Communications, electrical: acoustic wave systems and devices inventions 01/07

20070019504 - Active steering for marine seismic sources: A seismic survey system having a source array (11) coupled to a deflector device (15) that controls the position of the source array. A positioning system unit (16) is mounted on the source array to provide a signal to a controller, informing the controller of the current position of the... Agent: Westerngeco L.L.C.

20070019505 - System and method for determining directional and non-directional fluid wave and current measurements: A system for determining the directional properties of surface waves or internal waves of a fluid medium includes a sonar system having a plurality of transducers for generating respective, separate acoustic beams and receiving echoes from one or more range cells located substantially within the beams; and a computer program... Agent: Procopio, Cory, Hargreaves & Savitch LLP

20070019506 - Ultrasonic imaging in wells or tubulars: An ultrasonic imaging method is provided. A wideband acoustic pulse is fired at a wall. A wideband response signal is received. The wideband response signal is processed to select an impedance measurement frequency. A wavelet having a characteristic frequency approximately equal to the impedance measurement frequency is fired. A wavelet... Agent: Conley Rose, P.C.

20070014189 - System and method for extending gps to divers and underwater vehicles: A navigation system extends satellite navigation to divers. The navigation system comprises a surface unit and a plurality of sub-surface beacon units. The surface unit includes a receiver to receive navigation signals from earth-orbiting satellites, processing circuits to communicate with to sub-surface beacon units and to transmit location information to... Agent: Coats & Bennett, PLLC

20070014190 - Multi-level pulser for an ultrasound system: A multi-level pulser for an ultrasound system is provided that receives a reference voltage input signal, a shading signal, and a control signal. The pulser produces an output signal for driving a transducer, with the output signal based on the reference voltage signal, the shading signal, and the control signal.... Agent: The Small Patent Law Group LLP

20070008818 - Fast coherent processing for codes with periodic line spectra: The present invention is directed to a method of allowing a computational load caused by the implementation of conventional signal processing methods operating by multicopy correlation, by simultaneous correlation of the spectrum of the received signal to copies of the signal, each of the copies having a different Doppler shift.... Agent: Lowe Hauptman Gilman & Berner, LLP

20070008819 - Prevention of reporting unwanted signals by the filtering of sensor data: A method for filtering an object by a vehicular sensor system, including emitting a first signal, detecting a first echo, the first echo including at least a portion of the first signal reflected by the object, filtering a first time value of the first echo, emitting a second signal, detecting... Agent: Osha Liang L.L.P.

20070008820 - Ultrasonic range finder: The present invention is intended to provide an ultrasonic range finder to measure a distance quickly and precisely under different environments. The ultrasonic range finder comprises a casing, an ultrasonic transmitting/receiving unit, a signal processing circuit connected electrically with the ultrasonic transmitting/receiving unit in the casing, a group of operation... Agent: Wallenstein & Wagner, Ltd.

20070008821 - Resolving directional information in sonar arrays: The invention concerns the resolution of directional information in sonar arrays. In particular it concerns a method for resolving such directional information, which may be useful in hydrographic surveys. The method comprises the steps of receiving a block of sensor data, containing time series from an array of hydrophone sensors,... Agent: Fish & Richardson, PC

20070002688 - Method of and apparatus for processing seismic data: A method determining a calibration filter to calibrate a first component of multi-component seismic data relative to a second component of the seismic data comprises determining the calibration filter from a portion of the seismic data that contains only events arising from critical refraction of seismic energy. The method is... Agent: Westerngeco L.L.C.

20070002689 - System and method of data source detection: A data source detection method and system for detecting data sources are provided. The data source detection system comprises a generic data source connector for connecting to a data source, a data source connectors repository for storing the location of the data source and a data source model for representing... Agent: Gowling Lafleur Henderson LLP