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Kurauchi, JP
Akira Kurauchi, Kawasaki-Shi JP
| Patent application number | Description | Published |
|---|---|---|
| 20090278716 | SAMPLE HOLD CIRCUIT FOR USE IN TIME-INTERLEAVED A/D CONVERTER APPARATUS INCLUDING PARALLELED LOW-SPEED PIPELINE A/D CONVERTERS - A sample hold circuit is provided for use in a time-interleaved A/D converter apparatus including a plurality of low-speed pipeline A/D converters which are parallelized. The sample hold circuit includes a sampling capacitor and a sample hold amplifier, and operates to sample and hold an input signal by using a switched capacitor. An adder circuit of the sample hold circuit adds a ramp calibration signal to the input signal, by inputting the ramp calibration signal generated to have a frequency identical to that of a sampling clock signal and a predetermined slope based on the sampling clock signal, into a sample hold amplifier via a calibration capacitor having a capacitance smaller than that of the sampling capacitor. | 11-12-2009 |
| 20100073214 | DIFFERENTIAL OPERATIONAL AMPLIFIER CIRCUIT CORRECTING SETTLING ERROR FOR USE IN PIPELINED A/D CONVERTER - A telescopic differential operational amplifier circuit for use in a pipelined A/D converter is provided with two auxiliary differential amplifiers connected to two cascode circuits, each including cascode-connected first to fourth transistors. During the sampling phase, first and second switches are turned on to apply a predetermined bias voltage to the gates of first and fourth transistors, and the input terminal of the differential operational amplifier circuit is set to a common mode voltage. During the hold phase, the first and second switches are turned off so that a voltage of each of the gates of the first and fourth transistors change to follow an input signal inputted via the input terminal with coupling capacitors operating as a level shifter of the input signal. Then the differential operational amplifier circuit performs push-pull operation operative only in a transconductance drive region, and is prevented from operating in a slewing region. | 03-25-2010 |
Akira Kurauchi, Kanagawa JP
| Patent application number | Description | Published |
|---|---|---|
| 20080198057 | Analog-to-digital converting circuit - Disclosed is a pipeline ADC in which an operational amplifier is shared between circuit blocks that construct local A/D converters of nth and (n+1)th stages, a sampling capacitor of the nth stage is divided into a plurality of sampling capacitors, and some of the plurality of sampling capacitors thus divided in the nth stage are adopted as sampling capacitors of the (n+1)th stage. | 08-21-2008 |
| 20090146854 | PIPELINE TYPE A/D CONVERTER APPARATUS PROVIDED WITH PRECHARGE CIRCUIT FOR PRECHARGING SAMPLING CAPACITOR - In a pipeline type A/D converter apparatus including A/D converter circuit parts connected in cascade with each other and A/D converting a sample hold signal in a pipeline form, each A/D converter circuit part includes a pre-A/D converter circuit for A/D converting an input signal into a digital signal, and a multiplying D/A converter circuit for D/A converting the digital signal into an analog control signal, and D/A converting the input signal by sampling, holding and amplifying the input signal using a sampling capacitor based on the analog control signal. A precharge circuit precharges a sampling capacitor before sampling so as to attain a predetermined output value in accordance with a digital input to output characteristic substantially adapted to an input to output characteristic of each A/D converter circuit part that presents an output signal corresponding to the input signal to each A/D converter circuit part. | 06-11-2009 |
Atsushi Kurauchi, Saitama JP
| Patent application number | Description | Published |
|---|---|---|
| 20110118960 | KNOCKING DETECTING APPARATUS FOR INTERNAL COMBUSTION ENGINE - A knocking detecting apparatus for an internal combustion engine, which can more accurately perform the knocking determination based on frequency components of the output signal of the knock sensor, is provided. A frequency spectrum analysis of the knock sensor output signal is performed at predetermined angular intervals of the crankshaft rotation angle. Intensities of a plurality of frequency components obtained by the frequency spectrum analysis are stored as time series data. The time series data of the frequency component intensity are binarized, and it is determined whether or not a knocking has occurred based on the binarized time series data. | 05-19-2011 |
| 20110178750 | FREQUENCY SPECTRUM ANALYZING APPARATUS - A frequency spectrum analyzing apparatus for performing a frequency spectrum analysis with respect to a detected value of an operating parameter of an internal combustion engine in synchronism with rotation of the engine, is provided. The operating parameter is sampled at predetermined time intervals, and a sampled value is converted to a digital value. Intensities of first and second elements are calculated with respect to a predetermined number of the sampled values. The first elements and second elements respectively correspond to a plurality of frequency components contained in the detected value, and a phase of the second element differs from a phase of the first element by 90 degrees. Frequency component intensities corresponding to the plurality of frequency components are calculated in synchronism with rotation of the engine, using the first element intensities and the second element intensities. The frequency component intensities are calculated by replacing a part of an integrated value of the first element intensities, and a part of an integrated value of the second element intensities respectively with corresponding preceding calculated values, when an rotational speed of the engine is higher than or equal to a set threshold value. | 07-21-2011 |
| 20110276293 | FREQUENCY SPECTRUM ANALYZING APPARATUS - A frequency spectrum analyzing apparatus for performing a frequency spectrum analysis with respect to a detected value of an operating parameter of an internal combustion engine in synchronism with rotation of the engine, is provided. The operating parameter is sampled at predetermined time intervals, and the sampled value is converted to a digital value. Intensities of first and second elements are calculated with respect to a predetermined number of the sampled values, wherein the first and second elements respectively correspond to a plurality of frequency components contained in the detected value, and a phase of the second element differs from a phase of the first element by 90 degrees. Frequency component intensities corresponding to the plurality of frequencies are calculated in synchronism with rotation of the engine, using the first element intensities and the second element intensities. Offset components contained in the first element intensities and the second element intensities are calculated, and the frequency component intensities are calculated after removing the offset components from the first and second element intensities. | 11-10-2011 |
| 20110282562 | IGNITION TIMING CONTROL SYSTEM FOR INTERNAL COMBUSTION ENGINE - An ignition timing control system for an internal combustion engine, for controlling an ignition timing of the engine, is provided. A charging efficiency of the engine is calculated according to the intake air flow rate and the engine rotational speed which are detected, and a knock limit ignition timing is calculated according to the engine rotational speed and the charging efficiency. A knock correction value is calculated according to the knocking detection result by a knock sensor, and a learning parameter table, in which first and second learning parameters are set, is updated based on the engine rotational speed and the knock correction value when the knocking is detected. The learning parameter table is retrieved according to the engine rotational speed, to calculate the first and second learning parameters. Each-cylinder correction values are calculated corresponding respectively to a plurality of cylinders of the engine using the charging efficiency, the first learning parameter, and the second learning parameter and the ignition timing of the engine is controlled using the knock limit ignition timing and the each-cylinder correction value. | 11-17-2011 |
Naoyuki Kurauchi, Nishio JP
| Patent application number | Description | Published |
|---|---|---|
| 20120078513 | MAP IMAGE DISPLAY DEVICE, MAP IMAGE DISPLAY METHOD, AND COMPUTER PROGRAM - Map image display devices, methods, and programs display a map image in a map display are, and at a prescribed timing, change to a first display mode in which an auxiliary image different from the map image is displayed in a specific area that is part of the map display area, and a portion of the map image corresponding to a first target area is displayed in a part of the display area that excludes the specific area. In response to a prescribed user operation, the devices, methods, and programs read map data of a second target area adjacent to the first target area, and change to a second display mode in which the auxiliary image is removed from the specific area and the map image is expanded into the specific area based on the map data of the second target area. | 03-29-2012 |
Nobukazu Kurauchi, Nagoya JP
| Patent application number | Description | Published |
|---|---|---|
| 20090028242 | IMAGE DATA TRANSMITTING APPARATUS AND METHOD AND IMAGE DATA REPRODUCING APPARATUS AND METHOD - An image data transmitting apparatus and an image data transmitting method are provided which can distribute streaming moving images at a transfer rate in accordance with a transmission band with degradation in image quality being mitigated even at the time of congestion. A priority determining section | 01-29-2009 |
Nobukazu Kurauchi, Aichi JP
| Patent application number | Description | Published |
|---|---|---|
| 20080285953 | Reproduction Apparatus, Reproduction Processing Circuit, Reproduction Method, Reproduction Program, and Computer-Readable Record Medium with Reproduction Program - A reproduction apparatus is provided which is capable of reproducing audio data continuously and unbrokenly, without increasing the storage capacity of a storing means. | 11-20-2008 |
| 20090060470 | Video information recording device, video information recording method, video information recording program, and recording medium containing the video information recording program - A control unit | 03-05-2009 |
| 20090132776 | DATA PROCESSING DEVICE, DATA PROCESSING METHOD, DATA PROCESSING PROGRAM, RECORDING MEDIUM CONTAINING THE DATA PROCESSING PROGRAM AND INTERGRATED CIRCUIT - A data processing device for processing stream data composed of a plurality of frames generated with encoded contents data, which includes a protected storage unit for storing data, being protected from external access, a non-protected storage unit for storing data, a receiving unit for receiving stream data, a separating unit for separating the stream data into protected data including frames necessary for decoding of other frames, and non-protected data not including frames necessary for decoding of other frames, and storing the protected data in the protected storage unit and storing the non-protected data in the non-protected storage unit, and a combining unit for restoring the stream data by combining the protected data stored in the protected storage unit and the non-protected data stored in the non-protected storage unit. | 05-21-2009 |
Norio Kurauchi, Nagoya-Shi JP
| Patent application number | Description | Published |
|---|---|---|
| 20120009344 | PROCESS AND APPARATUS FOR PRODUCING COMPOSITE MATERIAL - A process and an apparatus for producing a composite material utilize a rotatable hollow body that is inclined with an upstream side being higher than a downstream side. A reaction zone is defined within an elongated chamber in the hollow body. Protrusions inwardly extend from an inner peripheral wall of the hollow body adjacent to the reaction zone. Base material is input into the chamber via a base material introduction port and a carbon source vapor is input into the chamber via a carbon source supply port. A heater heats the reaction zone to a temperature at which carbon nanotubes form on the base material from the carbon source vapor. The protrusions catch base material disposed on the inner peripheral wall of the hollow body when the hollow body rotates and then drop the base material through the reaction zone so that the base material contacts the carbon source vapor. | 01-12-2012 |
Osamu Kurauchi, Aichi-Ken JP
| Patent application number | Description | Published |
|---|---|---|
| 20090120227 | Method of Designing Gear Using CAD System, and Gear - The invention is a method of designing a gear, the method including: a first modeling step of modeling one tooth flank ( | 05-14-2009 |
Takahiro Kurauchi, Osaka JP
| Patent application number | Description | Published |
|---|---|---|
| 20090253057 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR AND IMAGE FORMATION DEVICE PROVIDED WITH THE SAME - An electrophotographic photoreceptor comprising a conductive support and a photosensitive layer obtained by laminating at least a charge generation layer and a charge transport layer containing a charge transport material in this order on the conductive support, the photosensitive layer being provided with a surface protective layer on the surface thereof, wherein the protective layer contains at least filler particles which exhibit a dispersed state defined by Rf given by the following equations (1) and (2): | 10-08-2009 |
| 20110104600 | ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR AND IMAGE FORMING APPARATUS USING THE SAME - A function separation type electrophotographic photoconductor comprising: a conductive support; an undercoat layer formed on the conductive support; a charge generation layer formed on the undercoat layer; and a charge transfer layer formed on the charge generation layer, the undercoat layer containing at least a binder resin and metal oxide microparticles subjected to surface treatment with anhydrous silicon dioxide, the charge transfer layer containing at least a binder resin and an enamine compound represented by the following general formula (1): | 05-05-2011 |
Toshiharu Kurauchi, Tsukuba-Shi JP
| Patent application number | Description | Published |
|---|---|---|
| 20100159787 | METHOD AND APPARATUS FOR MANUFACTURING SEALED PANEL AND METHOD AND APPARATUS FOR MANUFACTURING PLASMA DISPLAY PANEL - A method for manufacturing a sealed panel having a first substrate and a second substrate, including: a melting step of melting a sealing material which does not contain a binder for making the sealing material into paste form; a coating step of applying the melted sealing material onto a surface of the second substrate; and a sealing step of laminating the first substrate and the second substrate via the sealing material applied onto the surface of the second substrate. | 06-24-2010 |
| 20100167618 | METHOD AND APPARATUS FOR MANUFACTURING PLASMA DISPLAY PANEL - A method for manufacturing a plasma display panel in which an electrical discharge gas is introduced into a space between a first substrate and a second substrate which are sealed together, the method including: a first deaeration step of releasing impurity gases from a protective film by heating the first substrate, on which the protective film is formed for withstanding plasma electrical discharge, to 280° C. or more in a vacuum or in a controlled atmosphere; and a sealing step of sealing the front substrate, in which the impurity gases have been released from the protective film, and a rear substrate which are placed in contact with each other. | 07-01-2010 |
Yasunori Kurauchi, Kuki-Shi JP
| Patent application number | Description | Published |
|---|---|---|
| 20080261008 | Anti-reflection film - An anti-reflection film, including: a transparent base film; and an anti-reflection stacked member provided on the hard coating, having, in alternation, a high-refractivity oxide thin film layer and a low-refractivity oxide thin film layer, wherein: an outermost layer of the anti-reflection stacked member is the low-refractivity oxide thin film layer; the low-refractivity oxide thin film layer is a silicon oxide thin film; a thickness of the silicon oxide thin film is in a range of 75 nm or greater, and 100 nm or smaller; the silicon oxide thin film has a first layer on a side of the transparent base film, and a second layer on an outside of the first layer; and a composition ratio Si/O (A) of silicon to oxygen in the first layer and a composition ratio Si/O (B) of silicon to oxygen in the second layer satisfies a relationship, Si/O (A)>Si/O (B). | 10-23-2008 |
Yasunori Kurauchi, Tokyo JP
| Patent application number | Description | Published |
|---|---|---|
| 20090052041 | Anti-Reflection Film and Polarizing Plate Using the Same - An anti-reflection (AR) film has a transparent substrate film; a hard coat layer which is formed on one surface of the transparent substrate film; and an AR layer which is formed on the hard coat layer. And the AR layer has a four-layer stacked structure of alternate high and low refractive index material layers; the total thickness of the low refractive index material layer is in the range 90-130 nm; and the arithmetic mean roughness Ra of the AR layer surface is in the range 1.5-3.0 nm. | 02-26-2009 |
| 20090081472 | Anti-Reflection Film and Polarizing Plate Using the Same - One embodiment of this invention is an anti-reflection (AR) film including a transparent substrate film; a hard coat layer; and an AR layer produced by a dry coating technique, wherein the hard coat layer and the AR layer are formed on at least one side of the transparent substrate film, and a strain, at which the AR film cracks when stretched at a constant rate of 1 mm/min. or less, is in the range 0.65-1.10%. | 03-26-2009 |