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| Application No. | Application Title | Issue Date |
| 20080112266 | Seabed Resource Exploration System and Seabed Resource Exploration Method A seabed resource exploration system includes: a vibrator 1 for transmitting a sound wave into the sea and receiving a scattered wave in which the sound wave is reflected on a boundary surface between seawater and a mixture of methane gas and methane hydrate, whi... | 05/15/2008 |
| 20080101159 | 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 decrease. The portable sonar device can be built into various watersport d... | 05/01/2008 |
| 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.... | 04/03/2008 |
| 20070297289 | 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 accuracy, a processor and a memory. The memory stores a machine-readable set o... | 12/27/2007 |
| 20070297290 | Systems and Methods for Providing Connectivity in an Underwater Environment A system for providing connectivity in an underwater environment includes a linking system, a target and a linking member. The linking system includes a first base and an unmanned, submersible mobile unit. The target is remote from the first base. The linking member is ... | 12/27/2007 |
| 20070280053 | WATERPROOF AUDIO HEADSET Disclosed herein is a waterproof audio headset comprising a speaker contained within a submersible waterproof housing. ... | 12/06/2007 |
| 20070189120 | HOUSING MECHANISM FOR ELECTRONIC DEVICE An exemplary housing mechanism (8) for an electronic device includes a cover (10) and a frame (20). The cover has a cover body (11), a sealing element (12), and a sidewall (13) formed around the cover body. A surface of a distal... | 08/16/2007 |
| 20070165489 | Underwater sounding method and apparatus Methods and apparatuses process signals. The method according to one aspect of the present invention receives a first signal; obtains a second signal and a third signal from the first signal, wherein a gain of the second signal is smaller than a gain of the third signal... | 07/19/2007 |
| 20070127316 | 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 decrease. The portable sonar device can be built into various watersport d... | 06/07/2007 |
| 20070086273 | 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 control an audio device having a capacitive touch sensitive control featu... | 04/19/2007 |
| 20070070813 | Housing for accommodating an audio device for underwater use A housing comprises a rigid container and a lid adapted to fit the rigid container, wherein the rigid container is adapted to accommodate an audio device. A hub with an external recess is formed at an end of the housing. A latch has a buckle and a chuck, wherein the buc... | 03/29/2007 |
| 20060239122 | Apparatus, systems and methods for determining position of marine seismic acoustic receivers Apparatus, systems and methods for calculating position of marine seismic acoustic receivers, and for estimating sound velocity profile of a fluid, are disclosed. One position calculation system includes a vessel, two or more vessel hull-mounted transmitters, a pluralit... | 10/26/2006 |
| 20060109744 | System and method for computing inorganic particle suspensions by wave and current action A method for estimating a suspended sediment distribution in an ocean region. The method includes receiving time-dependent variables including wave height, wave period, wave propagation direction, steady current magnitude, steady current direction, and water depth, and ... | 05/25/2006 |
| 20060083111 | Method and apparatus for detecting submarines A method for detecting, tracking and locating submarines (24) utilizes pulsed coherent radiation from a laser (12) that is projected down through a water column, with particles in the water producing speckle from backscatter of the random particle distribu... | 04/20/2006 |
| 20050286345 | 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 active sonar's acoustic transmitter and receiver, the environment it is o... | 12/29/2005 |
| 20050254345 | 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 energy perturbation, produced in a first fluid, moves within the first fl... | 11/17/2005 |
| 20050117755 | 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” and “B” which are receiving beam signals having principal acoustic ax... | 06/02/2005 |
| 20050007879 | Ultrasonic transmitter, ultrasonic transceiver and sounding apparatus A driver circuit for generating a driving signal by pulse-width modulation (PWM) includes a half-bridge circuit formed essentially of a pair of series-connected FETs. When the level of an ultrasonic signal, or of the driving signal, is to be maximized, the individual FE... | 01/13/2005 |
