Communications, electrical: acoustic wave systems and devices inventions 04/06

20060087919 - Method for predicting pore pressure: A method for predicting pore pressure is described which initially involves obtaining, for one point in a volume of Earth, a value of pore pressure and one or more seismic attributes. A relationship is determined between the value of pore pressure and the seismic attribute, for example by use of...

20060083107 - Methods, systems, and computer readable media for interactively determining parameters for ocean-bottom hydrophone/geophone receiver combination deghosting: Methods, systems, and computer readable media are provided for interactively determining optimum deghosting parameter values for suppressing ghost reflections. Seismic data are obtained from various hydrophone/geophone receiver locations. Energy traces are generated which include measures of the deghosting parameter values from the seismic data obtained from each of the hydrophone/geophone...

20060083108 - Methods and systems for sonic log processing: Techniques for processing sonic waveform data include processing the data based on an initial set of formation-borehole parameters, to produce initial coherence peak attributes, wherein the processing is performed in a borehole; sending the initial coherence peak attributes uphole via telemetry; and correcting the initial coherence peak attributes, based on...

20060083109 - Seismic source controller and display system: A seismic survey system is described for performing offset borehole seismic survey measurement operations. According to a specific embodiment, the system may include a first seismic survey subsystem and a second seismic survey subsystem remotely located from the first seismic survey subsystem. The first seismic survey subsystem may include a...

20060083110 - Ambient bistatic echo ranging system and method: A system and associated method for ranging an underwater target of interest using ambient acoustic energy from an acoustic source. The system includes a hydrophone; a correlator for correlating first and second acoustic energy originating from the acoustic source to determine a delay associated with the second acoustic energy resulting...

20060083111 - Method and apparatus for detecting submarines: A method for detecting, tracking and locating submarines (24) utilizes pulsed coherent radiation from a laser (12) that is projected down through a water column, with particles in the water producing speckle from backscatter of the random particle distribution, with correlation of two closely time-spaced particle-based speckle patterns providing an...

20060077757 - Apparatus and method for seismic measurement-while-drilling: An apparatus and method for seismic measurement-while-drilling comprises at least one of a downhole seismic receiver or a downhole seismic source deployed in a telemetry drill string. Preferably both a downhole receiver and a downhole source are deployed in the drill string, the source and receiver being fixed at a...

20060077758 - Method and device for recognition of a tear-off strip on a material web: In order to check a material web (12), in particular a film web, with regard to the correct arrangement of a tear-off strip (11) extending in the longitudinal direction of the material web (12), ultrasonic transmitters are used, specifically an ultrasonic transmitter (11) on the one hand and an ultrasonic...

20060077759 - Ultrasonic locating system: The invention relates to a method and a system for monitoring and position determination of objects and/or living beings within an area, such as, e.g. a room in a building or a road tunnel. The system comprises a plurality of identification tags equipped with an ultrasonic receiver and radio transmitter...

20060077760 - Sonar transmitter: Provided is a sonar transmitter in which the structure is simplified and the power loss is decreased. A sonar transmitter comprises: a load unit having a transformer constituted with a primary wiring and a secondary wiring, and a wave transmitter to which the secondary voltage generated in the secondary wiring...

20060077761 - Laminated piezoelectric transducer and method of manufacturing the same: The invention is illustrated as an underwater acoustic transducer comprising an active acoustic element for transducing sound and electrical signals; a front and rear housing element disposed on each side of the active acoustic element to define a corresponding front and rear acoustic chamber on each side of the active...

20060077762 - Method and system using liquid dielectric for electrostatic power generation: A system and method for generating power. The system has a first electrode member comprising a first region and a second electrode member comprising a second region. Preferably, the second electrode member is coupled to the first electrode member. An electret is coupled between the first electrode member and the...

20060072372 - Composite acoustic attenuation materials: The present invention provides means of enhancing the acoustic attenuation and vibration damping of a material by (1) embedding a plurality of small particles of either a high characteristic acoustic impedance or a low characteristic acoustic impedance or combinations of high and low characteristic acoustic impedance materials to form a...

20060072373 - Amplitude preserving prestack migration method: A method is disclosed for amplitude preserving Kirchhoff time migration. The method includes calculating estimates of the geometrical spreading terms using a constant velocity approximation. Takeoff and emergence angles are accurately calculated based on a model of velocity which varies with respect to travel time. An image can be calculated...

20060072374 - Measurement while drilling bi-directional pulser operating in a near laminar annular flow channel: A device, method, and system for creating a pressure pulse from drilling fluid within a drill string in a down hole drill collar for enabling measurement-while drilling. The device and system are designed such that primarily laminar flow exists in the area surrounding the pulser apparatus. The method associated with...

20060072375 - Underwater sounding apparatus and method capable of calculating fish school information, volume of fish school and backscattering strength of single fish: An underwater sounding apparatus includes a transducer transmitting an acoustic sounding beam along a plurality of directional surfaces that intersect in three-dimensions and receiving echoes returning from within a fish school using receiving beams. The transducer can form the receiving beams in directions generally along a substantially vertical planar directional...