摘要:
A digital signal reproducing apparatus has the clock signal generating device 24 having: a frequency setting device 12 for setting a desired frequency on the basis of the predetermined linear velocity and a radius position of a pickup 1; a first frequency difference signal generating device 242 for generating a binary signal E corresponding to a difference between the desired frequency fsd and the frequency fs of the sample clock signal A to be used for reproducing a reproduction digital signal; a second frequency difference signal generating device 243 for generating a pulse signal L corresponding to a difference between the frequency based on the reproduction digital signal and the frequency fs of the sample clock signal A; a phase difference signal generating device 244 for generating a pulse signal Y corresponding to a difference between the phase based on the reading signal read from the disc and the phase of the sample clock signal A; and a synchronizing device 24 for synchronizing the frequency fs and phase of the sample clock signal A with the frequency of the reading signal on the basis of the binary signal E, the pulse signal L and the pulse signal Y.
摘要:
An apparatus for reproducing a digital signal which converts a signal read from a recording medium on which a digital signal is recorded into a series of sample values with an A/D converter, detects a phase error from the series of sample values, generates a gain phase error signal by providing the phase error with a predetermined gain, corrects the phase of a clock signal based on the gain phase error signal, and uses the clock signal with the phase thereof corrected as a sampling clock.
摘要:
An electrophotographic photosensitive member has a photosensitive layer formed on a support. A surface layer (or the outermost layer) of the photosensitive layer contains a fluorine-modified organic silicone resin represented by the following average unit formula:{F(CF.sub.2).sub.a1 -Q.sub.1 -R.sub.1.m1 SiO.sub.(3-m1)/2 }.sub.X1 {F(CF.sub.2).sub.a2 -Q.sub.2 -R.sub.2.m2 SiO.sub.(3-m2)/2 }.sub.X2 . . . {F(CF.sub.2).sub.ap -Q.sub.p -R.sub.p.mp SiO.sub.(3-mp)/2 }.sub.Xp {R.sub.1 '.sub.n1 SiO.sub.(4-n1)/2)}.sub.y1 {R.sub.2 '.sub.n2 SiO.sub.4-n2)/2 }.sub.y2 . . . {R.sub.q '.sub.nq SiO.sub.(4-nq)/2 }.sub.yqwhere R.sub.1 -R.sub.p and R.sub.1 '-R.sub.q ' are each an alkyl or aryl group; Q.sub.1 -Q.sub.p are each an alkylene group; m1-mp are each an integer of 0 to 2; n1-nq are each an integer of 0 to 3; a1-aq are each an integer; x1-y1 are each a number larger than 0; and X2-Xp and Y2 are each respectively a number of 0 or more.
摘要:
A recorded information reproducing apparatus is capable of highly reliably reproducing information even from a recording medium on which recorded information including recorded signals in a low frequency band are recorded at a high density. An error voltage is subtracted from an analog read signal read from a recording medium to generate a corrected read signal. The corrected read signal is sampled to be converted into a digital corrected read sample sequence from which recorded information is decoded. Here, the sample existing at a position nearest to each zero-cross point in the corrected read sample sequence is extracted from the corrected read sample sequence to generate an extracted sample sequence. Each sample in the extracted sample sequence is converted into an analog signal having a level corresponding to the associated sample value. This analog signal is used as the above error voltage.
摘要:
The present invention relates to cyclic organosilicon compounds which are viscous liquids at room temperature and have a high surface tension. The present invention also relates to methods of making the cyclic organosilicon compounds which easily produce these compounds in good yields.
摘要:
The introduction of release coating-forming silicone compositions that yield cured release coatings that exhibit excellent release properties against tacky substances and do not impair the residual adhesion of tacky substances.Silicone composition for the formation of cured release coatings, that characteristically comprises(A) 100 weight parts of a cured coating-forming silicone composition into which there is admixed(B) 0.5 to 500 weight parts organosilicon polymer with the following average unit formula ##STR1## wherein R represents C.sub.1 to C.sub.10 monovalent hydrocarbon groups that are free of aliphatic unsaturation; R.sup.1 represents organic groups selected from the group consisting essentially of C.sub.2 to C.sub.20 alkylene groups and organic groups with the formulas --R.sup.3 (OR.sup.3).sub.y -- and --R.sup.3 --(R.sub.2 SiO).sub.z R.sub.2 Si--R.sup.3 -- (R is defined as above, R.sup.3 denotes C.sub.2 to C.sub.20 alkylene groups, which may be the same or different, y is an integer with a value of 1 or more, and z is zero or an integer with a value of 1 or more); R.sup.2 represents groups selected from the group consisting essentially of C.sub.1 to C.sub.10 monovalent hydrocarbon groups, the hydrogen atom, C.sub.1 to C.sub.10 alkoxy groups, and the hydroxyl group; n=3 to 20; x=1 to 13; and n.gtoreq.x.
摘要翻译:引入形成脱胶涂层的脱模涂层硅氧烷组合物,其产生对粘性物质具有优异的剥离性能并且不损害粘性物质的残留粘附性的固化脱模涂层。 用于形成固化剥离涂层的硅氧烷组合物,其特征在于包含(A)100重量份固化的涂覆形成硅氧烷组合物,其中混合(B)0.5至500重量份的具有以下平均单元式的有机硅聚合物其中R表示不含脂族不饱和度的C1至C10单价烃基; R1表示选自基本上由C2〜C20亚烷基组成的组的有机基团和具有式-R3(OR3)y-和-R3-(R2SiO)zR2Si-R3-的有机基团(R定义如上,R3表示C2 至20个亚烷基,其可以相同或不同,y为1以上的整数,z为0或为1以上的整数)。 R2表示选自基本上由C1至C10单价烃基,氢原子,C1至C10烷氧基和羟基组成的组的基团; n = 3〜20; x = 1〜13; 和n> / = x。
摘要:
A method for manufacturing, with high yield and without accompanying depolymerization, an organosilicon polymer with double-ended functionality which contains a bond between a silicon atom and a hydrogen atom or an alkenyl group at both ends of the molecular chain. The organosilicon polymer with double-ended functionality is expressed by the general formula:R.sup.3 R.sup.1.sub.2 SiO(R.sup.1.sub.2 SiO).sub.p R.sup.1.sub.2 Si {R.sup.4 R.sup.1.sub.2 SiO(R.sup.1.sub.2 SiO).sub.m SiR.sup.1 .sub.2 }.sub.n R.sup.3.wherein R.sup.1 is a C.sub.1-10 monovalent hydrocarbon group that does not contain an aliphatic unsaturated bond, R.sup.2 is a C.sub.2-10 alkenyl group, R.sup.3 in the same molecule is either only a hydrogen atom or only a C.sub.2-10 alkenyl group, R.sup.4 is a C.sub.2-10 alkylene group, m is an integer equal to or greater than 0, n is a positive integer and p is an integer equal to or greater than 0. This method is an addition polymerization of a diorganosiloxane expressed by the general formulaR.sup.3 R.sup.1.sub.2 SiO(R.sup.1.sub.2 SiO).sub.m SiR.sup.1.sub.2 Hand a diorganosiloxane expressed by the general formula:R.sup.3 R.sup.1.sub.2 SiO(R.sup.1.sub.2 SiO).sub.p SiR.sup.1.sub.2 R.sup.3in the presence of a catalyst for producing a hydrosilylation.
摘要:
A curable composition suitable for treating substrates in order to render them oil repellent, water repellent and stain resistant, said composition comprising:(A) a fluorine-containing organosilicon compound having the general formula ##STR1## wherein R.sup.1 denotes a monovalent hydrocarbon group, excluding alkenyl groups, R.sup.2 denotes a divalent organic group, a is 2 or 3, and m is an integer having a value of 4 to 12, or a partial hydrolysis and condensation product thereof, and(B) a catalytic quantity of a condensation-reaction catalyst.
摘要:
A fuel control system causes a fuel injector to interrupt fuel injection during a continuous decrease in engine speed to a lower limit of a hysteresis range for fuel supply/fuel interruption and to resume the interruption of fuel supply after a continuous increase in engine speed beyond an upper limit of the hysteresis range and further causes a compulsory interruption of fuel supply when a transition of the engine from non-deceleration to deceleration while the engine operates at speeds between the lower and upper limits of the hysteresis range.
摘要:
There is disclosed a method for the preparation of an organosilicon polymer having the structure ##STR1## wherein each R.sup.1 is a monovalent hydrocarbon group, R.sup.2 is an alkylene group, R.sup.3 is selected from hydrogen, an alkenyl group or a hydroxyl group, m is zero or greater and n is 1 or more, said method comprising:reacting(A) diorganosiloxane having the general formula ##STR2## (B) an unsaturated aliphatic hydrocarbon having 3 to 10 carbon atoms that contains 2 carbon-carbon double bonds and an unsaturated aliphatic hydrocarbon having 2 to 10 carbon atoms that contains 1 carbon-carbon triple bond, said reaction taking place in the presence of(C) a hydrosilylation-reaction catalyst.