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)
10/2003
10/29/2003EP1266467B1 Installation with piezoelectric element for equipping a structure and piezoelectric element for same
10/28/2003US6639872 Remote energy supply process and system for an electronic information carrier
10/23/2003WO2003087868A2 Ultrasonic transceiver identification tag
10/22/2003CN1450967A Apparatus for deploying load to underwater targt position with enhanced accuracy and method to control such apparatus
10/16/2003WO2003003625A3 Wireless communication device and method
10/16/2003US20030193839 Sonic data communications for small electronic devices
10/14/2003CA2261108C Acoustic heterodyne device and method
10/09/2003WO2003084104A1 Calibration of a multichannel receiver
10/09/2003WO2003084081A2 Underwater communication device
10/09/2003US20030189488 Ultrasonic transmitter and receiver systems and products using the same
10/09/2003DE19931386C2 Anordnung zum Empfang von Signalen bei parametrischer Sendung zur Echolotung des Bodens, von Sedimentschichten und von Objekten am und im Boden sowie zur Unterwassernachrichtenübertragung Means for receiving signals in parametric mission of echo sounding of the soil, sediment layers and objects on and in the soil as well as for underwater communication
10/02/2003US20030186655 System and method for communication via medium
10/02/2003US20030185102 Underwater communication device
10/01/2003CN1122954C Method and device for transmitting control and/or sensor signals
09/2003
09/30/2003US6628724 Process and system for information transfer
09/25/2003WO2003079572A1 Parametric loudspeaker system for pre-encoded signal playback
09/25/2003US20030179652 Controlled thruster driven profiler for coastal waters
09/23/2003US6625084 System for acoustically passing electrical signals through a hull
09/17/2003EP1344338A2 Method for acoustic signal transmission to biological beings
09/04/2003WO2002047295A3 Method for supplying persons with updated, location-dependent information by means of acoustic and/or optical information
08/2003
08/21/2003US20030158479 Automatic ultrasound transmit power setting method and system
08/20/2003CN1437425A Radio earphone assembly of mobile phone
08/19/2003US6607136 Physical presence digital authentication system
07/2003
07/31/2003WO2003009499A3 Listening/anti eavesdropping device
07/31/2003WO2002048991A3 Method for determining current location-specific information of individuals, transmitting-receiving system, and receiver for carrying out the method
06/2003
06/26/2003WO2003052743A1 Information transmitting system, information encoder and information decoder
06/26/2003US20030117987 Conveying information to a communication device using sonic representations
06/26/2003US20030117896 Acoustic communication device and acoustic signal communication method
06/10/2003US6577738 Parametric virtual speaker and surround-sound system
05/2003
05/30/2003WO2003044422A1 Transmitting-receiving unit and sensor device
05/07/2003EP1307760A1 Navigating acoustic device for skin diving
05/07/2003EP1005723B1 Underwater communication apparatus and communication network
05/02/2003EP1306991A1 Conveying information to a communication device using sonic representations
04/2003
04/16/2003CN1411165A Improved infrared ray and ultrasonic wave receiver
04/16/2003CN1411164A Apparatus capable of regulating ultrasonic wave and infrared ray carrier frequency
04/09/2003CN1409496A Method for electric power line carrier communication
03/2003
03/26/2003EP1092291B1 Transmission of data by ultrasound
03/25/2003US6536275 Ultrasonic transducer for liquid measurement
02/2003
02/27/2003WO2002082696A3 Communication system for underwater use
02/27/2003WO2002082695A3 Underwater communication system
02/27/2003US20030039370 Method and apparatus for eliminating audio feedback
02/13/2003WO2002049244A3 Method for acoustic signal transmission to biological beings
02/12/2003CN2535975Y Audio-frequency receiver
02/12/2003CN1396726A Sound controlled finder for remote controller
01/2003
01/30/2003WO2003009499A2 Listening/anti eavesdropping device
01/28/2003US6512720 Underwater telemetry method using doppler compensation
01/09/2003WO2003003625A2 Wireless communication device and method
01/03/2003WO2003001231A2 Interferometric imaging method apparatus and system
01/02/2003US20030003866 Wireless communication device and method
12/2002
12/18/2002EP1266467A1 Installation with piezoelectric element for equipping a structure and piezoelectric element for same
12/18/2002EP1265785A1 Apparatus for deploying a load to an underwater target position with enhanced accuracy and a method to control such apparatus
12/12/2002WO2002048991A9 Method for determining current location-specific information of individuals, transmitting-receiving system, and receiver for carrying out the method
11/2002
11/28/2002US20020176323 Underwater alert system
11/21/2002WO2002093773A1 Parametric virtual speaker and surround-sound system
11/21/2002CA2446645A1 Parametric virtual speaker and surround-sound system
11/20/2002CN1380760A Method and system for access wide area computer network information and/or data
11/06/2002EP1254464A1 Connection system for submarine acoustic antenna
10/2002
10/29/2002US6473364 High frequency acoustic float for the versatile mine system
10/24/2002US20020154572 Subsea communication system and technique
10/23/2002EP1251648A1 Signalling system
10/17/2002WO2002082696A2 Communication system for underwater use
10/17/2002WO2002082695A2 Underwater communication system
10/17/2002US20020152314 Method and system for accessing information and/or data available on a wide area computer network
10/15/2002US6466674 Method and apparatus for eliminating audio feedback
10/15/2002US6463950 Method and device for the transmission of control and/or sensor signals
10/09/2002EP1247589A1 System and method for accessing information and/or data available on the Internet
10/09/2002EP1247350A1 Parametric audio system
10/09/2002CN1373864A System for autoamtically setting portable object with clock function
10/06/2002CA2380796A1 Method and system for accessing information and/or data available on a wide area computer network
10/03/2002WO2002078220A1 Data transmission method in an acoustic and/or microwave radio system
09/2002
09/04/2002CN1367962A Sound communication system between portable unit and communication terminal
08/2002
08/28/2002EP1010269B1 Signalling system, -apparatus and -method.
08/27/2002US6442105 Acoustic transmission system
08/15/2002US20020111795 System for playback of pre-encoded signals through a parametric loudspeaker system
08/15/2002US20020111141 Communication method and system using elastic wave
08/14/2002CN1364002A Passive wireless ASW muti-sensor system and its frequency-division recognition method
07/2002
07/30/2002US6426919 Portable and hand-held device for making humanly audible sounds responsive to the detecting of ultrasonic sounds
07/23/2002CA2181052C Method and apparatus for underwater communication
07/17/2002EP0947065A4 Marine seismic source
07/11/2002DE10061507A1 Verfahren zur aktuellen, standortbezogenen Information von Personen durch akustische und/oder optische Informationen Method for current location-based information by persons by audible and / or visual information
07/04/2002US20020085451 Portable and hand-held device for making humanly audible sounds responsive to the detecting of ultrasonic sounds
06/2002
06/25/2002US6411566 System and method for processing an underwater acoustic signal by identifying nonlinearity in the underwater acoustic signal
06/25/2002US6411565 Multi-use torpedo dispensed single mode optical fiber
06/20/2002WO2002049244A2 Method for acoustic signal transmission to biological beings
06/20/2002WO2002048991A2 Method for determining current location-specific information of individuals, transmitting-receiving system, and receiver for carrying out the method
06/13/2002WO2002047295A2 Method for supplying persons with updated, location-dependent information by means of acoustic and/or optical information
06/13/2002US20020071344 Integrated circuit receiver available for infrared or ultrasonic transmission with digital filtering
06/11/2002CA2232316C Apparatus and method for initiating a transaction having acoustic data receiver that filters human voice
06/06/2002US20020067531 Ultrasonic and infrared transmitter with tunable carrier frequency
05/2002
05/23/2002WO2001057620A3 Physical presence digital authentication system (transmission and routine)
05/22/2002EP1206856A1 Sound communication system between a portable unit and a communication terminal
05/22/2002EP1206729A1 System for automatically setting a portable object with a clock function
05/21/2002US6392960 Acoustic communication of coded multi-channel digital messages in a liquid medium
05/15/2002EP1205045A1 Acoustic communication system
05/02/2002WO2001057625A3 Physical presence digital authentication system (device-to-device)
04/2002
04/25/2002WO2001058175A3 Physical presence digital authentication system (broadcast media)
04/18/2002WO2001057619A3 Physical presence digital authentication system
04/18/2002US20020044645 Method and apparatus to increase acoustic separation
04/02/2002US6366534 Underwater high energy acoustic communications device
04/02/2002US6366533 Underwater reconnaissance and surveillance system
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