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Communications, electrical: acoustic wave systems and devices January recently filed with US Patent Office 01/11

20110019500 - Method, system and logging tool for estimating permeability of a formation: The invention relates to the methods for determining the permeability of a geological formation saturated with a liquid and provides for a method, a system and a logging tool for estimating permeability. The method comprises exciting a formation with acoustic energy pulses propagating into the formation, measuring the acoustic response... Agent: Schlumberger-doll Research Attn: Intellectual Property Law Department

20110019501 - Acoustic anisotropy and imaging by means of high resolution azimuthal sampling: In an acoustic logging system utilizing one or more acoustic sources, each with a specified radiation pattern around a source orientation, an acoustic signal is transmitted into a formation with a source oriented in a first source orientation. An acoustic waveform is received in response with a receiver oriented in... Agent: Howard L Speight

20110019502 - Practical autonomous seismic recorder implementation and use: Seismic systems and methods are provided to synchronize both source and receiver data using inexpensive timers and/or low energy timers to obtain high resolution seismic data.... Agent: Conocophillips Company -IPServices Group Attention: Docketing

20110013480 - Communication device and communication method: A communication device includes: an ultrasonic oscillating unit which detects or generates an ultrasonic wave; a communication unit which transmits and receives information using the ultrasonic wave; a storage unit which stores a table to which a communication command to designate communication with the another communication device is allocated in... Agent: GlobalIPCounselors, LLP

20110013481 - Method and apparatus for detecting marine deposits: Noise compensation in controlled source electromagnetics (CSEM) comprises measuring time-varying magnetic gradients of the marine environment subjected to CSEM. From the measured magnetic gradients, oceanographic electric and magnetic field noise is determined and used for noise compensation of CSEM measurements of electric and magnetic fields. Selection of magnetic gradient measurement... Agent: Nixon & Vanderhye, PC

20110013482 - Variable timing zenseis: Seismic systems and methods are provided to collect variable seismic data, for coordinating source energy and receiver data as well as using both to obtain high resolution seismic data.... Agent: Conocophillips Company -IPServices Group Attention: Docketing

20110013483 - System and method for suppression of seismic multiple reflection signals: A method of modeling seismic wave-field data in order to suppress near-surface and sub-surface related multiple reflection signals is provided. The reflection signals include main primary reflection signals, main random noise signals, main multiple reflection signals, residual primary reflection signals, residual random noise signals, and residual multiple reflection signals. Main... Agent: Abelman, Frayne & Schwab

20110013485 - Downscan imaging sonar: A downscan imaging sonar utilizes a linear transducer element to provide improved images of the sea floor and other objects in the water column beneath a vessel. A transducer array may include a plurality of transducer elements and each one of the plurality of transducer elements may include a substantially... Agent: Alston & Bird LLP

20110013484 - Linear and circular downscan imaging sonar: A method for providing a combined linear and circular downscan sonar display may include receiving linear downscan sonar data from a linear downscan transducer, receiving conical downscan sonar data from a circular downscan transducer, and combining the linear downscan sonar data and the conical downscan sonar data to produce combined... Agent: Alston & Bird LLP

20110013486 - Scanner: An ultrasonic scanner has an encoder contacting a drum containing an array. The scanning assembly can be replaced via a snap fit formation. The encoder and drum are resiliently biased and movable relative to the chassis. The array can also be movable relative to the chassis.... Agent: Lowe Hauptman Ham & Berner, LLP

20110013487 - Apparatus, systems and methods for enhanced detection, synchronization and online doppler scale estimation for underwater acoustic communications: Advantageous online and/or real-time OFDM-based underwater acoustic (UWA) apparatus, systems and methods are provided according to the present disclosure. The apparatus, systems and methods employ a receiver with a bank of parallel branches, with each branch having a self-correlator matched to a different waveform scaling factor. A detection is declared... Agent: Mccarter & English, LLP Stamford

20110013488 - Sub-beam forming receiver circuitry for ultrasound system: Multi-channel receiver circuitry for a sub-beam forming receiver of an ultrasound system in which digital filtering, down-sampling and successive data storage circuitry impose programmable fine and coarse time delays on received digital data signals.... Agent: Vedder Price/nsc

20110007602 - Accuracy of a compass provided with a carrier structure for use in subterranean surveying: Techniques or mechanisms are provided to improve accuracy in determining headings and/or shapes of carrier structures based on measurements made by one or more compasses that are attached to or provided with the carrier structures. The carrier structures are used to carry survey receivers that detect survey signals affected by... Agent: Westerngeco L.L.C. Kevin Mcenaney,IPDept

20110007603 - Method for positioning the front end of a seismic spread: Systems and methods for determining the position of a buoyancy element in a marine survey are described in which a passive reflecting material is disposed on the buoyancy element to enable a radar on the vessel to detect the position of the buoyancy element. The radar may emit a frequency... Agent: Westerngeco L.L.C. Kevin Mcenaney,IPDept

20110007604 - Method for propagating pseudo acoustic quasi-p waves in anisotropic media: A computer-implemented method for pseudo acoustic quasi-P wave propagation which remain stable in anisotropic media with variable tilt and is not limited to weak anisotropic conditions. The method includes acquiring a seismic exploration volume for a subsurface region of interest, and determining a modeling geometry for the seismic exploration volume.... Agent: Chevron Corporation

20110007605 - Measurement method for a granular compaction pile using crosshole seismic testing: A measurement method for a granular compaction pile 10 using a crosshole seismic test. The measurement method includes forming first to fifth measurement holes around the granular compaction pile, injecting grouting material into the first to fifth measurement holes and inserting casings into the first to fifth measurement holes, respectively,... Agent: Ratnerprestia

20110007606 - Underwater surveillance: A counter-terrorism underwater surveillance system for detecting swimming intruders includes a sonar array 20 comprising a plurality of sensor elements which both transmit and receive acoustic signals. Power amplifiers 22 generate electric transmit signals which are converted to acoustic form for transmission by the sonar array 20. Incoming acoustic signals,... Agent: Ryder, Lu, Mazzeo & Konieczny LLC

20110007608 - Geophone having improved damping control: A geophone in which a coil bobbin assembly ideally includes a provision for receiving a third coil winding between the upper and lower coils. A third mass-tuning coil is wound around the bobbin whose purpose is to adjust the overall mass of the bobbin assembly with greater accuracy and precision... Agent: Andrews & Kurth, L.L.P.

20110007607 - Geophone having improved sensitivity: A geophone utilizing an Alnico-9 magnet and having an improved sensitivity over Alnico-9 geophones of prior art through the lengthening of the parasitic air gap between the upper and lower pole pieces which, results in less magnetic flux leakage. The flux concentration through the geophone coils is increased and shifted... Agent: Andrews & Kurth, L.L.P.

20110007609 - Vertical geophone having improved distortion characteristics: A vertical geophone that includes a lower frequency spring, which forms part of the geophone electrical circuit, that is positioned directly on the lower end cap This arrangement eliminates the “spring supported by a spring” arrangement of prior art geophones to minimize geophone distortion and simplify tuning of the frequency... Agent: Andrews & Kurth, L.L.P.

20110002191 - Active sonar apparatuses and methods: An active sonar detection system may include a transmitter, which may project into the transmissive medium signals of any frequency, amplitude or phase using one or more transducers. A transmit beamformer to provide transmission directionality may also be included. Generated transmit waveforms may have different temporal and frequency spectra that... Agent: Venable LLP

20110002192 - Jointly interpolating and deghosting seismic data: A technique includes representing actual measurements of a seismic wavefield as combinations of an upgoing component of the seismic wavefield and ghost operators. Interpolated and deghosted components of the seismic wavefield are jointly determined based at least in part on the actual measurements and the representation.... Agent: Jeffrey E. Griffin Westerngeco, L.L.C.

20110002193 - Active steering systems and methods for marine seismic sources: Systems and methods for automatic steering of marine seismic sources are described. One system comprises a marine seismic spread comprising a towing vessel and a seismic source, the seismic source comprising one or more source arrays each having a center of source array, each source array having one or more... Agent: Westerngeco L.L.C. Kevin Mcenaney,IPDept

20110002194 - Method for geophysical and geological interpretation of seismic volumes in the domains of depth, time, and age: Method for transforming geologic data relating to a subsurface region between a geophysical depth domain and a geologic age domain. A set of topologically consistent surfaces (252a) is obtained that correspond to seismic data (252). The surfaces are enumerated in the depth domain. An age is assigned to each surface... Agent: Exxonmobil Upstream Research Company Law Department

20110002195 - Method to estimate towed array angles: A towed array is provided with hot-film sensors and anemometer circuitry to calculate the angle of inclination of the towed array in real time during deployment of the towed array in a sea water environment. The hot-film sensors are arranged in pairs along the length of the towed array to... Agent: Naval Undersea Warfare Center Division Newport

20110002196 - Electronic rodent repeller: A rodent repeller having an audio signal generator configured to generate a chattering sound that mimics a distressed rodent. The audio signal generator produces a variable sound frequency to generate the chattering sound of distressed rodents.... Agent: Cislo & Thomas LLP