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Class Information
Number: 367/901
Name: Communications, electrical: acoustic wave systems and devices > Noise or unwanted signal reduction in nonseismic receiving system
Description: Receiving systems other than those used for detecting acoustic waves in earth wherein the effects of interference are diminished or compensated for.










Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
8682244 Underwater communication system Mar. 25, 2014
8654604 Circuit configuration for evaluating and/or activating sound transducers Feb. 18, 2014
8515343 Water based vehicle communications system Aug. 20, 2013
8515344 Diver communication system Aug. 20, 2013
8385821 Underwater vehicle communications system Feb. 26, 2013
8364078 Communications system Jan. 29, 2013
8358973 Communications system Jan. 22, 2013
8346165 Diver audio communication system Jan. 1, 2013
8346164 Underwater communication system Jan. 1, 2013
8335469 Communications system Dec. 18, 2012
8331856 Underwater camera communication system Dec. 11, 2012
8326219 Communications system Dec. 4, 2012
8315560 Underwater navigation Nov. 20, 2012
8248233 Location filtering based on device mobility classification Aug. 21, 2012
8131213 Sea vessel tagging apparatus and system Mar. 6, 2012
8045919 Electromagnetic/acoustic underwater communications system Oct. 25, 2011
7877059 Underwater communications system comprising relay transceiver Jan. 25, 2011
7873316 Underwater communications system Jan. 18, 2011
7853206 Underwater communications system with adaptable carrier frequency Dec. 14, 2010
7711322 Underwater communications system and method May. 4, 2010
7599254 Transducer static discharge methods and apparatus Oct. 6, 2009
7515703 Method and system for determining conference call embellishment tones and transmission of same Apr. 7, 2009
7480595 System estimation method and program, recording medium, and system estimation device Jan. 20, 2009
7457197 Reduction of low frequency vibrational noise in towed arrays Nov. 25, 2008
7453771 Apparatus and method for reducing noise for moveable target Nov. 18, 2008
7388810 Ultrasonic distance measurement system Jun. 17, 2008
7319640 Noise suppression system Jan. 15, 2008
7304912 Scale adaptive filtering Dec. 4, 2007
7255196 Windshield and sound-barrier for seismic sensors Aug. 14, 2007
7245557 Sonar Jul. 17, 2007
7164620 Array device and mobile terminal Jan. 16, 2007
7164621 Underwater sounding apparatus Jan. 16, 2007
7149149 Acoustic flow noise cancellation using a reference hydrophone Dec. 12, 2006
7020044 Apparatus for producing gaseous vapor baffle Mar. 28, 2006
7004031 Ultrasonic sensor Feb. 28, 2006
6868044 Data adaptive interference suppression Mar. 15, 2005
6859420 Systems and methods for adaptive wind noise rejection Feb. 22, 2005
6822928 Adaptive sonar signal processing method and system Nov. 23, 2004
6744694 Gaseous cavity for forward-looking sonar quieting Jun. 1, 2004
6704671 System and method of identifying the onset of a sonic event Mar. 9, 2004
6659232 Method and device for position detection of an object along an acoustic-signal conductor Dec. 9, 2003
6622647 Active noise cancellation for a torpedo seeker head Sep. 23, 2003
6615143 Method and apparatus for reconstructing and acoustic field Sep. 2, 2003
6590833 Adaptive cross correlator Jul. 8, 2003
6424596 Method and apparatus for reducing noise from near ocean surface sources Jul. 23, 2002
6418083 Phase fluctuation based signal processor Jul. 9, 2002
6356510 Phase fluctuation enhanced adaptive processor Mar. 12, 2002
6262943 Signal processing system for sensing a periodic signal in noise Jul. 17, 2001
6128249 Method of operating a continuous wave sonar system Oct. 3, 2000
6097669 Wavelet filtering of sodar signals Aug. 1, 2000

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