Communications, electrical: acoustic wave systems and devices inventions 04/08

20080094940 - System and method for measuring wave directional spectrum and wave height: A system and method for measuring the directional spectrum of one or more waves in a fluid medium using a multi-beam sonar system. In an exemplary embodiment, range cells located within a plurality of acoustic beams are sampled to provide current velocity data. Optionally, wave surface height and pressure data... Agent: Knobbe Martens Olson & Bear LLP

20080089174 - Method for attenuating particle motion sensor noise in dual sensor towed marine seismic streamers: Signals detected by particle motion sensors in a towed dual sensor marine seismic streamer are scaled to match signals detected by pressure sensors in the streamer. The pressure sensor signals and the scaled particle motion sensor signals are combined to generate up-going and down-going pressure wavefield components. The up-going and... Agent: E. Eugene Thigpen Petroleum Geo-services, Inc.

20080089175 - Well downhole condition signalling: A downhole tool 10 includes means for detecting a downhole condition, a capacitor bank, and a sparker. The technique is particularly useful for detecting casing collars. As the tool is passed along the well bore 11, it detects collars 12. On each detection, a part of the capacitor bank is... Agent: Fay Sharpe LLP

20080089176 - Method and apparatus for controlling the motion of an autonomous moored profiler: A method and apparatus for controlling the motion of a cable-driven autonomous moored profiler. The profiler includes one or more buoyant members for buoying the profiler in the fluid, a winch, and a feedback controller for controlling the winch. The winch includes a spool, a device providing for varying rates... Agent: Garth Janke Portland Intellectural Property, LLC

20080089177 - Obstacle detecting device: An obstacle detecting device includes a wall member and an ultrasonic sensor. The wall member has a base member having an inner surface, and the base member extends in parallel with an imaginary plane. The ultrasonic sensor is attached to the inner surface of the base member for transmitting and... Agent: Nixon & Vanderhye, PC

20080089178 - Ultrasonic sensor comprising an adjustable detection area: The invention relates to an ultrasonic sensor with an adjustable detection range for use in gaseous media, preferably air. A threshold value generator generates threshold value curves that are fed to a comparator. The change in the detection range of the ultrasonic sensor, namely, the change in its switching point... Agent: Collard & Roe, P.C.

20080089179 - Ultrasonic transducer, manufacturing method of ultrasonic transducer, and ultrasonic endoscope: An ultrasonic transducer according to the present invention includes: two or more ultrasonic transducer cells, each of which has a lower electrode, a first insulating layer placed on the lower electrode, a cavity placed on the first insulating layer, a second insulating layer placed on the cavity, and an upper... Agent: Scully Scott Murphy & Presser, PC

20080089180 - Ultrasonic transducer, ultrasonic probe, and ultrasonic diagnostic apparatus:

20080089181 - Ultrasonic transducer cell: An ultrasonic transducer cell according to the present invention includes: a substrate; a charge holding portion provided on the substrate; a lower electrode provided on the charge holding portion and used to input and output a signal; and a vibration membrane provided above the lower electrode to be separated from... Agent: Scully Scott Murphy & Presser, PC

20080084787 - Robotic sentry with low dispersion acoustic projector: A system of remotely locatable sentries or watchtowers operate as part of a network of such sentries or towers for securing a border or perimeter over a wide area. A sensor array, including particularly an array of video cameras, provides for detection, tracking and identification of a target. The sentry... Agent: O'malley And Firestone

20080084788 - Acoustic location of gunshots using combined angle of arrival and time of arrival measurements: A gunshot location system computes candidate gunshot locations [314] from angle-of-arrival information [304, 308] and time-of-arrival information [312] provided by acoustic sensors [300, 302]. In addition to an angle, each sensor calculates an angular uncertainty [306, 310] from impulses received at four or more microphones having rotational symmetry. An intersection... Agent: Lumen Patent Firm, Inc.

20080084789 - Acoustic robust synchronization signaling for acoustic positioning system: A position detection system comprising positional element and positioning device, wherein the positional element transmits a continuously modulated acoustic waveform and a synchronization signal that is a sequence of at least two synchronization packets, each bearing timing data for the continuously modulated acoustic waveform. Additionally, the synchronization signal uses time... Agent: Martin D. Moynihan Prtsi

20080080307 - Apparatus and methods for transmitting unsolicited messages during seismic data acquisition: An apparatus and method for seismic data acquisition is provided, which, in one aspect, define a plurality of attributes relating to acquisition of seismic data by the apparatus, determine a value of each attribute when the apparatus is deployed for acquiring seismic data, generate a message for each attribute whose... Agent: Paul S Madan Madan, Mossman & Sriram, PC

20080080308 - System and method for seismic data acquisition: There is provided herein a system and method for the imaging and monitoring of hydrocarbon reservoirs and other subsurface features preferably using seabed or surface sensors in conjunction with one or more downhole sensors. In one preferred embodiment, recordings will be simultaneously made using both seabed and downhole receivers. The... Agent: Fellers Snider Blankenship Bailey & Tippens

20080080309 - Three-dimensional seismic survey methods using a perturbation pattern to provide bin fractionation: A receiver point arrangement is deployed having one or more receiver lines, each receiver line having receivers with substantially uniform inline spacing. A seismic source is triggered at each source point in an arrangement of source points along one or more source lines, each source line having source points with... Agent: E. Eugene Thigpen Petroleum Geo-services, Inc.

20080080311 - Seismic data acquisition systems and method utilizing a wireline repeater unit: A system and methods for acquiring seismic data is provided. In one aspect, the system and methods utilize a plurality of field service units placed over a region of interest, a repeater unit that wirelessly communicates with the field service units and a remote unit for controlling and processing the... Agent: Paul S Madan Madan, Mossman & Sriram, PC

20080080310 - Seismic data acquisition systems and methods for managing messages generated by field units: A system and method for acquiring seismic data is provided that utilizes a plurality of field station (data acquisition) units placed over a region of interest and a remote central unit. The system and method, in one aspect, determine a condition associated with each of a plurality of preselected attributes... Agent: Paul S Madan Madan, Mossman & Sriram, PC

20080080312 - Seismic data acquisition using time-division multiplexing: A method of transmitting data between a remote unit and a plurality of field service units placed over a region of interest, each field service unit acquiring seismic data from at least one seismic receiver in a plurality of seismic receivers placed in the region of interest is provided that,... Agent: Paul S Madan Madan, Mossman & Sriram, PC

20080080314 - System and method for accoustic doppler velocity processing with a phased array transducer including applying correction factors to velocities orthogonal to the transducer face: A system and method for measuring velocity in a fluid medium utilizing a phased array transducer are disclosed. The phased array transducer comprises a plurality of transducer elements arranged to form a single two-dimensional array. In one aspect, the method comprises receiving echoes of a plurality of beams generated by... Agent: Knobbe Martens Olson & Bear LLP

20080080313 - System and method for accoustic doppler velocity processing with a phased array transducer including using differently coded transmit pulses in each beam so that the cross-coupled side lobe error is removed: A system and method for measuring velocity in a fluid medium utilizing a transducer are disclosed. In one aspect, the method comprises transmitting an acoustic signal comprising N (where N is integer and N>1) pings for each of a plurality of beams, receiving echoes from each ping, obtaining a velocity... Agent: Knobbe Martens Olson & Bear LLP

20080080315 - System and method for accoustice doppler velocity processing with a phased array transducer including using a wide bandwidth pulse transmission to resolve ambiguity in a narrow bandwidth velocity estimate: A system and method for measuring velocity in a fluid medium utilizing a measuring system are disclosed, wherein the measuring system comprises a transducer. In one aspect, the method comprises transmitting a first set of one or more signals of a bandwidth substantially broader than the bandwidth of the measuring... Agent: Knobbe Martens Olson & Bear LLP

20080080316 - Fish finder: A fish finder includes a transducer that repeatedly transmits ultrasonic pulse signals downward into the water and receives signals from the water, a first signal generating unit that generates a first signal on the basis of a reception signal at an identical depth caused by signals transmitted at least twice,... Agent: Birch Stewart Kolasch & Birch

20080080317 - Fishfinder: A fishfinder is provided for identifying with high precision a single fish under the ship and for measuring the length of the fish precisely. An operator of the fishfinder is assisted to grasp the depth and the length of the fish. A fishfinder transmits an ultrasound pulse having a high... Agent: Edwards Angell Palmer & Dodge LLP

20080080318 - Autonomous ocean bottom seismic node recording device: The present invention relates to an improved autonomous node seismic recording device having an integrated modular design and one or more features that assist coupling of the unit to the sea floor in order to improve the vector fidelity of seismic signal measurement.... Agent: Fulbright & Jaworski, LLP