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8971178 Calibration correction for implicit beamformer using an explicit beamforming technique in a wireless MIMO communication system  
A transmitter beamforming technique for use in a MIMO wireless communication system determines (i) a partial description of a reverse channel without determining a full dimensional description of...
8971149 Method, device and processing algorithm for multiple and noise elimination from marine seismic data  
Computing device, computer instructions and method for simultaneously denoizing and attenuating multiples in seismic data recorded with seismic receivers. The method includes receiving the seismic...
8960008 System for measuring vibrations occuring on a surface  
A device and system is provided for amplifying vibrations resulting from underwater acoustic signals. In operation, a laser interrogation beam is directed along an axis at the retro-reflector...
8964500 Communication in a seismic sensor array  
A method, system, and apparatus for communicating data with a seismic sensor are provided. The method comprises identifying data to be transmitted and one or more seismic events that correspond to...
8964501 System and technique to determine high order derivatives from seismic sensor data  
A technique includes obtaining multi-component seismic data acquired by two or more seismic sensors while in tow. The multi-component seismic data is indicative of a pressure wavefield and...
8964506 Networked sonar observation of selected seabed environments  
A sonar transducer network for observing a seabed includes a controller. A first transducer assembly includes a first acoustic transducer to convert a first ping to a first electrical signal; and...
8964507 Systems and methods implementing frequency-steered acoustic arrays for 2D and 3D imaging  
Acoustic arrays transmitting and/or receiving multiple, angularly dispersed acoustic beams are used to generate 2D and 3D images. The acoustic arrays may comprise frequency-steered acoustic arrays...
8964503 Petrophysics-guided processing of LWD acoustic data  
Formation evaluation measurements are used to estimate formation lithology. The estimated lithology is used to provide an estimate of acoustic wave slowness. The estimated acoustic wave slowness...
8964505 Device and method for determining seismic offset in marine acquisition  
Computing device and method for generating an image of a subsurface. The method calculates an offset shift of measured offsets between a seismic source and plural receivers of a streamer. The...
8964504 Method and apparatus for evaluating a cemented borehole casing  
A method of evaluating a cased borehole in an earth formation includes: emitting at least one acoustic signal into the borehole via an acoustic source and detecting a return acoustic signal via an...
8965002 Apparatus and method for enhancing audio quality using non-uniform configuration of microphones  
An audio quality enhancing apparatus and method is provided in which a microphone array has a non-uniform configuration and thus a beam pattern of a desired direction is obtained in a wide range...
8964502 Zero offset profile from near-field hydrophones  
Method for acquiring zero offset data from a marine seismic survey. Seismic data are recorded using source signature monitor receivers located very near the air guns or other sources (81). The...
8964508 Device for and method of repelling animals  
A weather-resistant housing (1 a, 1 b) provides a chamber (1 b) containing an acoustic generator. An acoustic outlet (2) is located, in use, to direct an acoustic signal into air of the animal...
8965706 Noise filtering of seismit data  
Adaptive filtering method to remove ground roll from seismic data. In an M channel adaptive filter, weights Wi are set using an adaptive algorithm based on seeking the minimum in the partial...
8960280 Method for determining fracture plane orientation using passive seismic signals  
A method for determining fracture plane orientation from seismic signals detected above a subsurface formation of interest includes detecting seismic signals using an array of seismic sensors...
8960117 Method and apparatus to facilitate cleaning marine survey equipment  
Techniques are disclosed relating to using a remote operated vehicle (ROV) to facilitate cleaning of a submerged geophysical equipment (e.g., a streamer) being towed behind a tow vessel. The ROV...
8964509 Remote communication and control of acoustic detectors  
A method of controlling a function of an acoustic detector includes storing a reference power spectrum of a reference acoustic signal, the reference power spectrum being associated with a mode of...
8958269 Transducer for phased array acoustic systems  
A transducer includes a base, a horn, and a central element. The horn includes a first end coupled to the base and a second end extending from the base and having a perimeter that defines a...
RE45379 Frequency division beamforming for sonar arrays  
A sonar array for forming multiple transmit and/or receive acoustic beams by a frequency beamforming technique. In frequency division beamforming, beam steering direction is made a function of...
8958267 Seismic true estimated wavelet  
The invention relates to processing seismic data that includes signals from at least two sources and typically three or four sources where source separation is necessary for geophysical analysis....
8958580 Parametric transducers and related methods  
An ultrasonic emitter comprises a support member operable to support an ultrasonic emittive material. The support member includes a plurality of support ribs. The ultrasonic emittive material is...
8958266 Zero-offset seismic trace construction  
Described are methods for obtaining seismic signals representative of properties of the earth's interior, including the steps of obtaining near-field acoustic signals recorded in the vicinity of a...
8958268 User-interface target motion analysis method using two-dimensional parameter control and speed zoom  
Disclosed is a user-interface target motion analysis (TMA) method using two-dimensional parameter control and speed zoom, and the method includes a first step of displaying a user-interface target...
8958270 Monolithic flexure pre-stressed ultrasonic horns  
A monolithic ultrasonic horn where the horn, backing, and pre-stress structures are combined in a single monolithic piece is disclosed. Pre-stress is applied by external flexure structures. The...
8957787 System and method for disabled parking spot enforcement  
A system for disabled parking spot enforcement uses a proximity sensor for detecting entry of a vehicle within a parking spot designated for use by disabled people. A radiofrequency identification...
8950480 Downhole tool delivery system with self activating perforation gun with attached perforation hole blocking assembly  
A downhole tools deployment apparatus is disclosed. In an embodiment, the apparatus includes at least an in-ground well casing, a housing providing a hermetically sealed electronics compartment, a...
8953413 Method and device for scaring birds acoustically, in particular for an aircraft  
A device for acoustically scaring avian species includes means for emitting an acoustic sequence including the repetition of a combination of at least three categories of different synthetic...
8953414 Electromechanical transducer  
An electromechanical transducer according to an embodiment of the present invention is capable of selectively performing a transmitting and receiving operation by using elements of different...
8953411 Apparatus and method for imaging a subsurface using frequency-domain elastic reverse-time migration  
Provided are an apparatus and method for imaging a subsurface using frequency-domain reverse-time migration in elastic medium. The subsurface imaging method represents a frequency-domain imaging...
8953412 Method and assembly for determining landing of logging tools in a wellbore  
An assembly using an onboard controller employs sensors to precisely determine the landing status of downhole logging tools. A control algorithm of the onboard controller can enable an intelligent...
8950263 Low frequency folded pendulum with high mechanical quality factor, and seismic sensor utilizing such a folded pendulum  
The invention concerns a folded pendulum, comprising: a support (F);a test mass (PM);a simple pendulum (SP);an inverted pendulum (IP); the simple pendulum and the inverted pendulum being connected...
8952936 Method and device for position detection  
The present invention provides a method and device for position detection. For detection of a touch position, a segment of surface acoustic wave (SAW) is provided multiple times to be propagated...
8954173 Method and apparatus for profiling and identifying the source of a signal  
A method and apparatus for profiling and identifying the source of a signal is provided. A first method includes receiving a signal produced by a known source and creating a matrix of wavelet...
8952595 Micro-electro-mechanical transducers  
Some examples include at least one capacitive micro-electro-mechanical transducer (cMUT). For instance, the cMUT may include a substrate, a plate, and a resilient structure therebetween. In some...
8947980 Micro-geophone  
A micro geophone having pole pieces do not extend out around the sides of the magnet, thereby allowing a reduced geophone diameter for a given magnet diameter. The pole pieces are adhesively...
8949030 Attenuating sea-surface ghost wave effects in seismic data  
A method for processing seismic data. The method includes receiving the seismic data acquired by at least two receivers that are disposed at different depths. The method may then time-align the...
8945013 Real time ultrasound probe  
An external ultrasound probe assembly capable of scanning a three-dimensional volume is provided. The ultrasound probe assembly contains a plurality of ultrasonic transducers disposed along a...
8943893 Ultrasonic sensor  
An ultrasonic sensor is provided at a bumper 31 of a vehicle 3 and used in a vehicle obstacle detector 1 that detects the presence of an obstacle within a detection area by transmitting and...
8947977 Fuzing arrangements  
A proximity fuzing arrangement for fuzing warheads carried by missiles which reduces the likelihood of the missile being detonated prematurely by such cases as rain or enemy counter measures. The...
8947981 Attenuating mass for an ultrasonic sensor, use of epoxy resin  
Temperature stability at the temperatures prevailing in a motor and stability that is required over an entire temperature range are provided by an attenuating mass. This enables continuous use at...
8947978 System and method for estimating the direction of arrival of a sound  
A system and method for estimating the direction of arrival of sounds. One method including the steps of: forming a reference signal; detecting sound with two or more spatially separated,...
8947973 Active detection of marine mammals during seismic surveying  
An embodiment according to one or more aspects of the present disclosure for conducting a marine survey includes towing a survey spread comprising a plurality of receivers and an energy source...
8947974 Seismic measurements while drilling  
A downhole tool starts recording seismic energy. During the recording time, a surface seismic source is activated a specified number of times with a nominally defined separation between...
8947979 Transducer mounting blocks and method of use thereof  
A mounting block for fastening equipment such as a sonar transducer onto the hull or transom of a boat which consists of a flat body portion formed into a predetermined size and shape, the body...
8944183 Low frequency formation shear slowness from drilling noise derived quadrupole array data  
The present disclosure is related to apparatuses and methods measuring and processing a characteristic of subsurface earth formations penetrated by a borehole. More specifically this present...
8947975 Time-variable gain for correction of fluid attenuation in downhole acoustic tools  
An apparatus for use in a wellbore is provided that in one embodiment may include at least one transmitter configured to generate acoustic signals in the wellbore, at least one receiver configured...
8948463 Method for analyzing seismic data  
A method for analyzing seismic data by generating a post-migration common image gather in a dip angle domain from measured seismic data; detecting concave features related to reflection events in...
8947976 Harmonic attenuation using multiple sweep rates  
A technique includes generating seismic sweep sequences. Each of the seismic sweep sequences has an associated sweep rate. The technique includes varying the sweep rates to reduce harmonic...
8942059 Container system for seismic cable and stations  
Container systems used in storage, deployment or retrieval of a seismic cable array comprise a container, at least two coiling elements attached to a bottom side of the container, and storage...
8942064 Sending a seismic trace to surface after a vertical seismic profiling while drilling measurement  
A system, method and computer-readable medium for acquiring seismic data, which includes activating a seismic source at a surface location; defining a seismic trace of a seismic wave received at a...