Patents
Sitemap › H04 - Electric communication technique › H04R - Loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers; Deaf-aid sets; Public address systems › H04R 17 - Piezo-electric transducers; Electrostrictive transducers
Patents for H04R 17 - Piezo-electric transducers; Electrostrictive transducers (7,213)
01/2006
01/04/2006CN1234468C Unidirectional acoustic probe and method for making same
01/03/2006US6981300 plurality of small trenches in photoresist layer to fill the large opening of a silicon wafer; vibrating layer; bend and push modes
12/2005
12/29/2005WO2005125274A1 Acoustic wave amplifier
12/29/2005US20050286346 High intensity directional electroacoustic sound generating system for communications targeting
12/28/2005EP1610587A1 Ultrasonic sensor
12/28/2005EP1609334A1 Ultrasonic energy system and method including a ceramic horn
12/28/2005CN1713781A Ultrasonic speaker and projector
12/27/2005US6979703 Acoustically matching layer and composition thereof
12/22/2005WO2005122633A1 Ultrasonic transducer and ultrasonic speaker using the same
12/22/2005WO2005120373A1 Ultrasonic curing device
12/22/2005US20050281420 Ultrasonic speaker and projector
12/22/2005US20050279566 Loudspeaker
12/21/2005EP1060470B1 Method and apparatus for distributed, agile calculation of beamforming time delays and apodization values
12/21/2005CN1710994A Piezoelectric loud speaker
12/21/2005CN1233197C Electroacoustic transducer
12/20/2005US6978032 Piezoelectric speaker
12/20/2005US6977381 Gating grid and method of making same
12/20/2005US6976295 Method of manufacturing a piezoelectric device
12/15/2005DE10306854B4 Verfahren zum Erzeugen von Übertragungssignalwellenformen mit mehreren Pegeln und Ultraschall-Sender zum Erzeugen von solchen A method of generating transmission signal waveforms having a plurality of levels and ultrasound transmitter for generating such
12/14/2005EP1242991B1 Ultrasonic diagnostic imaging system transducer array with multiline patches
12/14/2005EP1241994A4 Ultrasound transducers for imaging and therapy
12/14/2005CN1707608A Sound amplifier
12/13/2005US6975736 Microphone
12/08/2005US20050273008 Method of generating a predetermined wave field
12/08/2005US20050269906 Electro-active actuator
12/07/2005EP1603114A2 Packaged piezoelectric exciter module
12/06/2005US6972510 Array of ultrasound transducers
12/01/2005WO2005115054A1 Supersonic transducer and manufacturing method thereof
12/01/2005WO2005072084A3 Medical treatment monitoring using pulse-echo ultrasound
12/01/2005US20050262676 Tactile sensor and method of manufacturing the same
11/2005
11/30/2005EP1600036A1 Generating device for generating a useful stream of a medium, in particular for generating sound
11/30/2005EP1156891B1 Low profile acoustic sensor array and sensors with pleated transmission lines and related methods
11/30/2005CN2744112Y Lighting piezoelectric ceramic loudspeaker
11/30/2005CN1703929A Ultrasonic sensor
11/29/2005US6969942 Piezoelectric electroacoustic transducer
11/24/2005WO2005110734A1 Method of laminating articles
11/24/2005WO2005058138A3 Method for mapping temperature rise using pulse-echo ultrasound
11/24/2005WO2004095758A3 Signal classification methods for scanning receiver and other applications
11/24/2005US20050261590 Ultrasonic probe and ultrasonic diagnostic apparatus
11/23/2005CN1228700C Electronic article comprising loudspeaker and touch pad
11/22/2005US6967362 Flexible MEMS transducer and manufacturing method thereof, and flexible MEMS wireless microphone
11/22/2005US6966110 Light emission device havingnozzle aperture; electrodes; rigid dielectric; pressurized liquid; ejection drops
11/17/2005US20050254344 Data transmission system and method using sound waves
11/17/2005US20050253487 Piezolelectric devices
11/16/2005EP1356451B1 Annular array
11/16/2005CN1698216A Cylindrical ultrasound transceivers
11/15/2005US6965680 Piezoelectric electro-acoustic transducer
11/15/2005US6965678 Electronic article comprising loudspeaker and touch pad
11/10/2005WO2005048645A3 Method and apparatus for tooth bone conduction microphone
11/10/2005WO2004064116A3 Polymer film composite transducer
11/10/2005US20050251047 Low profile acoustic sensor array and sensors with pleated transmission lines and related methods
11/10/2005DE102005017536A1 Ultraschallsensor Ultrasonic sensor
11/08/2005US6961981 electrically connecting electrodes formed on a resonator piece; short circuit prevention; layering the resonator piece with two electrodes, a dielectric, noble metal and metal under layers; etching a resistive mask; surface coating
11/03/2005WO2005104615A1 Ultrasonic sensor
11/03/2005WO2005104614A1 Loudspeaker
11/03/2005WO2005104603A1 Microphone assembly with preamplifier and manufacturing method thereof
11/03/2005US20050245884 Method of laminating articles
11/03/2005US20050243650 Multiple level transmitter and method of transmitting
11/03/2005US20050242689 Ultrasonic probe and manufacturing process thereof
11/03/2005US20050241127 Method for manufacturing a cell driving type actuator
11/03/2005DE102005014790A1 Elektrische Z-Achsen Verbindung und Verfahren zur elektrischen Verbindung für Ultraschalltransducer Electrical connection and Z axes method for the electrical connection for ultrasonic transducers
11/03/2005DE102004016196A1 Electromechanical system`s undesired oscillation modes reducing/eliminating method, involves temporarily exciting system, and analyzing about analysis of sector spectral frequency over Fourier transformation by analyzing/feed back operation
11/02/2005EP1506691B1 Loudspeaker
11/02/2005EP1075776A4 Low voltage piezoelectric actuator
11/02/2005CN1692677A Piezoelectric speaker, speaker system employing it, and electronic apparatus employing piezoelectric speaker
11/02/2005CN1691838A Anti-noise stable-conducting microphone
11/02/2005CN1691341A Thin film circuit substrate, piezoelectric speaker device, display device, and sound-generating display device
11/01/2005US6960870 Piezo-electric resonator and manufacturing method thereof
11/01/2005US6960868 Piezoelectric electro-acoustic transducer and manufacturing method of the same
11/01/2005US6959484 System for vibration control
10/2005
10/27/2005US20050237858 Reconfigurable linear sensor arrays for reduced channel count
10/27/2005US20050237685 Thin film circuit substrate, piezoelectric speaker device, display device, and sound-generating display device
10/27/2005US20050236938 Ultrasonic sensor
10/27/2005US20050236932 Ultrasonic transmitter/receiver, process for producing the same, and ultrasonic flowmeter
10/26/2005EP1360685B1 Ultrasound transducer and method of manufacturing an ultrasound transducer
10/25/2005CA2381149C Sound communication system between a portable unit and a communication terminal
10/20/2005WO2005099306A2 Low acceleration sensitivity microphone
10/20/2005WO2004066669A3 Anisotropic acoustic impedance matching material
10/20/2005US20050232434 Transducer for bioacoustic signals
10/20/2005US20050231068 Transmitting apparatus, sound sensor and autonomous traveling vehicle
10/19/2005EP1051700B1 Multielement ultrasonic contact transducer
10/19/2005EP0872158B1 Piezoelectric transducers
10/19/2005CN2735699Y Piezoelectric sheet hi-end
10/19/2005CN1684545A Loud speaker system
10/19/2005CN1682663A 超声波探头和超声波诊断装置 An ultrasonic probe and ultrasonic diagnostic apparatus
10/13/2005US20050225212 Biometric sensing device with isolated piezo ceramic elements
10/13/2005US20050225210 Z-axis electrical connection and methods for ultrasound transducers
10/13/2005DE102005001673A1 Medical ultrasound transducer for e.g. hospital, has electronics assembly, with thermal conductor linked with electrical component, operable to remove heat generated by component and move heat from interior to exterior portion
10/12/2005EP1585364A1 System for generating an ultrasonic beam
10/11/2005US6954024 Unidirectional acoustic probe and method for making same
10/11/2005US6952967 Ultrasonic transducer
10/06/2005WO2005094121A1 Piezoelectric acoustic element, acoustic device and portable terminal device
10/06/2005US20050220311 Method and apparatus to generate an audio beam with high quality
10/06/2005US20050219952 Piezoelectric tranducer systems
10/05/2005CN1679372A Transducer for bioacoustic signals
10/05/2005CN1678945A Liquid crystal display device having sound output function and the like and electronic device using the same
10/05/2005CN1678133A Transmitting apparatus, sound sensor and autonomous traveling vehicle
10/05/2005CN1677706A Method and means for isolating elements of a sensor array
10/04/2005US6951135 Ultrasonic probe and method for the fabrication thereof
09/2005
09/29/2005US20050215907 Ultrasonic transducer for electronic devices
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