric communication technique › H04R - Loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers; Deaf-aid sets; Public address systems › H04R 9 - Transducers of moving-coil, moving-strip, or moving-wire type
Patents for H04R 9 - Transducers of moving-coil, moving-strip, or moving-wire type (11,486)
11/2007
11/15/2007WO2007129685A1 Speaker
11/15/2007WO2007129334A1 Loudspeaker with cooling system
11/15/2007WO2007128748A1 Dome loudspeaker
11/15/2007US20070263895 Microphone and Method of Manufacturing Microphone
11/15/2007US20070263886 Transducer
11/15/2007DE102006021552A1 Kalotten-Lautsprecher Dome loudspeakers
11/14/2007EP1854332A2 Electromagnetic lever diaphragm audio transducer
11/14/2007CN200976673Y Tape type high pitch loudspeaker of radial magnetic field
11/14/2007CN200976672Y Non-circular moving coil-type minitype phonation device
11/14/2007CN101072454A Miniature loudspeaker and magnetic circuit having integrated air flow passage
11/14/2007CN101072453A A small loudspeaker
11/14/2007CN101071566A Small array microphone system, noise reducing device and reducing method
11/08/2007WO2007019580A3 A system and method for integrating transducers into body support structures
11/08/2007US20070258615 Damper of rectangular-shaped slim speaker
11/07/2007EP1851993A1 Audio transducer component
11/07/2007CN200973173Y Vabration acoustical generator
11/07/2007CN200973172Y Variable impedance and power type loudspeaker
11/07/2007CN101069452A 扬声器 Speaker
11/07/2007CN100348074C Low cost motor structure for rare-earth-magnet loudspeakers
11/06/2007US7292707 Loudspeaker
11/06/2007US7292695 Bone conductive speaker
11/06/2007US7290639 Method for manufacturing speaker-use center cap
10/2007
10/31/2007DE202007010759U1 Lautsprecher Speaker
10/31/2007DE102006031842B3 Tonabnehmersystem zur Abtastung von Analogschallplatten Pickup System for detection of analog records
10/31/2007CN200969678Y Receiver handfree compatible with loudspeaker and its power amplifying and controlling circuit
10/31/2007CN200969677Y Internal magnetic and internal moving-coil type receiver handfree loudspeaker and power amplifier control circuit
10/31/2007CN200969676Y Novel coaxial synthesized magnetic circuit loudspeaker magnetic structure
10/31/2007CN200969675Y Open-type sounding device
10/31/2007CN101063966A Personal digital assistant machine with hold-free handset function and method thereof
10/30/2007US7289638 Electroacoustic microphone
10/30/2007US7289627 Hinge, and opening/closing type portable terminal device having the same
10/25/2007WO2007050219A3 Audio porting assembly
10/24/2007CN200966152Y Double movable coil double magnetic pole type loudspeaker and power amplifier control circuit
10/24/2007CN200966151Y Earphone handle-free bi-directional loudspeaker for mobile telephone and its power amplifier and control circuit
10/24/2007CN200966150Y Hollow magnetic core step III magnetic pole type loudspeaker
10/24/2007CN200966144Y Super-narrow double paper taper loudspeaker
10/24/2007CN101061748A Vibrating element for an electroacoustic transducer
10/24/2007CN101061747A Loudspeaker
10/24/2007CN101061746A Speaker
10/24/2007CN101060725A Damper of rectangular-shaped slim speaker
10/23/2007US7286681 Loudspeaker
10/23/2007US7285236 Injection method of inserting spring into multifunctional actuator
10/18/2007WO2007117200A2 Method for the manufacturing of balanced transducers
10/18/2007WO2007117045A1 Speaker, speaker device using the speaker, and electronic equipment and vehicle using the speaker
10/18/2007US20070242850 Loudspeaker with cone-coupled damper
10/18/2007US20070242849 Loudspeaker with high power efficiency and low resonance frequency
10/18/2007US20070242846 Outdoor decorative audio output system
10/18/2007DE202007008799U1 Dynamischer Lautsprecher Dynamic speaker
10/18/2007DE102006015803A1 Built-in loudspeaker has built-in ring for mounting in built-in opening and loudspeaker unit with neodymium magnet which is small but possess high-efficiency, where ring comprises cardanic system with inner and outer ring
10/17/2007EP1845750A1 Speaker
10/17/2007CN200962668Y Electrical sound, high conversion rate, high sound quality, dual-magnetic pole, and dual-dynamic loop speaker and power amplification control circuit
10/17/2007CN200962667Y Dual dynamic coil and dual magnetic pole speaker
10/17/2007CN101057524A 扬声器 Speaker
10/17/2007CN101056478A Run-through speaker
10/16/2007US7283642 Moving-coil electrodynamic motor for a loudspeaker, loudspeaker and pole piece
10/16/2007US7283637 Exciting device
10/11/2007WO2007114434A1 Damper for speaker and speaker using the damper
10/11/2007WO2007047701A3 Acoustically communicating data signals across an electrical isolation barrier
10/11/2007US20070237353 Magnetically tapered air gap for electromagnetic transducer
10/11/2007US20070237352 Miniature loudspeaker and magnetic circuit having integrated air flow passage
10/11/2007US20070237351 Self-cooling electromagnetic transducer
10/11/2007US20070237350 Dynamic loudspeaker
10/11/2007US20070237348 Shielded microphone for mobile communications device
10/11/2007US20070237340 Microphone for Surround-Recording
10/11/2007DE202007011537U1 Resonanzlautsprecher Resonance speaker
10/10/2007EP1843630A1 Electrodynamic electroacoustic transducer and electronic device
10/10/2007EP1843629A1 Loudspeaker damper, manufacturing method thereof, and loudspeaker and electronic device using the same
10/10/2007EP1843628A1 Miniature loudspeaker and magnetic circuit having integrated air flow passage
10/10/2007CN200959676Y Internal and external double-magnetic hollow magnetic-cored loundspeaker
10/10/2007CN200959675Y Double voice-coil loundspeaker and amplifying and controlling circuit
10/10/2007CN200959674Y Small thin large-power loundspeaker with high-sensitivity and voice-quality and amplifying and controlling circuit
10/10/2007CN200959673Y Internal and external double-magnetic loundspeaker with pickup-free headphone for cell phone and amplifying and controlling circuit
10/10/2007CN200959672Y Internal and external double-magnetic hollow magnetic cored loundspeaker and amplifying and controlling circuit
10/10/2007CN200959671Y Triple magnetic-pole and voice-coil integrated loundspeaker and amplifying and controlling circuit
10/10/2007CN200959670Y Triple-stage magnetic-pole loundspeaker and amplifying and controlling circuit
10/10/2007CN200959669Y Triple voice-coil integrated loundspeaker and amplifying and controlling circuit
10/10/2007CN200959668Y Two-way loundspeaker with pickup-free handphone for small telephone and amplifying and controlling circuit
10/10/2007CN200959667Y Loundspeaker with pickup-free handphone for mobile acoustic equipment and amplifying and controlling circuit
10/10/2007CN200959666Y Double magnetic-pole and voice-coil loundspeaker for cellphone and amplifying and controlling circuit
10/10/2007CN200959665Y Double-magnetic loundspeaker with pickup-free handphone for mobile acoustic equipment and amplifying and controlling circuit
10/10/2007CN200959664Y Double magnetic-pole and voice-coil loundspeaker for wireless telcommunication equipment and amplifying and controlling circuit
10/10/2007CN200959663Y Efficient loundspeaker with electric-energy converting into acoustic-energy for mobile telecommunication equipment and amplifying and controlling circuit
10/10/2007CN200959662Y Hollow magnetic-core loundspeaker of internal magnetic pole and voice coil and power-driven controlling circuit
10/10/2007CN200959661Y Double-winding and coiling cocurrent moving-coiling loundspeaker and amplifying and controlling circuit
10/10/2007CN200959660Y Laminated winding loundspeaker of voice coil internal wall fixed with baseboard and amplifying controlling circuit
10/10/2007CN200959659Y Impedance and power variable loundspeaker and its amplifying and controlling circuit
10/10/2007CN200959658Y Triple magnetic-pole and voice coil integrated loundspeaker
10/10/2007CN200959657Y Double-voice coil loundspeaker
10/10/2007CN200959656Y Internal magnetic and moving coil loundspeaker with pickup-free earphone
10/10/2007CN200959655Y Double-winding and coiling cocurrent moving-coiling loundspeaker
10/10/2007CN200959654Y Double-magnetic pole and moving coil loundspeaker of electroacoustic high-conversion rate and acoustics
10/10/2007CN200959653Y Triple-moving coiling hollow magnetic-core loundspeaker
10/10/2007CN200959652Y Thin small large-power loundspeaker with high sensitivity and acoustics
10/10/2007CN200959651Y Loundspeaker with pickup-free earphone
10/10/2007CN200959650Y Hollow magnetic-core internal magnetic-pole loundspeaker
10/10/2007CN101053278A Speaker and method of producing the same
10/10/2007CN101049594A 振动器 Vibrator
10/09/2007US7280933 Method and apparatus for forming a pattern, device and electronic apparatus
10/09/2007US7280668 Ceramic metal matrix diaphragm for loudspeakers
10/09/2007US7278200 Method of tensioning a diaphragm for an electro-dynamic loudspeaker
1 ... 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 ... 115