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Class Information
Number: 367/128
Name: Communications, electrical: acoustic wave systems and devices > Distance or direction finding > With electromagnetic wave
Description: Subject matter in which a signal is transmitted through space in the form of electromagnetic waves.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7602329 |
Systems and methods of tracking and/or avoiding harm to certain devices or humans |
Oct. 13, 2009 |
| 7535798 |
Method, system, and medium for estimating location using ultrasonic waves |
May. 19, 2009 |
| 7515105 |
Method for mapping machine rooms and locating machines within machine rooms |
Apr. 7, 2009 |
| 7499376 |
System and method for position awareness for minimizing power consumption in sensor network environment |
Mar. 3, 2009 |
| 7483337 |
System and method for extending GPS to divers and underwater vehicles |
Jan. 27, 2009 |
| 7474208 |
Method and system for locating an object |
Jan. 6, 2009 |
| 7420878 |
System and method for precision acoustic event detection |
Sep. 2, 2008 |
| 7408839 |
Distance measurement for wireless building automation devices |
Aug. 5, 2008 |
| 7406000 |
Positioning system using ultrasonic waves and method for operating the same |
Jul. 29, 2008 |
| 7379390 |
Distance measurement for wireless building automation devices |
May. 27, 2008 |
| 7379389 |
Apparatus for monitoring surroundings of vehicle and sensor unit |
May. 27, 2008 |
| 7372771 |
Electronic distance measuring apparatus |
May. 13, 2008 |
| 7362656 |
Ultrasonic locating system |
Apr. 22, 2008 |
| 7352652 |
Ultrasonic tracking and locating system |
Apr. 1, 2008 |
| 7272074 |
System and method for extending GPS to divers and underwater vehicles |
Sep. 18, 2007 |
| 7266045 |
Gunshot detection sensor with display |
Sep. 4, 2007 |
| 7233546 |
Flash event detection with acoustic verification |
Jun. 19, 2007 |
| 7190634 |
GPS-based underwater cable positioning system |
Mar. 13, 2007 |
| 7190635 |
System and method for multi-beam laser vibrometry triangulation mapping of underground acoustic sources |
Mar. 13, 2007 |
| 7181356 |
Device and method for analyzing the structure of a material |
Feb. 20, 2007 |
| 7088641 |
Bistatic azimuth detection system and detection method |
Aug. 8, 2006 |
| 7064669 |
Electronic tether for portable objects |
Jun. 20, 2006 |
| 7031224 |
Buoy-to-sailboat distance indicator system |
Apr. 18, 2006 |
| 7010290 |
System and method of determining short range distance between RF equipped devices |
Mar. 7, 2006 |
| 6965542 |
MILES hand grenade |
Nov. 15, 2005 |
| 6904000 |
Object locator system |
Jun. 7, 2005 |
| 6859359 |
Modular sensor platform |
Feb. 22, 2005 |
| 6807127 |
Navigational device for an underwater diver |
Oct. 19, 2004 |
| 6680688 |
Measuring system and method for detecting object distance by transmitted media with different wave velocities |
Jan. 20, 2004 |
| 6680876 |
Natator in water tank, controlling apparatus and position measuring apparatus thereon |
Jan. 20, 2004 |
| 6667709 |
Method and apparatus for detecting leaks in buried pipes by using a selected combination of geophysical instruments |
Dec. 23, 2003 |
| 6621764 |
Weapon location by acoustic-optic sensor fusion |
Sep. 16, 2003 |
| 6614721 |
Collision avoidance method and system |
Sep. 2, 2003 |
| 6590834 |
Local positioning system using acoustic time-of-flight and a fixed array of receivers and method for use |
Jul. 8, 2003 |
| 6501704 |
Underwater object positioning system |
Dec. 31, 2002 |
| 6424597 |
Multielements ultrasonic contact transducer |
Jul. 23, 2002 |
| 6404703 |
Method and apparatus for distance measurement |
Jun. 11, 2002 |
| 6331964 |
Motion detectors and occupancy sensors based in displacement detection |
Dec. 18, 2001 |
| 6327219 |
Method and system for directing a following device toward a movable object |
Dec. 4, 2001 |
| 6288973 |
Sensor systems |
Sep. 11, 2001 |
| 6215731 |
Acousto-optic weapon location system and method |
Apr. 10, 2001 |
| H1916 |
Hostile weapon locator system |
Nov. 7, 2000 |
| 6115326 |
Ultrasonic micro-machined selectable transducer array |
Sep. 5, 2000 |
| 6069843 |
Optical pulse induced acoustic mine detection |
May. 30, 2000 |
| 6064629 |
Object detection apparatus and method |
May. 16, 2000 |
| 5970024 |
Acousto-optic weapon location system and method |
Oct. 19, 1999 |
| 5940346 |
Modular robotic platform with acoustic navigation system |
Aug. 17, 1999 |
| 5850370 |
Laser-based dimensioning system |
Dec. 15, 1998 |
| 5831937 |
Portable ranging system for analyzing gait |
Nov. 3, 1998 |
| 5734623 |
Fiber optic sound velocity profiler |
Mar. 31, 1998 |
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