141results about How to "High-speed driving" patented technology

In a power toothbrush, an interchangeable brush head is directly fitted to a front end portion of a drive shaft of an actuator. The actuator comprises a first magnetic circuit for moving the drive shaft reciprocally in an axial direction of the drive shaft, and a second magnetic circuit for rotating the drive shaft around a center axis of the drive shaft. The first magnetic circuit and the second magnetic circuit are independently excited by independent driving current having predetermined frequencies and a predetermined phase difference therebetween. Thus, the brush head fitted to the drive shaft can be moved in a composition of reciprocal linear movement and reciprocal rotation. The actuator does not include conventional mechanical elements such as gears or cams so that the actuator can move the drive shaft much faster than that of the conventional actuator.

A check valve (8) and a booster (9) are inserted in parallel in a supplied fuel line (6) connecting a common rail (5) and an injection valve (7), a piston (10E) of a hydraulic circuit (10) is driven for positioning by a piezoelectric actuator (PA-1), the pressures in a chamber (9Db) of the booster (9) and the pressure in a fuel chamber (7G) of the injection valve (7) are selectively lowered by controlling the alignment state between ports (10Eb), (10Ec) provided in the piston (10E) to communicate with a low-pressure portion and an opening 10Aa of a first chamber 10A and an opening (10Ba) of a second chamber (10B) of cylinder (10C), whereby the pressure of the fuel supplied to the fuel reservoir (7B) of the injection valve (7) is rapidly switched to one or the other of high-pressure fuel from the common rail (5) and pressure-boosted high-pressure fuel from the booster (9).

A plurality of rectangle semiconductor substrates are attached to a single mother glass substrate. A pixel structure is determined so that even if a gap or a an overlapping portion is generated in a boundary between a plurality of semiconductor substrates, a single-crystal semiconductor layer does not overlap with the gap or the overlapping portion. Two TFTs are located in a first unit cell including the first light emitting element, four TFTs are located in a second unit cell including the second light emitting element, and no TFT is located in a third unit cell including the third light emitting element. A boundary line is between the third unit cell and a fourth unit cell.

A miniaturized transistor having excellent electrical characteristics is provided with high yield. Further, a semiconductor device including the transistor and having high performance and high reliability is manufactured with high productivity. In a semiconductor device including a transistor in which an oxide semiconductor film including a channel formation region and low-resistance regions between which the channel formation region is sandwiched, a gate insulating film, and a gate electrode layer whose top surface and side surface are covered with an insulating film including an aluminum oxide film are stacked, a source electrode layer and a drain electrode layer are in contact with part of the oxide semiconductor film and the top surface and a side surface of the insulating film including an aluminum oxide film.

A creamed reclaimed rubber and its production are disclosed. It consists of 20-50 mesh vulcanized rubber powder 100 proportion, paraffin oil as solvent 70-90 proportion, solid coumarone 10-30 proportion as solvent, catalyst and catalyst accessory phthalic acid anhydride 2-5 proportion, methyl aldehyde aqueous solution 4-6 proportion, 1,3-benzenediol 0.2-0.5 proportion. The process is carried out by adding vulcanized rubber powder into vertical de-polymerizer, adding into solvent, catalyst and catalyst accessory successively, closing feeding open, agitating, raising temperature to 160-180 deg. C, controlling pressure to 0.5-0.7 MPa, reacting for 2-2.5 hrs, lowering temperature, releasing gas, discharging and filtering to obtain final product. It's simple, has stable quality, waterproof and antiseptic performances and no environmental pollution. It can be used to synthesize rubber with petrochemical asphalt and to paving road.

A liquid crystal display device includes a pixel having a first to nth (n is a natural number of 2 or more) subpixels and a circuit. To the circuit N (N is a natural number of 2 or more) wirings for supplying a digital signal with N bits and first to nth wiring groups having M (M is a natural number of 2 or more) wirings for supplying M different voltages are electrically connected. The liquid crystal display device has a function of converting the digital signal into n analog signals by using the M voltages supplied to the first to nth wiring groups and inputting the n analog signals to first to nth subpixels. The first to nth subpixels each include an electrode for driving a liquid crystal element.

The present invention is to provide a memory device including: a plurality of memory cells that each include a memory element having a memory layer and first and second electrodes that sandwich the memory layer, the plurality of memory cells being divided into memory blocks of m columns by n rows (m and n are each an integer of not less than 1, m+n≧3), the memory elements in the same memory block having the first electrode that is formed of a single layer in common to the memory elements; and a voltage application unit that applies any voltage to the first electrode of the memory block.

Disclosed herein is a display apparatus, including, a pixel section, a plurality of scanning lines, a plurality of signal lines, and a driving circuit.

A four-line CCD sensor is structured by line sensors R, G, B in which color filters are respectively disposed on surfaces of light receiving elements, and a line sensor BK at which no color filter is disposed. Amplitudes of signals which are outputted from the line sensors R, G, B at a time of reading a color document, and an amplitude of a signal which is outputted from the line sensor BK at a time of reading a monochrome document are adjusted so as to be substantially equal to one another. In a case in which a color document is read, outputs of the line sensors R, G, B are selectively provided, and in a case in which a monochrome document is read, output of the line sensor BK is selectively provided.

An a-Si film is patterned into a linear shape (ribbon shape) or island shape on a glass substrate. The upper surface of the a-Si film or the lower surface of the glass substrate is irradiated and scanned with an energy beam output continuously along the time axis from a CW laser in a direction indicated by an arrow, thereby crystallizing the a-Si film. This implements a TFT in which the transistor characteristics of the TFT are made uniform at high level, and the mobility is high particularly in a peripheral circuit region to enable high-speed driving in applications to a system-on glass and the like.

A voltage with a predetermined pattern is applied to liquid crystals to drive the liquid crystals during a unit drive period of the liquid crystals and an application pattern according to the gradation data is set taking into account a value obtained by integrating the amount of transmitted light of liquid crystals at various points in time when each application pattern is applied to the liquid crystals. This allows a fine gradation display even if the liquid crystals are driven by only ON / OFF of a maximum rated voltage. As a result, it is possible to drive the liquid crystals at high speed and produce a multi-gradation display.

Disclosed herein is a method and apparatus for driving a plasma display panel in which signal distortion can be minimized while reducing contour noise. According to the present invention, the method of driving the plasma display panel includes the steps of performing a first inverse gamma correction operation on externally inputted video data, performing a confined error diffusion operation on the first inverse gamma corrected video data within a range of a dither mask pattern of an upper gray scale, dithering the confined error diffused video data by using a plurality of dither mask patterns which are separated every gray scale and every frame, performing a second inverse gamma correction operation on the dithered video data, and mapping the second inverse gamma corrected video data to a sub-field pattern in which one frame includes one or more selective writing sub-fields and one or more selective erasing sub-fields.

A technique is provided that reduces dullness of a potential provided to a line such as gate line on an active-matrix substrate to enable driving the line at high speed and, at the same time, reduces the size of the picture frame region. On an active-matrix substrate (20a) are provided gate lines (13G) and source lines. On the active-matrix substrate (20a) are further provided: gate drivers (11) each including a plurality of switching elements, at least one of which is located in a pixel region, for supplying a scan signal to a gate line (13G); and lines (15L1) each for supplying a control signal to the associated gate driver (11). A control signal is supplied by a display control circuit (4) located outside the display region to the gate drivers (11) via the lines (15L1). In response to a control signal supplied, each gate driver (11) drives the gate line (13G) to which it is connected.

A first level metal interconnection line in a layer below a third level metal interconnection line serving as a main word line MWL is used as a shunting interconnection line and electrically connected to a first level polysilicon interconnection line constituting a sub word line SWL at prescribed intervals. By applying a hierarchical word line structure and a word line shunting structure both, a word line is driven into a selected state at high speed without increasing an array occupancy area and manufacturing steps.

A method for producing a semiconductor device includes the steps of forming first and second pillar-shaped semiconductors on a substrate at the same time so as to have the same height; forming a first semiconductor layer by doping a bottom region of the first pillar-shaped semiconductor with a donor or acceptor impurity to connect the first semiconductor layer to the second pillar-shaped semiconductor; forming a circuit element including an upper semiconductor region formed by doping an upper region of the first pillar-shaped semiconductor with a donor or acceptor impurity; forming a first conductor layer in the second pillar-shaped semiconductor; forming first and second contact holes that are respectively connected to the first and second pillar-shaped semiconductors; and forming a wiring metal layer that is connected to the upper semiconductor region and the first conductor layer through the first and second contact holes, respectively.

A construction machine according to the present invention includes a variable displacement hydraulic pump (11, 12) driven by a prime mover (10), a single traveling actuator (5) driven with pressure oil discharged from the hydraulic pump (11), a plurality of work actuators (2a, 4d to 4f) driven with the pressure oil discharged from the hydraulic pump (11, 12), a plurality of control valves (13 to 17) that control flows of the pressure oil from the hydraulic pump (11) to each of the traveling actuator (5) and the plurality of work actuators (2a, 4d to 4f), a detection means (24) for detecting a drive command for the traveling actuator (5), and a flow rate control means (11a, 30, 40, 43) for increasing a maximum flow rate of the hydraulic pump (11) when the drive command for the traveling actuator (5) is detected with the detection means (24).

A liquid crystal display apparatus which have a circular polarizer and a liquid crystal display in a stack. The liquid crystal display has a chilral nematic liquid crystal layer between substrates, and on the mutually opposite sides of the substrates, electrodes and aligning layers are formed. The liquid crystal switches between a planar alignment state and a focal-conic alignment state depending on the voltage applied thereto through the electrodes. In a planar state, light reflected by the electrodes is absorbed by the circular polarizer, and a black display is made. In a focal-conic state, light reflected by the electrodes passes through the circular polarizer, and a white display is made. The liquid crystal is driven by a chain of voltage pulses including a reset step of resetting the liquid crystal to a homeotropic state, a selection step of selecting the alignment state of the liquid crystal under zero-volt application and an evolution step of causing the liquid crystal to evolve to the selected alignment state.

Provided is a tire applicable to wheel vehicles. The tire is a polyurethane open-structure tire which has a supporting and buffering structure and is free of inflation and tire burst. According to the invention, bearing and buffering structures of existing pneumatic tires are changed, and a reasonable polyurethane formula is utilized; therefore, the advantages of pneumatic tires are retained, defects of pneumatic tires are overcome, performance of the tire is improved and enhanced, the service life of the tire is prolonged, capability of the tire in dealing with complex road conditions is enhanced, a production process for the tire is simplified, and production cost for the tire is reduced.

An apparatus for driving a display panel including a plurality of cells coupled to a plurality of gate lines and a plurality of data lines, a gate driver configured to output a gate selection signal to a shared gate line, and a data driver configured to output data signals to the cell array. The shared gate line includes a first gate line and a second gate line, the first and second gate lines sharing the gate selection signal.

A light emitting diode driving device for driving an LED includes (i) a driving pulse current generating circuit for generating a driving current for the LED in accordance with a driving pulse signal supplied from outside and (ii) a differentiating circuit for generating a peaking current obtained by differentiating the driving pulse signal. A current that is equal to the sum of the driving current and the peaking current flows to the LED. The light emitting diode driving device further includes a peaking control circuit for controlling the magnitude of the peaking current generated from the differentiating circuit.

A manufacturing method of an SOI substrate and a manufacturing method of a semiconductor device are provided. When a large-area single crystalline semiconductor film is formed over an enlarged substrate having an insulating surface, e.g., a glass substrate by an SOI technique, the large-area single crystalline semiconductor film is formed without any gap between plural single crystalline semiconductor films, even when plural silicon wafers are used. An aspect of the manufacturing method includes the steps of disposing a first seed substrate over a fixing substrate; tightly arranging a plurality of single crystalline semiconductor substrates over the first seed substrate to form a second seed substrate; forming a large-area continuous single crystalline semiconductor film by an ion implantation separation method and an epitaxial growth method; forming a large-area single crystalline semiconductor film without any gap over a large glass substrate by an ion implantation separation method again.

Spindle-motor hydrodynamic bearing configuration having conical taper seals on the thrust-bearing ends. The spindle motor shaft is supported in a bore through the rotor by neighboring radial and thrust hydrodynamic bearings constituted through radial micro-gaps cylindrically between the shaft and rotor, axial micro-gaps between thrust plates on either shaft end and recesses endwise in the rotor bore, dynamic-pressure-generating grooves in the micro-gap forming surfaces, and lubricant retained continuously in the radial and axial micro-gaps. The thrust plates are at least partially conical, tapering axially outward. A ring fitted in each rotor bore recess has a conical inner peripheral surface corresponding to the opposing conical surface of the thrust plate, forming a taper seal sloped with respect to the rotational axial center of the motor. The gap clearance dimension gradually expands heading axially outward, wherein the lubricant forms an axial-end gas-liquid interface to function as a taper seal.

A miniaturized transistor having excellent electrical characteristics is provided with high yield. Further, a semiconductor device including the transistor and having high performance and high reliability is manufactured with high productivity. In a semiconductor device including a transistor in which an oxide semiconductor film including a channel formation region and low-resistance regions between which the channel formation region is sandwiched, a gate insulating film, and a gate electrode layer whose top surface and side surface are covered with an insulating film including an aluminum oxide film are stacked, a source electrode layer and a drain electrode layer are in contact with part of the oxide semiconductor film and the top surface and a side surface of the insulating film including an aluminum oxide film.

A liquid crystal display includes a first substrate and a second substrate facing each other, a liquid crystal layer interposed between the first and second substrates and including liquid crystal molecules, a first gate line and a second gate line formed on the first substrate and transferring gate signals, a first voltage line formed on the first substrate and transferring voltage of predetermined intensity, a data line formed on the first substrate and transferring a data signal, a first switching element connected to the first gate line and the first voltage line, a second switching element connected to the second gate line and the data line, and a pixel electrode connected to the first switching element and the second switching element. A gate-on signal is applied to the first gate line earlier than the second gate line.

A marine water spraying type propeller comprises a water spraying pipe body, a water inlet valve, backward water inlet pipes, a hydro-generator impeller wheel, an electric water spraying machine, backward water spraying pipes and a water outlet valve. The marine water spraying type propeller is characterized in that at least one cylindrical water spraying pipe is arranged on the outer wall, on the bottom of a ship, of a ship body, one end of the cylindrical water spraying pipe is provided with a water inlet, the other end of the cylindrical water spraying pipe is provided with a water spraying opening, the water inlet valve and water wheel blades of a hydroelectric generator are arranged in the pipe wall, close to the end provided with the water inlet, of the water spraying pipe, the water outlet valve and the electric water spraying machine are arranged in sequence in the water spraying pipe close to the end provided with the water spraying opening, the electric water spraying machine is fixed on the pipe wall of the water spraying pipe through a stand, and a closed blade water wheel is arranged in the pipe opening of the water spraying machine. The marine water spraying type propeller does not use a screw propeller for spraying, but uses hydraulic pressure for spraying, and is assisted by the rotation of the water wheel blades. Driving at high speed can be achieved, and noise can be reduced. The propeller is suitable for various ships and particularly suitable for a warship and a submarine, and quickness and sound concealing effects can be achieved.

The invention discloses a high-speed and heavy-duty replaceable triangular crawler wheel assembly. The high-speed and heavy-duty replaceable triangular crawler wheel assembly comprises a rubber crawler, a supporting frame, a driving wheel, guiding wheels, tensioning guiding wheels, tensioning devices and load-bearing wheels. The outer ring of the high-speed and heavy-duty replaceable triangular crawler wheel assembly is covered with the rubber crawler. The driving wheel, the guiding wheels, the tensioning guiding wheels, the tensioning devices and the load-bearing wheels are arranged on the supporting frame. The driving wheel is located at the upper portion of the rubber crawler and is connected with a chassis wheel shaft. The guiding wheels and the tensioning guiding wheels are located atthe two ends of the bottom of the rubber crawler, and the load-bearing wheels are arranged on the middle of the rubber crawler. The tensioning devices comprise oil cylinders, energy accumulators andtensioning wheel connecting frames. The oil cylinders are connected with the energy accumulators to form gas-liquid springs. The oil cylinders are connected to oil cylinder seats of the supporting frame, the lower ends of the tensioning wheel connecting frames are connected with the supporting frame to form hinge points, the tensioning guiding wheels are arranged on the middles of the tensioning wheel connecting frames, and the oil cylinders are connected with the upper ends of the tensioning wheel connecting frames. The high-speed and heavy-duty replaceable triangular crawler wheel assembly is simple and reasonable in structure, good in stability, capable of realizing fast replacement and assembling, capable of meeting the requirements of high-speed and heavy-duty, and capable of improving the ability of vehicles to deal with complex geological conditions, such as muddy and soft conditions.