| Patents for G01H 3 - Measuring vibrations by using a detector in a fluid (2,243) | 
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| 12/19/1996 | WO1996041214A1 Apparatus and method for speech recognition using spatial information | 
| 12/18/1996 | EP0748494A1 Siren detector | 
| 12/17/1996 | US5585551 Method for identification of different states of water, and sensor arrangement for use in the method | 
| 12/17/1996 | US5585546 Apparatus and methods for controlling sensitivity of transducers | 
| 11/27/1996 | EP0535103B1 Method for monitoring the effectiveness of pressure waves from a pressure wave generator | 
| 11/13/1996 | EP0741873A1 A passive sensor system using ultrasonic energy | 
| 11/12/1996 | US5574212 Automated system and method for testing resolution of ultrasound scanners | 
| 10/30/1996 | EP0627087A4 Hydrophone arrangement. | 
| 10/30/1996 | EP0613556B1 Ultrasonic holography imaging method and apparatus | 
| 10/22/1996 | US5568448 System for transmitting a signal | 
| 10/22/1996 | CA2012951C Ultrasound generator assembly and ultrasonic acoustic microscope | 
| 10/10/1996 | WO1996031753A2 Three-dimensional digital ultrasound tracking system | 
| 10/10/1996 | CA2215508A1 Three-dimensional digital ultrasound tracking system | 
| 10/02/1996 | DE19518409C1 Acoustic fault identification for determining e.g. bearing damage from radially measured air sound signal | 
| 09/26/1996 | WO1996029581A1 Vibration dosimeter worn by an operator | 
| 09/24/1996 | US5557969 Apparatus and method for detection ultrasonic waves propagated from within a selected distance | 
| 08/22/1996 | WO1996025649A1 Process and device for determining the tonality of an audio signal | 
| 08/15/1996 | WO1996024825A1 Acoustic pressure gradient sensor | 
| 08/08/1996 | DE4143540C2 Therapeutic assembly for treatment by acoustic irradiation | 
| 07/31/1996 | EP0723651A1 Method and device for measuring ultrasonic activity in an ultrasound delivery system | 
| 07/09/1996 | US5535131 System for analyzing sound quality in automobile using musical intervals | 
| 07/04/1996 | DE19510144C1 Test phantom for ultrasonic transducer useful for treating pathological tissue changes | 
| 07/02/1996 | US5531124 Ultrasonic flow measuring method and apparatus thereof | 
| 06/26/1996 | EP0718608A1 Method for analysing regularly excited mechanical vibrations | 
| 06/25/1996 | US5530678 Real-time calibration acoustic array | 
| 05/29/1996 | EP0714088A1 Voice activity detection | 
| 05/28/1996 | US5521885 Hydrophone arrangement | 
| 05/28/1996 | US5521594 For detecting a dry-wet condition of a road surface | 
| 05/23/1996 | CA2163295A1 Vocal activity detection | 
| 05/21/1996 | US5519637 Wavenumber-adaptive control of sound radiation from structures using a `virtual` microphone array method | 
| 05/15/1996 | EP0711406A1 Acoustic microscope | 
| 05/14/1996 | US5515853 Three-dimensional digital ultrasound tracking system | 
| 05/07/1996 | US5515300 Coherent signal power detector using higher-order statistics | 
| 05/02/1996 | DE19531360A1 Transducer sensitivity control device for ultrasonic imaging system | 
| 03/13/1996 | EP0472578B1 Apparatus and methods for the generation of stabilised images from waveforms | 
| 03/05/1996 | CA2131522A1 Low frequency air mass perturbation detector using a sealed volume flexible tube as the containment medium | 
| 02/06/1996 | US5488853 Measurement arrangement for calibrating ultrasonic shock wave sensors | 
| 01/11/1996 | DE4423383A1 Sound dose indicator with warning alarm for use at e.g. discotheque, or work-place with high ambient noise level, or headphone user | 
| 01/09/1996 | US5483617 Elimination of feature distortions caused by analysis of waveforms | 
| 01/03/1996 | EP0689667A1 Sound evaluation process | 
| 12/28/1995 | WO1995025264A1 Apparatus and method for detecting ultrasonic waves propagated from within a selected distance | 
| 12/19/1995 | US5477506 In-flow acoustic sensor | 
| 12/14/1995 | WO1995034062A1 Method of analysis of signals from non-stationary processes possessing temporal structure such as music, speech, and other event sequences | 
| 12/07/1995 | DE19505435C1 Tonality evaluation system for audio signal | 
| 11/14/1995 | US5465720 Automated qualitative image quality for ultrasound images | 
| 11/14/1995 | US5465625 Heat measurement apparatus for inspecting therapeutic energy waves | 
| 11/14/1995 | US5465469 Method for measuring sound absorption power of a theater chair with a dummy representing a human being seated thereon | 
| 11/07/1995 | US5465302 Method for the location of a speaker and the acquisition of a voice message, and related system | 
| 11/02/1995 | WO1995029478A1 Process and device for tracing an ultrasound field | 
| 11/02/1995 | WO1995029413A1 Vehicle classification system using a passive audio input to a neural network | 
| 11/02/1995 | CA2188539A1 Process and device for tracing an ultrasound field | 
| 11/02/1995 | CA2187885A1 Vehicle classification system using a passive audio input to a neural network | 
| 10/19/1995 | WO1995027910A1 Airport noise monitoring system | 
| 10/10/1995 | US5457750 Method and device for reducing noises generated at an indoor unit of a separate type room air conditioner package | 
| 09/27/1995 | EP0674181A2 Micro mechanical component and production process thereof | 
| 09/25/1995 | CA2145331A1 Micro mechanical component and production process thereof | 
| 09/13/1995 | EP0671610A2 Method and apparatus for diagnosing sound source and vibration source | 
| 09/13/1995 | EP0671113A1 Microphone mounting device | 
| 09/12/1995 | US5448904 Acoustic calibration apparatus for calibrating plethysmographic acoustic pressure sensors | 
| 09/08/1995 | WO1995024028A1 Siren detector | 
| 09/06/1995 | CN2206949Y Multifunction sound wave parameter surveying instrument | 
| 08/29/1995 | US5445026 Electronic instrument for locating and diagnosing engine sounds | 
| 08/15/1995 | US5440914 Method of measuring distribution and intensity of ultrasonic waves | 
| 08/03/1995 | WO1995020769A1 A passive sensor system using ultrasonic energy | 
| 08/03/1995 | CA2182193A1 A passive sensor system using ultrasonic energy | 
| 07/25/1995 | US5436556 Signal detector and method for detecting signals having selected frequency characteristics | 
| 07/18/1995 | US5433102 Ultrasonic wave energy detection and identification | 
| 07/11/1995 | US5432755 Ultrasonic signal detector | 
| 07/05/1995 | EP0473664B1 Analysis of waveforms | 
| 06/22/1995 | WO1995016899A1 Sound evaluation process | 
| 06/14/1995 | EP0657349A1 Method for identification of different states of water, and sensor arrangement for use in the method | 
| 06/13/1995 | US5424486 Musical key determining device | 
| 06/10/1995 | CA2137601A1 Method for identification of different states of water, and sensor arrangement for use in the method | 
| 06/08/1995 | DE4443000A1 Akustisches Verfahren und akustische Vorrichtung zum Messen von Spulen-Abwickelgeschwindigkeiten Acoustic method and apparatus for measuring acoustic coil Abwickelgeschwindigkeiten | 
| 06/06/1995 | US5422977 Apparatus and methods for the generation of stabilised images from waveforms | 
| 06/01/1995 | WO1995010758A3 Method and device for measuring ultrasonic activity in an ultrasound delivery system | 
| 05/24/1995 | EP0654676A1 Method for determining the fundamental frequencies of the frequency spectrum of an acoustic locating device | 
| 04/20/1995 | WO1995010758A2 Method and device for measuring ultrasonic activity in an ultrasound delivery system | 
| 03/23/1995 | DE4331423A1 Circuit arrangement for recording oto-acoustic tone differences for the purpose of audiometric screening | 
| 03/22/1995 | CN1027990C Submersible mark type measuring system for underwater noise | 
| 03/21/1995 | US5400261 Method and apparatus for wave analysis and event recognition | 
| 03/16/1995 | DE4432608A1 Arrangement and method of detecting tool fractures in machine tools | 
| 03/09/1995 | DE4330148A1 Method for three-dimensional ultrasonic transillumination | 
| 03/02/1995 | DE4430223A1 Ultrasonic flow measuring method and device for carrying out the method | 
| 02/21/1995 | US5392381 Acoustic analysis device and a frequency conversion device used therefor | 
| 02/21/1995 | US5392258 Underwater acoustic intensity probe | 
| 02/21/1995 | US5390678 Method and device for measuring ultrasonic activity in an ultrasound delivery system | 
| 02/14/1995 | US5390248 Apparatus for determining tonal characteristics of an object and method thereof | 
| 02/07/1995 | US5387833 Method and device for separating acoustic wave-generated energy from directly coupled electromagnetic interference | 
| 02/02/1995 | WO1995003531A1 Acoustic microscope | 
| 01/10/1995 | US5381383 Sonar transducer calibration apparatus and method | 
| 12/22/1994 | DE4320039A1 Method and device for determining the presence and/or for measuring the properties (characteristics) of solid or liquid materials in a space | 
| 12/07/1994 | EP0627087A1 Hydrophone arrangement | 
| 11/22/1994 | US5367496 Apparatus for producing images acoustically | 
| 11/08/1994 | CA1332983C Method for improving tread noise by relative rotation of a rib, and simulating the effect thereof | 
| 10/27/1994 | DE4410032A1 Method and device for detecting ultrasonic wave energy | 
| 10/25/1994 | US5357805 Pressure measurement apparatus for inspecting therapeutic energy waves | 
| 10/18/1994 | US5357063 Method and apparatus for acoustic energy identification of objects buried in soil | 
| 10/11/1994 | US5355350 Passive acoustic tornado detector and detection method | 
| 10/05/1994 | EP0618446A1 Method and device for separating acoustic wave-generated energy from directly coupled electromagnetic interference |