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...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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| Number | Title | Issue Date |
| 8189429 | Microphone proximity detection A mobile communications device contains at least two microphones. One microphone is located away from the handset receiver and serves to pick up voice of a near end user of the device for transmission to the other party during a call. Another microphone is located n... | 05/29/2012 |
| 8159901 | System and method for discriminating a subsurface target in the water from a surface target in the water A computer-implemented method of discriminating a surface from a subsurface sound-generating target in the water includes identifying an arrival angle of sound generated by the sound-generating target and received by a sound receiver at a known depth in the water. T... | 04/17/2012 |
| 8120992 | Method for finding range and bearing to underwater object A method for localizing the range and bearing of a distant underwater object includes firing a preselected number of supercavitating projectiles sequentially from a firing location such that each projectile tracks along substantially the same trajectory. Supercavita... | 02/21/2012 |
| 8111582 | Projectile-detection collars and methods User-wearable sensor arrays for use with projectile-detection systems, and methods of detecting a projectile with user-wearable sensor arrays. ... | 02/07/2012 |
| 8107320 | Autonomous sonar system and method An autonomous sonar system and method provide an arrangement capable of beamforming in three dimensions, detecting loud targets, adaptively beamforming in three dimensions to avoid the loud targets, detecting quiet targets, localizing the loud or quiet targets in ra... | 01/31/2012 |
| 7952961 | Audio compass for motion tracking A method for tracking motion using an audio compass is disclosed. The method comprises receiving motion sensor data indicating seismic activity recorded by at least two seismic sensors, and converting the received motion sensor data into audio signals for interpreta... | 05/31/2011 |
| 7885145 | System and method for selection of an object of interest during physical browsing by finger pointing and snapping A system and method for selecting an object from a plurality of objects in a physical environment is disclosed. The method may include analyzing acoustic data received by a plurality of acoustic sensors, detecting a snapping sound in the acoustic data, determining t... | 02/08/2011 |
| 7869306 | System and method for automatic detection of a sonar contact Systems and methods are provided for automatically detecting sonar contacts. The system comprises a data analyzer that integrates the raw data from a plurality of sonar detectors over a predetermined period of time, thereby providing integrated data characterizing a... | 01/11/2011 |
| 7724610 | Ultrasonic multilateration system for stride vectoring A lateration system comprising at least one transmitter attached to a first object and configured to emit pulses, three or more receivers attached to at least one second object and configured to receive the pulses emitted by the transmitter, and a processor configur... | 05/25/2010 |
| 7649807 | Method for locating an impact on a surface and device for implementing such a method Method for locating an impact on a surface (9), in which acoustic sensors (6) pick up acoustic signals ski (t) generated by the impact and the impact is located by calculating, for a number of reference points of index j, a validation parame... | 01/19/2010 |
| 7502279 | Target direction indication and acoustic pulse analysis A method of providing an indication of the direction of a target such as a sniper. A rifle mounted sensor array detects an acoustic pulse originating from the target. The signal is processed to estimate the direction of the target, and an indication is provided when... | 03/10/2009 |
| 7463554 | Method of detecting and viewing low-power moving acoustic sources The inventive method relates to the field of submarine detection and deals in particular with the problem of detecting low-power acoustic underwater objects by passive detection systems, of the passive drifting buoy type, which are used by maritime patrol systems, f... | 12/09/2008 |
| 7453770 | Method for directional location and locating system In order to locate electromagnetic or acoustic signal sources of a sensor configuration (1 a through 1 c) fitted with at least two electric outputs; where the incidence-dependent transfer functions between the acoustic signals incident on... | 11/18/2008 |
| 7430236 | Communication interface for a path measuring device A communication interface for a path measuring device is provided. The interface can be coupled between the path measuring device and a control device. A path determination can be carried out by the path measuring device by way of a measurement of the propagation ti... | 09/30/2008 |
| 7408125 | Fish scale and length measuring sensor A fish length measuring apparatus that incorporates a digital scale allows fishermen to both measure and weigh their catch without touching or handling the fish. The apparatus incorporates a housing with a lip grip to grasp the mouth of the fish. A viewable digital ... | 08/05/2008 |
| 7395181 | Motion tracking system Tracking a motion of a body by obtaining two types of measurements associated with the motion of the body, one of the types including acoustic measurement. An estimate of either an orientation or a position of the body is updated based on one of the two types of mea... | 07/01/2008 |
| 7390379 | Method and apparatus for determining the lateral position of a web or fabric edge in a former The lateral position of a web or fabric edge 11 in a paper machine is determined using an ultrasonic sensor. The ultrasonic sensor has a detector head 42, with an air channel system which opens to the vicinity of the head for forming an air knife which... | 06/24/2008 |
| 7382687 | Underwater station An underwater station including: a transmitter means located on a flotation means connected to the station, and a tracking means to determine the relative location of the flotation means. ... | 06/03/2008 |
| 7379388 | Positioning system A system to position at least one vessel or object in an aquatic environment including: each vessel or object having a receiver connected thereto; and at least two transmitters; wherein each transmitter transmits a unique signal and the receiver on each vessel or ob... | 05/27/2008 |
| 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 |
| 7362656 | Ultrasonic locating system The invention relates to a method and a system for monitoring and position determination of objects and/or living beings within an area, such as, e.g. a room in a building or a road tunnel. The system comprises a plurality of identification tags equipped with an ult... | 04/22/2008 |
| 7359285 | 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 ... | 04/15/2008 |
| 7334735 | Card for interaction with a computer A smart card comprising: a memory for storing information; at least one transmitting or receiving antenna; and a low frequency circuit, for handling information associated with said antenna and said memory, which information is modulated at a modulation frequency of... | 02/26/2008 |
| 7336563 | Method and system for increased update rate in acoustic positioning A method for obtaining an increased update rate in an indoor acoustic positioning system for determining the position of one or more identification tags, comprising transmitting from an identification tag an acoustic spread spectrum sequence that is unique to the id... | 02/26/2008 |
| 7325328 | Methods and apparatus to determine vessel draft and amount of cargo loaded in a vessel The present invention discloses the methods and apparatus to acquire, record, and analyze data to determine the draft of a water-borne vessel and/or the amount of cargo that has been loaded in a water-borne vessel. The apparatus includes a portable, handheld housing... | 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 |
| 7315336 | Stress seal for touchscreen systems A touchscreen system is provided that incorporates a simplified sealing system around the bezel. The touchscreen system includes a planar touchscreen coupled to a display device having a planar display surface, the touchscreen having a touch sensitive region on a to... | 01/01/2008 |
| 7315488 | Methods and systems for passive range and depth localization A to method and system provide a range and depth localization of a passive sound generator, e.g., a submarine target. The method and system use an autocorrelation and/or a cross correlation to arrive at a plurality of range versus depth estimates, which are resolved... | 01/01/2008 |
| 7313479 | Method for real-time well-site interpretation of array resistivity log data in vertical and deviated wells A method and apparatus for real-time well-site interpretation of array resistivity log data. An inversion of data with different depths of investigation is carried out after data shoulder-bed correction. The formation model used by inversion is constructed with the ... | 12/25/2007 |
| 7307914 | Hypothesized range and depth sonar processing method A method for determining the likely range and depth of an acoustically radiating source in which characteristics are used from hypothetical ranges and depths. A received sonar signal is compared with modeled ranges and depths. The correlation between the received si... | 12/11/2007 |
| 7307537 | Identification tag The invention relates to an identification chip for insertion in an object located in a liquid. The identification chip comprises an acoustic resonator (100), which exhibits a number of distinct resonant frequencies, where the combination of resonant frequenc... | 12/11/2007 |
| 7304912 | Scale adaptive filtering A scale adaptive filtering scheme is developed for underspread channels based on a model of the linear time varying channel operator as a process in scale. Recursions serve the purpose of adding detail to the filter estimate until a suitable measure of fidelity and ... | 12/04/2007 |
| 7292501 | Compact shooter localization system and method Systems and methods for locating the shooter of supersonic projectiles are described. Muzzle blast signals are neither sought nor required. The system uses at least two sensors, with each sensor having a 3-axis accelerometer. The sensors are spaced apart at least 1 ... | 11/06/2007 |
| 7289389 | Resolving directional information in sonar arrays The invention concerns the resolution of directional information in sonar arrays. In particular it concerns a method for resolving such directional information, which may be useful in hydrographic surveys. The method comprises the steps of receiving a block of senso... | 10/30/2007 |
| 7283424 | High speed underwater projectile tracking system and method A system and a method are provided to accurately track the trajectory of high-speed underwater objects. A number of hoops with means for controlling the buoyancy thereof are aligned on a range in the anticipated path of the high speed projectile. The hoops are suffi... | 10/16/2007 |
| 7280434 | Method, medium, and apparatus for global localization A global localization apparatus, medium, and method, with the global localization method including selecting one from a plurality of samples and shifting the selected sample according to a movement of a robot, generating a new sample within a predetermined range of ... | 10/09/2007 |
| 7266045 | Gunshot detection sensor with display A system for locating and identifying an acoustic event such as gunfire. The inventive system employs a plurality of man wearable acoustic sensors for detecting gunfire, each acoustic sensor having a display associated therewith for displaying information concerning... | 09/04/2007 |
| 7266042 | Multi-stage maximum likelihood target estimator A multi-stage maximum likelihood target estimator for use with radar and sonar systems is provided. The estimator is a software implemented algorithm having four computational stages. The first stage provides angle smoothing for data endpoints thereby reducing angle... | 09/04/2007 |
| 7263373 | Sound-based proximity detector A proximity detector for use in a mobile telephone having at least a microphone and a loudspeaker operatively connected to a signal processor is presented. The proximity detector includes data processing and control modules having a module for controlling the signal... | 08/28/2007 |
| 7255007 | Configurations and methods for ultrasound time of flight diffraction analysis An ultrasound test apparatus for polymeric materials (e.g., plastic pipes) includes a low-absorption housing that at least partially encloses an ultrasound transducer, wherein the transducer emits a low frequency wide angle ultrasound beam with a narrow bandwidth. I... | 08/14/2007 |
