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WO/2005/081433A1 |
The invention relates to a method for transmitting data, whereby all necessary information is transmitted on the basis of a global scaling modulation and demodulation by random processes, by carrying out a modulation, coupling or decoupl...
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WO/2005/074170A1 |
The invention relates to radio engineering and can be used for carrying out wireless communications by means of nonelectromagnetic fields. The inventive method consists in supplying a voltage, converted into a nonelectromagnetic field an...
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WO/2005/069247A1 |
An underwater optical communications system and method particularly suitable for use in communications with automated equipment. A series of light beacons are dispersed throughout a communications zone. The light beacons are each provide...
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WO/2005/060131A1 |
A reactance adjustment device includes: an electrode (123) for inducing an electric field in an electric field transmission medium (121); a resonator (7) for adjusting the reactance value; and adjustment signal generator (13) for alterna...
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WO/2005/055442A2 |
An underwater communications method and apparatus is provided for demodulating communications signals while compensating for the effects of range rate, i.e., relative velocity between the nodes of the communication system. The method of ...
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WO/2005/043199A2 |
In accordance with the present invention, a land-based cable station (100) is provided for an undersea optical transmission system. The cable station (100) includes submarine line terminal equipment (SL TE) for processing terrestrial tra...
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WO/2005/034393A1 |
The invention relates to a hands free system for controlling a motor vehicle operations comprising at least one badge (4) and to a control system (6) for access to a motor vehicle which exchange data therebetween for controlling actuator...
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WO/2005/015789A1 |
A system for sensing and communicating in a pipeline that contains a fluid. An acoustic signal containing information about a property of the fluid is produced in the pipeline. The signal is transmitted through the pipeline. The signal i...
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WO/2005/002096A1 |
When a human hand (100) holds a transceiver (3a), the hand holds it at an outer wall face bottom portion and outer wall face side-portions of an insulation case (33). Accordingly, the transceiver is constructed such that the outer wall f...
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WO/2005/002066A2 |
A method and apparatus for effective through-the-earth communication involves a signal input device connected to a transmitter operating at a predetermined frequency sufficiently low to effectively penetrate useful distances through-the ...
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WO/2004/114556A1 |
A communication unit (100) in which a ground layer part (101) and a power supply layer part (102), in the form of a sheet-like conductor, are arranged while facing one sides each other, a voltage is applied to the ground layer part (101)...
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WO/2004/114557A1 |
A communication unit (100) in which a ground layer part (101) and a power supply layer part (102), in the form of a sheet-like conductor, are arranged while facing one sides each other, a voltage is applied to the ground layer part (101)...
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WO/2004/095741A1 |
Disclosed is a device for transmitting and receiving sound waves propagating in the water. Said device comprises an electro-acoustic transducer (10) and an electrical separating filter (11) for impressing an electrical transmit signal on...
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WO/2004/095742A2 |
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WO/2004/077705A1 |
Flexibility of communication using a quasi-electrostatic field is improved. In a walking quasi-electrostatic field (HSE) formed, around the human body, due to a walking activity thereof, the human body is caused to serve as an antenna to...
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WO/2004/068748A1 |
The present invention provides method and system for data communication in the human body and a sensor therefor. The method and system transmit information through the human body to a receiver located outside the human body using low cur...
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WO/2004/036784A1 |
Disclosed is an information transmission system comprising a transmitter (1) which capacitively and asymmetrically couples an electric near field into an electrical conductor element (6). Said conductor element (6) is made of an essentia...
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WO/2004/036236A2 |
A system (100) and method for identifying a presence of a creature (140) disposed in water (135). This system includes a transducer (105) for receiving at least one vibrational wave and generating at least one transformed signal responsi...
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WO/2004/023683A2 |
Provision of a new communication device that uses pneumatronic waves as transmission medium, taking advantage of the characteristics of responsive materials such as ceramics. The space communication device contains a transmission means t...
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WO/2004/019501A2 |
Systems and methods are described for transmitting a waveform having a controllable attenuation and propagation velocity. An exemplary method comprises: generating an exponential waveform, the exponential waveform (a) being characterized...
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WO/2004/010651A1 |
A communication control device CCUn built in a unit type tile carpet CPn has a function for performing communication with a communication terminal TRX and a function for performing cable communication with a communication control device ...
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WO/2004/010618A1 |
An electric-field irradiated by a different electric-field communication device reaches an electric-field sensor (ES) via a main electrode (ERB) on a receiving side. The electric-field sensor (ES) outputs, based on a variation of the rec...
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WO/2004/003329A2 |
The present invention includes an apparatus and method for telemetry communication with oil-well monitoring and recording instruments located in the vicinity of the bottom of gas or oil recovery pipes. Such instruments are currently moni...
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WO/2003/101536A1 |
A low-power implant system. The system includes an implant for implantation into a person, such as a cochlear implant or a middle ear plant. The implant is capable of communicating with a device via transmission of ultra wideband pulses....
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WO/2003/101013A1 |
The invention provides systems and methods enabling high fidelity quantum communication over long communication channels even in the presence of significant loss in the channels comprising laser manipulation of quantum correlated atomic ...
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WO/2003/098341A1 |
Non-linear optical characteristics of a carbon nanotube are applied to an optical communication field. A light transmitting medium (12) obtained by incorporating a carbon nanotube having optically non-linear characteristics into a non-li...
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WO2003017538A9 |
An apparatus and method for the fiber optic sensing of an amplified signal using Stimulated Raman Scattering in a wellbore. The apparatus includes a fiber optic communication medium extending from a well head of the wellbore to a downhol...
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WO/2003/096073A1 |
A method and system for data transmission where data is encoded in a number of messenger modules (90) that are physically transported by a natural or artifically created fluid flow (88) or in a slurry from one location (94) to one or mor...
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WO/2003/088511A1 |
The present invention discloses a double TRU (Transceiver Unit) (45). The output signals from the power amplifiers (64, 84) are combined to one common output signal provided to an antenna arrangement (91). A DSP (Digital Signal Processor...
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WO/2003/056727A1 |
The present invention relates to a kind of water acoustic coherently communication system and signal processing method having high code rate, low probability of error The present invent relate to a kind of water acoustic coherently commu...
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WO/2002/102102A1 |
A network has a plurality of antennas (12) RF or optically coupled over the network to a plurality of base stations (14). The base stations are configured to provide cellular transmission. At least a portion of the plurality of base stat...
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WO/2002/082692A1 |
The invention refers to a method and equipment for guided transmission of information through fluid media and/or plasma using electromagnetic radiation, electromagnetic radiation that belongs to the spectral domain from far infrared to g...
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WO/2002/082696A2 |
For digital underwater transmission an information sequence (17) of digital bits is partitioned into a succession of symbols each comprising n bits where n is equal to or greater than one (2?n� potential symbols), each symbol (19) is r...
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WO/2002/082695A2 |
In a digital acoustic transmission device in which a digital information sequence (31) is electrically modulated (22) on a carrier cos $g(v)t, the modulated carrier (23) is prefaced with at least two pulse signals (24) of known timing re...
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WO/2002/078220A1 |
The invention concerns a data transmission method in an acoustic and/or microwave radio system. The invention is characterised in that each time the station receives or generates data messages, it carries out the following steps: if it i...
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WO/2002/069530A1 |
A signal transmission device capable of transferring information when a liquid is poured. The container body (201) of a transmitter container (20) holds a conductive liquid (402). The container body (211) of a receiver container (21) has...
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WO/2002/067104A1 |
An information input device for inputting information into an information device carried by the user by using a near electromagnetic field. The key code (output of a processor (2)) generated by a key-in of a keyboard (12) is frequency-mo...
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WO/2002/061958A2 |
The array (14) is made up as a ladder structure in which the airguns (30) are disposed horizontally between vertical support and umbilical lines (27 & 29), with their discharge ports in laterally offset relationship to minimize undesirab...
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WO/2002/054110A1 |
A subsea navigation system comprising a plurality of spaced antenna means (4) provided on a subsea structure (1, 2) arranged to emit electromagnetic radiation. A detection means (7) is provided on a subsea vehicle (3) for receiving and a...
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WO/2002/054635A1 |
Methods of subsea communication in which a cathodic protection anode (13) is used as a transmitting antenna. The signals are received at a second location by means of two electrodes (22, 23, 32, 33) which are spaced by different distance...
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WO/2002/046859A2 |
A low-power, short-range communications system (Figure 1) is disclosed. The communications system comprises a transmitter that is operative to generate a high impedance signal and a receiver that is operative to detect the high impedance...
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WO/2001/095529A1 |
An underwater communications system comprises a first and second communication station (1, 7) each of which is provided with an aerial (5, 8) which is surrounded by a waterproof, electrically insulating material (15). When the aerials ar...
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WO/2001/089014A1 |
This invention relates to fuel cells, and in one embodiment, to fuel cells (10) that are especially well suited for downhole use in oil and gas wells (200), and for subsea use in connection with offshore wells.
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WO/2001/067628A2 |
Methods for driving a lossy transmission media with an energy wave defined by a an exponential waveform function. The propagation delay and attenuation of the wave is a function of an exponential coefficient, and its propagation velocity...
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WO/2001/055555A1 |
A current impedance device in the form of a ferromagnetic choke in a petroleum well where a voltage potential is developed across the choke to power and communicate with devices and sensors in the well. The petroleum well includes a case...
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WO/2001/033662A1 |
An electromagnetic antenna extension assembly for connection downhole into a pipe string between a data transmission unit and an electromagnetic antenna. Further, a method for connecting the data transmission unit with the antenna utiliz...
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WO/2001/018763A2 |
The invention relates to a method and a device for the transmission of control and/or sensor signals between an electronic control and/or data receiving device (21) and a pneumatic device (10), which are connected to one another by a pne...
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WO/2001/011807A1 |
A synchronized communication system for communicating signals into and from a medium is disclosed. The communication system utilizes a transmitter located at a central station external to the medium, which transmits a low frequency synch...
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WO/2000/060777A1 |
A data communication system is provided for communicating with an underground instrument package positioned on a drilling apparatus. The drilling apparatus has an insulated section between first and second conductive sections. The system...
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WO/2000/015931A1 |
The invention relates to an electronic communications system for a vehicle comprising a base station (1) arranged in the vehicle, and has at least one movable data carrier (2) configured for exchanging data signals with the base station....
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