Did You Know...
...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Number | Title | Issue Date |
| 8179743 | Procedure for eliminating ghost sources from passive sonar comprising several linear antennas This invention concerns the field of passive sonar systems simultaneously processing several linear antennas. This invention includes a method to eliminate ghost sources for a passive sonar having at least two linear antennas A and B, the method including: An initia... | 05/15/2012 |
| 8174934 | 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 sound sensor, a first sound pressure of a sound wave propagated from the ... | 05/08/2012 |
| 7969821 | Method and system for locating a wave source within a defined area A method and system for locating a sound source within a defined area in which the sound data is collected with a plurality of spaced apart microphones. The sound data received by the microphones is processed to form a cross spectral density matrix containing vector... | 06/28/2011 |
| 7855935 | Weapon fire location systems and methods involving mobile device and/or other features Systems and methods are disclosed for processing information associated with weapon fire. In one exemplary embodiment, there is provided a method of processing information associated with weapon fire, including identifying a weapon fire incident, determining positio... | 12/21/2010 |
| 7616526 | Determination of time difference of arrival in distributed sensor networks An object localizing system comprises sensor devices at different sites, each sensor device being capable of detecting a signal from an object, and control means for repeatedly responding to the outputs of the sensor devices by selecting a sub-set of the devices and... | 11/10/2009 |
| 7471592 | Method and apparatus for passive acoustic ranging An apparatus for range-estimating a noise source including a first passive, vertical hydrophone array of at least two receivers at a first distance from the noise source. The apparatus includes a second passive, vertical hydrophone array of at least two receivers at... | 12/30/2008 |
| 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 |
| 7417923 | Method and apparatus for performing an ultrasonic survey An ultrasonic surveying method includes a network of transceivers adjacent the item to be surveyed to establish a reference plane and locating an array of pingers on the object to be surveyed to establish a survey plane, establishing by ranging from the pingers to t... | 08/26/2008 |
| 7417924 | Apparatus, systems and methods for determining position of marine seismic acoustic receivers Apparatus, systems and methods for calculating position of marine seismic acoustic receivers, and for estimating sound velocity profile of a fluid, are disclosed. One position calculation system includes a vessel, two or more vessel hull-mounted transmitters, a plur... | 08/26/2008 |
| 7376045 | System and method for determining positions of towed marine seismic streamers A system comprises a plurality of acoustic transmitters, mounted inside the streamers, adapted to transmit broadband signals having low cross-correlation between the signals of different transmitters; a plurality of acoustic receivers, mounted inside the streamers, ... | 05/20/2008 |
| 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 |
| 7366056 | Depth sounding by acoustic pingers in a seismic spread An embodiment of a method for conducting a bathymetric survey across a seismic spread includes the steps of emitting a signal from a pinger positioned within the seismic spread, measuring the arrival time of a bottom reflection of the signal at a receiver positioned... | 04/29/2008 |
| 7357027 | Ultrasonic sensor system for web-guiding apparatus A sensor system for determining the position of at least one edge of at least one web material traveling along a predetermined path. In one embodiment, the sensor system has at least one transmitter block having a plurality of transmitters capable of selectively tra... | 04/15/2008 |
| 7336262 | Coordinate-capturing apparatus A coordinate-capturing apparatus suitable for inputting handwritten characters or diagrams to a computer or a printer is disclosed. The apparatus includes an ultrasonic transmitter mounted on an input pen for transmitting ultrasonic waves, two ultrasonic receivers f... | 02/26/2008 |
| 7330396 | Farfield analysis of noise sources An algorithm diagnoses the noise source strength distribution on an arbitrarily shaped object based on acoustic pressures measured in the far field, known as FANS. FANS enable one to acquire a quick estimate of the acoustic pressure at locations that are off limit t... | 02/12/2008 |
| 7327286 | Marine vessel monitoring system The marine vessel monitoring system of the present invention enables marine vessel owners to monitor their vessels when they are unable or unavailable to personally do so. The system of the present invention provides an efficient method for inspecting and repairing ... | 02/05/2008 |
| 7319640 | Noise suppression system A method and apparatus is provided for suppressing noise which includes receiving a plurality of signals from an array of sensors and transforming each of these signals to the frequency domain. The transformed signals are beamformed so that noise sources can be iden... | 01/15/2008 |
| 7305886 | Noise detecting apparatus An accurate measure of normally operating noise is required for a useful noise measurement system. A device is needed to make a representative measure of the boat's acoustic power using measured boat sound level with integrated corrections for sensed distance to the... | 12/11/2007 |
| 7301851 | Underway hull survey system A method and survey system for inspecting hulls of ships has a base portion and side portions defining an inspection channel in water. Sonar is mounted on the side portions transmitting acoustic signals onto a hull as a ship passes through the inspection channel, re... | 11/27/2007 |
| 7277359 | Navigation processor, a system comprising such a navigation processor and a method of controlling an underwater system by such a navigation processor A navigation processor is interfaced to an acoustic processor and to DGPS surface positioning equipment on a vessel. The navigation processor receives (a) position data from the DGPS surface positioning equipment, (b) data from a gyrocompass on an underwater system,... | 10/02/2007 |
| 7266044 | Method and apparatus for acoustic source tracking using a horizontal line array An apparatus for processing passive acoustic signals received on a horizontal line array that were either emitted from an underwater object or echo returned from an object, is proposed to track the motion (bearing change and range change) of an object (target) relat... | 09/04/2007 |
| 7257483 | Method and apparatus for determining the position of an underwater object in real-time A method and apparatus is disclosed for providing a determined position in real-time of an underwater object using a plurality of sensors operating at various sampling rates and for using the determined position in real-time in order to perform inspection tasks inte... | 08/14/2007 |
| 7236705 | Methods and systems for aligning and maintaining alignment of point-to-point transceivers in a network A digital data network uses network nodes incorporating infrared transceivers. Each node includes a plurality of infrared transceivers having transmitter and receiver optics designed to facilitate line-of-sight infrared optical communications in a residential or bus... | 06/26/2007 |
| 7228123 | Method and system for automatically determining lines of sight between nodes The present invention uses data from several sources to determine lines-of-sight between nodes in a FSO network. The present invention provides a three-dimensional neighborhood modeling system that uses aerial image data, Digital Elevation Models, U.S. street map da... | 06/05/2007 |
| 7215785 | Passive sound telemetry system and method and operating toy using the same A passive sound telemetry system and method is provided, in which phase differences are calculated for every pulse from acoustic signals received via three or six acoustic receivers, to measure a distance and angle with respect to a sound source. The system is appli... | 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 |
| 7198001 | Underwater inspection measurement survey A platform assembly of circular plates are yieldably held positioned by a support mounted on an underwater vehicle propelled under remote control within seawater to a location below an underwater surface such as the bottom of a ship hull, for surface measurement sur... | 04/03/2007 |
| 7190633 | Self-calibrating shooter estimation Shockwave-only solutions that estimate shooter position and shot trajectory are extremely sensitive to the quality and precision of the shock time-of-arrival (TOA) measurements as well as the accuracy to which relative sensor positions in space are known. Over the l... | 03/13/2007 |
| 7181356 | Device and method for analyzing the structure of a material The invention relates to a device that is used to analyse the structure of a material. The inventive device comprises: probe elements (5) which are used to (i) emit a wave, in the material, with emission delay laws that correspond to several simultaneous devi... | 02/20/2007 |
| 7178408 | Sodar sounding of the lower atmosphere A method and system for acoustically sounding the lower atmosphere involves the transmitting of an acoustic chirp and the processing of returned echoes and interference using wavelet and matched filter techniques. A single transmitter and four receivers may be used,... | 02/20/2007 |
| 7173880 | Arrangement with an acoustic array with a sound velocity meter Arrangement with an acoustic array with a sound velocity meter, suitable to be arranged under water. The acoustic array is able to receive acoustic signals from an underwater device and to provide acoustic array output data to a processing arrangement such that the ... | 02/06/2007 |
| 7174201 | Position sensing system with integral location pad and position display Apparatus for performing a medical procedure on a tissue within a body of a subject includes a wireless tag which is fixed to the tissue and includes a first sensor coil. A second sensor coil is fixed to a medical device for use in performing the procedure. An integ... | 02/06/2007 |
| 7170820 | Determination of time difference of arrival in distributed sensor networks An object localising system comprises sensor devices at different sites, each sensor device being capable of detecting a signal from an object, and control means for repeatedly responding to the outputs of the sensor devices by selecting a sub-set of the devices and... | 01/30/2007 |
| 7164620 | Array device and mobile terminal From output of a microphone, a first circuit generates a signal having first directivity which passes, and a second circuit generates a signal having second directivity which conversely cuts off, a signal arriving from a direction of a target sound source to output ... | 01/16/2007 |
| 7161873 | Method of detecting and locating a source of partial discharge in an electrical apparatus A method of detecting and localizing a source of partial discharge in an electrical apparatus placed in an enclosure containing an acoustically-conductive fluid. The method consists in: positioning (31) acoustic detectors an... | 01/09/2007 |
| 7158126 | Acoustic based pointing device An acoustic based pointing device and a system and method for using the pointing device to move a cursor on a display screen of a display device. The pointing device comprises an acoustic source that generates and propagates an acoustic signal that is detected by fo... | 01/02/2007 |
| 7151715 | Method and apparatus for detecting the position of the edge of a moving product web A method and an apparatus (1) are used to detect the position of the edge (2) of a moving product web (3). The apparatus (1) has piezoelectric elements (5), which firstly output ultrasonic pulses (10) and secondly pick them ... | 12/19/2006 |
| 7143363 | Method for displaying marine vessel information for an operator A method for displaying marine vessel information automatically selects a chosen visual display based on the magnitudes of one or more vessel-related parameters, such as engine speed, gear selector position, or vessel velocity. Based on the selected marine vessel op... | 11/28/2006 |
| 7142786 | Wireless infrared network transceiver A digital data network uses network nodes incorporating infrared transceivers. Each node includes a plurality of infrared transceivers having transmitter and receiver optics designed to facilitate line-of-sight infrared optical communications in a residential or bus... | 11/28/2006 |
