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| Number | Title | Issue Date |
| 8059489 | Acoustic airport surveillance system The different advantageous embodiments provide a method and apparatus for detecting an aircraft. The different advantageous embodiments may provide a method for detecting an acoustic emission emitted by the aircraft using a number of acoustic sensors to form a detec... | 11/15/2011 |
| 8050143 | System and method for generating a threat alert A system for generating a threat alert in an infrastructure component is provided. The system includes multiple acoustic sensors configured to detect a signal. The system also includes a processing circuitry including at least one analog-to-digital converter configu... | 11/01/2011 |
| 7990805 | System and method for implementing non-lethal chemical warfare against rampage shooters A system and method for implementing non-lethal chemical warfare against rampage shooters. A sound detection module detects a sound of a gunshot from at least one of a collection of sensors within a building. A sound location module determines a location of the guns... | 08/02/2011 |
| 7952963 | Systems and methods for telescopic data compression in sensor networks Systems and methods for telescopic data compression in sensor networks are disclosed herein. An exemplary method of the disclosed subject matter for telescopically compressing data received from a plurality of sensors in a network adapted to detect a field includes ... | 05/31/2011 |
| 7894305 | Methods for detecting humans A method of detecting a human, that includes (a) measuring the ultrasonic signal emitted from human footsteps; (b) measuring the human body motion Doppler signature; reviewing the measurements of steps (a) and (b); and (d) determining the presence of a human. ... | 02/22/2011 |
| 7872948 | Acoustic wide area air surveillance system A method and apparatus for detecting an aircraft. The method is provided for wide area tracking of aircraft. An acoustic emission of the aircraft is detected from a plurality of locations. A position of the aircraft at a set of times is estimated by comparing a set ... | 01/18/2011 |
| 7362657 | Aquatic object detection and disruption system A system includes a receive line array that generates one or more receive line array signals, a processor operatively connected to the receive line array to process the receive line array signals and to generate detonation signals based upon the processed receive li... | 04/22/2008 |
| 7315485 | System and method for target classification and clutter rejection in low-resolution imagery A system and method of determining a classification of at least one underwater object is provided. The method includes generating at least one low-resolution imagery of an object from a plurality of frequencies produced by a detection device and extracting at least ... | 01/01/2008 |
| 7248219 | Correlation of flight track data with other data sources A method of triangulating aircraft transponder signals using a number of receivers connected to a central station over communication links includes applying at least one logic rule at each receiver to incoming transponder signals to filter redundant transponder sign... | 07/24/2007 |
| 7245559 | Acoustic fence Methods and apparatus determine if an underwater intruder passes under a protective boundary. A sonar sensor system comprises a plurality of sonar sensor modules that are spaced on a protective boundary. A sonar sensor module comprises a sonar transducer (sonar arra... | 07/17/2007 |
| 7233544 | Harbor fence Methods and apparatus determine if an intruder passes into a security zone that is associated with a waterfront asset. An embodiment of the invention provides a harbor fence system that is designed to be deployed in water around ships or other waterfront assets to s... | 06/19/2007 |
| 7213943 | Tap sensing lamp switch An improved startup device for controlling energization of a lamp has a base, stand coupled with the base and an illuminator connected to an electric power source. The base has a sound-collecting element mated with a housing unit so that the sound-collecting element... | 05/08/2007 |
| 7203132 | Real time acoustic event location and classification system with camera display An acoustic event location and classification system comprising an array of at least two acoustic transducers arranged spaced from one another; a central data processing unit for receiving signals from the acoustic transducers and processing the signals to determine... | 04/10/2007 |
| 7068166 | Break-in detection system A break-in detection system includes a detection sensor of an FBG type for detecting an intruder trying to climb over a fence around a premises, and a detection sensor of an OTDR type for detecting an intruder trying to demolish the fence. A fiber optic cable used a... | 06/27/2006 |
| 7050917 | Method for selectively reconfiguring a sensor according to applicable sensing requirements and reconfigurable sensor Reconfigurable sensor and method for selectively reconfiguring a sensor are provided. The reconfiguration of the sensor may be performed according to applicable requirements for sensing the position of an object. The method allows providing an array of sensing eleme... | 05/23/2006 |
| 7034716 | Passive real-time vehicle classification system utilizing unattended ground sensors A system is provided for determining the type of vehicle which has never been sensed before that is transiting between a cluster of acoustic and seismic sensors by graphing an acoustic source level against a seismic source level for the vehicle, with light vehicles ... | 04/25/2006 |
| 7019649 | Pool monitoring A pool monitoring system includes a hydrophone configured to generate an electrical signal in response to receiving a pressure wave in the liquid of a pool, and a processor configured to receive the electrical signal and generate a trigger signal, when the electrica... | 03/28/2006 |
| 7005993 | Sensor apparatus and method for detecting earthquake generated P-waves and generating a responsive control signal A P-wave sensing apparatus including a printed circuit board having mounted thereon from one to three orthogonally disposed miniature sensors that function as inertia monitoring devices with respect to motion of the external supporting structures, a plurality of amp... | 02/28/2006 |
| 6999923 | System and method for control of lights, signals, alarms using sound detection A system and method for detecting the presence of a particular source of audible content using an automatic speech recognizer component which is trained to recognize specific non-speech sounds. Training of the automatic speech recognizer component is accomplished by... | 02/14/2006 |
| 6980483 | Harbor fence Methods and apparatus determine if an intruder passes into a security zone that is associated with a waterfront asset. An embodiment of the invention provides a harbor fence system that is designed to be deployed in water around ships or other waterfront assets to s... | 12/27/2005 |
| 6980109 | System and method for monitoring intrusion detection in a pool A pool monitoring system includes a hydrophone configured to generate an electrical signal in response to receiving a pressure wave in the liquid of a pool, and a processor configured to receive the electrical signal and generate a trigger signal, when the electrica... | 12/27/2005 |
| 6960995 | Integrated lightning detector An alarm panel of a security system is additionally provided with an interference circuit for evaluating the possible presence of a large electromagnetic interference signal such as lightning. The earth ground connection of the alarm panel to a power source is used ... | 11/01/2005 |
| 6928030 | Seismic defense system A set of seismic detectors is distributed throughout a defense zone in communication with a set of attack or other controllable devices. A seismic signal source controlled by a zone defense coordinator communicates at scheduled times to the seismic detectors and thr... | 08/09/2005 |
| 6920083 | Method intended for detection and automatic classification, according to various selection criteria, of seismic events in an underground formation A method for automatic classification, according to various selection criteria, of seismic or microseismic events picked up by seismic receivers coupled with an underground formation under development, according to whether the events are purely of microseismic natur... | 07/19/2005 |
| 6905091 | System and method for controlling the acoustic signature of a device A system receives information regarding current flight conditions of a device such as an aircraft and determines the acoustic level of the sonic boom and/or other noise generated by the device during operation. The current acoustic level is compared to a desired lev... | 06/14/2005 |
| 6879544 | Manatee vocalization detection method and system Manatee vocalizations are detected by performing a variety of frequency domain processing operations on sound signals detected in an underwater region. Overlapping time windowed portions of digitized sound data are converted to the frequency domain where power spect... | 04/12/2005 |
| 6813220 | Acoustic fence Methods and apparatus determine if an underwater intruder passes under a protective boundary. A sonar sensor system comprises a plurality of sonar sensor modules that are spaced on a protective boundary. A sonar sensor module comprises a sonar transducer (sonar arra... | 11/02/2004 |
| 6778469 | Harbor fence Methods and apparatus determine if an intruder passes into a security zone that is associated with a waterfront asset. An embodiment of the invention provides a harbor fence system that is designed to be deployed in water around ships or other waterfront assets to s... | 08/17/2004 |
| 6697299 | Individual authentication method, individual authentication apparatus, information communication apparatus equipped with the apparatus, and individual authentication system including the apparatus The object of the present invention is to provide an individual authentication method and apparatus that use no bulky apparatuses, are insusceptible to forgery, and use an auditory organ which is almost independent of health condition and aging, is little... | 02/24/2004 |
| 6552963 | Firearm discharge detection device and warning system A firearm discharge detection device and alarm system featuring a plurality of detector units placed inside a structure which communicate with a central monitoring unit. Each detection unit will detect the discharge of a firearm in its proximity from deci... | 04/22/2003 |
| 6400647 | Remote detection system A remote acoustic detection system includes at least one detection unit delivered to a remote or inaccessible location by a missile or other aircraft. The detection unit monitors acoustic events at the location such as aircraft takeoffs and landings and p... | 06/04/2002 |
| 6288973 | Sensor systems An acoustic sensor system for the detection, location and classification of sound-generating targets, such as helicopters, from a ship includes a base station aboard the ship, having a radio transmitter/receiver (B-Tx/Rx) and a digital signal processor un... | 09/11/2001 |
| 5777949 | Trajectory matched passive detection system A passive target detection system for use with a moving platform which indes a module for postulating modeled target signals based upon a number of factors including at least one factor selected from the group consisting of signal beam pattern, frequency... | 07/07/1998 |
| 5721712 | Aircraft detection system A covert aircraft detection system for a submarine is described which inces an acoustic antenna array and a signal processor to process the acoustic signals to provide the location of the detected aircraft and to classify the detected aircraft. The acous... | 02/24/1998 |
| 5675553 | Method for data gap compensation The present invention comprises a method for filling in missing data intels in a quantized time-dependent data signal that is generated by, e.g., an underwater acoustic sensing device. In accordance with one embodiment of the invention, this quantized ti... | 10/07/1997 |
| 5559758 | Alerting process An alerting process is presented that uses the steps of first receiving at least a first signal from a signal source for a predetermined short interval. The first signal is analyzed over the predetermined short interval to obtain the spectral energy of th... | 09/24/1996 |
| 5473942 | Acoustic location fixing insect detector A device and a method for locating and counting insects in agricultural commodities has been developed. Acoustic sensors pick up sounds emanating from adult and or larval insects. The electrical outputs of the sensors are amplified and analyzed to determi... | 12/12/1995 |
| 5430690 | Method and apparatus for processing signals to extract narrow bandwidth features A method and apparatus for processing a set of signals to identify narrow bandwidth features of the signals, and optionally to process the signals further to extract information about the identified narrow-band features. The invention processes a set of i... | 07/04/1995 |
| 5412622 | Apparatus for discriminating sound sources in a water environment This invention provides an apparatus including a plurality of omnidirectional hydrophone sensors in a particularly configured array comprised of ring members which are carried between a plurality of tensioned cables, the cables being tensioned by an ancho... | 05/02/1995 |
| 5373486 | Seismic event classification system In the computer interpretation of seismic data, the critical first step is to identify the general class of an unknown event. For example, the classification might be: teleseismic, regional, local, vehicular, or noise. Self-organizing neural networks (SON... | 12/13/1994 |
