|
Match
|
Document |
Document Title |
|
|
7612686 |
Emergency underwater notification device
The emergency underwater notification device disclosed, one of which would be carried by each diver on a team of divers at a dive site, comprises (a) an activator; (b) one or more primary signal...
|
|
|
7535799 |
Protective housing for an audio device
Disclosed herein are systems for housing an electronic audio device in harsh environments including aquatic and rugged environments. In one embodiment, a system is disclosed for allowing a user to...
|
|
|
7518952 |
Sonar sensor array signal distribution system and method
A system and method for signal distribution within a sensor array uses a coaxial transmission line. Taps are affixed to the outer conductor of the coaxial transmission line and include field...
|
|
|
7505364 |
Underwater navigation by aided light sensor
The present invention provides a navigation system for an unmanned underwater vehicle that includes at least two navigation sensors that provide latitude and longitude measurements of unequal...
|
|
|
7495999 |
Underwater guidance systems, unmanned underwater vehicles and methods
An unmanned underwater vehicle for use in water and with at least one acoustic signal source includes a vehicle body, a steering mechanism to direct the vehicle body through the water, a propulsion...
|
|
|
7471798 |
Microphone array having a second order directional pattern
A directional microphone system is disclosed, which comprises circuitry for low pass filtering a first order signal, and circuitry for high pass filtering a second order signal. The system further...
|
|
|
7450471 |
Automatic diver identification unit
An automatic diver identification unit for providing motorized and multi-directional surface movement relative to a position of an underwater diver and to identify the position of a diver at the...
|
|
|
7417923 |
Method and apparatus for performing an ultrasonic survey
An ultrasonic surveying method includes a network of transceivers adjacent the item to be surveyed to establish a reference plane and locating an array of pingers on the object to be surveyed to...
|
|
|
7408841 |
System and method for calculating the directivity index of a passive acoustic array
A software system and method is presented that calculates the sensor directivity at all spatial angles, and stores these values in a two dimensional matrix. These values are then used as additional...
|
|
|
7400142 |
Dynamic magnetic anomaly compensation
An array of three-axis magnetometers used for dynamic magnetic anomaly compensation are located at the corners of a parallelopiped, with pairs of magnetometer outputs used to derive a magnetic...
|
|
|
7388512 |
Diver locating method and apparatus
A system for locating a diver is provided. The system includes a diver module for association with a diver that is capable of producing both an audible frequency signal to assist in locating the...
|
|
|
7365650 |
Underwater RF propagation path
An underwater RF signal propagation path is created by utilizing a plurality of individual RF transceivers such as MEMS RF transceivers. Each MEMS RF transceiver has a predetermined buoyancy. A...
|
|
|
7362653 |
Underwater geopositioning methods and apparatus
A method and apparatus for determining the geophysical position of an autonomous underwater system utilizing underwater acoustic modems that exchange broadband underwater acoustic signals. The...
|
|
|
7349292 |
Increased effective aperture for receive arrays
A sonar dome having an acoustic array housed therein. A plurality of bubbles are generated within the fluid inside the sonar dome. The generated bubbles are of an amount and size to reduce the...
|
|
|
7333394 |
Navigational aid for diver
A diver unit computes the direction and distance to a specified target. When the target is obstructed, the diver unit receives navigation assistance data from another diver unit. The navigation...
|
|
|
7327636 |
Underwater sounding apparatus and method capable of calculating fish school information, volume of fish school and backscattering strength of single fish
An underwater sounding apparatus includes a transducer transmitting an acoustic sounding beam along a plurality of directional surfaces that intersect in three-dimensions and receiving echoes...
|
|
|
7312984 |
Protective enclosure and watertight adapter for an interactive flat-panel controlled device
A protective enclosure is disclosed for an interactive flat-panel control device. The protective enclosure is watertight, crush-resistant, and impact-resistant. An electrical adapter may disposed...
|
|
|
7289388 |
Estimation of background noise and its effect on sonar range estimation
A system and method for estimating the SNR in a sonar environment and for determining the effect of the estimated SNR on sonar ranging accuracy. The system includes a sensor, a transmitter, a...
|
|
|
7277359 |
Navigation processor, a system comprising such a navigation processor and a method of controlling an underwater system by such a navigation processor
A navigation processor is interfaced to an acoustic processor and to DGPS surface positioning equipment on a vessel. The navigation processor receives (a) position data from the DGPS surface...
|
|
|
7272075 |
Personal sonar system
The sonar device includes a sonar transducer, a noise filter, a microprocessor and an output device. The system warns the user when a hazardous objects is detected or when signals from companions...
|
|
|
7263032 |
System for housing an audio system in an aquatic environment
A submersible, waterproof enclosure for a portable audio device is disclosed. Also disclosed is a removable lid allowing for the inserting and removing of the device from the enclosure. The...
|
|
|
7245559 |
Acoustic fence
Methods and apparatus determine if an underwater intruder passes under a protective boundary. A sonar sensor system comprises a plurality of sonar sensor modules that are spaced on a protective...
|
|
|
7239580 |
Noise adaptive sonar signal processor
A system and method of performing sonar range estimations in a noisy sonar environment. The system includes a sensor, a transmitter, a receiver, a plurality of band-pass filters, a cross...
|
|
|
7230881 |
Submarine remote surface platform
A platform with a sensor is for coupling to a submarine or other underwater vehicle and for sending data about the seascape to the submarine. In an embodiment, the platform is coupled to the...
|
|
|
7190636 |
Diving suit and environmental detecting system
A diving suit and environmental detecting system includes a diving suit and aspirating assembly includes a torso portion, a first arm portion, a second arm portion, a first leg portion, a second...
|
|
|
7187622 |
Apparatus and methods for determining range and bearing using time-stamped messaging
An exemplary apparatus includes one or more “communicators” that are worn, carried by, or otherwise associated with a person or location in an environment. Each communicator includes a...
|
|
|
7187619 |
Method and apparatus for high-frequency passive sonar performance prediction
A system and method for predicting passive, high-frequency sonar array performance at any underwater location, implemented as a software package running on a computer. An operator selects an...
|
|
|
7180735 |
Protective enclosure and watertight adapter for an interactive flat-panel controlled device
A protective enclosure is disclosed for an interactive flat-panel control device. The protective enclosure is watertight, crush-resistant, and impact-resistant. An electrical adapter may disposed...
|
|
|
7173880 |
Arrangement with an acoustic array with a sound velocity meter
Arrangement with an acoustic array with a sound velocity meter, suitable to be arranged under water. The acoustic array is able to receive acoustic signals from an underwater device and to provide...
|
|
|
7164621 |
Underwater sounding apparatus
While keeping a propeller located in a negative direction of a y-axis turning, transmission of acoustic waves from vibrating elements of a transducer unit is interrupted. Reference signals “A”...
|
|
|
7149150 |
Underwater surveillance system
A plurality of sensing modules are deployed by positioning thereof in spaced relation to each other on a seafloor surface at a shallow depth to establish a targeted seawater zone within which...
|
|
|
7148811 |
Emergency underwater notification device
The emergency underwater notification device disclosed, one of which would be carried by each diver on a team of divers at a dive site, comprises (a) an activator; (b) one or more primary signal...
|
|
|
7145835 |
Personal sonar system
The sonar device includes a sonar transducer, a noise filter, a microprocessor and an output device. The system warns the user when a hazardous objects is detected or when signals from companions...
|
|
|
7139223 |
Deep water surveillance system
An elongated optical fiber is vertically positioned within seawater in a deep-depth targeted zone by vertical suspension thereof from a floating buoy. Electrode sensor arrays are positioned in...
|
|
|
7120089 |
Self-contained ambient noise recorder
The present invention relates to an instrumentation apparatus for receiving and recording acoustic signals in a range of depths of approximately 5–100 m beneath the ocean surface and for...
|
|
|
7102532 |
Subsea communication
Methods of subsea communication in which a cathodic protection anode is used as a transmitting antenna. The signals are received at a second location by two electrodes which are spaced apart by...
|
|
|
7088640 |
Method of obtaining acoustic metrology data
The relative position and orientation between two subsea structures ( 210, 212 ) are measured by ultra-short baseline acoustic metrology. Dual mode master/slave ( 220, 222 ) stations comprising a...
|
|
|
7057973 |
Method and device for measuring cavitation
A method, probe, and system for detecting presence of cavitation in a fluid and measuring cavitation density and intensity of a specific locale in the fluid. A first cavitation void and associated...
|
|
|
7054230 |
Locator device for submerged structures
Locator device that can be used to aid in the recovery of or to provide positional information about a structure that becomes submerged. The locator device for submerged structures consists of one...
|
|
|
7035166 |
3-D forward looking sonar with fixed frame of reference for navigation
An imaging sonar system develops three-dimensional images of the space below, to the sides, and forward of a ship relative to a fixed frame of reference. Various features permit the system to be...
|
|
|
7020046 |
System and method for target motion analysis with intelligent parameter evaluation plot
An underwater target tracking capability is disclosed for a grid-search technique utilizing parameter evaluation plot techniques comprising processing acoustic sonar measurements in conjunction...
|
|
|
7020044 |
Apparatus for producing gaseous vapor baffle
An apparatus that produces a gaseous vapor baffle that isolates an undersea sonar system from acoustic noise. The apparatus allows for craft carrying undersea sonar systems to travel at relatively...
|
|
|
7002877 |
Method and apparatus for active sonar performance prediction
A system and method for predicting active, low-frequency sonar array performance in shallow, littoral waters using a physics-based modeling of acoustic reverberation. An operator characterizes the...
|
|
|
6967899 |
Method for classifying a random process for data sets in arbitrary dimensions
A method is provided for automatically characterizing data sets containing data points described by d-dimensional vectors obtained by measurements, such as with sonar arrays, as either random or...
|
|
|
6961657 |
Submarine launched expendable radio navigation buoy system
A submarine launched expendable radio navigation system (SSXRN) buoy method and apparatus. According to one embodiment, a method for determining a submarine geographic position using a SSXRN buoy...
|
|
|
6941226 |
Method for determining, recording and sending GPS location data in an underwater environment
Underwater position determination is provided by combining sonar-derived ranging data between a sonar receiver and a sonar transmitter with GPS position data to provide geographically-referenced...
|
|
|
6914530 |
Liquid ingress detection
A method for detecting the ingress of liquid into an empty elongate hollow structure such as a support for an offshore platform which is at least in part submerged in a liquid. Sound is introduced...
|
|
|
6909669 |
Scour detection and monitoring apparatus adapted for use in lossy soils and method of employment thereof
A sensor for detecting and monitoring scour in sediment positioned beneath a body of water, which includes a probe at least partially embedded in the sediment. Sensor electronics are superimposed...
|
|
|
6894950 |
Underwater vehicle thermal boundary detection system
A thermal sensor system is provided in combination with a maneuverable vehicle, particularly in an underwater application. The system includes a transport pipe having an intake and output for the...
|
|
|
6879543 |
Acoustic processing for estimating size of small targets
A method is provided for estimating the size of an object from a region of a fluid medium when that object is emitting acoustic radiation of known wavelength λ on its own or as the result of being...
|