Patent application number | Description | Published |
20110032973 | RADIO COMMUNICATION SYSTEM AND TRANSMITTING APPARATUS USED FOR THE SAME - To provide a system that can accommodate a greater number of terminals within a limited band and can obtain a higher transmission rate. While the number of frequency signals (spectrums) output in parallel by performing a spread spectrum from the DFT unit of each terminal is 12, the number of sub-carriers constituting one sub-channel is set at 10 or 11. In this case, the users (users A and G) allocated to the sub-channels at both ends of the band will not perform transmission of one frequency signal at the end (one sub-carrier) of all the frequency signals output from the DFT unit, whereas the users (users B to F) allocated to the other sub-channels will not perform transmission of the frequency signals at the ends (two sub-carriers). This transmission can be realized by deleting (clipping) the associated number of signals from both ends or from one end of the frequency signals output from the DFT unit of each terminal and allocating the frequency signals after clipping, to individual sub-channels. | 02-10-2011 |
20110044377 | RADIO COMMUNICATION SYSTEM, TRANSMISSION DEVICE, RECEPTION DEVICE, AND COMMUNICATION METHOD - A clipping rate is controlled in spectrum shaping according to a propagation path to thereby improve transmission characteristics and perform communication at a stable transmission rate. | 02-24-2011 |
20110212743 | RADIO COMMUNICATION SYSTEM, RADIO COMMUNICATION METHOD, RADIO COMMUNICATION DEVICE, RECEPTION DEVICE, AND PROGRAM - Each of first radio communication devices includes; a frequency spread unit which spreads frequency of a transmitted signal to generate a frequency-spread signal; and a mapping unit which allocates the frequency-spread signal to a subcarrier according to the mapping information which specifies a subcarrier. A second radio communication device includes: a demapping unit which extracts from a received signal a signal of the subcarrier specified by the mapping information; and an inverse frequency spread unit which inverse-frequency-spreads the extracted signal. The first radio communication device or the second radio communication device includes a use subcarrier decision unit that decides a subcarrier to which the frequency-spread-signal is allocated according to a communication path capacity of each subcarrier of each antenna used for transmission by the first radio communication devices and generates mapping information used to specify the decided subcarrier. | 09-01-2011 |
20110320920 | CODING APPARATUS, RECEIVING APPARATUS, WIRELESS COMMUNICATION SYSTEM, PUNCTURING PATTERN SELECTING METHOD AND PROGRAM THEREOF - By controlling to select encoding appropriately considering characteristics of equalization and decoding of a receiving apparatus employing a turbo equalization technology, it is possible to attain a high transmission characteristic. Information bits of two systems including a sequence which is input to a first RSC encoding unit | 12-29-2011 |
20120057543 | WIRELESS COMMUNICATION SYSTEM, RECEPTION APPARATUS, TRANSMISSION APPARATUS, COMMUNICATION METHOD OF WIRELESS COMMUNICATION SYSTEM, CONTROL PROGRAM, AND AUTONOMOUS DISTRIBUTED NETWORK - Based on a data signal and a known reference signal, a frequency response of a channel is predicted, and the state of the channel over the entire transmission band is predicted such that frequency allocation is performed in a short period of time. A reception apparatus that receives a signal from a transmission apparatus which distributedly arranges signals in a frequency domain into a plurality of frequencies and which performs wireless transmission, the reception apparatus including: a channel property prediction unit ( | 03-08-2012 |
20120096336 | Transmission Apparatus Reception Apparatus and Communication System - To improve performance of a decoder even in a system with the coder configuration determined by inserting a doping bit sequence known between a transmission apparatus and a reception apparatus in an information bit sequence to transmit, the transmission apparatus is a transmission apparatus that transmits radio signals to the reception apparatus, and is provided with a doping section | 04-19-2012 |
20140086186 | RADIO TRANSMISSION DEVICE, CONTROL DEVICE, RADIO COMMUNICATION SYSTEM, AND COMMUNICATION METHOD - A radio communication system converts a time domain signal into a plurality of frequency signals to be allocated onto a plurality of subcarriers to be transmitted. The radio communication system changes a method of allocating the plurality of frequency signals onto the plurality of subcarriers based on transmission power information. | 03-27-2014 |
20140185594 | RADIO COMMUNICATION SYSTEM, RADIO COMMUNICATION METHOD, RADIO COMMUNICATION DEVICE, RECEPTION DEVICE, AND PROGRAM - A communication device comprising a transmission unit and a reception unit. The transmission unit is configured to transmit, to a first communication device, first information indicating a first set of subcarriers comprising of a plurality of subcarriers, and to a second communication device, second information indicating a second set of subcarriers comprising of a plurality of subcarriers. The reception unit is configured to receive a first Discrete Fourier Transform-spread-OFDM (DFT-S-OFDM) signal from the first communication device using the first information and a second Discrete Fourier Transform-spread-OFDM (DFT-S-OFDM) signal from the second communication device using the second information. Also, in the communication device, a portion of the second set of subcarriers can overlap with at least a portion of the first set of subcarriers in a time frame of a plurality of time frames. | 07-03-2014 |
Patent application number | Description | Published |
20090087704 | FUEL CELL UNIT AND ELECTRONIC DEVICE - Disclosed is a fuel cell unit including a power generation cell having a first electrode and a second electrode, which generates electric power by using a first material supplied to the first electrode and a second material supplied to the second electrode, a heating unit to heat the power generation cell and a power collecting unit to take out electric power generated by the power generation cell from the first electrode or the second electrode, and the heating unit is provided at the power collecting unit. | 04-02-2009 |
20090270736 | CAPSULE-TYPE MEDICAL APPARATUS - A capsule-type medical apparatus includes a capsule to be introduced into a tubular body cavity, and a string member that extends from one end of the capsule and is able to be pulled when the capsule is pulled. The capsule is provided with a shunting section for shunting blocking substances that impede the movement of the capsule when the string member is pulled to pull the capsule | 10-29-2009 |
20090274959 | ENCLOSED NICKEL-ZINC PRIMARY BATTERY, ITS ANODE AND PRODUCTION METHODS FOR THEM - A high-capacity enclosed nickel-zinc primary battery excellent in characteristics such as capacity maintenance factor, energy density, and high-efficient discharge characteristics, an anode using it, and a production method for them. An enclosed nickel-zinc primary battery which uses as an anode an anode active material of nickel hydroxide compound, such as nickel oxyhydroxide, particles and uses zinc alloy gel as a cathode material, wherein a ratio of anode theoretical capacity to cathode theoretical capacity is 1.0-1.6, and a ratio of alkali electrolyte to anode theoretical capacity is 1.0-1.6 ml/Ah. | 11-05-2009 |
20100013949 | EYEBALL PARAMETER ESTIMATING DEVICE AND METHOD - A head posture estimating unit estimates, from a face image of a person photographed by a camera, a head posture of the person in a camera coordinate system. A head coordinate system eyeball central position candidate setting unit sets candidates of an eyeball central position in a head coordinate system based on two-point eyeball feature coordinates expressed in the head coordinate system. A camera coordinate system eyeball central position calculating unit calculates an eyeball central position ({right arrow over (a)}) in the camera coordinate system based on the head posture resulting from the estimating of the head posture estimating unit, the candidates of the eyeball central position set by the head coordinate system eyeball central position candidate setting unit, and a pupil central position detected from the face image. An eyeball parameter estimating unit estimates an eyeball central position (O) and an eyeball radius (r) in the head coordinate system based on the eyeball central position ({right arrow over (a)}) in the camera coordinate system. | 01-21-2010 |
20100254595 | GRAPHIC RECOGNITION DEVICE, GRAPHIC RECOGNITION METHOD, AND GRAPHIC RECOGNITION PROGRAM - A graphic recognition device, method, and recognition program recognize graphics without being influenced by an image shadow area. Image input unit acquires the image of the outside environment of a vehicle using a vehicle mounted camera. A light source location information acquiring unit calculates location of a light source such as the sun using the acquired image. User vehicle shape acquiring unit and other vehicle shape acquiring unit generate shape information for the vehicles indicating the location of points forming vehicle contours. Shadow area calculating unit calculates, on the basis of both vehicles' shape information, the object shape information and the light source location information, the location coordinates of the shadow area, and converts the location coordinates into two-dimensional coordinates to the shadow/non-shadow area emphasis flag recognizing unit, which recognizes the flag in the image by judging the presence/absence of the recognition object in each shadow and non-shadow area specified. | 10-07-2010 |
20110018989 | ENDOSCOPE SYSTEM - The endoscope system of the present invention includes: an endoscope that has an image pickup device that picks up an observation image of a test object; an image display unit that converts image pickup signals that have been sent from the image pickup device into images and then displays these images; a first mounting portion that is provided in an operating section of the endoscope and on which the image display unit is mounted; and a second mounting portion that is provided in the operating section of the endoscope and on which the image display unit is mounted in a different position from that of the first mounting portion. | 01-27-2011 |
20120001437 | WIND POWER GENERATOR - Provided is a wind power generator that reduces the amount of heat input into a nacelle from the outside of the nacelle due to the solar radiation, and that improves the heat dissipation performance from the inside of the nacelle to the outside air. In a wind power generator in which a driving mechanism and power generation mechanism that are connected with a rotor head, to which wind-turbine blades are attached, are accommodated and installed in a nacelle, an outer wall surface of the nacelle is provided with, on at least a part of the wall surface where no direct sunlight is radiated, a heat-dissipation-resistance reducing portion that uses a member having a higher thermal conductivity than that of a peripheral wall member. | 01-05-2012 |
20120001438 | WIND POWER GENERATOR - A wind power generator is provided in which a reduction in weight is achieved by reducing the wall thickness of a nacelle, and an increase in the amount of heat input to the interior of the nacelle from sunlight is suppressed. In a wind power generator in which driving/power-generating mechanisms linked to a rotor head to which wind-turbine blades are attached are accommodated and installed inside a nacelle, a coating of high-reflectivity paint is formed on at least part of the outer wall that receives sunlight. | 01-05-2012 |
20130186144 | ELECTROMAGNETIC CASTING METHOD OF SILICON INGOT - Disclosed is an electromagnetic casting method of a silicon ingot in which a polycrystalline silicon ingot is continuously cast by charging silicon raw materials into a bottomless cold copper mold, melting the charged silicon raw materials through electromagnetic induction, pulling down to solidify the molten silicon, in which the length of a part of copper mold positioned below a lower end of an induction coil surrounding the copper mold is set to more than 40 mm and 180 mm or less. According to this method, a copper contamination of a silicon ingot incurred by a copper cold mold can be suppressed to produce a silicon ingot which is suitable as a starting material of the substrate of a solar cell. | 07-25-2013 |
Patent application number | Description | Published |
20100098177 | RADIO TRANSMISSION DEVICE, CONTROL DEVICE, RADIO COMMUNICATION SYSTEM, AND COMMUNICATION METHOD - A radio communication system converts a time domain signal into a plurality of frequency signals to be allocated onto a plurality of subcarriers to be transmitted. The radio communication system changes a method of allocating the plurality of frequency signals onto the plurality of subcarriers based on transmission power information. | 04-22-2010 |
20120324308 | WIRELESS COMMUNICATION SYSTEM, COMMUNICATION DEVICE, PROGRAM, AND INTEGRATED CIRCUIT - A communication device includes a turbo encoding section including a plurality of component encoders, wherein the plurality of component encoders within the turbo encoding section use different constraint lengths. | 12-20-2012 |
20130329830 | RECEIVING DEVICE, TRANSMITTING DEVICE, RECEIVING METHOD, TRANSMITTING METHOD, PROGRAM, AND WIRELESS COMMUNICATION SYSTEM - A reception device comprises a reception unit for receiving signals transmitted by assigning respectively a plurality of different frequency signal groups, which are generated based on a same bit sequence, to a plurality of layers, an MIMO separation unit for executing MIMO separation of the signals, received by the reception unit, into the frequency signal groups corresponding respectively to the plural layers, and a merging unit for merging individual items of information based on the frequency signal groups obtained by the MIMO separation, the items of information corresponding respectively to the plural layers. | 12-12-2013 |
Patent application number | Description | Published |
20090247830 | ENDOSCOPE, DISTAL END CAP-EQUIPPED ENDOSCOPE AND ENDOSCOPE CLEANING SHEATH - An endoscope including, an insertion section, a distal end section body which constitutes a distal end section of the insertion section and has at least an observation window, a first flow path which is formed to supply a liquid to the distal end section body side and communicates with a first fluid source, a second flow path which is formed to supply a gas to the distal end section body side and communicates with a second fluid source, and a nozzle having a jet outlet which jets a mixture fluid, in which a fluid supplied from the first flow path and a fluid supplied from the second flow path are mixed, toward the observation window, wherein the observation window is disposed, relative to the jet outlet, on a side of one of the first flow path and the second flow path, which has a smaller fluid supply amount. | 10-01-2009 |
20090247831 | ENDOSCOPE, DISTAL END CAP-EQUIPPED ENDOSCOPE AND ENDOSCOPE CLEANING SHEATH - An endoscope includes, an insertion section, a distal end section body which constitutes a distal end section of the insertion section and has at least an observation window, a liquid feed path which is formed to supply a liquid to the distal end section body side and communicates with a liquid feed source, a gas feed path which is formed to supply a gas to the distal end section body side and communicates with a gas feed source, and a nozzle having a jet outlet which jets a gas/liquid mixture fluid, in which the liquid supplied from the liquid feed path and the gas supplied from the gas feed path are mixed, toward the observation window, wherein an opening end of the liquid feed path and an opening end of the gas feed path are disposed in an order of proximity to the jet outlet. | 10-01-2009 |
20090253964 | ENDOSCOPE, DISTAL END CAP-EQUIPPED ENDOSCOPE AND ENDOSCOPE CLEANING SHEATH - An endoscope includes, an insertion section, a distal end section body has an observation window, a liquid feed path, a gas feed path, and a nozzle cleans the window by jetting toward the window a mixture fluid in which the liquid supplied from the liquid feed path and the gas supplied from the gas feed path are mixed, wherein the nozzle includes, a confluent portion which is provided in a mount plane in which the window of the distal end section body is provided, the confluent portion making confluent and mixing the liquid supplied from the liquid feed path and the gas supplied from the gas feed path, and a jet outlet which jets a gas/liquid mixture fluid, which is mixed in the confluent portion, toward the window. | 10-08-2009 |
20090253965 | ENDOSCOPE, DISTAL END CAP-EQUIPPED ENDOSCOPE AND ENDOSCOPE CLEANING SHEATH - An endoscope includes, an insertion section, a distal end section body has an observation window, a liquid feed path which is formed to supply a liquid to the distal end section body side, a gas feed path which is formed to supply a gas to the distal end section body side, and a nozzle having a confluent portion which makes confluent the liquid supplied from the liquid feed path and the gas supplied from the gas feed path, and a jet outlet which jets a gas/liquid mixture fluid, which is mixed in the confluent portion, toward the observation window, wherein the nozzle is configured such that an angle, which is formed between a direction of a flow of the liquid toward the jet outlet and a direction of a flow of the gas toward the jet outlet, is set at an obtuse angle of 90° or more. | 10-08-2009 |
20120046524 | ENDOSCOPE, DISTAL END CAP-EQUIPPED ENDOSCOPE AND ENDOSCOPE CLEANING SHEATH - An endoscope includes, an insertion section, a distal end section body has an observation window, a liquid feed path which is formed to supply a liquid to the distal end section body side, a gas feed path which is formed to supply a gas to the distal end section body side, and a nozzle having a confluent portion which makes confluent the liquid supplied from the liquid feed path and the gas supplied from the gas feed path, and a jet outlet which jets a gas/liquid mixture fluid, which is mixed in the confluent portion, toward the observation window, wherein the nozzle is configured such that an angle, which is formed between a direction of a flow of the liquid toward the jet outlet and a direction of a flow of the gas toward the jet outlet, is set at an obtuse angle of 90° or more. | 02-23-2012 |
20130204088 | ENDOSCOPE, DISTAL END CAP-EQUIPPED ENDOSCOPE AND ENDOSCOPE CLEANING SHEATH - An endoscope includes, an insertion section, a distal end section body which constitutes a distal end section of the insertion section and has at least an observation window, a liquid feed path which is formed to supply a liquid to the distal end section body side and communicates with a liquid feed source, a gas feed path which is formed to supply a gas to the distal end section body side and communicates with a gas feed source, and a nozzle having a jet outlet which jets a gas/liquid mixture fluid, in which the liquid supplied from the liquid feed path and the gas supplied from the gas feed path are mixed, toward the observation window, wherein an opening end of the liquid feed path and an opening end of the gas feed path are disposed in an order of proximity to the jet outlet. | 08-08-2013 |
20140275787 | ENDOSCOPE CLEANING SHEATH AND ENDOSCOPE DEVICE - An endoscope cleaning sheath includes a sheath main body, a distal-side fixing portion fixed to a distal portion of the sheath main body, and a proximal-side fixing portion fixed to a proximal portion of the sheath main body. The endoscope cleaning sheath includes a linear portion having a distal end fixed to the distal-side fixing portion at a distal-side connecting position and a proximal end fixed to the proximal-side fixing portion at a proximal-side connecting position, extended along a linear core axis between the distal-side connecting position and the proximal-side connecting position, and having a higher tensile strength in directions parallel to the longitudinal axis than the sheath main body. | 09-18-2014 |