31results about How to "Suppressing cost" patented technology

The apparatus includes a receiver unit which receives data; and a guard interval combining unit which combines the whole of the guard interval of the data, which is received by the receiver unit, with the valid symbol. This arrangement makes it possible to efficiently improve reception characteristic by effectively using the guard interval, while suppressing the apparatus size and the cost.

Provided is a reactor that enables high inductance to be generated with stability in a wide current range, while minimizing noise, processing cost, and eddy-current loss. The reactor (D1) has the ratio (t / W) of the width (W) to the thickness (t) of a conductive member that composes an air-core coil configured to be 1 or less, and preferably, 1 / 10 or less. Furthermore, the reactor also has the absolute value of a value ((L1−L2) / L3) that has had: the difference (L1−L2) between; the space interval (L1) between an inner wall face of a first core member (3) and an inner wall face of a second core member (4), at the innermost circumference position of the air-core coil (1); and the space (L2) between the inner wall face of the first core member (3) and the inner wall face of the second core member (4), at the outermost circumference position of the air-core coil (1); divided by an average value (L3); configured to be 1 / 50 or less. The ratio (R / W) of the radius (R), from the axis-center (O) of the air-core coil (1) to the outer circumference of the air-core coil (1), to the width (W) of the air-core coil (1) (conductive member), is 2=R / W=4.

On the light-entering surface side of a base material 10, a coating layer 11 in which a high-refractive layer and a low-refractive layer are sequentially disposed alternately on one on the other is provided for blocking infrared radiation. One of the high-refractive layers is configured by an ITO film 11a so that the conductivity is increased on the surface of the coating layer. Herein, in view of preventing, to a further extent, the attachment of dirt and dust by providing the conductivity to the surface of the coating layer, it is desirable if the outermost high-refractive layer is made of a transparent conductive material. Moreover, it is desirable if the total layer thickness is 140 nm or smaller for the refractive layers formed outside of the high-refractive layer made of the transparent conductive material.

A semiconductor switching element drive circuit includes a semiconductor that passes main current between first and second terminals when voltage is imposed to a gate terminal, and an over current protection circuit that decreases the main current when the main current is judged to become over current for a certain period when exceeding a predetermined current value when current value or voltage value proportional to an amplitude of the main current exceeds a threshold value. The circuit also includes a short circuit protection circuit that decreases gate voltage imposed to the gate terminal earlier than a fall of the main current produced by the over current protection circuit when the main current becomes larger than the over current in a period shorter than the certain period, and a threshold value change circuit that decreases a threshold value when the short circuit protection circuit decreases the main current.

A PI control section performs a PI control on a deviation which is a difference between a DC voltage command and a DC voltage, and outputs a d-axis current command value. A PI control section performs a PI control on a deviation which is a difference between the d-axis current command value and a d-axis current, and outputs a d-axis voltage command value. Based on the d-axis voltage command value and a q-axis voltage command value, a PWM control section outputs a switching control signal for controlling a switching operation of a converter. A voltage command computation section generates the DC voltage command based on the d-axis voltage command value.

A method for manufacturing a grommet, which is fixed to a wire harness W inserted into an opening portion of a panel P and which is fitted and attached to the opening portion to thereby support the wire harness W on the panel P. The grommet includes peripheral walls that surrounds the wire harness W to form a sound shield space S around the wire harness W, and a soundproof wall that is formed in the sound shield space S so as to cross a longitudinal direction of the wire harness W. The soundproof wall is designed by use of an expression of TL=20 log(p×f)−42.5 where TL designates transmission loss of the soundproof wall, ρ designates surface density of the soundproof wall, and f designates a frequency.

To surely grasp an unlocked state of a cowl member while suppressing cost and time necessary for measures against forgetting of locking of an engine nacelle. An aircraft according to the present invention includes: an engine (3) that includes an engine main body (4, 5) outputting thrust force and an engine nacelle (7) surrounding the engine main body (4, 5); an engine pylon (2) that supports the engine main body (4, 5) to a main wing (1) and axially supports a cowl member (8) to be openable, the cowl member (8) configuring the engine nacelle (7); a locking part (30) that locks the cowl member (8) of the engine nacelle (7) in a closed state; and one or more light emitting sections (15) that are disposed inside the cowl member (8) and show an unlocked state of the cowl member (8).

An optical scanning apparatus capable of suppressing a track error is provided. The apparatus includes a swing mirror supported by a torsional vibration system having a first natural frequency and a second natural frequency that is a double of the first natural frequency, and a driving unit applying a swing torque to the vibration system. The apparatus can detect passage of an optical beam at two locations and output track information of the swing mirror, and perform feedback control. When the feedback control is performed, the apparatus sequentially switches target tracks of scanning in a forward and a backward direction, the phases of the second natural frequency of the target tracks being mutually reversed, calculates an amount of offset compensation based on a difference between the predetermined target track and the track for each scanning in the forward and backward direction, and reflects the amount in the feedback control.

To provide a landing gear storage compartment of an aircraft which can protect accessories installed around a landing gear by blocking jet blast and dust etc. while suppressing the weight and the cost. A landing gear storage compartment 3 of an aircraft 1 includes: a storage bay 31 that stores a landing gear 2 for use in takeoff and landing; and a shielding wall 32, inside of which a wheel assembly 21 of the landing gear 2 stored in the storage bay 31 is arranged, and whose lower side, through which the wheel assembly enters and exits, and whose upper side are opened. An upper opening 32C of the shielding wall 32 is covered with a partition wall 13 that separates a cabin 12 located above the storage bay 31, and the storage bay 31.

A refrigerant heating performance is increased while suppressing an increase in weight or cost. A vehicle air-conditioning device (10) is provided with a heat pump cycle (16) for heating operation in which an electric compressor (50) for compressing refrigerant, a vehicle-cabin-interior condenser (26), a throttle (52), and a vehicle-cabin-exterior heat exchanger (54) are connected in that order via refrigerant piping. An inverter for the electric compressor (50) in which a power element comprising a highly heat-resistant semiconductor device is used is disposed on the electric compressor (50) so that the refrigerant compressed by the electric compressor (50) can be heated by the power element. During heating operation of the heat pump cycle (16), the refrigerant is heated by the power element.

Provided is a reactor that enables high inductance to be generated with stability in a wide current range, while minimizing noise, processing cost, and eddy-current loss. The reactor (D1) has the ratio (t / W) of the width (W) to the thickness (t) of a conductive member that composes an air-core coil configured to be 1 or less, and preferably, 1 / 10 or less. Furthermore, the reactor also has the absolute value of a value ((L1−L2) / L3) that has had: the difference (L1−L2) between; the space interval (L1) between an inner wall face of a first core member (3) and an inner wall face of a second core member (4), at the innermost circumference position of the air-core coil (1); and the space (L2) between the inner wall face of the first core member (3) and the inner wall face of the second core member (4), at the outermost circumference position of the air-core coil (1); divided by an average value (L3); configured to be 1 / 50 or less. The ratio (R / W) of the radius (R), from the axis-center (O) of the air-core coil (1) to the outer circumference of the air-core coil (1), to the width (W) of the air-core coil (1) (conductive member), is 2=R / W=4.

A bead core covering method for covering an annular bead core with a belt-like rubber sheet includes winding the rubber sheet extruded by an extruding machine via a mouth piece around an outer peripheral surface of a rotary drum from a leading end portion, attaching a part in a width direction of the rubber sheet on the outer peripheral surface of the rotary drum to an outer surface of the bead core, which rotates, from the leading end portion before the rubber sheet is wound over an entire periphery of the outer peripheral surface of the rotary drum, and wrapping a remaining portion in the width direction of the rubber sheet attached to the outer surface of the bead core along a cross-sectional shape of the bead core.

An optical scanning apparatus capable of suppressing a track error is provided. The apparatus includes a swing mirror supported by a torsional vibration system having a first natural frequency and a second natural frequency that is a double of the first natural frequency, and a driving unit applying a swing torque to the vibration system. The apparatus can detect passage of an optical beam at two locations and output track information of the swing mirror, and perform feedback control. When the feedback control is performed, the apparatus sequentially switches target tracks of scanning in a forward and a backward direction, the phases of the second natural frequency of the target tracks being mutually reversed, calculates an amount of offset compensation based on a difference between the predetermined target track and the track for each scanning in the forward and backward direction, and reflects the amount in the feedback control.

Exemplary embodiments relate to providing an optical image measurement apparatus that is capable of acquiring information on birefringence of a sample while suppressing size and cost of the apparatus. In the present disclosure: second measurement light different from first measurement light is generated using a passive optical element that generates light of second polarization state different from first polarization state; a time when the first measurement light is irradiated onto a sample is adjusted at a first time, and a time when the second measurement light is irradiated onto the sample is adjusted at a second time different from the first time.

An operation timing verifying apparatus and program for accurately verifying operation timings of a semiconductor integrated circuit in design with suppressing design time and cost. The operation timing verifying apparatus and program sets an unreal corner condition that all delay elements present a maximum delay as an operating condition, performs operation timing analysis in the operating condition, thereby extracting an operation-violating circuit path, if any, from a circuit layout, sets a real corner condition that at least one element type of delay elements from among the delay elements present a maximum delay as the operating condition and performs the operation timing analysis on only the operation-violating circuit path to determine again whether an operation violation exists therein.

A semiconductor switching element drive circuit includes a semiconductor that passes main current between first and second terminals when voltage is imposed to a gate terminal, and an over current protection circuit that decreases the main current when the main current is judged to become over current for a certain period when exceeding a predetermined current value when current value or voltage value proportional to an amplitude of the main current exceeds a threshold value. The circuit also includes a short circuit protection circuit that decreases gate voltage imposed to the gate terminal earlier than a fall of the main current produced by the over current protection circuit when the main current becomes larger than the over current in a period shorter than the certain period, and a threshold value change circuit that decreases a threshold value when the short circuit protection circuit decreases the main current.

Provided is an ambient temperature estimating device, ambient temperature estimating method, program, and system that are able to realize both high robustness and high ambient temperature estimation accuracy. An ambient temperature estimating device includes a neural network, a temperature acquisition unit configured to acquire one or more temperature values inside the ambient temperature estimating device, and a neural network calculator configured to estimate an ambient temperature around the ambient temperature estimating device using the neural network. Input values inputted to the neural network by the neural network calculator include the temperature values acquired by the temperature acquisition unit and a heat source control value for controlling a heat source inside the ambient temperature estimating device.

A motor causes a shaft of an actuator to be displaced in an axis direction thereof, at least part of a circuit for driving the motor being mounted on a circuit board. A notch is formed in an end edge of the circuit board. A protrusion is formed inside a case. The protrusion is fitted into the notch, whereby the circuit board is independently supported inside the case.

The apparatus includes a receiver unit which receives data; and a guard interval combining unit which combines the whole of the guard interval of the data, which is received by the receiver unit, with the valid symbol. This arrangement makes it possible to efficiently improve reception characteristic by effectively using the guard interval, while suppressing the apparatus size and the cost.

A bead core coating method for coating an annular bead core with a belt-shaped rubber sheet including the steps of: winding the rubber sheet extruded on an outer circumferential surface of a rotary drum; sticking a part of the rubber sheet to an outer surface of the bead core which is in rotation; and winding a remaining part of the rubber sheet stuck on the outer surface of the bead core while sequentially sticking the remaining part along the outer surface of the bead core, wherein air is blown to a sheet portion including the end that is not stuck to the outer surface of the bead core in the currently-winding rubber sheet in a first direction toward the end along a sheet surface or a second direction inclined toward an outer surface side of the bead core as compared with the first direction.

Provided are a method for producing nickel seed crystals that maintains and improves the quality of nickel powder at a low cost while suppressing production cost and environmental load in the production of nickel powder, by optimizing the amount of hydrazine added when producing fine nickel powder as seed crystals using hydrazine; and a method for producing nickel powder using the nickel seed crystals. The method for producing seed crystals used for producing hydrogen-reduced nickel powder, including adding, to an acid solution containing nickel ions that is maintained at a temperature of 50 to 60° C., hydrazine of 1 to 1.25 mol per 1 mol of a nickel component contained in the acid solution to produce the seed crystals.

Provided are a method for producing nickel seed crystals that maintains and improves the quality of nickel powder at a low cost while suppressing production cost and environmental load in the production of nickel powder, by optimizing the amount of hydrazine added when producing fine nickel powder as seed crystals using hydrazine; and a method for producing nickel powder using the nickel seed crystals. The method for producing seed crystals used for producing hydrogen-reduced nickel powder, including adding, to an acid solution containing nickel ions that is maintained at a temperature of 50 to 60° C., hydrazine of 1 to 1.25 mol per 1 mol of a nickel component contained in the acid solution to produce the seed crystals.

A bead core coating method for coating an annular bead core with a belt-shaped rubber sheet including the steps of: winding the rubber sheet extruded on an outer circumferential surface of a rotary drum; sticking a part of the rubber sheet to an outer surface of the bead core which is in rotation; and winding a remaining part of the rubber sheet stuck on the outer surface of the bead core while sequentially sticking the remaining part along the outer surface of the bead core, wherein air is blown to a sheet portion including the end that is not stuck to the outer surface of the bead core in the currently-winding rubber sheet in a first direction toward the end along a sheet surface or a second direction inclined toward an outer surface side of the bead core as compared with the first direction.

In providing an aircraft lavatory unit capable of suppressing cost and time for installation in a case where a lavatory unit and an ascending / descending unit are to be installed on the aircraft, the present invention provides an aircraft lavatory unit in which a lavatory area and an ascending / descending area are integrally formed, wherein an ascending / descending mechanism which connects to an upper floor or a ceiling space of the aircraft lavatory unit inside the ascending / descending area is provided on a wall surface dividing the lavatory area and the ascending / descending area.

In providing an aircraft lavatory unit capable of suppressing cost and time for installation in a case where a lavatory unit and an ascending / descending unit are to be installed on the aircraft, the present invention provides an aircraft lavatory unit in which a lavatory area and an ascending / descending area are integrally formed, wherein an ascending / descending mechanism which connects to an upper floor or a ceiling space of the aircraft lavatory unit inside the ascending / descending area is provided on a wall surface dividing the lavatory area and the ascending / descending area.

A refrigerant heating performance is increased while suppressing an increase in weight or cost. A vehicle air-conditioning device (10) is provided with a heat pump cycle (16) for heating operation in which an electric compressor (50) for compressing refrigerant, a vehicle-cabin-interior condenser (26), a throttle (52), and a vehicle-cabin-exterior heat exchanger (54) are connected in that order via refrigerant piping. An inverter for the electric compressor (50) in which a power element comprising a highly heat-resistant semiconductor device is used is disposed on the electric compressor (50) so that the refrigerant compressed by the electric compressor (50) can be heated by the power element. During heating operation of the heat pump cycle (16), the refrigerant is heated by the power element.