摘要:
Herein disclosed is a semiconductor memory device, in which peripheral circuits are arranged in a cross area of a semiconductor chip composed of the longitudinal center portions and the transverse center portions, and in which memory arrays are arranged in the four regions which are divided by the cross area. Thanks to this structure in which the peripheral circuits are arranged at the center portion of the chip, the longest signal transmission paths can be shortened to about one half of the chip size to speed up the DRAM which is intended to have a large storage capacity.
摘要:
A semiconductor integrated circuit includes a switch unit for controlling the supply of a power source voltage to a signal amplification circuit for receiving an input signal, and a control unit for selectively turning ON and OFF the switch unit in accordance with the amplitude or frequency of the input signal. By the constitution, it is possible to provide an input circuit or an output circuit capable of being applied to an input/output interface adapted for a small amplitude operation.
摘要:
A color cathode ray tube includes a front panel having a phosphor screen deposited on its interior surface. A contour of the interior surface is configured such that a radius Rx of a surface curvature of sections parallel to a horizontal axis and a radius Ry of a surface curvature of sections parallel to a vertical axis of the front panel are substantially constant, respectively, within a screen area of the phosphor screen.
摘要:
Herein disclosed is a semiconductor memory device, in which peripheral circuits are arranged in a cross area of a semiconductor chip composed of the longitudinal center portions and the transverse center portions, and in which memory arrays are arranged in the four regions which are divided by the cross area. Thanks to this structure in which the peripheral circuits are arranged at the center portion of the chip, the longest signal transmission paths can be shortened to about one half of the chip size to speed up the DRAM which is intended to have a large storage capacity.
摘要:
A deflection yoke device comprises a convergence correction circuit connected between a vertical deflection coil and correction coils. The convergence correction circuit includes a first, second and third impedance elements connected in parallel and at least two diodes. The diodes are connected in series in the same direction and respond to a vertical deflection current of the vertical deflection coil to regulate a current flowing through the correction coils to thereby correct the YH mis-convergence.
摘要:
Liquid crystalline organopolysiloxane is provided having the general formula:R.sub.a (A).sub.b (B).sub.c SiO.sub.(4-a-b-c)/2wherein R is independently selected from the group consisting of a hydrogen atom, hydrocarbon group having i to 4 carbon atoms, and phenyl group, A is a group of the formula: ##STR1## wherein m, n, and x are integers in the range: m.gtoreq.3, n.gtoreq.2, 5.ltoreq.m+nx.ltoreq.15, x=1 or 2, B is an organic chromophore group having an absorption peak in the visible spectrum, a, b, and c are numbers in the range: 1.ltoreq.a
摘要:
Graft copolymers containing a vinyl polymer as a trunk polymer component, and both organopolysiloxane and polylactone as a branch polymer component, and methods of producing them. Covering compositions containing said graft copolymers as a major component can form coats excellent in not only heat resistance and hardness, but also flexibility, weather resistance, water repellability, stain resistance, mold releasability, lubricity and so on.
摘要:
An ocular lens material comprising a copolymer prepared by polymerizing a monomer mixture comprising, as main components, (A) 15 to 40% by mole of a fluoroalkyl (silicon-containing alkyl) fumarate, (B) 35 to 55% by mole of an N-vinyl lactam, (C) 3 to 30% by mole of at least one of acrylic acid and methacrylic acid, and (D) 0.1 to 20% by mole of a crosslinkable monomer. The ocular lens material is excellent in all of transparency, oxygen permeability, mechanical strength and hardness. Further, the material is excellent in hydrophilic property in spite of its low water absorption.
摘要:
An electrophotographic photoreceptor is disclosed. The photoreceptor contains in a light sensitive layer thereof a titanylphthalocyanine having specific crystalline characteristics as defined in the specification and a polycyclic quinone pigment or a bisazo pigment as defined in the specification. The photoreceptor has a high sensitivity over a broad wavelength region, especially near-infrared range. It is suitably used for a laser printer.
摘要:
A ring magnetic sub-core having a plurality of protrusions inside is disposed adjacent to an electron gun side of a main magnetic core on which a horizontal deflection coil and a vertical deflection coil are wound, and an auxiliary vertical deflection coil connected with said vertical deflection coil is wound around said magnetic sub-core, thereby making it possible to have both improvement of convergence performance and reduction of barrel distortion be consistent with each other. Further, a convergence coil is wound around said magnetic sub-core so as to correct a transverse raster or a longitudinal raster.