| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 367002000 | TRANSPONDERS | 23 |
| 20090073802 | IMPLANTABLE MINIATURE TRANSPONDER AND METHOD FOR THE PRODUCTION THEREOF - The invention relates to a method of assembling an implantable miniature transponder ( | 03-19-2009 |
| 20110013480 | COMMUNICATION DEVICE AND COMMUNICATION METHOD - A communication device includes: an ultrasonic oscillating unit which detects or generates an ultrasonic wave; a communication unit which transmits and receives information using the ultrasonic wave; a storage unit which stores a table to which a communication command to designate communication with the another communication device is allocated in time series, the table being shared by the another communication device; and a control unit which shifts the communication unit to one of a transmitting state, a receiving state, and a standby state that is neither the transmitting nor the receiving state, synchronously with the another communication device on the basis of the communication command in the table. | 01-20-2011 |
| 20120020183 | SURFACE ACOUSTIC WAVE RESONATOR FOR DOWN-HOLE APPLICATIONS - A method and apparatus for packaging a Surface Acoustic Wave (SAW) piezoelectric device into a SAW tagging device for use in a harsh environment is provided. An exemplary SAW tagging device comprises a SAW piezoelectric device within a header container. The header container is electrically connected to an antenna system that comprises an antenna substrate, a dielectric disk that may operate as an antenna reflector in combination with a metal base. The antenna system, antenna substrate, dielectric disk and header container are all contained within a cavity in the metal base. The SAW tagging device is completely encased in a chemical, temperature and environmentally resistive and durable material that is transparent to the operating radio frequency of the SAW piezoelectric device contained therein. A grooved sleeve or ring is provided about the SAW tagging device and is compressible or crushable such that the SAW tagging device can be compression fitted into a borehole in an asset or object in need of being tagged. | 01-26-2012 |
| 20120188844 | ACOUSTIC REFLECTORS - An acoustic reflector comprises a shell surrounding a solid joint free core, said shell being capable of transmitting acoustic waves incident on the surface of the shell into the core to be focused and reflected from an area of the shell located opposite to the area of incidence so as to provide a reflected acoustic signal output from the reflector. The ratio of the speed of sound wave transmission in the shell to the average speed of the wave transmission in the core is preferably in the range of 2.74 to 3.4, inclusive or a multiple thereof with best result in the range of 2.74 to 2.86 inclusive. | 07-26-2012 |
| 20120206996 | TRANSPONDER HAVING COUPLED RESONANT MODES AND INCLUDING A VARIABLE LOAD - A transponder including a first resonator and a series of one or more second resonators with coupling of evanescent waves exhibiting at least one first resonant mode and one second resonant mode, said first resonator being connected via a first port, to a first means allowing an interrogation, wherein said second resonators are connected via at least one second port, to at least one variable load element capable of modifying coupling conditions of the resonant modes and consequently a response measured on said first port. | 08-16-2012 |
| 20120294112 | SYSTEM FOR MEASURING A TIME OFFSET AND METHOD OF MEASURING A TIME OFFSET - A system and method measures the time offsets of a plurality of acoustic sensor nodes relative to a reference time. The system includes an acoustic transceiver arranged to transmit a first signal to each acoustic sensor node and a processing resource arranged to record the transmission time of the first signal relative to the reference time. The acoustic sensor nodes receive the first signal and transmit a return second signal to the acoustic transceiver after a predetermined time delay, the second signal including the current acoustic sensor node internal time. The acoustic transceiver receives the second signal, and the processing resource records the time at which the second signal was received relative to the reference time and records also the combined time of flight of the first and second signal. From this data the time offset between the sensor node internal time and the reference time is calculated. | 11-22-2012 |
| 20140160880 | ULTRASOUND RANGING FOR MOBILE DEVICES - Ultrasonic ranging for mobile devices is disclosed. A mobile device using ultrasonic ranging can include an ultrasound transmitter capable of emitting an ultrasound signal for detection by a proximate device and an ultrasound receiver capable of receiving an ultrasound signal from the proximate device. The mobile device can then use a time lapse associated with one or both of these ultrasound signals to find a range to the proximate device. | 06-12-2014 |
| 20150131408 | LASER-INDUCED ULTRASOUND GENERATOR AND METHOD OF MANUFACTURING THE SAME - Provided are a laser-induced ultrasound generator and a method of manufacturing the laser-induced ultrasound generator. The laser-induced ultrasound generator includes: a substrate including a plurality of nanostructures provided on a first surface of the substrate; and a thermoelastic layer provided on the first surface of the substrate, the thermoelastic layer being configured to generate an ultrasound by absorbing a laser beam incident onto a second surface of the substrate, the second surface facing the first surface. The nanostructures may be cylinder-shaped nano-pillars. | 05-14-2015 |
| 367003000 | Sonobuoys and sonobuoy systems | 13 |
| 20080239869 | System and Method for Determining Directional and Non-directional Fluid Wave and Current Measurements - A system for determining the directional properties of surface waves or internal waves of a fluid medium includes a sonar system having a plurality of transducers for generating respective, separate acoustic beams and receiving echoes from one or more range cells located substantially within the beams; and a computer program for determining the directional properties associated with the surface waves or internal waves from the received echoes, wherein the computer program determines along-beam velocities along the separate acoustic beams and combines the along-beam velocities to form an equivalent orbital velocity vector. The system is mounted on or in a sub surface buoy that can move or rotate during measurement and includes a motion sensor measuring six degrees of freedom to account for horizontal velocity and vertical displacement in the subsurface buoy mounted sonar system. | 10-02-2008 |
| 20100110828 | RECEPTION OF UPLINK DATA FROM SONOBUOYS - A method for improving the bit error rate in digital transmissions of sonobuoy sensor data from a sonobuoy to a receiver platform includes computing a send checksum on a frame of sonobuoy sensor data, copying the frame of data and checksum into a plurality of subframes, delaying one of the plurality of subframes for a predetermined period, multiplexing the delayed subframe with the plurality of subframes into a transmit frame; and transmitting the transmit frame. The invention is particularly suited to improving the reception of legacy sonobuoy receivers in littoral waters where radio frequency interference and signal propagation is a severe problem. | 05-06-2010 |
| 20110149679 | METHOD AND DEVICES FOR UNDERWATER DEPLOYMENT OF A STRUCTURE - Described herein are methods and devices for underwater deployment of a structure. For example, the embodiments described herein are particularly focused on sonobuoys that are configured for autonomous deployment in an underwater environment. One embodiment provides a sonobuoy having a plurality of arms, which are in some embodiments telescopic. The sonobuoy is configured such that, upon deployment in an underwater environment, the arms extend and rotate from a collapsed storage configuration to an operative configuration. The rotation is brought about by way of tension in petal lines, which extend between an innermost telescopic segment of each arm and a central tether line intermediate the arms and a buoyancy device. | 06-23-2011 |
| 20120063262 | SELF-PROPELLED BUOY FOR MONITORING UNDERWATER OBJECTS - Various embodiments of the invention provide a buoy and system for monitoring divers and other underwater objects. In many embodiments, the buoy has capabilities to monitor a diver, obtain position information about the diver and use that information to move itself to an effective range for continued monitoring. The buoy can connect and communicate with a communication device attached to a diver to communicate, position, biometric and other data. In one embodiment, the buoy comprises a propulsion system for propelling the buoy, an acoustic communication module for communicating with the diver and a propulsion controller for controlling the propulsion system to move to the effective range. Other embodiments provide a power generation system using a power generating buoy comprising an inertial weight, an energy converter and a connecting linkage. The system may comprise a single or multiple buoys and can include an electrical storage such as an electrical battery. | 03-15-2012 |
| 20150085602 | SYSTEM AND METHOD FOR FINDING FISH USING A SONAR DEVICE AND A REMOTE COMPUTING SYSTEM - The present invention generally relates to a sonar fish finding system. Specifically, this invention relates to a sonar device which attaches to a fishing line and floats on the water like a fishing bubble, float, or bobber. The sonar device pairs with a wireless computing device over a Bluetooth Smart (also known as Bluetooth Low Energy) connection to provide information to a fisherman about what is under the surface of the water. In some embodiments, processing may be done on subsets of sonar data samples in order to allow for processing a complete result without requiring storage of the entire set of data samples at once. In certain embodiments of the present invention, the sonar device sends data to a remote computing system either directly or indirectly through a wireless computing device. The remote computing system also sends the wireless computing device information about both real-time fishing hotspots, and fishing hotspots predicted based on historical data and current conditions. | 03-26-2015 |
| 20150293213 | EFFICIENT, HIGH-POWER MECHANICAL TRANSDUCERS FOR ACOUSTIC WAVES IN DENSE MEDIA - Mechanical transducers efficiently produce and couple high-power acoustic pulses into liquid and solid media. In a transmitter, mechanical excitation of a thin transmitting plate is provided by an actuator or a motor that causes a mass to strike or a drive rod to push the thin plate. If struck, as the thin plate rings down, it delivers much of its kinetic energy to acoustic radiation in the dense medium. Different mechanisms may be used to excite the plate, and different mechanisms may be used to couple the plate excitations into dense media. Conditions are found for efficient transduction of mechanical energy by a thin plate into acoustic radiation in solid and liquid media. A receiver comprises a plate having matching resonances to the transmitting plate. Discrete narrowband frequencies of acoustic signals are used to detect phase changes in waves reflected from a moving object. By interfering successive return pulses, small changes in phase and amplitude within the reflected beam lead to large changes in interfering voltage waveforms. | 10-15-2015 |
| 367004000 | With component activating or deployment means | 2 |
| 20090279383 | Autonomous Data Relay Buoy - An easily deployable data relay buoy, in some embodiments, has a diesel powered alternator and storage battery, providing long service life. The data relay buoy has mechanical characteristics that allow it to maintain antenna stability in the presence of seas states from at least zero through four and to survive in sea states up to sea state six. | 11-12-2009 |
| 20130128689 | COMMUNICATION DEVICE AND METHOD FOR SENSING AND TRANSMITTING DATA FOR MILITARY SENSORS - A sonobuoy that includes a communications device capable of being communicatively coupled to a computer network. Also disclosed is a network of communications devices placed on sonobuoys. The communications device is capable of several forms of RF transmission. The communications devices are also provided with processors capable of performing signal processing or a portion of signal processing before communicating data to a larger computer for further processing. | 05-23-2013 |
| 367005000 | With plurality of sonobuoys | 5 |
| 20090201763 | Airborne Laser-Acoustic Mine Detection System - A system and method is provided for using acoustical pulses generated from an airborne laser source to locate objects under water. An array of acoustic sensors, such as passive sonobuoys at the ocean surface, is deployed in known or determinable locations by aircraft. Each area surrounded by acoustic sensors comprises a search cell, within which sonar scattering data can be used to locate objects. Following sonobuoy deployment, the aircraft uses the laser to rapidly generate many laser-acoustic pulse sources within each search cell, which in turn generate spherical acoustic pulses traveling through the water. The acoustic sensors receive the acoustic pulses, either on a direct path or on a scattered path after the pulse strikes an underwater object. The sensors record the acoustic signatures of the received pulses and transmit data of the recorded acoustic pulses to a processor such as processor on a nearby ship. The processor transforms the data of the acoustic signatures, together with data of the known locations of the acoustic sensors and the locations of the laser-acoustic pulse sources, into data of a location of the underwater objects. | 08-13-2009 |
| 20090262600 | METHODS AND APPARATUS FOR SURVEILLANCE SONAR SYSTEMS - Methods and apparatus to provide sonobuoys that can be deployed on a sea bottom and surface upon detection of an object of interest. Upon reaching the surface, the sonobuoy can transmit information, such as position information, to a receiver on an aircraft, satellite, and/or remote location. | 10-22-2009 |
| 20090316522 | COMMUNICATION SYSTEM, INFORMATION COLLECTING METHOD AND BASE STATION APPARATUS - A communication system for obtaining predetermined information from an underwater terminal via a sonobuoy is provided. The system includes an underwater terminal for transmitting and receiving sound wave signals, a base station apparatus for transmitting and receiving radio wave signals, and a plurality of sonobuoys for transmitting and receiving the sound wave signals to and from the underwater terminal, and for transmitting and receiving the radio wave signals to and from the base station apparatus. | 12-24-2009 |
| 20100246321 | BALLISTIC-ACOUSTIC TRANSDUCER SYSTEM - A ballistic-acoustic transducer system includes a processor and one or more acoustic sensors. The sensors are positioned in a body of water and are in communication with the processor. The system is configured such that acoustic energy generated by a non-explosive projectile as it impacts the water, enters the water, and sinks through the water, is sensed by the one or more acoustic sensors, and the processor is configured to process the acoustic energy sensed by the one or more acoustic sensors. | 09-30-2010 |
| 20150344109 | CONTROLLABLE BUOYS AND NETWORKED BUOY SYSTEMS - Buoyant sensor networks are described, comprising floating buoys with sensors and energy harvesting capabilities. The buoys can control their buoyancy and motion, and can organize communication in a distributed fashion. Some buoys may have tethered underwater vehicles with a smart spooling system that allows the vehicles to dive deep underwater while remaining in communication and connection with the buoys. | 12-03-2015 |
| 367006000 | With plurality of transponders | 2 |
| 20130070556 | Aircraft Location System for Locating Aircraft in Water Environments - A method and apparatus for an aircraft location system comprising an aircraft structure and a number of acoustic reflectors associated with the aircraft structure. The number of acoustic reflectors is configured to generate first sound signals in response to receiving second sound signals. | 03-21-2013 |
| 20140269161 | ACOUSTIC REFLECTORS - An underwater location detection system comprising a number of acoustic reflectors at the location, wherein the acoustic reflectors emit acoustic signals in response to receiving an incoming acoustic signal. The frequency of the acoustic signal emitted by each of the acoustic reflectors is different from one another. | 09-18-2014 |
