Patent application number | Description | Published |
20090020848 | HIGH-FREQUENCY TRANSISTOR - A high-frequency transistor includes an intrinsic region provided to form an active element on the substrate, plural source and drain fingers alternately located with each other in the intrinsic region in parallel, each including a strip-form interconnect metal layer and contacts formed thereon, plural gate fingers respectively formed between the source and drain fingers and each gate finger including a strip-form gate semiconductor layer, a connecting region provided on the substrate adjacent to and outside of the intrinsic region, plural gate connection semiconductor layers provided in the connecting region according to groups of the gate fingers, each group including some gate fingers adjacent to each other, each gate connection semiconductor layer being connected to end portions of the some gate fingers, and gate connection interconnect metal layers respectively formed on the gate connection semiconductor layers connected thereto through third contacts. | 01-22-2009 |
20090039955 | VARIABLE RESISTOR, FILTER, VARIABLE GAIN AMPLIFIER AND INTEGRATED CIRCUIT USING THE VARIABLE RESISTOR - A variable resistor formed on a silicon substrate, and changing a resistance value between an input terminal and an output terminal, includes a plurality of first resistors each having one end connected in common to the input terminal, and each having other end, a plurality of second resistors each having a resistance value smaller than the first resistors, and each having one end connected to the other end of any one of the first resistors, and a switch group interposed between the input terminal and the output terminal, and selecting one from the first resistors, and further, selecting at least one from the second resistors connected to the other end of the selected first resistor. | 02-12-2009 |
20090067555 | FILTER CIRCUIT, RECEIVER USING THE SAME AND FILTERING METHOD - A filter circuit includes a sampler which samples an input signal to generate a first analog signal, an analog-to-digital converter which converts the first analog signal into a first digital signal, a digital filter which extracts a signal component out of a desired band from the first digital signal to generate a second digital signal, a digital-to-analog converter which converts the second digital signal into a second analog signal, a delay device which imparts a signal delay to the first analog signal to supply a third analog signal, the signal delay being equal to a delay time of the second analog signal relative to the first analog signal, and a subtracter which subtracts the second analog signal from the third analog signal to generate an output signal. | 03-12-2009 |
20090219186 | FILTER CIRCUIT, RECEIVER USING THE SAME, AND FILTERING METHOD USING THE SAME - According to an aspect of the present invention, there is provided a filter circuit including: an ADC that converts a first analog signal into a first digital signal; a digital filter that extracts an interference component from the first digital signal and generates a second digital signal; a DAC that converts the second digital signal into a second analog signal; a delayer that delays the first analog signal based on a delay caused in the second analog signal and generates a delayed first analog signal; a subtractor that subtracts the second analog signal from the delayed first analog signal and generates an output signal; and a controller that controls the digital filter based on a remaining interference component that is remaining in the output signal. | 09-03-2009 |
20090302949 | BIAS CIRCUIT AND AMPLIFIER USING THE SAME - A bias circuit including: a first current source which generates a first current; a second current source which generates a second current having a temperature-to-output current characteristic that an output current characteristic increases or decreases with a change in temperature to intersect with that of the first current; a first current-voltage conversion circuit which converts the first current to a first voltage; a second current-voltage conversion circuit which has an input terminal and converts a current inputted into the input terminal to a second voltage; a comparison circuit which compares the first voltage and the second voltage and generates a third current according to a result of the comparison; an addition unit which adds the third current to the second current and inputs a resulting current to the input terminal; and a voltage-current conversion circuit which converts the second voltage to a fourth current for bias. | 12-10-2009 |
20100203851 | WIRELESS TRANSMISSION DEVICE AND WIRELESS TRANSMISSION METHOD - A wireless transmission device includes an adding/subtracting unit configured to subtract a second signal and a third signal from a first signal to generate the second signal; a modulating unit configured to modulate the second signal to generate a fourth signal; a demodulating unit configured to demodulate the fourth signal to generate the third signal; and a transmitting unit configured to transmit the fourth signal. | 08-12-2010 |
20100225397 | AMPLIFIER AND RADIO - An amplifier includes: a substrate; first to fourth amplifying units arranged on the substrate and each having first and second terminals, and each amplifying first and second signals to generate first and second amplified signals; a first inductive line arranged on the substrate, connecting the first terminal of the first amplifying unit and the first terminal of the second amplifying unit, and having a linear portion and a bending portion; a second inductive line arranged on the substrate, connecting the second terminal of the second amplifying unit and the first terminal of the third amplifying unit, and having a linear portion and a bending portion; a third inductive line arranged on the substrate, connecting the second terminal of the third amplifying unit and the first terminal of the fourth amplifying unit, and having a linear portion and a bending portion; a fourth inductive line arranged on the substrate, connecting the second terminal of the fourth amplifying unit and the second terminal of the first amplifying unit, and having a linear portion and a bending portion; and a fifth inductive line which establishes magnetic field coupling with the first to fourth inductive lines, and has third and fourth terminals, combines the plurality of the first amplified signals amplified to output the first combined signal from the third terminal, and combines the plurality of the second amplified signals to output the second combined signal from the fourth terminal. | 09-09-2010 |
20110116558 | WIRELESS TRANSMISSION APPARATUS USING CARTESIAN LOOP - In one embodiment, a wireless transmission apparatus is disclosed. The apparatus includes a generator unit, an amplitude adjuster unit, a phase adjuster unit, and a setting unit. The generator unit generates an amplitude control signal that minimizes an amplitude difference and a phase control signal that minimizes a phase difference in a state in which a power is set during an OFF period of a switch. The amplitude adjuster unit adjusts an amplitude of a feedback RF signal according to the amplitude control signal during an ON period of the switch. The phase adjuster unit adjusts a phase of a local signal according to the phase control signal during the ON period. The setting unit sets, for a Cartesian loop, a first loop gain when the switch is OFF, and a second loop gain higher than the first loop gain when the switch is turned from OFF to ON. | 05-19-2011 |
20120034875 | RADIO APPARATUS - A radio apparatus capable of correcting a direct current offset with high accuracy in a short time is provided. A radio apparatus according to an embodiment includes a first amplifier amplifying a signal inputted to an input terminal with amplification gain determined by a variable resistor to generate a first amplified signal, and a second amplifier amplifying the first amplified signal to generate a second amplified signal. Further, the radio apparatus includes a first correcting unit correcting a direct current offset of the first amplifier, and a second correcting unit correcting a direct current offset of the second amplifier. The radio apparatus also includes a reference voltage source or reference current source supplying a reference voltage or reference current for referring a direct current offset to the first amplifier and the second amplifier, again controller controlling the amplification gain of the first amplifier; and a correction controller controlling the gain controller to set the amplification gain to maximum and controlling the first and second correcting units to perform correction of the second correcting unit based on the second amplified signal obtained by inputting the reference voltage or the reference current to an input terminal of the second amplifier, and thereafter perform correction of the first correcting unit based on the second amplified signal obtained by inputting the reference voltage or the reference current to an input terminal of the first amplifier. | 02-09-2012 |
Patent application number | Description | Published |
20100228451 | HYDRAULIC PRESSURE CONTROLLING APPARATUS - A hydraulic pressure controlling apparatus includes a hydraulic pressure controlling portion controlling a hydraulic pressure supplied to plural engagement elements of an automatic transmission apparatus, a mechanical oil pump supplying the hydraulic pressure to the hydraulic pressure controlling portion, an electric oil pump supplying the hydraulic pressure to a starting shift stage engagement element, and an electronic controlling portion controlling operations of the hydraulic pressure controlling portion, a power source and the electronic oil pump based on a signal indicating a predetermined state of a vehicle, wherein the electronic controlling portion controls the hydraulic pressure controlling portion so as to forbid a shifting to a shift stage, which is likely to induce an interlock at the automatic transmission apparatus, based on an engagement of the starting shift stage engagement element in a case where the electronic controlling portion determines that the electric oil pump is in an on-fail state. | 09-09-2010 |
20100228452 | HYDRAULIC PRESSURE CONTROLLING APPARATUS - A hydraulic pressure controlling apparatus includes a hydraulic pressure controlling portion controlling a hydraulic pressure supplied to engagement elements of an automatic transmission apparatus, a mechanical oil pump supplying the hydraulic pressure to the hydraulic pressure controlling portion, an electric oil pump supplying the hydraulic pressure to a starting shift stage engagement element, a first check valve provided at a first hydraulic conduit, allowing a supply of the hydraulic pressure from the electric oil pump to the starting shift stage engagement element and interrupting an inverse supply of the hydraulic pressure, and an electronic controlling portion controlling operations of the hydraulic pressure controlling portion, a power source and the electronic oil pump, wherein the electric oil pump supplies the hydraulic pressure to the starting shift stage engagement element via the first hydraulic conduit, which differs from a second hydraulic conduit and at which the first check valve is provided. | 09-09-2010 |
Patent application number | Description | Published |
20080227005 | PATTERN FORMING DEVICE AND PATTERN FORMING METHOD - A pattern forming device has a transfer unit which transfers a pattern image formed on a planographic plate held by a printing frame onto the surface of a glass plate held on an XY stage. After the glass plate and the planographic plate have been positioned by the XY stage, the transfer unit moves a stroke roller disposed on the rear surface side of the planographic plate in an arrow direction so that the stroke roller may be pressed against the planographic plate, thereby transferring the pattern image onto the glass plate by an electric field while, at the same time, stroking solvent components interposed between the planographic plate and the glass plate. | 09-18-2008 |
20090028609 | PATTERN FORMING APPARATUS AND PATTERN FORMING METHOD - A pattern forming apparatus includes an intaglio having a pattern of depressions, developing units which form a first potential difference with the intaglio, supply a liquid developer containing charged phosphor particles to the pattern and develop by aggregating the phosphor particles in the depressions, and a transfer roller which forms a second potential difference with the developed intaglio and a glass sheet arranged in opposed relation to each other and sequentially transfers the phosphor particles aggregated in the depressions to the glass sheet. | 01-29-2009 |
20090053632 | Pattern forming apparatus and pattern forming method - A pattern forming apparatus includes a depressed plate holding patterns by developers, a charging device for charging the depressed plate, a developing device for developing a red pattern, a developing device for developing a green pattern, a developing device for developing a blue pattern, and a stage for holding the charging device and the developing devices and moving them relative to the depressed plate. The charging device, the red developing device, the green developing device and the blue developing device pass along the depressed plate sequentially to perform the charging process, the red developing process, the green developing process and the blue developing process simultaneously. | 02-26-2009 |
20090060577 | PLATE, AND PATTERN FORMING DEVICE AND PATTERN FORMING METHOD USING THE SAME PLATE - A pattern forming device has an original plate for pattern formation having pattern-shaped concave portions in a high-resistance layer. When phosphor particles collected in the concave portions are transferred to a glass plate, an electric field is formed between separate electrodes and a transfer roller, and a high-frequency voltage is applied to a common electrode to apply a voltage between the separate electrodes, hence to generate ultrasonic waves from a piezoelectric layer. | 03-05-2009 |
20090087773 | LIQUID DEVELOPING AGENT AND PROCESS FOR PRODUCING THE SAME - A liquid developing agent includes a toner particle having a nuclear particle and a covering layer containing a wax, provided on the surface of the nuclear particle in which the wax has at least one of polar groups and aromatic substituent groups, is substantially insoluble in an electric insulation solvent at room temperature, has a melting point below a boiling point of the electric insulation solvent, and is dissolved in the insulation solvent at a temperature higher than the melting point. | 04-02-2009 |
20090123855 | PATTERN FORMING METHOD - By using an intaglio plate for holding a pattern formed by a developing agent, a transfer device for transferring patterns developed on the intaglio plate to a transfer object medium, and a baking chamber for eliminating an electrode layer after transfer or heightening resistance thereof, the patterns developed on the intaglio plate are transferred onto the electrode layer disposed at the opposite side of the transfer object medium, and then heated in the baking chamber, whereby the electrode layer is eliminated or heightened in resistance. | 05-14-2009 |
20120055536 | ORGANIC PHOTOVOLTAIC CELL AND METHOD FOR MANUFACTURING THE SAME - According to one embodiment, there is provided an organic photovoltaic cell including substrate having a plurality of inclined surfaces and a plurality of solar cells formed on the inclined surfaces of the substrate. Each of the solar cells includes a pair of electrodes and a bulk heterojunction active layer interposed between the electrodes, the active layer containing a p-type organic semiconductor and an n-type organic semiconductor. An inclination of each of the inclined surfaces of the substrate against the horizontal plane is in the range of 60 to 89°, and the active layer exhibits a transmission of light within visible wavelength range of 3% or greater. | 03-08-2012 |
20120234389 | SOLAR CELL MODULE - A solar cell module according to an embodiment includes a solar cell device and a support structure supporting the solar cell device. The solar cell device is a belt-like solar cell device including first portions arranged in one direction such that major surfaces thereof face each other, and a second portion interposed between the first portions. The edges of the first portions that correspond to a pair of long sides of the solar cell device are parallel to each other. Two adjacent first portions incline forwardly and backwardly with respect to the one direction. The second portion includes one or more planar or curved surfaces to connect the two adjacent first portions to each other. | 09-20-2012 |
20120248878 | POLYMER MATERIAL, SOLAR CELL USING THE SAME, AND SOLAR PHOTOVOLTAIC GENERATION SYSTEM - According to one embodiment, a polymer material includes two or more different repeating units each containing a quinoxaline backbone. At least one of the repeating units includes a halogen atom. | 10-04-2012 |
20130213461 | PHOTOVOLTAIC CELL AND METHOD FOR MANUFACTURING THE SAME - According to one embodiment, there is provided a method for manufacturing a photovoltaic cell. The method includes forming a structure including a pair of electrodes which are arranged apart from each other, and a hetero-junction type photoelectric conversion layer interposed between the electrodes and containing a p-type semiconductor and a n-type semiconductor, and annealing the photoelectric conversion layer thermally while applying an AC voltage having a frequency of 0.01 kHz or more and less than 1 kHz to control a mixed state of the p-type semiconductor and n-type semiconductor in the photoelectric conversion layer. | 08-22-2013 |