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US20110110197 Broadband Underwater Acoustic Transducer  
An efficient, broadband, underwater acoustic transducer having nominally a quasi-omnidirectional radiation pattern is realized with a plurality of thin walled radially vibrating spherical...
US20120188850 ULTRASONIC SENSOR UNIT AND ELECTRONIC DEVICE  
An ultrasonic sensor unit includes a transmission base plate and a reception base plate. The transmission base plate includes an ultrasonic transmission sensor configured and arranged to transmit...
US20130301380 METHOD FOR DUAL MODALITY OPTOACOUSTIC IMAGING  
A real-time imaging method that provides ultrasonic imaging and optoacoustic imaging coregistered through application of the same hand-held probe to generate and detect ultrasonic and optoacoustic...
US20150212223 METHODS AND APPARATUS FOR DETERMINING RESIDUAL STATIC CORRECTIONS USING INDIVIDUAL RANGES  
Methods and apparatuses calculate residual static corrections to be applied to survey data to account for upper-layer effects, such that the residual static corrections are each within an...
US20120029738 AIRCRAFT CAPABLE OF HOVERING, AIRCRAFT MANEUVERING ASSIST METHOD, AND INTERFACE  
An aircraft capable of hovering, and characterized by having at least one sensor, which has a plane sweep region and is designed to acquire, when the aircraft is manoeuvring, values of respective...
US20110240364 ACOUSTIC MEASUREMENTS WHILE USING A CORING TOOL  
Embodiments disclosed herein relate to one or more embodiments and methods to make downhole measurements. Embodiments disclosed herein relate to one or more embodiments and methods to measure the...
US20120087518 Full Range Planar Magnetic Microphone and Arrays Thereof  
Contemplated planar magnetic microphones have a magnet and diaphragm arrangement such that substantially homogenous vertical and high horizontal magnetic flux density is realized in the...
US20140241130 APPARATUS, SYSTEMS AND METHODS FOR LOW POWER DETECTION OF MESSAGES FROM AN AUDIO ACCESSORY  
According to one aspect, an electronic device adapted to be controlled by an audio accessory. The electronic device includes at least one resonator. Each resonator is tuned to respond to a...
US20120026830 METHODS AND SYSTEMS TO ELIMINATE UNDESIRABLE VARIATIONS IN TIME-LAPSE SEISMIC SURVEYS  
Device and method for processing 4-dimensional (4-D) seismic traces. The method includes receiving at least two vintages of seismic traces recorded by seismic receivers for a same subsurface area,...
US20100149912 SYSTEM AND METHOD FOR REDUCING SIGNATURE VARIATION OF SEISMIC SOURCES  
A technique facilitates the reduction of seismic source signature variation during a seismic survey. The technique involves estimating an azimuth angle and/or a departure angle for one or more...
US20130094330 METHODS AND APPARATUS FOR PASSIVE DETECTION OF OBJECTS IN SHALLOW WATERWAYS  
A method and system for detecting watercraft in shallow waterways. In one example, an underwater detection system includes an underwater power source, an acoustic sensor, a controller coupled to...
US20130088936 SONAR TORPEDO COUNTERMEASURE  
Described herein are countermeasure techniques (both active and passive). The techniques employ a plurality of devices that can be launched to different locations. The plurality of devices at the...
US20070295504 Providing A String Having An Electric Pump And An Inductive Coupler  
A system for use in a well includes a string for placement in the well, where the string including an electric pump and a first inductive coupler portion. A completion section is deployed in a...
US20110110191 METHOD FOR DETERMINING DISCRETE FRACTURE NETWORKS FROM PASSIVE SEISMIC SIGNALS AND ITS APPLICATION TO SUBSURFACE RESERVOIR SIMULATION  
A method for mapping a fracture network that includes determining a source of at least one seismic event from features in recorded seismic signals exceeding a selected amplitude (“visible seismic...
US20090141589 Flashes sonar device with LCD annotations  
A flasher sonar device includes a motor driven flasher that produces light output pulses at angular positions along a flasher ring lens based upon sonar returns. A liquid crystal display (LCD)...
US20110007607 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...
US20150168580 Downhole Elastic Anisotropy Measurements  
A downhole acoustic logging tool includes at least one acoustic transmitter and first and second arrays of acoustic receivers deployed on a tool body. The first array of acoustic receivers...
US20120249338 WIRELESS NETWORK DISCOVERY AND PATH OPTIMIZATION ALGORITHM AND SYSTEM  
A wireless modem for communication in a network of wireless modems via a communication channel includes a transceiver assembly, transceiver electronics and a power supply. The transceiver...
US20130322205 Seismic Surveying Techniques with Illumination Areas Identifiable from Primary and Higher-Order Reflections  
Techniques are disclosed relating to determining or executing a survey pattern for a marine seismic survey vessel. The survey pattern may be determined based on a determined subsurface...
US20120092959 TECHNIQUE AND SYSTEM TO DETERMINE PROPERTIES OF A SYSTEM OF HYDRAULIC FRACTURES  
A technique includes determining a magnitude and frequency distribution of seismic events attributable to hydraulic fracturing in a given stage of a well. The technique includes based on the...
US20150192672 SYSTEMS AND METHODS FOR IDENTIFYING AND LOCATING TARGET OBJECTS BASED ON ECHO SIGNATURE CHARACTERISTICS  
Systems and methods for identifying and locating target objects based on echo signature characteristics are disclosed. According to an aspect, a system includes a transmitter configured to...
US20150063060 SONAR NAVIGATION SYSTEM AND METHOD  
A method for pre-determining an underwater objects GPS position using a rotatable scan sonar unit linked to a boat, magnetic compass and GPS receiver. This system determines the underwater objects...
US20150063059 SONAR NAVIGATION SYSTEM AND METHOD  
A method for pre-determining an underwater objects GPS position using a rotatable scan sonar unit linked to a boat, magnetic compass and GPS receiver. This system determines the underwater objects...
US20120218867 ELECTROMECHANICAL TRANSDUCER  
Provided is an electromechanical transducer which is capable of correcting or compensating a fluctuation in the transmission/reception characteristics of an elastic wave transmitting/receiving...
US20060098530 Directional transducers for use in down hole communications  
A communication device associated with a well has a transducer and a controller. The transducer is part of a first communication device and converts a signal between an electrical form and an...
US20050047276 ULTRASONIC BEAMFORMER AND CORRELATOR  
A printed circuit board that performs as an ultrasonic beamformer and a correlator that includes an advanced correlation algorithm that greatly reduces the cost of correlation especially useful...
US20120269031 ULTRASONIC TRANSMITTER AND RECEIVER WITH COMPLIANT MEMBRANE  
An ultrasonic transmitter and receiver includes a MEMS composite transducer. The MEMS composite transducer includes a substrate. Portions of the substrate define an outer boundary of a cavity. A...
US20150241585 ADJUSTABLE SENSOR STREAMER STRETCH SECTION FOR NOISE CONTROL FOR GEOPHYSICAL SENSOR STREAMERS  
A sensor streamer stretch section includes at least one spring. A means for coupling the spring at each end to at least one of a sensor streamer and a lead in cable is included. A cable is coupled...
US20130114374 ADJUSTABLE SENSOR STREAMER STRETCH SECTION FOR NOISE CONTROL FOR GEOPHYSICAL SENSOR STREAMERS  
A sensor streamer stretch section includes at least one spring. A means for coupling the spring at each end to at least one of a sensor streamer and a lead in cable is included. A cable is coupled...
US20110288457 Sonic resonator system for use in biomedical applications  
Disclosed herein is a sonic resonator system and a method of using the system which is useful in therapeutic, cosmetic or aesthetic, diagnostic, exploratory and other medical procedures,...
US20090303834 COMBINING GEOMECHANICAL VELOCITY MODELING AND TOMOGRAPHIC UPDATE FOR VELOCITY MODEL BUILDING  
A method for updating a velocity model of a subsurface of the earth is described herein. A tomographic update to the velocity model of the subsurface may be performed to generate a tomographic...
US20090147626 Foldable marine seismic source  
The invention relates to a source device for the emission of seismic waves designed to operate by being towed by a vessel. The source device according to the invention comprises at least three...
US20140269188 ROBUST TELEMETRY REPEATER NETWORK SYSTEM AND METHOD  
A robust network telemetry repeater system exploits the repeater structure of data propagation and transmission and reception bi-directionality to increase network robustness. For example,...
US20070133351 Human target acquisition system and method  
The invention is a system for acquiring and mapping the location of a human target within a targeted zone defined by boundaries. The system includes a remote sound detection component, which may...
US20150124565 DETERMINING POSITION OF UNDERWATER NODE  
A method of determining the position of an underwater node. The positions of three or more transmitters are determined. Each transmitter transmits at least four pulses, wherein a time difference...
US20120195162 Devices and Methods for Positioning Tows in Marine Seismic Systems  
A method and system for deploying seismic tows, such as seismic streamers, from a common carrier rope for conducting marine seismic surveys. The deployment system generally comprises a carrier...
US20100020642 ESTIMATING FORMATION STRESSES USING RADIAL PROFILES OF THREE SHEAR MODULI  
Maximum and minimum horizontal stresses, and horizontal to overburden stress ratio, are estimated using radial profiles of shear moduli. Inversion enables estimation of maximum and minimum...
US20140153361 Open Collar for Multi-Cable Towing System  
Disclosed are methods and systems for towing multiple source cables with spreader lines coupled to the source cables using open collars. An example system for multi-cable towing may comprise a...
US20110085417 String of Sensor Assemblies Having a Seismic Sensor and Pressure Sensor  
A system includes an electrical medium and a string of sensor assemblies having corresponding outputs connected to the electrical medium, where at least one of the sensor assemblies includes a...
US20070258326 Telemetry wave detection apparatus and method  
Non-contacting means of measuring the material velocities of harmonic acoustic telemetry waves travelling along the wall of drillpipe, production tubing or coiled tubing are disclosed. Also...
US20100315901 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...
US20110149683 Combined impulsive and non-impulsive seismic sources  
A method for seismic exploration of subsurface rock formations includes actuating an impulsive seismic energy source proximate the rock formations. A non-impulsive seismic energy source is...
US20150003195 VARIABLE DEPTH MULTICOMPONENT SENSOR STREAMER  
Variable depth multicomponent sensor streamer. At least some of example embodiments are methods including designing a depth profile for first portion of a sensor streamer by determining a first...
US20130208567 PHASE MODULATION AND NOISE MINIMIZATION FOR SIMULTANEOUS VIBROSEIS ACQUISITION  
An embodiment of the invention includes simultaneous drive signals whose respective phase angle offset(s) varies over a portion or duration of the simultaneous sweeps. Other embodiments are...
US20120092965 ACOUSTIC SENSOR SYSTEM FOR DETECTING ELECTRICAL CONDUCTIVITY FAULTS IN AN ELECTRICAL DISTRIBUTION SYSTEM  
An acoustic sensor system is for an electrical distribution system having a number of phases. The acoustic sensor system comprises: a plurality of sets of acoustic sensors structured to detect an...
US20140198608 MULTI-LEVEL SEISMIC SOURCE AND METHOD  
A depth-varying marine acoustic source array is configured for generating an acoustic wave in a body of water. The depth-varying marine acoustic source array includes a float; plural source points...
US20060215494 Autolocating underwater beacon and method for deployment thereof  
An underwater acoustic beacon includes a subsystem for determining geographical position, and a transmitter for transmitting coordinates of the position at the point of impact when the beacon is...
US20130250726 QUANTITATIVE ANALYSIS OF TIME-LAPSE SEISMIC DATA  
A method for quantitative analysis of time-lapse seismic data of a reservoir, including: obtaining a plurality of compressional and shear velocities from a seismic inversion analysis; selecting a...
US20120008462 Vibroseis Acquisition Technique and System Using Dynamic Source Control  
A technique includes during a seismic acquisition, selectively forming groups of at least one seismic source from a plurality of seismic sources as the seismic sources become available based at...
US20140119159 Methods For In-Situ Borehole Seismic Surveys Using Downhole Sources  
Methods for in-situ reservoir investigation by borehole seismic methods are provided using receiver(s) and a downhole source. The downhole source may be a microseismic event, and may be located...