THE UNIVERSITY OF ELECTRO-COMMUNICATIONS Patent applications |
Patent application number | Title | Published |
20150323304 | OPTICAL PROPERTY MEASUREMENT APPARATUS AND OPTICAL PROPERTY MEASUREMENT METHOD - An apparatus enabling abnormality detection of a sample. A first interference optical system scans the sample with first signal light from a first sample optical path, making the first signal light interfere with first reference light from a first reference optical path, to detect first interference light. Optical path length difference between the first sample optical path and first reference optical path is changed based on the detection. A change in the optical path length difference is determined. A second interference optical system scans the sample with second signal light from a second sample optical path, making the second signal light interfere with second reference light from a second reference optical path to detect second interference light. Tomographic information of the sample based on detection of the second interference light is determined. A refractive index profile of the sample is obtained based on the change amount information and tomographic information. | 11-12-2015 |
20150270409 | RECTIFYING ELEMENT - A rectifying element includes a first electrode having a first work function, a second electrode having a second work function larger than the first work function, and a semiconductor layer having a third work function that is a value between the first work function and the second work function, and joined to the first electrode and the second electrode. | 09-24-2015 |
20140232482 | TRANSMISSION LINE RESONATOR, BAND-PASS FILTER AND BRANCHING FILTER - A transmission line resonator includes distributed coupled lines including first distributed constant line which one ends are connected to a short-circuit grounding portion and second distributed constant line which is disposed in parallel to the first distributed constant line while being separated therefrom by a predetermined distance and which one ends opposing the short-circuit grounded one ends of the first distributed constant line are connected to the short-circuit grounding portion, and a single transmission line which both ends are connected to the respective other ends of the distributed coupled lines. | 08-21-2014 |
20140221665 | LUMINESCENT SUBSTRATE FOR LUCIFERASE - An object of the present invention to provide a firefly luciferin and firefly luciferin analog that are modified to maintain luminescent activity by luciferase in a firefly bioluminescent system. In particular, it is an object of the present invention to provide a new luminescent substrate for which the emission wavelength in a firefly bioluminescent system is shifted to a longer wavelength than that of a conventional luminescent substrate. The present invention provides a luciferin in which the benzothiazole ring moiety has been modified at the 7-position, a luciferin analog in which the benzene ring moiety has been modified at the 6-position, and a luciferin analog in which the 6-(dialkylamino)-2-naphthalenyl moiety has been modified at the 5-position. | 08-07-2014 |
20140219478 | MIXING DEVICE, MIXING SIGNAL PROCESSING DEVICE, MIXING PROGRAM AND MIXING METHOD - A mixing device includes a signal data generation unit that generates signal data on a time-frequency plane composed of a time-axis and a frequency-axis from each of two or more input signals derived from a time domain, a signal processing unit that receives the signal data for the two or more input signals, and performs a mixing process that includes an adding operation of the signal data for each corresponding point on the time-frequency plane of the signal data for each of the input signals, and an output signal generation unit that receives the operation result of the signal processing unit and outputs an output signal formed by converting the inputted signal into a signal of a predetermined format. | 08-07-2014 |
20140193594 | METAL OBJECT WITH DIAMOND-LIKE CARBON FILM AND METHOD FOR FORMING DIAMOND-LIKE CARBON FILM - A metallic film formation target which is an object on which a diamond-like carbon film is to be formed is placed in a flow channel through which film formation gas containing methane gas flows. The film formation gas is caused to flow at a predetermined flow rate through the flow channel during the process of raising the temperature of the film formation target from room temperature to a predetermined temperature. The film formation gas is thereby reacted with impurities in a film formation target surface for removal of the impurities from the film formation target surface and is further reacted with metallic elements exposed by the removal of impurities, thus forming a diamond-like carbon film on the film formation target surface. | 07-10-2014 |
20140147331 | METHOD FOR PRODUCING HIGH-STRENGTH MAGNESIUM ALLOY MATERIAL AND MAGNESIUM ALLOY ROD - A method for producing a high-strength magnesium alloy material includes (a) a step of preparing a magnesium alloy workpiece having a top face and a side face; and (b) a step of applying a compressive load σp (MPa) from the top face side of the workpiece and performing a uniaxial forging process on the workpiece. Step (b) is performed while suppressing deformation of the workpiece widening outward and under conditions including (i) σp>σf (where σf is the compressive breaking stress (MPa) of the workpiece); (ii) a plastic deformation rate is less than or equal to 10%, and (iii) a strain rate is less than or equal to 0.1/sec. | 05-29-2014 |
20130332729 | SEARCH SYSTEM, SEARCH METHOD OF SEARCH SYSTEM, INFORMATION PROCESSING DEVICE, SEARCH PROGRAM, CORRESPONDING KEYWORD MANAGEMENT DEVICE, AND CORRESPONDING KEYWORD MANAGEMENT PROGRAM - A searchable encryption resistant to frequency analysis. A conversion rule management device generates a conversion rule table associating a search keyword with a conversion keyword group. Based on the conversion rule table, a data registration device generates registration data associating encrypted data with an encrypted keyword, and registers the registration data in a server device. An information processing device obtains from the conversion rule table a conversion keyword group associated with a specified search keyword, generates an encrypted keyword group, and requests a data search by specifying the encrypted keyword group. Using as a search key an encrypted keyword included in the encrypted keyword group, the server device searches for encrypted data associated with the search key, and returns searched encrypted data. The information processing device decrypts the searched encrypted data, and outputs as a search result search data obtained by decryption. | 12-12-2013 |
20130307640 | TRANSMISSION LINE RESONATOR, BANDPASS FILTER USING TRANSMISSION LINE RESONATOR, SPLITTER, BALANCED-TO-UNBALANCED TRANSFORMER, POWER DISTRIBUTOR, UNBALANCED-TO-BALANCED TRANSFORMER, FREQUENCY MIXER, AND BALANCE-TYPE FILTER - A transmission line resonator includes a half-wavelength stepped-impedance resonator with two ends short-circuited to ground, and a capacitive element with one end connected to a center portion of the stepped-impedance resonator and the other end short-circuited to ground. The stepped-impedance resonator includes a first transmission line, a second transmission line, and a third transmission line. The second transmission line has a second line impedance and a second line length, with one end being connected to one end of the first transmission line and the other end being short-circuited to ground. The third transmission line has the second line impedance and the second line length, with one end being connected to the other end of the first transmission line and the other end being short-circuited to ground. The first line impedance is lowered in comparison with the second line impedance. | 11-21-2013 |
20130218238 | STIMULATION SIGNAL GENERATION DEVICE AND STIMULATION SIGNAL GENERATION METHOD - Implementation including a brain activity data acquisition unit ( | 08-22-2013 |
20130208654 | COMMUNICATION DEVICE, COMMUNICATION METHOD AND COMMUNICATION SYSTEM - A communication device, a communication method and a communication system that enable an increase in channel capacity at cell edges of a plurality of cells. Data transmission is implemented by transmission stations, which are base stations of adjacent cells, by MIMO transmission. A relay station receives radio waves that are transmitted by both the transmission station and the transmission station, and acquires data transmitted by the transmission station and data transmitted by the transmission station. The relay station transmits data to reception stations in adjacent cells according to multi-user MIMO transmission. The data transmitted by the transmission station is received by the reception station via the relay station, and the data transmitted by the transmission station is received by the reception station via the relay station. The present invention can be used in cellular systems. | 08-15-2013 |
20130169506 | ANTENNA - A multi-frequency circularly polarized antenna ( | 07-04-2013 |
20130093501 | ELECTRICAL STIMULATION DEVICE AND ELECTRICAL STIMULATION METHOD - In an electrical stimulation device and an electrical stimulation method thereof, electrical stimulation can be adjusted more in real time, and stability and safety of the electrical stimulation can be more improved. An electrical stimulation device includes an electrode an electrical signal supply section, a skin impedance detection section, and an electrical signal controller. The electrical signal supply section supplies an electrical signal for generating the electrical stimulation to the electrode. During the supply of the electrical signal, the electrical signal controller acquires information associated with skin impedance through the skin impedance detection section in a cycle shorter than a supply period of the electrical signal, and adjusts the electrical signal to be supplied to the electrode in the next cycle based on the acquired information associated with skin impedance. | 04-18-2013 |
20120257670 | TRANSMISSION CIRCUIT - A transmission circuit comprises a Σ−Δ modulator to perform Σ−Δ modulation of an amplitude modulation component of a modulation signal and to output a pulse width modulation signal, an angle modulator to generate an angle modulation component signal of a signal obtained by multiplying the modulation signal by a transmission output control coefficient corresponding to a transmission output in a power amplifier, and a multiplier to multiply the pulse width modulation signal by the angle modulation component signal and to output a result of the multiplication as an output signal to the power amplifier. | 10-11-2012 |
20120210056 | CACHE MEMORY AND CONTROL METHOD THEREOF - A cache memory includes a CAM with an associativity of n (where n is a natural number) and an SRAM, and storing or reading out corresponding data when a tag address is specified by a CPU connected to the cache memory, the tag address constituted by a first sub-tag address and a second sub-tag address. The cache memory classifies the data, according to the time at which a read request has been made, into at least a first generation which corresponds to a read request made at a recent time and a second generation which corresponds to a read request made at a time which is different from the recent time. The first sub-tag address is managed by the CAM. The second sub-tag address is managed by the SRAM. The cache memory allows a plurality of second sub-tag addresses to be associated with a same first sub-tag address. | 08-16-2012 |
20120169431 | MICROWAVE HARMONIC PROCESSING CIRCUIT - A microwave harmonic processing circuit includes (n−1) parallel open ended stubs differing in length, connected in parallel to an output terminal of a serial transmission line at a single point, and having predetermined electrical lengths corresponding to second to higher n-th (n is any integer) harmonics, respectively, the serial transmission line having an input terminal connected to an output terminal of a transistor and having a predetermined electrical length; a first strip conductor connecting the serial transmission line to two parallel open ended stubs of the (n−1) parallel open ended stubs at a single connecting point; a second strip conductor connecting the (n−3) parallel open ended stubs to each other at a single connecting point; a ground layer disposed between first strip conductor and second strip conductor; and a via electrically connecting a connecting portion of first strip conductor and a connecting portion of second strip conductor. | 07-05-2012 |
20120121221 | OPTICAL NANOFIBER RESONATOR - To provide an optical nanofiber resonator having an optical waveguide whose diameter is equal to or smaller than the wavelength of a propagation light, a light emitter disposed at a predetermined position of the optical waveguide, and a first reflector and a second reflector formed in the optical waveguide with the light emitter interposed therebetween, wherein at least one of the first reflector and the second reflector transmits a part of the propagation light. With such a configuration, the channeling efficiency of the light emitted from the light emitter and the propagation mode of the optical waveguide is dramatically improved. | 05-17-2012 |
20120071377 | ENGINE CLEANING COMPOSITION AND METHOD FOR CLEANING THE ENGINE - The present invention provides a method of cleaning an engine having at least one combustion chamber, and the method includes the steps of providing an engine cleaning composition and introducing the cleaning composition into the combustion chamber. The engine cleaning composition includes: (i) 10-100 wt % of an alkanol amine hydroxy carboxylate represented by formula (I): RCHOHCOONH | 03-22-2012 |
20120067142 | SLIPPAGE DETECTION DEVICE AND METHOD - What is proposed is simply-structured initial slippage detection means. | 03-22-2012 |
20120061564 | SURFACE ANALYZER OF OBJECT TO BE MEASURED AND ANALYZING METHOD - A surface analyzer | 03-15-2012 |
20110288800 | METHOD FOR MEASURING SYSTEM PARAMETER OF LINEAR MULTIPORT AND MEASURING METHOD USING VECTOR NETWORK ANALYZER - The present invention provides a novel measurement method for system parameters of a 5-port junction used in a VNA (Vector Network Analyzer). A VNA is a device for measuring amplitude ratios and phase differences (S-parameters: scattering matrix elements) between incident waves and reflected waves of a DUT (Device Under Test), or between input waves and transmitted waves. What has been newly discovered is that for 5 ports, S-parameters can be expressed by a linear coupling using H and power difference ratios ({P(S)/P(0)}−1). It is possible to easily calculate parameter H using a minimum of three already known standards, and amount of calculation can be reduced compared to conventionally. | 11-24-2011 |
20110164814 | FOREGROUND REGION EXTRACTION PROGRAM, FOREGROUND REGION EXTRACTION APPARATUS AND FOREGROUND REGION EXTRACTION METHOD - There are provided a foreground region extraction program, a foreground region extraction apparatus, and a foreground region extraction method capable of clipping an object region (foreground region) at high speed. | 07-07-2011 |
20110069541 | FERROMAGNETIC THIN WIRE ELEMENT - The present invention uses a ferromagnetic thin wire having a domain wall inside, with the magnetic moment at the center thereof being perpendicular to the longitudinal axis of the thin wire. With the domain wall being fixed by a domain wall fixation device (e.g. antiferromagnetic thin wires) so that the domain wall is prevented from moving in the ferromagnetic thin wire, when a direct current is supplied, the magnetic moment rotates in the immobilized domain wall. This rotation of the moment can be detected by a TMR element or the like. This configuration of the ferromagnetic thin wire element can be directly used to create a microwave oscillator or magnetic memory. | 03-24-2011 |
20110050350 | AMPLIFIER CIRCUIT - An amplifier circuit operating at a fundamental angular frequency • | 03-03-2011 |
20110033878 | LUMINESCENT SUBSTRATE FOR LICIFERASE - The present invention relates to a compound having a structure analogous to firefly luciferin. In particular, the invention relates to a heterocycle compound which produces a luminescence at a light wavelength different from that of firefly luciferin in nature. The present invention provides a heterocycle compound of following general formula I. In the above general formula, R | 02-10-2011 |
20100279725 | RADIO APPARATUS, RADIO COMMUNICATION SYSTEM, AND METHOD FOR DETECTING RADIO WAVE - Provided is a radio communication system including a plurality of cognitive radio apparatuses each including at least: a transmission/reception element; and a detection element for detecting a radio wave transmitted from a radio apparatus of another radio communication system, in which the radio communication system further includes a control section for determining a frequency band on which each cognitive radio apparatus of a radio apparatus group including the plurality of cognitive radio apparatuses is to detect the radio wave. | 11-04-2010 |
20100232436 | A Multi-Hop Communication Method, a Multi-Hop Communication Terminal and Communication Program - The degradation of the communication characteristics and the throughput of the entire network can be improved. The failures of sending and receiving are reduced and the transmission time is reduced. In a multi-hop communication method how the source terminal | 09-16-2010 |
20100046633 | COMMUNICATION TERMINAL, CONTENT REPRODUCTION METHOD, CONTENT REPRODUCTION PROGRAM, CONTENT REPRODUCTION SYSTEM, AND SERVER THEREFOR - A communication terminal, includes: a communicator, configured to transmit and receive data to and from a server storing video contents; an accumulator, configured to accumulate a plurality of partial streams extracted from different time positions within the video contents received through the communicator as asynchronous streams; a decoder, configured to decode at least one of the asynchronous streams and synchronous streams that are not extracted as the asynchronous streams from the video contents, the synchronous streams being streaming-distributed from the server; and a controller, configured to acquire streams having time position information before and after a reproduction time position of the at least one of the asynchronous streams and the synchronous streams decoded by the decoder while the at least one of the asynchronous streams and the synchronous streams are reproduced on the display, and control the display to display the acquired streams after the reproduction. | 02-25-2010 |
20100014846 | JIGGLE MEASURING SYSTEM AND JIGGLE MEASURING METHOD - A camera shake measurement system includes a display unit for sequentially displaying a plurality of distinguishable test patterns, a first storage unit for storing as a template each of the plurality of test patterns to be displayed, a second storage unit for storing a composite image produced by photographing at least two test patterns as still images from the plurality of test patterns to be sequentially displayed by a photographing apparatus, and a pattern recognition unit for recognizing images that match each of the templates from the composite image by calling the templates from the first storage unit, calling the composite image from the second storage unit, and moving, for each of the called templates, the template while superposing the template on the composite image. | 01-21-2010 |
20090183577 | TWO DIMENSIONAL LOAD DISTRIBUTION CENTER POSITION DETECTION SENSOR AND TWO DIMENSIONAL LOAD DISTRIBUTION CENTER POSITION DETECTION DEVICE - For manufacturing a sensor covering a free-form surface, detection elements in which the electric resistance between a first electrode and a second electrode varies when a load is acted on, and cables 12 connecting the adjoining detection elements are provided. Each cable | 07-23-2009 |
20090161700 | FIBER LASER - A fiber laser includes: a solid laser fiber doped with a rare earth element; a first grating fiber provided at one end portion of both ends along an optical axis direction of the solid laser fiber; and a first reflective element provided at the other end portion of the solid laser fiber. The first and second reflective elements constitute a resonator structure for the solid laser fiber; the first grating fiber Bragg-reflects only two polarizations of a first polarization having a first wavelength, and a second polarization having a second wavelength different from the first wavelength and being mutually orthogonal with the first polarization in a polarization direction; and at least one reflection wavelength of light which is reflected at the first reflective element and either one wavelength of the two polarizations which are Bragg-reflected at the first grating fiber coincide with each other. | 06-25-2009 |
20090153744 | Scene detection system and scene detection method - A shot symbol string storage is configured to store a shot symbol string provided by applying a shot symbol corresponding to the type to each shot of video data. A model pattern storage is configured to store a model pattern symbol string which is obtained by arraying the plurality of shot symbols so as to correspond to a scene to be detected. A detector is configured to detect a symbol string, which corresponds to the model pattern symbol string of the model pattern storage, from the shot symbol string of the shot symbol string storage. Continuous shots of the video data corresponding to the symbol string detected by the detector are recognized as a specific scene. | 06-18-2009 |
20090096934 | Television receiver and liquid crystal television receiver - A television receiver having an antenna function for receiving broadcast signals includes an antenna group having plural variable directivities and including plural antennas formed in plural parts on inner and outer surfaces of walls of a cabinet or nonmetallic surfaces of component parts arranged in the cabinet so as to conform to the shapes of the corresponding surfaces, respectively, and a switching control unit capable of specifying a directivity for the antenna group to receive broadcast signals by the antenna group. | 04-16-2009 |
20090096673 | Printed wiring board and antenna unit - A printed wiring board is provided with a multidirectional antenna having plural directivities, and an antenna control circuit for selectively setting the multidirectional antenna for one of the directivities. The antenna control circuit is formed in a predetermined area on the printed wiring board, the antenna includes plural flat antenna elements of a predetermined length, and the antenna elements are formed on one of the opposite surfaces of the printed wiring board so as to extend radially outward from the predetermined area and connected to the antenna control circuit. | 04-16-2009 |
20090051605 | Television receiving apparatus - A television receiving apparatus | 02-26-2009 |
20090051591 | Broadcast receiving apparatus - With a power supply provided for a smart antenna, whether the antenna is connected is determined according to whether the power supply is connected. When it is determined that the smart antenna is not connected, power supply to units related only to controlling of the smart antenna is stopped, whereby power saving is realized. Further, user's setting for discriminating kinds of antennas becomes unnecessary and, when a smart antenna is not connected, power supply for the same can be prevented. | 02-26-2009 |
20090040390 | Cut detection system, shot detection system, scene detection system and cut detection method - A cut detection system includes: an extractor configured to extract macroblock type information at least for every B frame from video compressed data including the macroblock type information; a calculator configured to calculate the number of intra-coded macroblocks for every frame from the extracted macroblock type information; and a detector configured to detect the B frame or a group of picture including the B frame to be a replay cut portion, which is a head portion or last portion of a replay shot, by using a frequency characteristic of the intra-coded macroblocks included in the B frame as determination conditions. | 02-12-2009 |
20090013159 | Queue Processor And Data Processing Method By The Queue Processor - A queue processor and its data processing method are provided. It can do high-speed data processing and decreases the electric energy consumption. | 01-08-2009 |
20080309826 | Television receiving system - The present invention discloses a television receiving system comprising: a smart antenna having a receiving unit that electrically switches directions of receiving television broadcasting signals and a connecting portion that is detachably connected to the receiving unit; and a television receiver couple with the receiving unit though the connecting portion and having a holding portion that holds the receiving unit detached from the connecting portion on a rear surface of the television receiver where is opposite to a front surface displaying videos. | 12-18-2008 |
20080309580 | Smart antenna - The present invention discloses a smart antenna that includes: a switch unit that switches a direction for receiving radio waves; and an outer covering unit that covers the smart antenna and is made of an insulating material. | 12-18-2008 |
20080291337 | Compact digital TV tuner unit - The present invention discloses a compact digital TV tuner unit mounted on an analog receiver equipped with an analog tuner, comprising: a boxy chassis; a terminal face of the chassis facing the analog receiver; an antenna input terminal that is placed on the terminal face and that is connected to an external antenna wire; an antenna output terminal that is placed on the terminal face adjacent to the antenna input terminal and that is connected to the analog receiver; and a converter circuit whose circuit elements are placed on a loop line starting at the antenna input terminal and ending at the antenna output terminal in the chassis and that converts digital broadcast signals input from the antenna input terminal to analog broadcast signals to output the analog broadcast signals to the antenna output terminal. | 11-27-2008 |
20080279528 | Reproducing Apparatus - Disclosed is a reproducing apparatus to reproduce reproduction data at a speed different from a speed at a time of recording of the reproduction data, the recording apparatus including: a storage section to store the reproduction data; a primary reproducing plan producing section to produce a primary reproducing plan ranging from present time to future, according to the reproduction speed different from the speed at the time of recoding the reproduction data; and a secondary reproducing plan producing section to modify to the primary reproducing plan by solving an optimization problem based on the primary reproducing plan produced by the primary reproducing plan producing section, so as to produce a secondary reproducing plan ranging from the present time to the future. | 11-13-2008 |
20080278638 | Liquid crystal television and display device - The present invention discloses a display device, comprising: a display with deviated directivity in an orientation angle offering good viewability, a casing that holds the display and is placed at a plurality of angles, a direction sensor detecting a direction of placement of the casing, a video processing circuit for outputting a video to the display, and a switching circuit for switching an angle of the video output from the video processing circuit based on the direction of the placement detected by the direction sensor. | 11-13-2008 |
20080278399 | Smart antenna and antenna fixing mechanism - A holding part | 11-13-2008 |
20080258972 | Antenna System - Disclosed is an antenna system, including: an antenna which can switch directivity thereof when receiving an analog television broadcasting signal; a switching section to switch the directivity of the antenna; a measurement section to measure radio wave quality of the analog television broadcasting signal received by the antenna by analyzing the analog television broadcasting signal when the directivity of the antenna is switched by the switching section; a storage section to store data of radio wave quality in different directions measured by the measurement section for each channel; and a control section to control the switching section to switch the directivity of the antenna to one direction having a highest radio wave quality among the different directions corresponding to a desired channel when the desired channel is designated. | 10-23-2008 |
20080257074 | Sample Movement Control Unit, Sample Movement Parameters Acquisition Method, and Sample Movement Control Method - There is provided a device and a method capable of simply manipulating a sample, without the need for an expensive device. | 10-23-2008 |
20080235010 | Reproducing Apparatus - Disclosed is a reproducing apparatus comprising: a reproduction section to reproduce reproduction data comprising sound data and/or image data; a selection section to calculate evaluation values between a link source set for the reproduction data and each of a plurality of link destinations corresponding to the link source by a predetermined arithmetic expression based on link information of the plurality of link destinations, and to select a link destination having a highest evaluation among the evaluation values out of the plurality of link destinations; and a reproduction control section to move a reproduction point of the reproduction data reproduced by the reproduction section to a position corresponding to the link destination by linking the link source with the link destination when the reproduction point reaches a given point with respect to a position corresponding to the link source, and to instruct the reproduction section to reproduce the reproduction data. | 09-25-2008 |