Matches 1 - 50 out of 100 1 2 >


Match Document Document Title
8982668 Semiconductor device and method of forming same for correlation detection  
In an embodiment a semiconductor device correlates a received signal with a known pattern. A correlation output is used as a basis for forming a confidence reference level. The confidence...
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...
8600592 Homing system and method for an autonomous underwater vehicle  
A submarine homing system includes an acoustic emitter configured to emit an acoustic signal comprising at least two narrow-band tones, each narrow-band tone having a respective predetermined...
8217794 Active RFID system for port logistics using multi-hop communication and communication method in the system  
Provided are an active radio frequency identification (RFID) system for port logistics and a communication method in the RFID system in which the forms of commands and response messages in the...
7800513 High performance communication system  
A system for communicating information in a borehole between tool assemblies in a tool string includes receiving an information signal and separating a first signal that may be a power and low...
RE41629 Ultrasonic transceiver and remote controlled devices for pets  
An ultrasonic transceiver device and remote output devices controlled by the transceiver for use by domestic pets. The transceiver utilizes a fixed interval edge detect modulation system to lock...
7490428 High performance communication system  
A system for communicating information in a borehole between tool assemblies in a tool string includes receiving an information signal and separating a first signal that may be a power and low...
7474208 Method and system for locating an object  
One aspect of the invention is a system for locating an object. The system may include, for example, an object electromagnetic receiver, an audio amplifier, an audio transducer, and an object...
7307537 Identification tag  
The invention relates to an identification chip for insertion in an object located in a liquid. The identification chip comprises an acoustic resonator (100), which exhibits a number of distinct...
6674687 System and method for navigation using two-way ultrasonic positioning  
A two-way ultrasonic positioning and navigation system and method involve a plurality of objects each capable of transmitting and receiving ultrasonic signals. A first object transmits an...
6233202 Dipping sonar transducer housing  
A dipping sonar transducer housing includes a generally cylindrical housing (10) which is suspended at the end of a cable (12) connected to tile housing through a vibration isolation module (14)...
6163503 System, apparatus, and method for geographic positioning of marine fauna  
A system, apparatus, and method for determining positions of underwater animals involves emplacement of an acoustic transponder on the animal and establishing communications with a transponder...
5872516 Ultrasonic transceiver and remote controlled devices for pets  
An ultrasonic transceiver device and remote output devices controlled by the transceiver for use by domestic pets. The transceiver utilizes a fixed interval edge detect modulation system to lock...
5691957 Ocean acoustic tomography  
An acoustic tomography telemetry system and method allowing spatially averaged ocean temperatures to be measured in real-time. The system includes autonomous acoustic sources mounted on subsurface...
5504477 Tracking system  
A performer tracking system, and an associated method, for tracking movements of at least one performer upon a stage. A plurality of signal transmitters are positioned about the stage and transmit...
5497356 Method and apparatus for verifying the location of a seismic bottom cable in real time  
One or more slave acoustic transponders are secured to selected parts of a seismic bottom cable whose location is imperfectly known. A master transponder broadcasts an interrogation pulse from...
5469403 Digital sonar system  
A transponder of an active digital sonar system identifies a multifrequency underwater activating sonar signal received from a remote sonar transmitter. The transponder includes a transducer that...
5452262 Radio telemetry buoy for long-range communication  
A remotely controlled radio telemetry buoy serves as a communication link tween an underwater acoustic interrogation/receiving transponder system and a remotely located surface platform. The buoy...
5426617 Long baseline tracking system  
A method for reliably locating the position of a submerged submarine with spect to a surface ship. A multiple number of transponders are placed at known locations near the sea floor, in the area...
5392771 Underwater monitoring and communication system  
A monitoring device for portable breathing apparatuses having a manometer by means of which the pressure in the pressure container of the breathing apparatus is detected, and having a transmitter...
5331602 Acoustic navigation and diving information system and method  
The positions of one or more underwater divers or vehicles are determined through an underwater acoustic communication link and at least a base buoy and one remote buoy with acoustic transponders...
5185725 Diver locator system  
An underwater location system (16) is disclosed having a plurality of locator modules (18), each capable of finding the relative range and bearing of other modules. The modules may be diver...
5062088 Acoustic measuring system  
Apparatus for sensing distances between two objects by using multiple pulses from the detector and from the object to be detected by using a transmitter and not using any reflected waves the...
5047990 Underwater acoustic data acquisition system  
An acoustic data acquisition system for shipboard use is disclosed that allows for underwater acoustic data measurements at preselected submerged marine structural coordinates using a free...
5008860 Position and velocity measuring system  
A position and velocity determining system, that uses two functioned receiver-transmitters. In performing a first function, each receiver-transmitter transmits an acoustic pulse at a unique...
4924446 Navigation system and method for determining the position of a relatively noisy platform using underwater transponders  
A system for acoustically positioning a noisy platform. An array of transponders, adapted to be deployed in a region of water, is provided. A transducer is mounted on the noisy platform and...
4870626 Method for determining the position of a marine seismic receiver cable  
A method for determining the position of a marine seismic receiver cable of the type which is towed behind a seismic survey vessel through the sea, wherein the azimuth and the distance from the...
4813025 Safety alert and locating system  
A system for monitoring the safety and location of individuals includes a portable transceiver worn by each individual and a base control unit for sending interrogation signals to the individual...
4799825 Oil transfer system  
An underwater fuel transfer system for the transfer of liquid fuels such as crude oil from an off-shore underwater mooring to a submerged submarine oil tanker. There is provided a berthing...
4725988 System for deploying an array of sonar projectors  
A system for deploying an array of sonar projector transducers includes a housing in which a plurality of disk shaped projectors are stacked, a pair of small diameter cables are reeled from a...
4669067 Method and apparatus for locating a submerged marine streamer  
A method is disclosed for locating the position of a marine streamer using two boats and a series of transponders in the streamer. A first pulse is electrically triggered and then generated by the...
4635236 Submerged marine streamer locator  
Method and means are provided for determining the position of a submerged marine streamer towed behind an exploration vessel. An array of sets of at least three transponders secured to the ocean...
4621262 Method of and a system for remote control of electronic equipments  
A method of and a system for remote control of individual electronic equipments which are spread out across a large geographical area. Particularly activation of radio transmitters spread over the...
4590591 Acoustic distance measuring apparatus and method of use  
Acoustic distance measuring apparatus for measuring the distance of a vessel (N) from a vertical line through a fixed point (P) on the bottom of a body of water, the apparatus comprising: an...
4532617 System for locating a towed marine object  
A system and method for determining the position of towed marine object relative to a towing vessel. The system comprises a towing vessel, a slave vessel, and the towed object. An acoustic...
4516226 Acoustic positioning system  
Acoustic positioning device for a vessel comprising N transponders (B1 . . . Bi . . . BN).A fixed acoustic transmitting means (E) periodically transmits acoustic pulses at frequency f. The...
4513401 Marine cable location system  
An acoustic positioning system for locating a marine cable at an exploration site employs a plurality of acoustic transponders, each having a characteristic frequency, at spaced-apart positions...
4486861 Transponder telemetry  
Acoustic transponders are attached to sections of a submarine cable for use in accurately locating the cable during deployment or retrieval. An acoustic signal at one frequency, transmitted from...
4388710 Submarine cable tension telemetering system  
Apparatus for monitoring cable tension during submarine laying operations is housed in a separable case suitable for nondestructive attachment around the circumference of a cable at any desired...
4376301 Seismic streamer locator  
Method and means are provided for determining the position of a submerged marine streamer towed behind an exploration vessel. A sonic ring around feedback system is employed to redundantly...
4311045 Device for measuring sea currents at great depths  
A device for measuring sea currents at great depths as a function of the depth.A spherical shaped plunger having negative floatability is dropped from a boat and descends to the bottom of the sea,...
4308749 Device for measuring in real time sea currents in deep water  
A device for measuring in real time sea currents in deep water possibly exceeding 6000 m, as a function of the depth.A spherical shaped plunger having negative floatability is dropped from a boat...
4247922 Object position and condition detection system  
A lift truck (16) carries a leftwardly directed ultrasonic receiver (32L) and a rightwardly directed ultrasonic receiver (32R) and an RF transmitter (34). Upon depositing its load in an assigned...
4229809 Acoustic under sea position measurement system  
The invention concerns acoustic under-water measurement apparatus for determining the location with respect to a surface vessel of objects such as submersible vessels, pipe-riders, mining...
4203160 Submarine communication  
2. A method by which a submarine while deeply submerged in the sea may receive a message from a remote station without disclosing to others the position of the submarine, which comprises...
4197591 Facsimile recording of sonic values of the ocean bottom  
1. A towable spread for surveying a water-submerged surface with a single towing vessel comprising at least two laterally spaced submarine vehicles of which at least one is dirigible, tow cables...
4176338 High resolution acoustic navigation system  
A high resolution underwater acoustic navigation system is provided by a combined pulse and continuous-wave or Doppler system. Locations of the object being tracked are periodically determined by...
4119941 Acoustic coupler  
An acoustic coupler is provided for extending the listening and signal garing capabilities of an existing cable connected hydrophone system. The acoustic coupler includes a sensor, such as an...
4114135 Acoustic device  
A system for monitoring air-water borne noise generated by an aircraft flg over a body of water from within the aircraft includes a sonobuoy having a phase linear array of hydrophones suspended...
4110873 Coupling  
A releasable coupling comprises a female component providing an open ended sleeve and a male component having a projection for insertion into this sleeve, said projection comprising an enlarged...

Matches 1 - 50 out of 100 1 2 >