摘要:
A clock recovery circuit includes an A/D converter and samples sampled signals from a received signal of a modulation rate depending on a sampling clock signal with a frequency twice the predetermined modulation rate. An amplitude detector detects an amplitude of a first sampled signal and an amplitude of a second sampled signal following the first samples signal. By comparing the amplitudes of the first and second sampled signals, a smaller one of the first and second sampled signals is selected. A phase of the sampling clock signal is controlled so that the amplitude of the smaller signal is minimized.
摘要:
An (E)-(R)-2-alkyl-4-(2,2,3-trimethylcyclopent-3-en-1-yl)-2-buten-1-ol represented by formula (I): wherein R represents an alkyl group having 1 to 3 carbon atoms,and a process for preparing the same comprising hydrogenating a corresponding (E)-(R)-2-alkyl-4-(2,2,3-trimethylcyclopent-3-en-1-yl)-2-buten-1-al in the presence of a ruthenium-phosphine complex as a catalyst, a base comprising an alkali metal or an alkaline earth metal, and an amine. The compound (I) has an excellent sandalwood oil odor.
摘要:
A color filter substrate has a substrate structure, spacers which include a first spacer layer and a plurality of second spacer layers. Each of the second spacer layers has a sectional plane which is substantially parallel to the substrate structure. And the sectional plane has a entire projective area of the first spacer layer therein and an elongated portion from the projective area, so that an area of effective thickness of the spacer to maintain the gap between two substrates depends on an area of a smaller of the first and second surfaces of the first spacer layer. In other words, the outline of the first spacer layer is located so as to be entirely included within the outline of these second spacer layers. If the central axis of the first spacer layer is shifted from that of the second spacer layers in the manufacturing process of the liquid crystal display apparatus, misalignment between first and second spacer layers occurs. The degree of the misalignment depends on the accuracy of the photo-etching technique. On account of the portion, above misalignment is absorbed and the first spacer layer is entirely located on the second spacer layers. In this occasion, the effective thickness of the spacer is established over the whole projective area of the first spacer layer on the substrate, Therefore, regardless of the position within the liquid crystal display apparatus panel or the production lot, the gap uniformity between two substrates is gained. An island shape spacer is positioned at the liquid crystal injection area, so that the gap between the two substrates at the liquid crystal injection area is uniform.
摘要:
A power input flange is fixed to the tip of a power input shaft whose diameter increases in steps from a tip thereof along a main body thereof and which is supported within a casing, and a power output disk is supported upon the outer peripheral surface of the power input shaft. A power input disk is supported upon the outer peripheral surface of the power input shaft between the power input flange and the power output disk, and a power roller is provided which is contacted at a variable inclination with both the power input disk and the power output disk. A member which biases the power input disk in the direction of the power output disk is supported upon the power input flange. And the power input flange is supported via a radial bearing upon the outer peripheral surface of a tubular shaped support portion which projects inwards from the casing. By this, the diameter of the support portion is increased as compared with the case in which the power input shaft is directly supported by the casing. By this structure it is possible to increase the strength of the support portion and make the casing more compact, and also the supply of lubricating oil to the biasing member is facilitated.
摘要:
A tracking control system for use in a digital video disc (DVD) system requires generation of a precise error tracking signal. A tracking control system has an optical detector for reading a light beam reflected from a light beam spot radiated on a recording medium. Errors in tracking are detected and controlled by a tracking error signal generated in part through pulse shaping circuits controlled by a differential amplifier. Phase difference pulses generated by the pulse shaping circuits are free from noise impulses and other anomalies which could affect accurate tracking. The differential amplifier enables regulation of a phase difference offset and eliminate noise impulses while still maintaining the frequency characteristics necessary for high density recording mediums.
摘要:
A perfume composition which contains a (4R)-cis-4-methyl-2-substituted-tetrahydro-2H-pyran derivative represented by formula (I): ##STR1## wherein ---- represents a single or double bond, and a method for improving fragrance by using this perfume composition.
摘要:
An image forming method having the steps of charging a photosensitive member, forming an electrostatic latent image on the charged photosensitive member by image exposure, providing a nonexposure area in an image border portion when images having different contrast are formed adjacent to each other, and developing the electrostatic latent image on the photosensitive member.
摘要:
A liquid l-n-menthol composition containing 30 to 80% by weight of (-)-n-isopulegol and a process for preparing a liquid l-n-menthol composition comprising mixing 20 to 70 parts by weight of liquid menthol at a temperature of not lower than 42.degree. C. as obtained in the production of l-n-menthol with 30 to 80 parts by weight of (-)-n-isopulegol are disclosed. Further, the liquid l-n-menthol composition in which part of the (-)-n-isopulegol is replaced with 3-l-n-menthoxypropane-1,2-diol and the process for preparing the same are also disclosed. The liquid l-n-menthol composition of the present invention is less expensive than conventionally available menthol and yet has an improved feeling of coolness (particularly, the bitterness is reduced) and can be used in place of conventional menthol. Besides, the liquid menthol composition of the present invention is excellent in workability and hygiene on use. Further, by replacing part of the (-)-n-isopulegol component with 3-l-n-menthoxypropane-1,2-diol, both the odor of menthol and the irritation on the skin by menthol can be softened, and the feeling of mildness can be more increased.
摘要:
A pier unit includes a float having substantially a box shape with an opening at the top and including a flange extending outward along a top peripheral edge thereof; a rectangular frame attached to the float; a deck provided on the frame; and a connecting member secured to at least one of four corners of the frame for connecting the pier unit to another pier unit.
摘要:
A negative-feedback amplifier prevents deterioration of the open-loop gain and the distortion improvement effect despite changes in a sending frequency by demodulating a baseband signal from a carrier and an output signal of an amplifier and a demodulated baseband signal. The negative-feedback amplifier includes a correcting member for correcting a phase error of the demodulated baseband signal caused by a delay in the amplifier for each change of a sending frequency of the carrier.