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Patent Searching and Data


Matches 601 - 650 out of 2,581

Document Document Title
WO2005002066A3
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 ...  
WO/2005/119946A1
[PROBLEMS] To solve the problems of radio communication that communication is blocked off by a person or an obstacle, the communication speed is slow, and the distance where communication is enabled is too short. [MEANS FOR SOLVING PROBL...  
WO/2005/109699A1
The invention relates to a free-hands system for controlling motor vehicle functions comprising at least one badge (4) and a monitoring system (6) mounted in the vehicle which exchange data for controlling actuators (40) in order to actu...  
WO2005043199A3
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...  
WO/2005/089225A2
A data communications and underwater release management system for acquiring data from remote positively buoyant instrumentation packages (90) moored underwater through the use of an intervening mechanical release (10) coupled at one end...  
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...  
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...  
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...  
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...  
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 ...  
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...  
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...  
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...  
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...  
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 ...  
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)...  
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)...  
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...  
WO/2004/095742A2  
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...  
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...  
WO2004003329A3
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...  
WO2004019501A3
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...  
WO2004036236A3
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...  
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...  
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...  
WO/2004/023683A2  
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...  
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 ...  
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...  
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...  
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....  
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 ...  
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...  
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...  
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...  
WO2002061958A8
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...  
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...  
WO2001067628A3
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...  
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...  
WO2002082696A3
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 potential symbols), each symbol (19) is replac...  
WO2002082695A3
In a digital acoustic transmission device in which a digital information sequence (31) is electrically modulated (22) on a carrier cos omega t, the modulated carrier (23) is prefaced with at least two pulse signals (24) of known timing r...  
WO/2003/017538A1
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...  
WO2002061958A3
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...  
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...  
WO2002046859A3
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...  
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...  
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...  
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...  
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...  

Matches 601 - 650 out of 2,581