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| Number | Title | Issue Date |
| 8189430 | Electronic apparatus operable by external sound An apparatus includes sound sensors for converting sounds into electric signals. An angular position of a sound source of a first sound wave as seen from the apparatus is determined on the basis of moments of arrival of the first sound wave at the respective sound s... | 05/29/2012 |
| 8174932 | 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 method comprises capturing three-dimensional images of a region of space... | 05/08/2012 |
| 8159902 | Apparatus and method for localizing sound source in robot An apparatus and method for localizing a sound source in a robot are provided. The apparatus includes a microphone unit implemented by one or more microphones, which picks up a sound from a three-dimensional space. The apparatus also includes a sound source localize... | 04/17/2012 |
| 8154954 | 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 orientation using seismic waves, and then operate as an array to locate and ... | 04/10/2012 |
| 8149649 | 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 assign weights to each of the plurality of sensors, and determine a sho... | 04/03/2012 |
| 8144545 | 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 receive the acoustic signal and located at a fixed position with respect to ... | 03/27/2012 |
| 8134889 | Systems and methods for augmenting gunshot location using echo processing features Systems and methods are disclosed for processing weapon fire information such as gunfire. In one exemplary implementation, there is provided a method of processing gunshot information to determine source location information involving echo/reflection processing feat... | 03/13/2012 |
| 8134888 | Method and apparatus of location tracking Disclosed are an apparatus and a method of location tracking. The location tracking apparatus may calculate a location of an object using an ultrasound. In this instance, an intensity of the used ultrasound may be determined based on a distance to the object, thereb... | 03/13/2012 |
| 8111583 | Method and apparatus for determining and indicating direction and type of sound A method and apparatus for determining the direction of a sound source is disclosed. The method includes determining time differences of arrival of the sound at N locations and using the differences to determine the angular direction of the source. The apparatus ind... | 02/07/2012 |
| 8036064 | 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 and wireless reception of another signal. For example, a two-way commu... | 10/11/2011 |
| 7969820 | 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 unit is adapted to transmit a predetermined signal in dependence upon... | 06/28/2011 |
| 7961550 | Systems and methods of processing impulses including bullet pulses and/or muzzle pulses in association with time domain representations Systems and method are disclosed for processing signals. In one exemplary implementation, a method may include transforming initial bullet data associated with one or more sensors into a set of discrete pulses, dividing the discrete pulses into pulse subsets, genera... | 06/14/2011 |
| 7948829 | Locator system and method including node and target acquisition The present disclosure relates to a method and system for finding and physically altering underground targets. Multiple nodes are dispersed into the ground and determine their spatial orientation using seismic waves, and then operate as an array to locate and proper... | 05/24/2011 |
| 7826310 | 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 receive the acoustic signal and located at a fixed position with respect to ... | 11/02/2010 |
| 7813223 | System and method for focusing a kinetic pulse array The present disclosure relates to a method and system for finding and physically altering underground targets. Multiple nodes are dispersed into the ground and determine their spatial orientation using seismic waves, and then operate as an array to locate and proper... | 10/12/2010 |
| 7804741 | System and method for focusing a kinetic pulse array The present disclosure relates to a method and system for finding and physically altering underground targets. Multiple nodes are dispersed into the ground and determine their spatial orientation using seismic waves, and then operate as an array to locate and proper... | 09/28/2010 |
| 7796470 | Acoustic detection of weapons near transportation centers Systems and methods are disclosed for determining location of a weapon firing incident. In one exemplary embodiment, there is provided a system for determining the location of a weapon firing incident in proximate position to a region traversed by vehicles. The syst... | 09/14/2010 |
| 7729204 | 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 acoustic signal and then receives the first acoustic signal at a first... | 06/01/2010 |
| 7710828 | Systems and methods for determining shooter locations with weak muzzle detection Systems and methods for locating the shooter of supersonic projectiles are described. The system uses at least five, preferably seven, spaced acoustic sensors. Sensor signals are detected for shockwaves and muzzle blast, wherein muzzle blast detection can be either ... | 05/04/2010 |
| 7710827 | Methods and systems for conducting near-field source tracking Methods and systems are provided herein for signal source tracking. A signal emitted over time from a moving source is a collection of small sub-signals that were emitted by the source at different positions along its path. If the source is traveling at a slower spe... | 05/04/2010 |
| 7675820 | Method of characterizing a vehicle crash event based on shear waves in the vehicle frame A vehicle crash event is detected and characterized based on the transmission of acoustical shear waves through the vehicle frame. At least three, and preferably four or more, acoustical emission sensors longitudinally and laterally distributed on the vehicle frame ... | 03/09/2010 |
| 7668046 | Apparatus and method for determining the position of an object in 3-dimensional space An apparatus and method is disclosed for determining the position of a user interface mouse using time of arrival measurements. A transmitter transmits a signal to an array of receivers that are spatially separated from one another. The time difference of arrival fo... | 02/23/2010 |
| 7623413 | 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 and wireless reception of another signal. For example, a two-way commu... | 11/24/2009 |
| 7599252 | Acoustic location of gunshots using combined angle of arrival and time of arrival measurements A gunshot location system computes candidate gunshot locations [314] from angle-of-arrival information [304, 308] and time-of-arrival information [312] provided by acoustic sensors [300, 302]. In addition to an angle, each sensor calculat... | 10/06/2009 |
| 7586812 | Systems and methods of identifying/locating weapon fire including return fire, targeting, laser sighting, and/or guided weapon features A system and method for detecting, identifying, and fixing the location of the source of an acoustic event. The inventive system includes: a plurality of sensors dispersed at somewhat regular intervals throughout a monitored area; a communication network adapted to ... | 09/08/2009 |
| 7558156 | Acoustic location and enhancement A method of locating an acoustic source, the method comprising sampling said acoustic source at a plurality of acoustic receivers having different locations, each acoustic receiver time-stamping a respective received acoustic sample using a system time, each acousti... | 07/07/2009 |
| 7532542 | System and method for improving the efficiency of an acoustic sensor The present invention provides a system for identifying and locating an acoustic event. In a preferred embodiment a gunshot detection sensor includes an audio sensor which detects gunshots in combination with a GPS engine which provides location and timing in conjun... | 05/12/2009 |
| 7515506 | Determination of time-difference of arrival and angle of arrival The delay between two signals is determined by obtaining zero crossings from each signal, and using each crossing to trigger the sampling of the other signal. Two samples are taken in response to each zero crossing, and the difference between those two samples is ca... | 04/07/2009 |
| 7512036 | Underwater acoustic positioning system and method A method for determining the position of an underwater device includes placement of a plurality of station keeping devices on or below the surface of the water in known positions. A device to locate is provided for placement below the surface of the water, and the d... | 03/31/2009 |
| 7495998 | Biomimetic acoustic detection and localization system An acoustic detection and localization system includes a signal acquisition stage, a biomimetic processor, and an acoustic feature processor. The system uses multiple acoustic cues including spectral content, inter-aural time delay (ITD), inter-aural intensity diffe... | 02/24/2009 |
| 7474589 | Acoustic location of gunshots using combined angle of arrival and time of arrival measurements A gunshot location system computes candidate gunshot locations [314] from angle-of-arrival information [304, 308] and time-of-arrival information [312] provided by acoustic sensors [300, 302]. In addition to an angle, each sensor calculat... | 01/06/2009 |
| 7453771 | Apparatus and method for reducing noise for moveable target A noise control system is provided for controlling a noise level around a moveable target. The noise control system has a detecting system configured to detect a location and movement of the target, and a noise cancellation system. The noise cancellation system has ... | 11/18/2008 |
| 7433266 | Acoustic source localization system and applications of the same A system for locating an acoustic source from an acoustic event of the acoustic source. In one embodiment, the system includes a sensor network having a plurality of spatially separated sensor nodes each located in a predetermined position encountering acoustic wave... | 10/07/2008 |
| 7411865 | System and method for archiving data from a sensor array A system and method for archiving and retrieving information from an array of remote sensors. In a preferred embodiment the invention is incorporated in a gunshot detection and location system to preserve audio information surrounding a gunshot event for later revie... | 08/12/2008 |
| 7408839 | Distance measurement for wireless building automation devices In a building environment, a distance associated with a building automation device is determined as a function of an inserted time delay between a wireless transmission of a signal and wireless reception of another signal. For example, a two-way communication is pro... | 08/05/2008 |
| 7408840 | System and method for disambiguating shooter locations Systems and methods for determining and disambiguating the location of the shooter of supersonic projectiles based on shockwave-only signals are described. Using several spaced sensors, an initial portion of the shockwave-only signals is sensed to determine Time-Dif... | 08/05/2008 |
| 7406000 | Positioning system using ultrasonic waves and method for operating the same Provided is a method for controlling a positioning system using ultrasonic waves. The method installs a plurality of ultrasonic satellites generating ultrasonic signals to position a mobile. The method sequentially gives satellite identification numbers to the plura... | 07/29/2008 |
| 7383053 | Position estimation of transceivers in communication networks This invention provides a system and method using wireless communication interfaces coupled with statistical processing of time-of-flight data to locate by position estimation unknown wireless receivers. Such an invention can be applied in sensor network application... | 06/03/2008 |
| 7372773 | Method and system of providing clustered networks of bearing-measuring sensors System and method for determining a location of a first target. The sensor network comprises a first sensor cluster comprising a first plurality of bearing measuring sensors. A first gateway is operatively coupled to the first plurality of bearing measuring sensors.... | 05/13/2008 |
| 7372772 | Systems and method for compensation of sensor degradation in shooter detection systems Systems and methods for compensation of sensor degradation in multi-shooter detection systems are described. In such systems, shooter position and trajectory can be estimated precisely from the shockwaves produced at the plurality of sensors by the incoming shots. H... | 05/13/2008 |
