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Browse by Category: Main > Communications
Class Information
Number: 367/910
Name: Communications, electrical: acoustic wave systems and devices > Portable sonar devices
Description: Acoustic wave echo systems or distance and direction finding systems which are made to be carried and operated by one person.










Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8369185 Inter-diver signaling device and process Feb. 5, 2013
8358973 Communications system Jan. 22, 2013
8346165 Diver audio communication system Jan. 1, 2013
8331856 Underwater camera communication system Dec. 11, 2012
8326219 Communications system Dec. 4, 2012
8045919 Electromagnetic/acoustic underwater communications system Oct. 25, 2011
8018794 Independent device for determining absolute geographic coordinates of an immersed moving body Sep. 13, 2011
7894304 Project calculator with integral distance measurement sensor Feb. 22, 2011
7877059 Underwater communications system comprising relay transceiver Jan. 25, 2011
7873316 Underwater communications system Jan. 18, 2011
7778112 Apparatus and method for sensing of three-dimensional environmental information Aug. 17, 2010
7642919 Signalling and localization device for an individual in the sea and method of use thereof Jan. 5, 2010
7292423 Acoustic/underwater signaling device Nov. 6, 2007
7272075 Personal sonar system Sep. 18, 2007
7145835 Personal sonar system Dec. 5, 2006
7006405 Portable ultrasound height measuring apparatus Feb. 28, 2006
6822927 Submersible ice fishing troller system Nov. 23, 2004
6791902 Portable fish finder Sep. 14, 2004
6493894 Ultrasonic transducer with low cavitation Dec. 17, 2002
6377514 Acoustic lens-based swimmer's sonar Apr. 23, 2002
6377516 Ultrasonic transducer with low cavitation Apr. 23, 2002
6272072 Underwater communication method, device, and system utilizing a doppler frequency shift Aug. 7, 2001
6259990 Information processing apparatus and pedestrian navigation system using the same Jul. 10, 2001
6181644 Diver mask underwater imaging system Jan. 30, 2001
6160760 Underwater signaling device Dec. 12, 2000
6125080 Underwater communication apparatus and communication method Sep. 26, 2000
6108269 Method for elimination of passive noise interference in sonar Aug. 22, 2000
6011754 Personal object detector with enhanced stereo imaging capability Jan. 4, 2000
5973618 Intelligent walking stick Oct. 26, 1999
5887376 Buoyant transducer assembly for assisting an angler Mar. 30, 1999
5771205 Buoyant transducer assembly for assisting an angler Jun. 23, 1998
5724313 Personal object detector Mar. 3, 1998
5687136 User-driven active guidance system Nov. 11, 1997
5570323 Navigational device for a scuba diver Oct. 29, 1996
5570322 Barracuda-repelling sound generation device Oct. 29, 1996
5557584 Moderate depth underwater surveillance system Sep. 17, 1996
5463598 Man overboard alert and locating system Oct. 31, 1995
5463597 Fish locator Oct. 31, 1995
5375100 Gas-operated apparatus for making a noise under water Dec. 20, 1994
5303206 Method and apparatus for measuring distance and determining direction in a fluid medium Apr. 12, 1994
5293351 Acoustic search device Mar. 8, 1994
5256908 Facility space data logging device Oct. 26, 1993
5241516 Diver navigation system Aug. 31, 1993
5231610 Piling and pier inspection apparatus and method Jul. 27, 1993
5200932 Underwater audible signalling device Apr. 6, 1993
5185605 Dive profile recorder Feb. 9, 1993
5185725 Diver locator system Feb. 9, 1993
5148412 Diver guidance method and system Sep. 15, 1992
5148411 Distance measurement device Sep. 15, 1992
5097254 Swimmer protection and pool safety warning device Mar. 17, 1992

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