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Class Information
Number: 367/118
Name: Communications, electrical: acoustic wave systems and devices > Distance or direction finding
Description: Subject matter in which the extent of linear and/or relative angular spacing between an acoustic wave emitter and receiver is determined.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7395181 |
Motion tracking system |
Jul. 1, 2008 |
| 7390379 |
Method and apparatus for determining the lateral position of a web or fabric edge in a former |
Jun. 24, 2008 |
| 7382687 |
Underwater station |
Jun. 3, 2008 |
| 7379388 |
Positioning system |
May. 27, 2008 |
| 7372773 |
Method and system of providing clustered networks of bearing-measuring sensors |
May. 13, 2008 |
| 7359285 |
Systems and methods for determining shooter locations with weak muzzle detection |
Apr. 15, 2008 |
| 7336563 |
Method and system for increased update rate in acoustic positioning |
Feb. 26, 2008 |
| 7319640 |
Noise suppression system |
Jan. 15, 2008 |
| 7307537 |
Identification tag |
Dec. 11, 2007 |
| 7307914 |
Hypothesized range and depth sonar processing method |
Dec. 11, 2007 |
| 7304912 |
Scale adaptive filtering |
Dec. 4, 2007 |
| 7292501 |
Compact shooter localization system and method |
Nov. 6, 2007 |
| 7283424 |
High speed underwater projectile tracking system and method |
Oct. 16, 2007 |
| 7280434 |
Method, medium, and apparatus for global localization |
Oct. 9, 2007 |
| 7266042 |
Multi-stage maximum likelihood target estimator |
Sep. 4, 2007 |
| 7263373 |
Sound-based proximity detector |
Aug. 28, 2007 |
| 7161873 |
Method of detecting and locating a source of partial discharge in an electrical apparatus |
Jan. 9, 2007 |
| 7151480 |
Method and system of triangulating an object |
Dec. 19, 2006 |
| 7126876 |
Harmonic ambiguity resolver and inter array harmonic tracker |
Oct. 24, 2006 |
| 7109918 |
Nonlinear beam forming and beam shaping aperture system |
Sep. 19, 2006 |
| 7098579 |
Transmitting apparatus, sound sensor and autonomous traveling vehicle |
Aug. 29, 2006 |
| 7031224 |
Buoy-to-sailboat distance indicator system |
Apr. 18, 2006 |
| 7020046 |
System and method for target motion analysis with intelligent parameter evaluation plot |
Mar. 28, 2006 |
| 6980486 |
Acquisition system particularly suited for tracking targets having high bearing rates |
Dec. 27, 2005 |
| 6965541 |
Gun shot digital imaging system |
Nov. 15, 2005 |
| 6954535 |
Method and adapting a hearing aid, and hearing aid with a directional microphone arrangement for implementing the method |
Oct. 11, 2005 |
| 6925296 |
Sound-based proximity detector |
Aug. 2, 2005 |
| 6847896 |
Seismic data acquisition method and apparatus |
Jan. 25, 2005 |
| 6707760 |
Projectile sonar |
Mar. 16, 2004 |
| 6680688 |
Measuring system and method for detecting object distance by transmitted media with different wave velocities |
Jan. 20, 2004 |
| 6667709 |
Method and apparatus for detecting leaks in buried pipes by using a selected combination of geophysical instruments |
Dec. 23, 2003 |
| 6549627 |
Generating calibration signals for an adaptive beamformer |
Apr. 15, 2003 |
| 6525994 |
Tracking system and method of operation thereof |
Feb. 25, 2003 |
| 6501704 |
Underwater object positioning system |
Dec. 31, 2002 |
| 6473363 |
Sonar direction finding |
Oct. 29, 2002 |
| 6418082 |
Bottom moored and tethered sensors for sensing amplitude and direction of pressure waves |
Jul. 9, 2002 |
| 6414745 |
Method and apparatus for determining the relative height of two targets |
Jul. 2, 2002 |
| 6385130 |
Dual channel switch with frequency band limiting |
May. 7, 2002 |
| 6353578 |
Phase alignment for vector and coherent signal processing |
Mar. 5, 2002 |
| 6328696 |
Bias charge regulator for capacitive micromachined ultrasonic transducers |
Dec. 11, 2001 |
| 6328697 |
Capacitive micromachined ultrasonic transducers with improved capacitive response |
Dec. 11, 2001 |
| 6288973 |
Sensor systems |
Sep. 11, 2001 |
| 6278655 |
Fault location toning method for submarine networks |
Aug. 21, 2001 |
| 6272072 |
Underwater communication method, device, and system utilizing a doppler frequency shift |
Aug. 7, 2001 |
| 6259365 |
Laser security fence apparatus |
Jul. 10, 2001 |
| 6256263 |
Acoustic sensing countermeasure device and method of determining a threat direction |
Jul. 3, 2001 |
| 6240051 |
Acoustic surveillance apparatus and method |
May. 29, 2001 |
| 6237410 |
Method for controlling the speed of a pump based on measurement of the fluid depth in a well |
May. 29, 2001 |
| 6198693 |
System and method for finding the direction of a wave source using an array of sensors |
Mar. 6, 2001 |
| 6185505 |
Broad ocean bathymetric fix |
Feb. 6, 2001 |
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