摘要:
There is disclosed a variable-gain amplifier circuit that operates on a low voltage, exhibits low distortion, provides a wide range of variation, and is suitable for use in a low-power-consumption wireless communication system. The variable-gain amplifier circuit is configured so that a variable-load circuit, which includes three reactance function elements and provides a wide range of impedance variation, is connected to a conductor circuit whose output terminal generates a positive-phase output current proportional to conductance with respect to an input voltage.
摘要:
A projection-type image display device generates projection light by modulating light beams of at least three primary colors in accordance with image information and synthesizing the modulated light beams. The display device includes a light source unit constituted by arranging a plurality of light source elements each having light source arrays being arranged on heat receiving plates respectively so as to conduct the light beams of the colors to irradiation surfaces of a synthesizing prism, a refrigerating unit including at least a refrigerant compressor, a condenser, a pressure reducing unit and a refrigerant pipe constituting an evaporator, and an air cooling device lower in cooling capacity than the refrigerating unit. Of the plural light source arrays, those relatively large in the amount of heat generated are connected to the refrigerating unit, while the others are connected to the air cooling unit.
摘要:
The present invention provides a voltage-controlled oscillator operating from microwave frequencies to millimeter wave frequencies, which is capable of outputting a large power with an output impedance thereof being set up to a predetermined level at low power consumption, and a communication device using the same. The voltage-controlled oscillator includes: a differential alternating current generator including a resonator capable of varying resonant frequency according to an input control voltage, for generating a pair of differential alternating current each of which having the same frequency with the resonant frequency of the resonator yet being 180 degrees out of phase in mutual; a pair of transformers each of which having a primary inductor and a secondary inductor, for conducting the alternating current to the primary inductor; and an impedance-matching circuit connected to the secondary inductor of the transformers, wherein an output signal is outputted from the secondary inductors of the transformers.
摘要:
A casing of a motor with resolver includes a stator, a motor shaft rotatably supported by a bearing, a motor rotor integrally rotatable with the motor shaft, and a resolver for detecting a rotation angle of the motor rotor. The resolver includes a disc-shaped resolver stator held on the motor casing and having a surface on which a thin-film-shaped coil is formed, and a disc-shaped resolver rotor provided on an end face of the motor rotor and having a surface on which a thin-film-shaped coil is formed. Part of the motor casing holding the outer periphery of the resolver stator is formed as a shield portion cylindrically protruding along the outer periphery of the resolver rotor to the rotor. The motor casing and the shield portion are each made of a non-magnetic conductive material.
摘要:
A power converter apparatus includes a substrate 22 on which switching elements Q, Q1 to Q6 are mounted, positive and negative terminal interconnection members 27, 28 mounted on the substrate, and a capacitor 17 having a positive terminal 17a connected to the main body of the positive terminal interconnection member 27 and a negative terminal 17b connected to the main body of the negative terminal interconnection member 28. The interconnection members each have a plate-like main body 27a, 28a that is located above and parallel to the substrate 22. The main bodies of the interconnection members are stacked to be close to each other while being electrically insulated from each other. Each of the positive terminal interconnection member and the negative terminal interconnection member further includes a plate-like extension 27b, 28b that extends from the corresponding main body toward the substrate, and a terminal portion 27c, 28c that extends from the extension and is joined to the substrate. The extensions extend to positions closest to the substrate, while being parallel to and close to each other.
摘要:
A fingerprint image pickup device includes a light source that emits a light for transmission through a fingertip portion having a fingerprint to be photographed, an image pickup unit that picks up the light from the light source and transmitted through the subject to acquire a fingerprint image in which convex and concave parts of the fingerprint are dark and bright, respectively, and an optical system that images the light transmitted through the fingertip portion on the image pickup unit. The optical system is arranged so that a distal side of the fingertip portion is tilted, at a predetermined angle, farther away from the optical system than an opposite side, with reference to a position at which a ventral side of the fingertip portion contacts a face orthogonal to an optical axis of the optical system.
摘要:
A sheet-shaped composition is provided which has an improved preservability and handling readiness, as well as a high flexibility in use. Amnion with trehalose added thereto is utilized. Addition of trehalose improves the flexibility of the amnion, and prevents basal membrane and stratum compactum from being damaged during lyophilization process.
摘要:
For improving the filling properties between vertical MISFETs constituting a SRAM memory cell, the vertical MISFETs are formed over horizontal drive MISFETs and transfer MISFETs, and they are disposed with a narrow pitch in the Y direction and a wide pitch in the X direction. After a first insulating film (O3-TEOS) having good coverage is disposed over a columnar laminates having a lower semiconductor layer, an intermediate semiconductor layer, an upper semiconductor layer and a silicon nitride film and a gate electrode formed over the side walls of the laminates via a gate insulating film to completely fill a narrow pitch space, a second insulating film (HDP silicon oxide film) is deposited over the first insulating film, resulting in an improvement in the filling properties, even in a narrow pitch portion, between vertical MISFETs having a high aspect ratio.
摘要:
For improving the filling properties between vertical MISFETs constituting a SRAM memory cell, the vertical MISFETs are formed over horizontal drive MISFETs and transfer MISFETs, and they are disposed with a narrow pitch in the Y direction and a wide pitch in the X direction. After a first insulating film (O3-TEOS) having good coverage is disposed over a columnar laminates having a lower semiconductor layer, an intermediate semiconductor layer, an upper semiconductor layer and a silicon nitride film and a gate electrode formed over the side walls of the laminates via a gate insulating film to completely fill a narrow pitch space, a second insulating film (HDP silicon oxide film) is deposited over the first insulating film, resulting in an improvement in the filling properties, even in a narrow pitch portion, between vertical MISFETs having a high aspect ratio.
摘要:
The present invention provides an automotive storage apparatus which can store various types of articles so as to improve the convenience for use. An automotive storage apparatus has a storage apparatus main body in which an opening which opens upward can be covered and uncovered by a slidable lid unit and a box unit which can detachably be installed in the storage apparatus main body and which covers part of the opening when installed, and in such a state that the box unit is installed in the storage apparatus main body, the lid unit is in abutment with the box unit at an end portion thereof, so as to cover the remaining portion of the opening.