Matches 1 - 50 out of 123 1 2 3 >


Match Document Document Title
US20120082006 SELF CALIBRATING SHOOTER ESTIMATION  
Disclosed are systems and methods that can be used to detect shooters. The systems and methods described herein use arrival times of a shockwave, produced by a shot, at a plurality of sensors to...
US20120307595 SYSTEMS AND METHODS FOR DISAMBIGUATING SHOOTER LOCATIONS WITH SHOCKWAVE-ONLY LOCATION  
The systems and methods described herein relate to an airborne shooter detection system having a plurality of sensors coupled to the body of an aircraft such as a helicopter. The sensors are...
US20110071751 SYSTEMS AND METHOD FOR DETERMINING PROPELLANT MASS AND CENTER OF GRAVITY FOR A SPACE-BASED ASSET  
A system for determining a propellant content and a center of gravity in a three-axis stabilized spacecraft includes a ranging device that is coupled to an interior of a propellant tank of the...
US20090073811 ACOUSTIC NAVIGATION DEVICE AND METHOD OF DETECTING MOVEMENT OF A NAVIGATION DEVICE  
A navigation device for navigating a user interface of a processor-controlled device includes an acoustic transmitter adapted to transmit an acoustic signal, an acoustic receiver adapted to...
US20110228640 Torsional Ultrasonic Wave Based Level Measurement System  
A level measurement system suitable for use in a high temperature and pressure environment to measure the level of coolant fluid within the environment, the system including a volume of coolant...
US20130188456 LOCALIZATION USING MODULATED AMBIENT SOUNDS  
Systems and methods for determining the location of a microphone by using sounds played from loudspeakers at known locations. Systems and methods may thereby require a minimal level of...
US20140112104 ULTRASONIC LOCATIONING USING ONLY TIME DIFFERENCE OF ARRIVAL MEASUREMENTS  
A method and system for ultrasonic locationing using time difference of arrival measurements includes an ultrasonic receiver including three microphones each disposed on a periphery of a housing...
US20140204716 SELF-LOCALIZATION FOR A SET OF MICROPHONES  
Provided are methods and systems for finding the location of sensors (e.g., microphones) with unknown internal delays based on a set of events (e.g., acoustic events) with unknown event time. A...
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...
US20100223019 Measuring Filling Level by Means of Evaluating an Echo Curve  
A method for filling level measuring comprises generating an echo curve and analysing the echo curve by means of an analysis method. The analysis method is at least one analysis method selected...
US20110149690 OBSTACLE DETECTION DEVICE  
An obstacle detection device mountable on a surface of a movable body includes a transmitting portion for transmitting a transmitting wave, a receiving portion for receiving a reflected wave from...
US20120002507 METHOD FOR DETERMINING DIFFERENCE IN DISTANCE  
The invention consists of a method which comprises a plurality of steps for determining difference in distance from a reference point to at least two sensor modules 10, 20 that are located under...
US20080151692 Low Cost Acoustic Responder Location System  
A location system including a base station (120, 200) and a responder tag (140, 250) that communicate using an acoustic signal to determine the location of the tag in a bounded 3D space (100). The...
US20080008043 Method for determining a position of an object  
A method for determining a mutual distance between two objects in a pipeline. The method includes the steps of: providing a pipeline which is filled with a medium having an acoustic impedance...
US20140036627 LOUDNESS BASED METHOD AND SYSTEM FOR DETERMINING RELATIVE LOCATION OF AN ACOUSTIC EVENT ALONG A CHANNEL  
A method for determining relative location of an acoustic event along a channel such as a wellbore includes obtaining two acoustic signals at are obtained at two different and known depths in the...
US20140204715 ACOUSTIC POSITIONING SYSTEM AND METHOD  
An acoustic positioning device includes an acoustic emitter and receiver. The device emits a sequence of at least one first acoustic signal (S1) and one second acoustic signal (S2), separated by a...
US20120243376 SYSTEM AND METHOD FOR THE CONTINUOUS DETECTION OF IMPACTS ON PIPELINES FOR THE TRANSPORTATION OF FLUIDS, PARTICULARLY SUITABLE FOR UNDERWATER PIPELINES  
A system and method for continuous detection of impacts on pipelines for fluid transportation, particularly on pipelines placed on the seabed. The system includes at least two sensors each...
US20130128700 Method for Global Acoustic Positioning of a Marine or Submarine Target  
A method for the global acoustic positioning of the USBL or SBL type of a marine or submarine target is more accurate than the method used by known USBL or SBL systems, while applying a network of...
US20130317669 Acoustic Ranging System Using Atmospheric Dispersion  
A method and apparatus for processing sound from a sound source. The sound from the sound source is detected. Harmonics in the sound from the sound source are identified. A distance to the sound...
US20120170413 HIGHLY PORTABLE SYSTEM FOR ACOUSTIC EVENT DETECTION  
A man wearable acoustic sensor for use with a gunshot detection system. In a preferred embodiment the inventive sensor includes: a housing configured to be man wearable, a microphone; a processor...
US20090207694 ULTRASONIC IN-BUILDING POSITIONING SYSTEM BASED ON PHASE DIFFERENCE ARRAY WITH RANGING  
A method for determining position of a mobile electronic device includes emitting an acoustic pulse from the position of the mobile electronic device. The acoustic pulse is detected at a known...
US20100195444 LOUDSPEAKER POSITION ESTIMATION  
The invention relates to an automated estimation of the position (co-ordinates) of a set of loudspeakers in a room Based on measured impulse responses the distances between each pair of...
US20140313858 ULTRASONIC LOCATION DETERMINATION  
The relative positions of two or more electronic devices can be determined utilizing ultrasonic beacons. Each device can have a unique signature that can be included in the beacon broadcast by...
US20120147706 METHOD FOR MEASURING SEA WAVES BY MEANS OF ULTRASONIC WAVES, AS WELL AS SEA WAVE MEASURING SYSTEM  
A method for measuring sea waves includes: transmitting ultrasonic waves from an ultrasonic transmitter 2 provided on a buoy 1 into the sea, and receiving the ultrasonic waves from three...
US20080128178 Ultrasonic Tracking  
In one embodiment, a tracking module (110) to select a plurality of pairs of digital ultrasonic signals to form two or more pairs of digital ultrasonic signals and estimate time difference of...
US20150151208 INTERACTIVE TURRET ROBOT  
One embodiment provides an apparatus that includes a plurality of wheels configured to rotate in either of two rotational directions about an axis of rotation. The apparatus further includes a...
US20100061186 METHOD FOR LOCALIZING REMOTE DEVICES, USING ACOUSTICAL AND ELECTROMAGNETIC WAVES  
Localization of remote devices by: the emission of pulses from acoustic transmitters, whose wavefronts propagate in the space region occupied by the remote devices and finally reach them; the...
US20120063270 Methods and Apparatus for Event Detection and Localization Using a Plurality of Smartphones  
An event detection and localization system is provided that employs a plurality of smartphones. The detected events may comprise a gunshot, a biological threat, a chemical threat and/or a...
US20120300587 GUNSHOT LOCATING SYSTEM AND METHOD  
A system for determining the origin and trajectory of a gunshot includes spaced sensor nodes and a base station. A method for determining the origin and trajectory of a gunshot includes the steps...
US20080304361 Acoustic Ranging  
Acoustic ranging may involve determining a distance between a first device and at least one other device using one or more acoustic signals. In an example embodiment, a first device emits a first...
US20080084789 Acoustic Robust Synchronization Signaling for Acoustic Positioning System  
A position detection system comprising positional element and positioning device, wherein the positional element transmits a continuously modulated acoustic waveform and a synchronization signal...
US20090262604 LOCALIZATION SYSTEM, ROBOT, LOCALIZATION METHOD, AND SOUND SOURCE LOCALIZATION PROGRAM  
To measure an accurate positional relationship between an ultrasonic tag and a microphone and identify a sound source position, even if an object is present between the ultrasonic tag and the...
US20090279582 Temperature Sensor and Extensometer for Electrical Power Cables  
A thermometer and extensometer for cables and conductors is described. The travel time of one or more acoustic signals along a conductor is used to determine the temperature along the conductor...
US20100118658 ACOUSTIC LOCATION OF GUNSHOTS USING COMBINED ANGLE OF ARRIVAL AND TIME OF ARRIVAL MEASUREMENTS  
A gunshot location system computes candidate gunshot locations from angle-of-arrival information and time-of-arrival information provided by acoustic sensors. In addition to an angle, each sensor...
US20120092963 PROJECTILE FOR FOCUSING A KINETIC PULSE ARRAY  
The present disclosure relates to a method and system for finding and physically altering underground targets. Multiple projectiles are dispersed into the ground and determine their spatial...
US20130033965 Apparatus and Method to Locate and Track a Person in a Room with Audio Information  
An apparatus is described that can monitor the sounds and voices of infants and children in a house by judicially placing nodes in key locations of the home. The network has intelligence and uses...
US20140293748 MAGNETIC SYNCHRONIZATION FOR A POSITIONING SYSTEM  
A synchronization system for an acoustic signal-based positioning system is provided that generates a magnetic field as a synchronization signal. The magnetic synchronization signal is transmitted...
US20090103396 Information Input Apparatus Using Ultrasonic Waves and Position Recognition Method Thereof  
The present invention relates to an input apparatus, and more particularly, to an information input apparatus and position recognition apparatus using an ultrasonic wave. The information input...
US20110026363 WIRELESS POSITION SENSING IN THREE DIMENSIONS USING ULTRASOUND  
The present invention provides a method of position sensing between a wireless mobile component carrying a mobile ultrasonic transducer and a fixed component carrying a plurality of fixed...
US20120026837 SOUND DIRECTION DETECTION  
In accordance with some embodiments of the present disclosure, a process for determining a direction vector of a sound source is described. The process may be implemented to detect, by a first...
US20080259732 MOBILE OBJECT COMMUNICATION AND POSITION DETERMINATION  
An ultrasound position determination system includes a base unit and at least one mobile unit. Each of the mobile and base units are operable to transmit and receive ultrasonic signals. The mobile...
US20150168538 MOBILE DEVICE INDOOR NAVIGATION  
Mobile device positioning employs various forms of audio signal structures and detection methodologies. In one method, detection of an audio signal from a first source enables construction of a...
US20120294119 DEVICE FOR DETECTING ACOUSTIC WAVES AND A SYSTEM FOR LOCATING A SOURCE OF ACOUSTIC WAVES  
An acoustic wave detection device including a piezoelectric transducer configured to provide a detection signal; an acoustic resonator having a resonance frequency and including a resonating body...
US20100182875 DISTANCE MEASUREMENT FOR BUILDING AUTOMATION DEVICES WITH WIRELESS DATA COMMUNICATIONS  
In a building environment, a distance associated with a building automation device is determined as a function of an interval or an inserted time delay between a wireless transmission of a signal...
US20120182837 Systems and methods of locating weapon fire incidents using measurements/data from acoustic, optical, seismic, and/or other sensors  
Systems and methods are disclosed for locating a weapon fire incident such as an acoustic transient from a gunshot, explosion, weapons launch, etc. In one exemplary implementation, there is...
US20060083110 Ambient bistatic echo ranging system and method  
A system and associated method for ranging an underwater target of interest using ambient acoustic energy from an acoustic source. The system includes a hydrophone; a correlator for correlating...
US20100135119 METHOD, APPARATUS OR SOFTWARE FOR DETERMINING THE LOCATION OF AN ACOUSTIC EMISSION EMITTER IN A STRUCTURE  
A method, apparatus and software is disclosed in which the location of the origin of a received acoustic emission in a structure is calculated by triangulating the times of flight of the acoustic...
US20120044786 ACOUSTIC POSITION-DETERMINATION SYSTEM  
The position of a mobile unit (12) within a detection zone is determined. An acoustic signal is emitted from the mobile unit and received along a first path (54). An echo of the signal is received...
US20120275273 ACOUSTIC SURVEY METHODS IN WEAPONS LOCATION SYSTEMS  
A survey method giving improvements in weapons fire location systems is disclosed. In an urban system with a distributed array in the midst of many buildings that block signal paths or create...
US20100315905 MULTIMODAL OBJECT LOCALIZATION  
Various embodiments of the present invention are directed to systems and methods for multimodal object localization using one or more depth sensors and two or more microphones. In one aspect, a...

Matches 1 - 50 out of 123 1 2 3 >