摘要:
A system and method of controlling an internal combustion engine are provided. The method may include closing said intake valve at a timing in a first range, which is before a maximum charge closing timing with which an amount of air inducted into said cylinder from said air intake passage would be maximized at a given engine speed, during a cylinder cycle when a desired amount of air to be inducted into said cylinder is less than or equal to a predetermined air amount at the given engine speed. The method may further include closing said intake valve at a timing in a second range, which is after said maximum charge closing timing and separated from said first range during a cylinder cycle, when a desired amount of air to be inducted into said cylinder is greater than said predetermined air amount at the given engine speed.
摘要:
A method for manufacturing a semiconductor resistor includes forming a well region in a semiconductor substrate, with the well region serving as a resistive region, forming a pair of contact regions spaced apart from each other in the well region, and forming a diffusion region in an intermediate portion between the pair of contact regions on a surface of the well region. The diffusion region is configured to adjust resistance and temperature dependence of the semiconductor resistor.
摘要:
To provide a multivendor-compatible printed board. On one face of an IVH (Interstitial Via Hole) board, wiring is provided for mounting a first semiconductor device, and on the other face, wiring is provided for mounting a second semiconductor device having pin positions and pin counts different from the first semiconductor. By the IVH board according to the present invention, one face can be used for mounting the first semiconductor device, and the other face can be used for mounting the second semiconductor device. Thus, even when the semiconductor device mounted on the IVH board of the present invention is changed, it becomes possible to use the identical board.
摘要:
AlGaInP system laser device (24) and AlGaAs system laser device (26) are arranged so that respective stripes (28, 30) are parallel to each other. The AlGaInP system laser device (24) is placed to (011) plane (22b) side from the centerline of the substrate and the AlGaAs system laser device (26) is placed to the (0{overscore (1)}{overscore (1)}) plane (22a) side from the centerline of the substrate when viewed from the main emitting plane (01{overscore (1)}) (22c) side of laser light. Substrate (22) is an off substrate and inclines from the (0{overscore (1)}{overscore (1)}) plane (22a) toward the (011) plane (22b) with respect to the (100) plane at a certain angle (θ off) within the range of 2 degrees and 15 degrees. Optical axis L1 of the AlGaInP system laser device (24) is parallel to optical axis L2 of the AlGaAs system laser device (26) and approaches at an angle of about 0.5 degrees.
摘要:
A work inspection system 2 includes: a conveyor table 7 vertically positioned, and conveying works W stored in work-storing pockets 9; a work inspection apparatus for inspecting the works stored in the work-storing pockets 9 of the conveyor table 7; and a sorting and ejecting apparatus 12 for sorting the inspected works stored in the work-storing pockets of the conveyor table in accordance with a property of the works and ejecting the same. The work-storing pockets 9 of the conveyor table 7 are positioned inside the periphery 7a of the conveyor table 7 to surround the works W. The work-storing pockets 9 are disposed along two concentric circles on the conveyor table 7.
摘要:
A power correction value generating unit determines a power correction value for minimizing an error, from a reference output power value of a carrier multiplexed signal, generating due to peak power suppression under a carrier setting based on the carrier setting relating to either one or both of the number of carrier signals and frequency arrangement, and peak suppression setting. An output power error correcting unit corrects a signal gain before or after the carrier signals are multiplexed, using the power correction value obtained by the power correction value generating unit. In an apparatus performing peak suppression according to an input limitation power of the power amplifier, it is possible to always obtain a desirable transmission (output) power even when the number of carriers or carrier frequency arrangement varies.
摘要:
A liquid crystal driving signal generating apparatus comprises a PWM signal generator, a low pass filter for limiting a frequency band of a PWM signal outputted from the PWM signal generator, a liquid crystal panel connected to an output of the low pass filter, and a control means for controlling the PWM signal generator. The control means controls the PWM signal generator such that the PWM signal generator generates a PWM signal with a duty ratio corresponding to a refractive index to be set in the liquid crystal panel.
摘要:
A microwave heating oven has a seal located in the path formed by a gap between the oven body and the oven door for preventing microwave leakage. The seal may comprise several seals, and includes a microwave absorber as one of the seals. The microwave absorber consists of a mixture of a powder of magnetic material and an organic high molecular weight compound. The length of the microwave absorber in the direction of propagation of microwave in the path of microwave leakage is an integral multiple of about 1/2.lambda., wherein .lambda. is a wavelength of the microwave in the microwave absorber. Absorption is improved by setting the absorber in a recess in the wall or door of the oven, or by surrounding the absorber by a metal layer except on the surface thereof parallel to the direction of propagation and facing the gap.
摘要:
There is provided a spark ignited internal combustion engine having a geometric compression ratio of 13.0 or greater. The engine comprises combustion chambers having a cylinder stroke volume of 0.3 liter or greater, with the spark plug in the chamber ceiling having its spark point in the combustion chamber, and a cavity being formed on the top surface of the piston. At least part of the cavity defines a spherical surface that a hypothetical sphere having its center at the spark point contacts when the piston is at top dead center. The cavity is formed so that V2/V1≧0.31, where V1 is top-dead-center combustion chamber volume, and V2 is the volume of the part of the hypothetical sphere not interfering with the combustion chamber floor or ceiling at top dead center. The flame thus spreads with less interference, shortening combustion duration and reducing fuel consumption.
摘要:
In a network employing code division multiplex access, a distortion compensation amplifying apparatus is provided which is capable of making quick response to carry out the distortion compensation with high accuracy even if the signal power to be inputted thereto varies rapidly. In this distortion compensation amplifying apparatus, the renewal of a distortion compensation coefficient in a renewing unit is complemented on the basis of a result of amplification in an amplifier with respect to a signal code-division-multiplexed in a pseudo-signal multiplexing unit.