Patent application number | Description | Published |
20090296651 | Data Allocation Method In Wireless Communication System And Wireless Communication System - A data allocation method in a wireless communication system in which data is allocated in both a time axis direction and frequency axis direction, and data is transmitted between a mobile station and base station according to an allocated schedule, the allocation method including: measuring propagation path information between the mobile station and the base station; and modifying an allocation width of a burst in the time axis direction or in the frequency axis direction based on the propagation path information. | 12-03-2009 |
20100035641 | Communication Device, Base Station, Method Of Communication, And Communication System - The MS detects a difference in timing or frequency between a reference signal being any one of the received signals from a plurality of BSs and each of the other received signals, notifies the results of detection to BSs other than the source BS of the reference signal, and the BSs other than the source BS of the reference signal control the timing or frequency of transmission of the signal to be received by other MSs other than the MS on the basis of the results of the detection. | 02-11-2010 |
20100067603 | Radio Communication Systems And Transmitting Method - A radio transmitter includes a signal generating unit that generates first and second OFDM (Orthogonal Frequency-Division Multiplexing) signals carrying the same information, and a phase shifter that controls a phase of the second OFDM signal based on a spectrum of a composite signal of the first and second OFDM signals. | 03-18-2010 |
20110111762 | RADIO COMMUNICATION SYSTEM, TERMINAL APPARATUS, AND RADIO COMMUNICATION METHOD IN RADIO COMMUNICATION SYSTEM - A radio communication system including a first terminal apparatus group for performing a reception by using a first radio resource and a transmission by using a second radio resource; and a second terminal apparatus group for performing the reception by using the second radio resource and the transmission by using the first radio resource, and a directly radio communication is performed, the system including: a first terminal which belongs to the first terminal apparatus group and transmits allocation request of transmission band in the second radio resource by using the second radio resource; and a second terminal which belongs to the second terminal apparatus group, receives the allocation request transmitted from the first terminal, and transmits information indicating allocation of the transmission band for the first terminal, wherein the first terminal transmits data by using the allocated transmission band in the second radio resource. | 05-12-2011 |
20110222591 | RECEIVING CIRCUIT - A receiving circuit includes: an analog-to-digital converter to convert an input signal in a certain bandwidth to a digital signal; a Fourier transformer to convert the digital signal from a time-domain signal to a frequency-domain signal; a band-elimination filter to extract an interference wave signal from the time-domain signal; and a filter control circuit to measure frequency characteristics of the interference wave signal so that the attenuation characteristics of the band-elimination filter has a attenuation characteristics opposite to the frequency characteristics in a direction. | 09-15-2011 |
20120020437 | OFDM COMMUNICATION RECEPTION DEVICE - An reception device includes: a fast-fourier-transform (FFT) circuit to FFT a first Orthogonal Frequency Division Multiplexing (OFDM) signal including a plurality of first symbols with a guard interval and a valid symbol using a plurality of FFT windows that includes different timings within a symbol length period; a propagation channel estimation circuit to extract pilot signals from the fast-fourier-transformed first OFDM signal, and estimate a plurality of propagation channel characteristics of the plurality of first symbols based on the pilot signals; and a propagation channel compensation circuit to obtain a propagation channel characteristic of a second symbol without a pilot signal based on the plurality of propagation channel characteristics and remove the propagation channel characteristic of the second symbol from a second OFDM signal obtained by fast-fourier-transforming the second symbol. | 01-26-2012 |
Patent application number | Description | Published |
20140105335 | WIRELESS RECEIVING APPARATUS - A wireless receiving apparatus includes a spurious component extraction unit, and a spurious cancellation unit. The spurious component extraction unit is configured to cancel a desired wave with a multi-antenna configuration, and extract spurious components. The spurious cancellation unit is configured to cancel spurious in received signals by using the spurious components extracted. A first correlation unit in the spurious component extraction unit finds a correlation between an output of the spurious extraction unit and an output of the spurious cancellation unit. | 04-17-2014 |
20140211899 | SIGNAL PROCESSING CIRCUIT AND METHOD - A signal processing circuit includes a PLL circuit configured to lock to a frequency contained in an input signal, a signal generating circuit configured to detect a direct-current component of a signal that is obtained by shifting frequencies of the input signal by a displacement equal to the locked frequency, and to generate a signal that has an amplitude responsive to the detected direct-current component and that has the same frequency and phase as a signal component of the locked frequency of the input signal, and a subtraction circuit configured to subtract the signal generated by the signal generating circuit from the input signal. | 07-31-2014 |
20150131704 | RECEIVER AND RECEIVING METHOD - A receiver for receiving a frame including a pilot signal and a data signal, referring to an impulse response of a propagation path estimated from the pilot signal, and performing compensation processing on the data signal, the receiver includes: an extraction unit configured to extract the pilot signal of the frame; and an estimation unit configured to execute orthogonal matching pursuit (OMP) method which is a decoding algorithm for compressive sensing and to estimate the impulse response from the pilot signal, wherein the estimation unit refers to a pilot signal of a first frame, estimates an impulse response, determines position information on the estimated impulse response, refers to a pilot signal corresponding to the determined position information, of a second frame subsequent to the first frame, estimates an impulse response, and determines position information on the estimated impulse response. | 05-14-2015 |
20150208427 | RECEIVER AND RECEIVING METHOD - A receiver includes: an extraction unit configured to extract a pilot signal of a received symbol including the pilot signal and a data signal, the symbol being one of sequential symbols received by the receiver; an estimation unit configured to calculate a channel estimation value indicating an estimation result of a channel impulse response in the symbol, based on the pilot signal by executing a decoding algorithm of compressed sensing; a reduction unit configured to perform a predetermined operation on each of channel estimation values of symbols of a predetermined number among the symbols, the operation reducing an error component included in the channel estimation value; and a canceller unit configured to cancel an inter-carrier interference component included in any one of symbols of the predetermined number, based on the channel estimation value in which the error component is reduced. | 07-23-2015 |
20150244490 | RECEIVING DEVICE - A receiving device includes: a propagation path compensation unit that compensates a signal by using a propagation path characteristic; a power arithmetic section that arithmetically operates power of a signal; a first reciprocal processing section that performs reciprocal processing on power to output a signal; an error arithmetic section that arithmetically operates an error of the compensated signal; a subtractor that subtracts the signal output from the first reciprocal processing section from the error; a second reciprocal processing unit that performs reciprocal processing on the signal output from the subtractor to output a signal; a first multiplier that multiplies the power and the signal output from the second reciprocal processing unit together to output a signal; and a second multiplier that multiplies the signal compensated by the propagation path compensation unit and the signal output from the first multiplier together to output a signal to an adder. | 08-27-2015 |
Patent application number | Description | Published |
20110294941 | VINYL CHLORIDE-BASED RESIN COMPOSITION, METHOD OF PRODUCING VINYL CHLORIDE-BASED POLYMER COMPOSITION, AND VINYL CHLORIDE-BASED POLYMER COMPOSITION OBTAINED THEREBY - Provided is a vinyl chloride-based resin composition including a vinyl chloride-based resin and a titanium dioxide having an average particle diameter of 5 to 50 nm, in an amount of 1,000 ppm to 10,000 ppm, by mass, relative to the mass of the vinyl chloride-based resin. By adding a titanium dioxide having an average particle diameter of 5 to 50 nm to a vinyl chloride-based resin in an amount described above, a vinyl chloride-based resin composition of excellent thermal stability can be obtained. In the vinyl chloride-based resin composition, the crystalline form of the titanium dioxide is preferably anatase, rutile, or a combination thereof. Also provided is a method of producing a vinyl chloride-based polymer composition that includes subjecting a vinyl chloride monomer, or a mixture of a vinyl chloride monomer and a monomer that is copolymerizable therewith, to suspension polymerization within an aqueous medium, and also includes adding a titanium dioxide having an average particle diameter of 5 to 50 nm to the raw material prior to commencement of the polymerization, to the reaction mixture during the polymerization, to the reaction product following completion of the polymerization, or to a combination of two or more of the raw material, the reaction mixture and the reaction product. The vinyl chloride-based polymer composition obtained using this method exhibits excellent thermal stability. | 12-01-2011 |
20120214667 | VISIBLE-LIGHT-RESPONSIVE TITANIUM OXIDE MICROPARTICLE DISPERSION, AND PROCESS FOR PRODUCTION THEREOF - Disclosed are: a visible-light-responsive titanium oxide microparticle dispersion comprising an aqueous dispersion medium and titanium oxide microparticles dispersed therein, and a peroxotitanium component, an iron component and/or a copper component and a tin component, wherein the content of the peroxotitanium component is 0.1 to 20 mass % relative to the titanium oxide content; and a process for producing a visible-light-responsive titanium oxide microparticle dispersion, comprising (1) producing peroxotitanic acid containing a tin compound from a raw material titanium compound, a tin compound and hydrogen peroxide, (2) heating an aqueous solution of peroxotitanic acid containing the tin compound to 80 to 250° C. under a high pressure to produce a titanium oxide microparticle dispersion containing a peroxotitanium component and a tin component, and (3) adding an iron compound and/or a copper compound to the titanium oxide microparticle dispersion to cause a reaction between the iron compound and/or the copper compound with the dispersion. | 08-23-2012 |
20140023855 | CORE/SHELL TYPE TETRAGONAL TITANIUM OXIDE PARTICLE WATER DISPERSION, MAKING METHOD, UV-SHIELDING SILICONE COATING COMPOSITION AND COATED ARTICLE - Core/shell type tetragonal titanium oxide particles consisting of a nanosized core of tetragonal titanium oxide having tin and manganese incorporated in solid solution and a shell of silicon oxide around the core are dispersed in an aqueous dispersing medium. The cores and the core/shell type titanium oxide particles have an average particle size of ≦30 nm and ≦50 nm, respectively. The amount of tin or manganese in solid solution is to provide a molar ratio Ti/Sn or Ti/Mn between 10 and 1,000. | 01-23-2014 |
20140100105 | METHOD FOR MANUFACTURING MICROPARTICULATE ANATASE OR RUTILE TITANIUM OXIDE DISPERSION AND COMPONENT HAVING PHOTOCATALYTIC THIN FILM ON SURFACE - A method for manufacturing a microparticulate anatase or rutile titanium oxide dispersion from a peroxotitanic acid solution optionally containing tin, wherein the method for manufacturing an anatase or rutile titanium oxide dispersion is characterized in that the peroxotitanic acid solution is fed continuously to a flow reactor and subjected to hydrothermal treatment at 150 to 250° C. and 0.5 to 10 MPa. The invention makes it possible to provide a method for manufacturing a microparticulate anatase or rutile titanium oxide dispersion having excellent stability in regard to the titanium oxide microparticles and enabling a high-transparency photocatalytic thin film to be produced, and to provide a member having a photocatalytic thin film formed on the surface using this dispersion. | 04-10-2014 |
20140127514 | INORGANIC HYDROPHILIC COATING SOLUTION, HYDROPHILIC COATING FILM OBTAINED THEREFROM, AND MEMBER USING SAME - An inorganic hydrophilic coating solution including (a) an aqueous solution containing an amorphous silicate compound obtained by hydrolyzing and condensing a tetrafunctional silicon compound having a purity of 99.0 mass % or greater in an aqueous medium in the presence of a basic compound at a temperature within a range from normal temperature to 170° C., (b) water, and optionally, (c) not more than 30 mass % of an alcohol, a ketone, or a surfactant, where the concentration of the solid fraction derived from the aqueous solution containing the amorphous silicate compound is 0.01 to 2.0 mass % and the pH is 5 to 8; an inorganic hydrophilic coating film formed from a dried and cured product of the inorganic hydrophilic coating solution; a member having a substrate and the inorganic hydrophilic coating film formed on the surface of the substrate; and a cover panel for a solar cell module including the member. | 05-08-2014 |
20140309103 | VISIBLE-LIGHT-RESPONSIVE TITANIUM OXIDE MICROPARTICLE DISPERSION, METHOD FOR MANUFACTURING SAME, AND MEMBER HAVING SURFICIAL PHOTOCATALYST THIN FILM FORMED USING SAME DISPERSION - Provided is a visible-light-responsive titanium oxide microparticle dispersion or the like readily enabling manufacture of a highly transparent photocatalyst thin film demonstrating photocatalyst activity even using visible light alone, and having exceptional titanium oxide microparticle dispersion stability even after storage for prolonged periods of time in cold and dark interior locations. The present invention makes it possible to: produce a peroxotitanic acid solution containing vanadium and a tin compound from a titanium compound, a vanadium compound, a tin compound, a basic substance, hydrogen peroxide, and an aqueous dispersion medium as starting materials; subject the peroxotitanic acid solution to a hydrothermal reaction under high pressure; subsequently admix a copper compound into the acid solution; and obtain a visible-light-responsive titanium oxide microparticle dispersion or the like. | 10-16-2014 |
20150273440 | VISIBLE LIGHT-RESPONSIVE PHOTOCATALYTIC NANOPARTICLE DISPERSION LIQUID, METHOD FOR PRODUCING SAME, AND MEMBER HAVING PHOTOCATALYTIC THIN FILM ON SURFACE - It is possible to obtain a visible light-responsive photocatalytic nanoparticle dispersion liquid containing copper-containing titanium oxide nanoparticles by subjecting an aqueous peroxotitanic acid solution containing a copper compound to hydrothermal reaction for crystallizing the aqueous solution by means of heat under high pressure. The visible light-responsive photocatalytic nanoparticle dispersion liquid thus obtained exhibits excellent dispersion stability of titanium oxide nanoparticles within a water-based dispersion medium even when left in a cold and dark indoor area for a long period of time, expresses photocatalytic activity even in visible light (400 to 800 nm) alone, and can easily create a photocatalytic thin film which is extremely transparent and exhibits excellent durability, and in which the state of copper coordination when exposed to heat or ultraviolet rays is stable and cannot be easily modified. | 10-01-2015 |
20150299417 | ORGANIC SOLVENT DISPERSION OF TITANIUM OXIDE SOLID-SOLUTION PARTICLES, MAKING METHOD, AND COATING COMPOSITION - Core/shell type tetragonal titanium oxide solid-solution particles each consisting of a core of tetragonal titanium oxide having tin and manganese incorporated in solid solution and a shell of silicon oxide are dispersed in an organic solvent. The core/shell type particles have a diameter D | 10-22-2015 |
20160111559 | SOLAR CELL DEGRADATION CONTROL-COATING LIQUID AND THIN FILM AND SOLAR CELL DEGRADATION CONTROL METHOD - Provided is a solar cell degradation control-cover glass having a thin film that is formed by applying to a cover glass back surface a coating liquid comprising either an aqueous solution of a water-soluble compound of at least one metal selected from silicon, aluminum, zirconium, tin and zinc or a fine particle dispersion liquid of an oxide of such metal. | 04-21-2016 |
Patent application number | Description | Published |
20120196404 | Adhesive Compositions for a Semiconductor, an Adhesive Sheet for a Semiconductor and a Production Method of a Semiconductor Device - An adhesive composition for a semiconductor includes an acrylic polymer (A), an epoxy-based heat curable resin (B), a heat curing agent (C), a silane compound (D) having an organic functional group, molecular weight of 300 or more and an alkoxy equivalent of larger than 13 mmol/g, and a silane compound (E) having an organic functional group, molecular weight of 300 or less and an alkoxy equivalent of 13 mmol/g or less. | 08-02-2012 |
20140295646 | Dicing Sheet with Protective Film Forming Layer and Chip Fabrication Method - A dicing sheet with a protective film forming layer has a substrate film, an adhesive layer, and a protective film forming layer, and at a minimum, the adhesive layer is formed in an area surrounding the protective film forming layer in a planar view, and the substrate film has the following characteristics (a)-(c): (a) the melting point either exceeds 130° C. or the film has no melting point; (b) the thermal contraction rate under conditions of heating at 130° C. for two hours is from −5 to +5%, and (c) the degree of elongation-to-break in the MD direction and the CD direction is at least 100%, and the stress at 25% is no more than 100 MPa. | 10-02-2014 |
Patent application number | Description | Published |
20090175524 | MAGNETIC RESONANCE IMAGING APPARATUS AND SCANNING-CONDITION SETTING METHOD - In a console device that controls an Magnetic Resonance Imaging (MRI) apparatus, a preset-information storage unit stores preset information including information about a plurality of scanning parameters that are grouped based on an instruction from an operator, and a scanning-condition setting unit sets scanning conditions based on parameter values of the scanning parameters that are grouped in the preset information stored by the preset-information storage unit. | 07-09-2009 |
20090309592 | MAGNETIC RESONANCE IMAGING APPARATUS AND MAGNETIC RESONANCE IMAGING METHOD - A magnetic resonance imaging apparatus includes a fluid image data acquisition unit and a flow velocity measuring unit. The a fluid image data acquisition unit acquires fluid image data, corresponding to mutually different inversion times, by imaging with applying at least three inversion recovery pulses having the inversion times. The flow velocity measuring unit obtains a flow velocity of fluid based on time variation of a signal intensity depending on the inversion times at each of plural positions and a distance between the plural positions. | 12-17-2009 |
20110169490 | MAGNETIC RESONANCE IMAGING APPARATUS - A Magnetic Resonance Imaging (MRI) apparatus according to an embodiment can execute a plurality of kinds of protocols varying in image contrast, and includes a storage unit and an output unit. The storage unit stores imaging conditions about the plurality of kinds of protocols. The output unit outputs onto a display unit an edit screen for receiving edit of a parameter that is an element of the imaging conditions. The edit screen is output by being separated into a common part that receives edit of parameter common to a plurality of kinds of protocols varying in image contrast, and an individual part that individually receives edit of parameter with respect to each protocol. | 07-14-2011 |
20110213238 | MAGNETIC RESONANCE IMAGING USING TECHNIQUE OF POSITIONING MULTI-SLABS TO BE IMAGED - A magnetic resonance imaging system is provided for obtaining MR images by scanning a region of the object previously located on an object's positioning image. The system comprises a displaying unit, inputting unit, approximating unit, and locating unit. The displaying unit displays a plurality of tomographic images of the object as the positioning image, each of the tomographic images including an indication of a target of interest thereon. The inputting unit enables information about a running state of the target in a direction along the target to be supplied toward each of the tomographic images. The approximating unit calculates three-dimensionally an approximated curve indicating the running state of the target in the direction on the basis of the supplied information about the running state. The locating unit locates the region substantially perpendicular to the approximated curve. | 09-01-2011 |
20120010496 | MEDICAL IMAGE DIAGNOSIS APPARATUS AND A CONTROLLING METHOD - A medical image diagnosis apparatus according to the present embodiments includes a storage and an execution controller. The storage is configured to store therein a program for executing a plurality of processes contained in an image taking procedure or a plurality of processes contained in a post-processing procedure, while the processes are classified into a first group for which an input operation from an operator is received and a second group for which the input operation is not received, and the processes are associated with one another according to an order. The execution controller is configured to exercise control so that the processes are executed according to the order. When executing a process classified into the first group, the program displays information selected according to a purpose of the image taking procedure or the post-processing procedure, as an operation screen. | 01-12-2012 |
20120256627 | MAGNETIC RESONANCE IMAGING APPARATUS AND MAGNETIC RESONANCE METHOD - According to one embodiment, a magnetic resonance imaging apparatus includes an imaging condition setting unit, a verification image generating unit and an imaging unit. The imaging condition setting unit is configured to set an imaging condition for applying radio frequency pre-pulses to adjust a contrast. The radio frequency pre-pulses includes a region selective radio frequency pulse. The verification image generating unit is configured to generate and display an image for verifying the contrast based on application conditions including an application region and an application number of the radio frequency pre-pulses. The imaging unit is configured to perform magnetic resonance imaging according to the imaging condition. | 10-11-2012 |
20130154645 | MAGNETIC RESONANCE IMAGING APPARATUS AND MAGNETIC RESONANCE IMAGING METHOD - According to one embodiment, a magnetic resonance imaging apparatus includes an imaging condition setting unit and an imaging unit. The imaging condition setting unit is configured to display a setting screen of a radio frequency prepulse on a display unit to set imaging conditions including application timings of radio frequency prepulses according to input information from an input device through the setting screen. The setting screen displays an application timing of a radio frequency excitation pulse and the application timings of the radio frequency prepulses on a time axis. The imaging unit is configured to perform imaging of an object according to the imaging condition. | 06-20-2013 |