| Patents for H04R 17 - Piezo-electric transducers; Electrostrictive transducers (7,213) |
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| 05/23/2001 | EP1100628A2 Off-aperture electrical connection for ultrasonic transducer |
| 05/23/2001 | EP1100375A1 Ultrasonic transducer off-aperature connection |
| 05/17/2001 | DE10049492A1 Piezoelectric element for speaker in helmet, has curved flat piezoelectric film provided within speaker, with its radius of curvature lesser than specific value |
| 05/16/2001 | EP1098719A1 Method of manufacturing a capacitive ultrasound transducer |
| 05/16/2001 | CN1065965C Method for manufacturing electrodisplacive actuated mirror array |
| 05/15/2001 | US6231529 Electroacoustic transducer |
| 05/10/2001 | WO2001033902A2 Parametric loudspeaker with improved phase characteristics |
| 05/10/2001 | WO2001033648A1 Piezoelectric macro-fiber composite actuator and manufacturing method |
| 05/10/2001 | WO2001005189A3 Bending wave panel speaker and method of driving such a speaker |
| 05/10/2001 | US20010001123 Ultrasonic transducer with improved compressive loading |
| 05/10/2001 | CA2831366A1 Piezoelectric macro-fiber composite actuator and manufacturing method |
| 05/10/2001 | CA2389172A1 Parametric loudspeaker with improved phase characteristics |
| 05/10/2001 | CA2389146A1 Piezoelectric macro-fiber composite actuator and manufacturing method |
| 05/03/2001 | WO2001031686A2 Impact-reinforced piezocomposite transducer array |
| 05/03/2001 | DE10050366A1 System for imaging ultrasonic dispersers has display level system for displaying image with first and second scan lines that are functions of first and second path-summed received signals |
| 05/02/2001 | EP1096469A2 Ultrasonic vibration apparatus |
| 05/02/2001 | EP1095539A1 High power ultrasonic transducer |
| 05/02/2001 | CN2428937Y Throat-sound controlled piezoelectric microphone for mobile telephone |
| 05/01/2001 | US6226386 Microphone |
| 05/01/2001 | US6225729 Ultrasonic probe and ultrasonic diagnostic apparatus using the probe |
| 05/01/2001 | US6225728 Composite piezoelectric transducer arrays with improved acoustical and electrical impedance |
| 04/26/2001 | WO2001029964A1 Interface acoustic wave filter, especially for wireless connections |
| 04/26/2001 | WO2001028623A2 Split beam transducer |
| 04/26/2001 | DE19946467A1 Electroacoustic converter has piezo converter elements mounted at a distance apart and connected via sound transfer medium with opposed membrane surface normals |
| 04/24/2001 | CA2087762C Moment bender transducer |
| 04/19/2001 | DE10047942A1 Sensor array for ultrasonic diagnostic apparatus, has inner electrodes arranged between piezoelectric layers formed in parallel to main surface of substrate and external electrodes at end sides |
| 04/18/2001 | CN1292095A Method and apparatus for coherence imaging |
| 04/18/2001 | CN1291854A 压电扬声器 Piezoelectric speaker |
| 04/17/2001 | US6218768 Power ultrasonic transducer |
| 04/17/2001 | US6218766 Loudspeaker assembly |
| 04/17/2001 | US6217979 Piezoelectric/electrostrictive film element |
| 04/11/2001 | EP1090693A1 Ultrasonic enhancement of cleaning of a liquid delivery system |
| 04/10/2001 | US6215884 Piezo speaker for improved passenger cabin audio system |
| 04/10/2001 | US6215881 Ceiling tile loudspeaker |
| 04/04/2001 | EP1075098A9 Electronic converter of an acoustic signal to a pseudo-digital signal and bidirectional communication method by acoustic waves |
| 04/04/2001 | CN1064135C Thin film actuated mirror array |
| 04/03/2001 | CA2194266C Piezo speaker and installation method for laptop personal computer and other multimedia applications |
| 03/29/2001 | WO2001022776A1 Method of forming parylene-diaphragm piezoelectric acoustic transducers |
| 03/28/2001 | CN1289435A Contact Elecment for an ultrasound sensor |
| 03/28/2001 | CN1288765A Multielement self-focusing supersonic transducer |
| 03/27/2001 | CA2181598C Packaged strain actuator |
| 03/22/2001 | WO2001020948A2 Mems digital-to-acoustic transducer with error cancellation |
| 03/21/2001 | EP1084592A1 Resonant panel-form loudspeaker |
| 03/20/2001 | US6205226 Piezoelectric acoustic device |
| 03/14/2001 | CN1287766A Active acoustic devices comprising panel members |
| 03/13/2001 | US6201878 Portable compact disc player |
| 03/08/2001 | WO2001017039A1 Piezoelectric bending transducer |
| 03/08/2001 | WO2000072627A3 Transducer driver |
| 03/08/2001 | WO2000067525A3 Piezoelectric vibration exciter |
| 03/06/2001 | US6198965 Acoustic telemetry system and method for monitoring a rejection reaction of a transplanted organ |
| 03/06/2001 | US6198831 Panel-form loudspeakers |
| 03/06/2001 | US6198206 Inertial/audio unit and construction |
| 02/27/2001 | US6195440 Piezoelectric transducers |
| 02/21/2001 | EP1077014A1 Driver for a flat acoustic panel |
| 02/20/2001 | US6192136 Inertial vibration transducers |
| 02/15/2001 | WO2000060900A3 Hearing aid compatible piezoelectric speaker |
| 02/14/2001 | EP1075777A1 Transducer backing material and method of application |
| 02/14/2001 | EP1075776A1 Low voltage piezoelectric actuator |
| 02/14/2001 | EP1075688A1 Method of applying a matching layer to a transducer |
| 02/14/2001 | CN1283949A Piezoelectric electroacoustic transducer |
| 02/14/2001 | CN1283779A Supersonic flowmeter of supersonic sensor |
| 02/13/2001 | US6188775 Panel-form loudspeakers |
| 02/13/2001 | US6186952 Machined tilt transducer and methods of making |
| 02/08/2001 | WO2001010064A1 Sound communication system between a portable unit and a communication terminal |
| 02/08/2001 | WO2001009689A1 System for automatically setting a portable object with a clock function |
| 02/08/2001 | DE19935768A1 Piezoelektrischer akustischer Alarmgeber A piezoelectric acoustic alarm |
| 02/08/2001 | DE10033576A1 Piezoelectric electroacoustic transducer for loudspeakers, comprises connection clamp for connecting oscillating sections of two membranes |
| 02/07/2001 | EP1075098A1 Electronic converter of an acoustic signal to a pseudo-digital signal and bidirectional communication method by acoustic waves |
| 02/07/2001 | EP1074820A2 Ultrasonic transducer and ultrasonic flowmeter |
| 02/07/2001 | EP1074310A2 Wing type ultrasonic transducer |
| 02/06/2001 | US6183419 Multiplexed array transducers with improved far-field performance |
| 02/06/2001 | US6182352 Method of manufacturing an EAS marker |
| 02/01/2001 | WO2001008448A2 Piezoelectric acoustic alarm |
| 02/01/2001 | WO2001007172A1 Droplet spraying device and method of manufacturing the spraying device |
| 01/31/2001 | EP1072034A1 Contact element for an ultrasound sensor |
| 01/30/2001 | US6181799 Greetings or the like card |
| 01/30/2001 | US6181645 Ultrasound sensor for distance measurement |
| 01/25/2001 | WO2001005522A1 Impedance matching transducers |
| 01/18/2001 | WO2001005189A2 Bending wave panel speaker and method of driving such a speaker |
| 01/11/2001 | WO2001003108A2 Ultrasonic linear or curvilinear transducer and connection technique therefore |
| 01/11/2001 | WO2001002944A1 Acoustic touch sensor |
| 01/11/2001 | DE19928765A1 Ultrasonic transducer for multi-frequency, multi-layer test head can transmit different frequencies and receive frequency selectively over wide band with higher sensitivity than conventional arrangements |
| 01/11/2001 | DE10015183A1 Piezoelektrische Keramikzusammensetzung, dieselbe verwendender Summer und Aktuator The piezoelectric ceramic composition, the same used Direction buzzer and actuator |
| 01/04/2001 | WO2001001730A2 Microfabricated transducer and method for making the same |
| 01/04/2001 | DE19928491A1 Vorrichtung, insbesondere Therapievorrichtung, zum Beschallen von Objekten mit fokussiertem Schall Device, in particular therapy device for sonication of objects with a focused sound |
| 01/03/2001 | EP1065910A2 Speaker |
| 01/03/2001 | EP1064646A1 Inertial/audio unit and construction |
| 01/03/2001 | CN2413461Y Ceramic piezoelectric microphone |
| 12/27/2000 | EP1062933A2 Apparatus, in particular for therapy, for exposing objects to focused sound |
| 12/26/2000 | US6166998 Moulded transducer |
| 12/21/2000 | WO2000078090A2 Bending wave acoustic device |
| 12/21/2000 | WO2000076402A1 Improved volumetric ultrasound imaging with a thinned array |
| 12/21/2000 | CA2376301A1 Improved volumetric ultrasound imaging with a thinned array |
| 12/20/2000 | EP1061771A2 Speaker |
| 12/20/2000 | EP1061768A2 Transformer, loudspeaker device and loudspeaker system |
| 12/20/2000 | EP1060470A1 Method and apparatus for distributed, agile calculation of beamforming time delays and apodization values |
| 12/20/2000 | EP1060408A1 Method and apparatus for coherence imaging |
| 12/20/2000 | EP0710357B1 Dielectrically isolated resonant microsensor |
| 12/20/2000 | CN1277531A 压电扬声器 Piezoelectric speaker |
| 12/19/2000 | US6162178 Ultrasonic transducer off-aperture connection |