Patents
Sitemap › H04 - Electric communication technique › H04B - Transmission › H04B 11 - Transmission systems employing ultrasonic, sonic or infrasonic waves
Patents for H04B 11 - Transmission systems employing ultrasonic, sonic or infrasonic waves (1,545)
05/2000
05/02/2000US6058071 Magneto-inductive submarine communications system and buoy
05/02/2000US6056695 Device for time-resolved and space-resolved location of a miniaturised emitter
04/2000
04/13/2000WO2000021203A1 A method to use acoustic signals for computer communications
04/13/2000WO2000021020A2 Card for interaction with a computer
04/04/2000USRE36643 Buoyed sensor array communications system
03/2000
03/30/2000WO2000018031A1 Method and device for developing a virtual speaker distant from the sound source
03/30/2000CA2345336A1 Method and device for developing a virtual speaker distant from the sound source
03/23/2000WO2000016309A1 Method and apparatus for coding an information signal using delay contour adjustment
03/14/2000US6037704 Ultrasonic power communication system
03/02/2000WO2000011817A2 Method for transmitting information and suitable system therefor
02/2000
02/24/2000DE19904747A1 Information transmission method e.g. underwater using digital states of reference frequency channel and information frequency channels to provide bit pattern
02/13/2000CA2280283A1 An acoustic transmission system
01/2000
01/19/2000EP0973152A2 "Parametric audio system"
01/06/2000WO2000001099A1 Transmission of data by ultrasound
01/04/2000US6011819 Acoustic wave communication apparatus and method
12/1999
12/02/1999WO1999053635A8 A manual scan imaging sonar
11/1999
11/03/1999EP0953237A1 Digital sonic and ultrasonic communications networks
11/02/1999US5978316 Marine seismic source
10/1999
10/21/1999WO1999053635A1 A manual scan imaging sonar
10/06/1999EP0947065A1 Marine seismic source
09/1999
09/22/1999CN1229542A Acoustic heterodyne device and method
09/21/1999US5956291 Underwater diving assistant apparatus
09/16/1999DE19810870A1 Electroacoustic communications system for use in connection with water supply systems
09/10/1999WO1999026221A3 Display element, control for a display element, corresponding control method in addition to a register element and registering system
07/1999
07/22/1999WO1999030266A3 Remote energy supply process and system for an electronic information carrier
07/20/1999US5926532 Mask apparatus for divers
07/14/1999EP0929163A2 Method for information transmission using sound and information transmission device
07/01/1999WO1999032858A1 Ultrasonic liquid gauging system
06/1999
06/24/1999DE19856876A1 Ultrasonic sensor for contactless detecting of objects and persons
06/17/1999WO1999030266A2 Remote energy supply process and system for an electronic information carrier
06/17/1999DE19755893A1 Anordnung und Verfahren zur Energiefernversorgung eines elektronischen Informationsträgers System and method for remote power supply of an electronic information carrier
06/10/1999WO1999029058A1 Method and apparatus for carrying out high data rate underwater communication
06/09/1999CN1219044A Sound signal receiving and transmitting method and device between vehicles or for passengers
05/1999
05/27/1999WO1999026221A2 Display element, control for a display element, corresponding control method in addition to a register element and registering system
04/1999
04/29/1999WO1999020987A1 A resonator for the acoustic transmission of information and a system utilizing same
04/14/1999EP0908019A1 Acoustic heterodyne device and method
04/08/1999WO1999017473A1 Marine seismic source
04/08/1999CA2272706A1 Marine seismic source
03/1999
03/30/1999US5889870 Acoustic heterodyne device and method
03/30/1999US5889730 Underwater audio communication system using bone conducted sound
03/02/1999US5878367 Passive acoustic traffic monitoring system
03/02/1999US5877999 Method and apparatus of interrogating a distributed undersea optical surveillance system
02/1999
02/25/1999WO1999009683A1 Underwater communication apparatus and communication network
01/1999
01/19/1999US5861018 Ultrasound transdermal communication system and method
12/1998
12/30/1998EP0886787A1 Device for time-resolved and space-resolved location of a miniaturised emitter
12/15/1998US5850372 Method of alerting sea cows of the danger of approaching motor vessels
11/1998
11/24/1998US5841735 Method and system for processing acoustic signals
10/1998
10/21/1998EP0872995A2 Apparatus and method for initiating a transaction having acoustic data receiver that filters human voice
10/20/1998US5825718 Underwater communication apparatus and underwater microphone, and closed-type sound converter
10/15/1998WO1998045969A1 Communication and alert device for underwater divers
09/1998
09/30/1998EP0867798A2 Data processing system user interface
09/30/1998CN1194402A Method and system for at the sam time operating multiple hand held controller in data processing system
09/29/1998US5815298 System and method for wirelessly communicating a sound signal
08/1998
08/25/1998US5798983 Acoustic sensor system for vehicle detection and multi-lane highway monitoring
08/12/1998EP0857378A1 Ultrasonic sound system and method for producing virtual sound
08/11/1998US5793855 Integrated wireless communication system
07/1998
07/23/1998WO1998032248A1 Signalling system
07/23/1998CA2277375A1 Signalling system
07/21/1998US5784339 Underwater location and communication system
07/07/1998US5777948 Method and apparatus for preforming mutations in a genetic algorithm-based underwater target tracking system
06/1998
06/10/1998DE19650981A1 Distance measuring method e.g. for rail vehicles
05/1998
05/26/1998US5757177 Infrasonic frequency resonant circuit and method for use thereof
04/1998
04/30/1998WO1998017526A1 Call and/or signal transmitting and receiving device for scuba divers during immersion
04/11/1998CA2216302A1 Combat harness
03/1998
03/31/1998US5734624 Wide-band omni telemetry system
03/24/1998US5732044 System and method for compensating for doppler shifts in signals by downsampling
02/1998
02/10/1998US5717657 Acoustical cavitation suppressor for flow fields
02/10/1998US5717656 Method and apparatus for detecting and locating a concealed listening device
01/1998
01/22/1998WO1998002978A1 Acoustic heterodyne device and method
01/22/1998WO1998002977A1 Acoustic mixing device and method
01/06/1998US5706251 For supplying air to a diver
12/1997
12/23/1997US5701276 Underwater communication system by means of coded pulses
12/03/1997EP0809899A1 Apparatus and methods for accessing information relating to radio and television programs
12/03/1997CN2269676Y Optical fiber transmission equipment for mobile communication direct broadcast station
11/1997
11/11/1997US5687137 Methods and apparatus for adaptive oceanographic sampling
10/1997
10/21/1997US5680135 In an aircraft
10/15/1997EP0745227A4 Sonic wave synchronizer
09/1997
09/18/1997WO1997034163A1 Device for time-resolved and space-resolved location of a miniaturised emitter
09/16/1997US5668778 Method for detecting acoustic signals from an underwater source
09/09/1997US5666327 Portable acoustic turbulence detector
09/02/1997US5663927 Buoyed sensor array communications system
08/1997
08/28/1997WO1997031437A1 Digital sonic and ultrasonic communications networks
08/28/1997CA2248839A1 Digital sonic and ultrasonic communications networks
08/26/1997US5661699 Acoustic communication system
08/06/1997CN1035589C Integrated diver face mask and ultrasound underwater voice communication apparatus
07/1997
07/24/1997WO1997026551A1 Underwater communications
06/1997
06/26/1997DE19609564C1 Ultrasonic communication system for location of diagnostic capsule
06/03/1997US5636182 Portable ultrasonic underwater sensor
01/1997
01/15/1997EP0753825A1 Ultrasonic pointing type wireless controller
01/14/1997US5594705 Acoustic transformer with non-piezoelectric core
12/1996
12/17/1996US5586176 Mask apparatus for divers
12/12/1996WO1996039754A1 Ultrasonic sound system and method for producing virtual sound
12/04/1996EP0745227A1 Sonic wave synchronizer
12/03/1996USH1619 Frequency-modulated monitor hydrophone system
11/1996
11/26/1996US5579284 Scuba diving voice and communication system using bone conducted sound
11/13/1996EP0741940A1 Method and apparatus for underwater communication
11/05/1996US5572485 Underwater acoustic transmission method and equipment to improve the intelligibility of such transmissions
10/1996
10/22/1996US5568450 System and processor for real-time extraction of ocean bottom properties
10/22/1996US5568448 System for transmitting a signal
10/15/1996US5566133 System and method of binary optical communication for ultrasonic probe
1 ... 3 4 5 6 7 8 9 10 11 12 13 14 15 16