Patents for H04R 15 - Magnetostrictive transducers (423)
06/2007
06/13/2007CN1980491A Speaker and method of outputting acoustic sound
06/05/2007US7225686 Torque sensing apparatus
05/2007
05/24/2007US20070114855 Actuator
05/10/2007WO2007052835A1 Speaker, image element protective screen, case of terminal, and terminal
05/09/2007CN1960577A Portable audio drive unit
04/2007
04/18/2007EP1774310A2 Flexible electromagnetic acoustic transducer sensor
04/12/2007WO2007015853A3 Audio signal system
04/11/2007EP1773097A2 Acoustic actuators
04/11/2007EP1773096A2 Portable audio drive unit
04/04/2007CN2886965Y Magnetic circuit structure of loudspeaker
03/2007
03/07/2007CN1926916A Driver for an ultrasonic transducer and an ultrasonic transducer
03/01/2007WO2006094251A3 Magnetostrictive fega alloys
02/2007
02/08/2007WO2007015853A2 Audio signal system
02/08/2007CA2616335A1 Audio signal system
01/2007
01/23/2007US7165453 Flexible electromagnetic acoustic transducer sensor
01/10/2007CN1893737A Driving device and method
01/04/2007WO2006055354A3 Adaptive time-based noise suppression
12/2006
12/27/2006EP1576851B1 Acoustic actuator
12/06/2006CN1874614A Electromechanical transformation device
11/2006
11/09/2006WO2006119179A2 Acoustic and magnetostrictive actuation
11/09/2006WO2006118205A1 Giant-magnetostrictive speaker
09/2006
09/20/2006CN2819692Y Convex rib U-shaped iron of loundspeaker
09/19/2006US7110564 Multi-function actuator
09/14/2006US20060204029 Speaker unit and sound output device
08/2006
08/16/2006CN1819718A Magnetostrictive actuator
08/10/2006WO2006014714A3 Flexible electromagnetic acoustic transducer sensor
06/2006
06/01/2006US20060113932 Vibrator unit and portable telephone employing it
05/2006
05/09/2006US7043313 Clock system capable of synchronizing clock frequencies of power processing devices and digital signal processing devices
05/03/2006EP1653771A1 Detection apparatus and method of physical variable
05/03/2006EP1245133A4 Active housing broadband tonpilz transducer
03/2006
03/09/2006US20060050904 Acoustic actuators
03/08/2006EP1632107A1 Improved telephone handset
02/2006
02/01/2006CN1729715A Acoustic actuators
02/01/2006CN1728412A Magnetostrictive device and its usage method, actuator, sensor
01/2006
01/18/2006CN1723738A Vibrator unit and portable telephone employing it
11/2005
11/23/2005CN1701632A Speaker unit and voice output device
11/16/2005CN1698094A Apparatus for focusing ultrasonic acoustical energy within a liquid stream
09/2005
09/28/2005CN1674719A 扬声器 Speaker
09/28/2005CN1673700A Torque sensor
09/22/2005US20050207600 Speaker
09/22/2005US20050204831 Torque sensor
09/21/2005EP1576851A2 Acoustic actuators
09/15/2005US20050201584 Helmet with a magnetostrictive actuator
08/2005
08/25/2005WO2005079111A1 Magnetostriction underwater transmitter/receiver
07/2005
07/21/2005WO2005067345A1 Driver for an ultrasonic transducer and an ultrasonic transducer
07/20/2005EP0991913B1 Element comprising a layer structure and a current-directing means
07/07/2005WO2005062665A1 Magnetostrictive acoustic apparatus
07/07/2005WO2005062397A1 Actuator
07/07/2005US20050146231 Driver for an ultrasonic transducer and an ultrasonic transducer
05/2005
05/10/2005US6891286 Magnetostrictive actuator
03/2005
03/03/2005DE10156816B4 Mehrfachfunktions-Signalgeber Multi-function signal generator
02/2005
02/24/2005WO2004105176A3 Underwater antenna with electroacoustic transducers embedded in a casting compound
02/10/2005US20050029878 Magnetostrictive actuator
12/2004
12/02/2004WO2004105176A2 Underwater antenna with electroacoustic transducers embedded in a casting compound
12/02/2004CA2524018A1 High-power ultrasound generator and use in chemical reactions
11/2004
11/02/2004CA2238774C Vibration wave detector
10/2004
10/28/2004WO2004057912A3 Acoustic actuators
09/2004
09/30/2004WO2004084578A1 Vibrator unit and portable telephone employing it
09/22/2004CN2643591Y 水下扬声器 Underwater speakers
08/2004
08/25/2004EP1449200A1 Apparatus for focussing ultrasonic acoustical energy within a liquid stream
08/17/2004US6776352 Apparatus for controllably focusing ultrasonic acoustical energy within a liquid stream
08/12/2004WO2004068900A1 Speaker unit and voice output device
07/2004
07/15/2004DE10323493B3 Underwater antenna for acoustic monitoring of sea region e.g. for ship, using electroacoustic transducers embedded in acoustically transparent material
07/08/2004WO2004057912A2 Acoustic actuators
07/08/2004WO2004057911A1 Method and device for converting energy between membranes
07/07/2004EP1435190A2 Magnetostrictive actuator
06/2004
06/08/2004US6747852 Magnetoresistance sensors with Pt-Mn transverse and longitudinal pinning layers and a decoupling insulation layer
04/2004
04/29/2004US20040079160 Pressure transducer
04/22/2004WO1990005910A3 Wholly microfabricated biosensors and process for the manufacture and use thereof
03/2004
03/18/2004WO2004023638A1 Supermagnetostrictive device and applied apparatus comprising it
03/17/2004CN1142036C Ultra-magnetostrictive soic wave transmitting energy converter
02/2004
02/19/2004WO2003005764A3 Portable acoustic device
02/10/2004US6690805 Audio signal noise reduction system
02/10/2004US6690621 Active housing broadband tonpilz transducer
12/2003
12/25/2003US20030235115 Active housing broadband tonpilz transducer
12/18/2003WO2002076141A3 Magnetostrictive actuator
11/2003
11/26/2003CN1458807A Magnetostriction high-fidelity planar speaker
10/2003
10/22/2003CN2582313Y Structure improvement for speaker voice box
10/01/2003EP1250827B1 Transducer
08/2003
08/05/2003US6603241 Acoustic mirror materials for acoustic devices
06/2003
06/26/2003WO2003052736A1 Apparatus for focussing ultrasonic acoustical energy within a liquid stream
05/2003
05/29/2003US20030098364 Apparatus for controllably focusing ultrasonic acoustical energy within a liquid stream
04/2003
04/16/2003EP1301766A1 Pressure transducer
04/09/2003CN2544489Y Magnetostriction high-fidelity plane loudspeaker
03/2003
03/13/2003US20030046807 Method for forming a MR reader with reduced shield topography and low parasitic resistance
03/06/2003US20030044031 Multi-function actuator
02/2003
02/20/2003US20030035253 Magnetoresistance sensors with Pt-Mn transverse and longitudinal pinning layers, and their fabrication method
01/2003
01/29/2003CN1394457A Transducer
01/16/2003WO2003005764A2 Portable acoustic device
11/2002
11/19/2002CA2190726C A surface element and a device for generating sound
10/2002
10/23/2002EP1250827A2 Transducer
10/17/2002WO2001072084A3 Dual mode audio device
10/02/2002EP1245133A1 Active housing broadband tonpilz transducer
10/02/2002CN1372431A Electroacoustic telephone transmitter
09/2002
09/26/2002WO2002076141A2 Magnetostrictive actuator
09/10/2002US6449131 Canted longitudinal patterned exchange biased dual-stripe magnetoresistive (DSMR) sensor element and method for fabrication thereof
08/2002
08/22/2002US20020114476 Electroacoustic capsule
08/21/2002EP1233647A2 Electroacoustic capsule
08/21/2002EP0768013B1 A surface element and a device for generating sound
08/20/2002US6438243 Vibration wave detector
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