| Patents for H04B 13 - Transmission systems characterised by the medium used for transmission, not provided for in groups (1,959) |
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| 07/19/2006 | EP1680877A2 Cable station for an undersea optical transmission system |
| 07/19/2006 | EP1166476B1 Method and apparatus for data communication with an underground instrument package |
| 07/18/2006 | US7079811 Dual mode bluetooth/wireless device with power conservation features |
| 07/13/2006 | WO2006072357A1 Method for the transmission of messages |
| 07/13/2006 | US20060154709 Two-wire transmitter |
| 07/13/2006 | US20060153109 Electric-field communication system, electric-field communication device, and electrode disposing method |
| 07/11/2006 | CA2262916C Subsea template electromagnetic telemetry |
| 07/06/2006 | US20060148514 Through-the-earth radio |
| 07/04/2006 | US7069998 Fuel cell for downhole and subsea power systems |
| 06/27/2006 | US7069062 Transceiver capable of causing series resonance with parasitic capacitance |
| 06/22/2006 | WO2006063818A2 Circuit and method for generating a current pulse in a waveguide |
| 06/15/2006 | WO2006062112A1 Information transmission through-human-body system and transmitter/receiver |
| 06/08/2006 | WO2006059684A1 Transmitter, field communication transceiver, and field communication system |
| 06/08/2006 | WO2006059454A1 Information processing apparatus |
| 06/06/2006 | US7055592 Toroidal choke inductor for wireless communication and control |
| 05/26/2006 | WO2006054706A1 Data communication apparatus |
| 05/09/2006 | US7043204 Through-the-earth radio |
| 04/13/2006 | WO2006038434A1 Working condition detection device |
| 04/13/2006 | US20060077172 Communications unit, communications facility, management device, communication system, and electric field communication device |
| 04/12/2006 | EP1646156A1 Information transmission system using electrical near field |
| 04/12/2006 | CN1251423C 井下无线通信系统 Underground wireless communication system |
| 04/05/2006 | EP1354432B1 Data transmission in pipeline systems |
| 03/29/2006 | CN1754331A Communication system, communication method and communication apparatus |
| 03/29/2006 | CN1754330A Communication system |
| 03/23/2006 | US20060063488 Asymmetric information transmission system using an electric near field |
| 03/22/2006 | EP1636972A2 Through-the-earth radio |
| 03/22/2006 | CN1751463A Reactance adjustment device, transceiver and transmission device using the same, signal processing circuit suitable for them, reactance adjustment method, transmission method, and reception method |
| 03/21/2006 | CA2318485C Bore hole transmission system using impedance modulation |
| 03/16/2006 | DE102004044375A1 Vorrichtung zum Ver- und/oder Entriegeln einer Fahrzeugtür mit einem elektronischen Zugangsberechtigungssystem Device for locking and / or unlocking a vehicle door with an electronic access system |
| 03/15/2006 | EP1635491A1 Communication unit |
| 03/15/2006 | EP1635490A1 Communication unit |
| 03/09/2006 | US20060052074 Reactance adjustment device, transceiver and transmission device using the same, signal processing circuit suitable for them, reactance adjustment method, transmission method, and reception method |
| 03/01/2006 | CN1742448A Method and system for data communication in human body and sensor therefor |
| 02/28/2006 | US7006407 Communication system for underwater use |
| 02/14/2006 | US6999685 Polarized light communication device, transmitter, laser, polarized light communication device for physiological use, reflected light detector and pulse wave detecting device |
| 02/09/2006 | DE102004030934B3 Anordnung zur optischen Datenübertragung Arrangement for Optical Data Transmission |
| 02/07/2006 | US6995899 Fiber optic amplifier for oilfield applications |
| 02/07/2006 | CA2341461C Method for transmitting information and suitable system therefor |
| 02/02/2006 | WO2006010686A1 Vehicle-access device which uses a current passing through the body |
| 02/02/2006 | DE102004028390A1 Data transmitting method for use within vehicles e.g. goods trains, involves transmitting data using electromagnetic waves over pneumatic and hydraulic lines in vehicles of vehicle assembly |
| 01/31/2006 | US6992565 Electronic communications system |
| 01/24/2006 | US6989755 Signal transmission device and method |
| 01/18/2006 | EP1616399A1 Device for transmitting and receiving sound waves |
| 12/29/2005 | WO2005002066A3 Through-the-earth radio |
| 12/27/2005 | US6980487 Underwater communication system |
| 12/22/2005 | US20050283207 Low power signal transmission |
| 12/20/2005 | US6977921 Using discrete message-oriented services to deliver short audio communications |
| 12/15/2005 | WO2005119946A1 Radio communication system |
| 12/06/2005 | US6972690 System and method for transmission of electrical signals in imperfectly-conducting media |
| 11/30/2005 | CN1229567C Choke inductor for wireless communication and control in a well, and arrangement method in pipeline |
| 11/23/2005 | EP1598964A1 Communication system, communication method and communication apparatus |
| 11/23/2005 | CN1701544A Electric field-detecting optical device, tranceiver, positional information-acquiring system, and information input system |
| 11/17/2005 | WO2005109699A1 Free-hands access and control system for a motor vehicle functions |
| 11/17/2005 | US20050254760 Light tranmitting medium |
| 11/16/2005 | CN1227843C Polarized light communication system for organism |
| 11/09/2005 | EP1593214A1 Method and system for data communication in human body and sensor therefor |
| 11/03/2005 | US20050244166 Electric field-detecting optical device, tranceiver, positional information-acquiring system, and information input system |
| 10/25/2005 | US6958704 Permanent downhole, wireless, two-way telemetry backbone using redundant repeaters |
| 10/20/2005 | WO2005043199A3 Cable station for an undersea optical transmission system |
| 10/20/2005 | US20050232638 Methods and apparatus for underwater wireless optical communication |
| 10/19/2005 | EP1587226A1 Reactance adjustment device, transceiver and transmission device using the same, signal processing circuit suitable for them, reactance adjustment method, transmission method, and reception method |
| 10/12/2005 | CN1682495A Communication unit, communication facility, management device, communication system, and electric field communication device |
| 10/12/2005 | CN1682473A Electric-field communication system, electric-field communication device, and electrode disposing method |
| 10/05/2005 | EP0936762B9 Polarized light communication device |
| 09/29/2005 | WO2005089225A2 Underwater data communication and instrument release management system |
| 09/29/2005 | US20050215206 Multimodulation transmitter |
| 09/29/2005 | US20050213684 Methods for propagating a non sinusoidal signal without distortion in dispersive lossy media |
| 09/29/2005 | US20050213649 Underwater data communication and instrument release management system |
| 09/15/2005 | US20050201323 Method and apparatus for multiplexing in a wireless communication infrastructure |
| 09/14/2005 | EP1575198A2 Contemplation wave communication device |
| 09/08/2005 | DE102004008444A1 Verfahren und Einrichtung zur drahtlosen Datenübertragung Method and apparatus for wireless data transmission |
| 09/01/2005 | WO2005081433A1 Method and device for wireless data transmission |
| 08/17/2005 | EP1564917A1 Electric field-detecting optical device, tranceiver, positional information-acquiring system, and information input system |
| 08/11/2005 | WO2005074170A1 Wireless communications method |
| 08/10/2005 | EP0936762B1 Polarized light communication device |
| 08/09/2005 | US6928030 Seismic defense system |
| 07/28/2005 | WO2005069247A1 Underwater optical communications system and method |
| 07/27/2005 | CN1647397A Multimodulation transmitter |
| 07/20/2005 | EP1252416B1 Choke inductor for wireless communication and control in a well |
| 07/16/2005 | CA2455284A1 Underwater optical communications system and method |
| 07/13/2005 | CN1639626A Light tranmitting medium |
| 07/07/2005 | US20050147067 Method and apparatus for multiplexing in a wireless communication infrastructure |
| 07/06/2005 | EP1550236A1 Asymmetric information transmission system using an electric near field |
| 06/30/2005 | WO2005060131A1 Reactance adjustment device, transceiver and transmission device using the same, signal processing circuit suitable for them, reactance adjustment method, transmission method, and reception method |
| 06/21/2005 | US6909669 Scour detection and monitoring apparatus adapted for use in lossy soils and method of employment thereof |
| 06/16/2005 | WO2005055442A2 High range rate signaling |
| 06/16/2005 | US20050127313 System and method for filtering reflected infrared signals |
| 06/15/2005 | EP1540844A2 Methods for transmitting a waveform having a controllable attenuation and propagation velocity |
| 05/26/2005 | US20050111588 High range rate signaling |
| 05/25/2005 | EP1533922A1 Electric-field communication system, electric-field communication device, and electrode disposing method |
| 05/25/2005 | EP1105986B1 Method for transmitting information and suitable system therefor |
| 05/12/2005 | WO2005043199A2 Cable station for an undersea optical transmission system |
| 05/12/2005 | CA2544388A1 Cable station for an undersea optical transmission system |
| 05/05/2005 | US20050097220 Radiographer support system |
| 05/05/2005 | US20050095006 Cable station for an undersea optical transmission system |
| 04/28/2005 | US20050088916 Water acoustic coherently communication system and signal processing method having high code rate, low probability of error |
| 04/27/2005 | EP1526390A1 Radiographer support system |
| 04/27/2005 | CN1610280A Radiographer support system |
| 04/14/2005 | WO2005034393A1 System for hands free access and for controlling a motor vehicle operations |
| 04/13/2005 | EP1523128A1 Communication unit, communication facility, management device, communication system, and electric field communication device |