摘要:
There is disclosed an audio coding apparatus which has a wideband encoder and noise canceller. The encoder includes a high-frequency audio coder and low-frequency audio coder. The low-frequency audio coder includes a low-frequency noise canceller. When the high-frequency audio coder is disabled, the noise canceller is disabled, and allows a digital audio signal to pass through it and outputs that signal to the encoder. When the high-frequency audio coder is enabled, the low-frequency noise canceller is disabled, and allows a digital audio signal to pass through it.
摘要:
A photo mask formed with patterns to be transferred to a substrate using an exposure apparatus, the photo mask comprising a pattern row having three or more hole patterns surrounded by a shielding portion or a semitransparent film and arranged along one direction, and an assist pattern surrounded by the shielding portion or semitransparent film and having a longitudinal direction and a latitudinal direction, the assist pattern being located at a specified distance from the pattern row in a direction orthogonal to the one direction, the longitudinal direction of the assist pattern being substantially parallel with the one direction, the longitudinal length of the assist pattern being equivalent to or larger than the longitudinal length of the pattern row, the assist pattern being not transferred to the substrate.
摘要:
An exposure apparatus for an optical disc used for eliminating the vibrations in the propagating direction when a rotation mechanism rotates. The slider controller 40 and the spindle controller 41 of the exposure apparatus 1 are activated, and the then the optical disc begins to be rotated by an AC synchronized motor. Through a condensing device 9, laser beams emitted form the laser source 6 are irradiated on the optical disc for exposure. At this time, the optical disc is eccentrically chucked on the rotation mechanism, resulting a rotational vibration of the whole rotation mechanism. A measurer 17 is used for detecting a propagating component of the rotational vibration, and a vibrator controller 42 controls the vibrator 20 as the output of the measurer 17 approaches zero. Therefore, the vibration in the propagating direction of the base 2 is cancelled, and the propagation accuracy is increased and the exposure quality is enhanced.
摘要:
There is disclosed an audio coding apparatus which has a wideband encoder and noise canceller. The encoder includes a high-frequency audio coder and low-frequency audio coder. The low-frequency audio coder includes a low-frequency noise canceller. When the high-frequency audio coder is disabled, the noise canceller is disabled, and allows a digital audio signal to pass through it and outputs that signal to the encoder. When the high-frequency audio coder is enabled, the low-frequency noise canceller is disabled, and allows a digital audio signal to pass through it.
摘要:
A photo mask formed with patterns to be transferred to a substrate using an exposure apparatus, the photo mask comprising a pattern row having three or more hole patterns surrounded by a shielding portion or a semitransparent film and arranged along one direction, and an assist pattern surrounded by the shielding portion or semitransparent film and having a longitudinal direction and a latitudinal direction, the assist pattern being located at a specified distance from the pattern row in a direction orthogonal to the one direction, the longitudinal direction of the assist pattern being substantially parallel with the one direction, the longitudinal length of the assist pattern being equivalent to or larger than the longitudinal length of the pattern row, the assist pattern being not transferred to the substrate.
摘要:
A cold rolled steel sheet having high strength and high formability and having excellent crushing performance can include 0.05-0.40 mass % of C, 1.0-3.0 mass % of Si, 0.6-3.0 mass % of Mn, 0.02-1.5 mass % of Cr, 0.010-0.20 mass % of P and 0.01-0.3 mass % of Al, with the remainder consisting essentially of Fe. The steel sheet includes a ferrite major phase and a minor phase consisting of martensite, acicular ferrite and retained austenite. The cold rolled steel sheet can be used in automobiles.
摘要:
After a starting material of steel comprising C: 0.001-0.20 wt %, Si: 0.01-0.50 wt %, Mn: 0.05-2.0 wt %, P: not more than 0.05 wt %, S: not more than 0.05 wt %, sol.Al: 0.01-0.10 wt %, N: not more than 0.020 wt % and the balance being Fe and inevitable impurities is heated above AC.sub.3 point, rough rolling is completed within a temperature range of (Ar.sub.3 point+100.degree. C.)-(Ar.sub.3 point+50.degree. C.), and super-high pressure descaling is carried out under conditions satisfying a jetting pressure of not less than 25 kgf/cm.sup.2 and a liquid quantity density of not less than 0.002 liter/cm.sup.2, and subsequently finish rolling at a rolling reduction of not less than 80% above Ar.sub.3 point of a rolling completion temperature is started in 5 seconds and coiling is carried out below 700.degree. C., whereby hot rolled steel sheets having a surface roughness Ra of not more than 0.8 .mu.m and an average scale thickness of not more than 4 .mu.m is produced and the adhesion property in case of subjecting to shaping at a mill scale state and the pickling efficiency in case of applying to pickling are improved.
摘要:
A non-oriented silicon steel sheet having a low core loss contains Si in an amount of about 2.5-5.0 wt % and S restricted to about 0.003 wt % or less and inclusions; the volume ratio of those inclusions having a particle size of about 4 .mu.m or higher to the total volume of inclusions is about 5-60%, and the volume ratio of inclusions having a particle size less than about 1 .mu.m to the total volume of inclusions is about 1-15%; when the sheet contains Mn in an amount of about 0.4-1.5%, and the volume ratio of particles less than 1 .mu.m is about 1-5%, the silicon steel sheet also has a low rotation core loss. The method of manufacturing comprises controlling the change of a cooling speed to about 5.degree. C./s.sup.2 or less in the cooling process of such steel sheet in a finish annealing.
摘要翻译:具有低铁损的无取向硅钢板含有约2.5-5.0重量%的Si和限制在约0.003重量%以下的Si和夹杂物; 具有约4μm或更大的粒径的夹杂物与夹杂物的总体积的体积比约为5-60%,并且具有小于约1μm的粒径的夹杂物的体积比与总体积 的夹杂物约为1-15%; 当片材含有约0.4-1.5%的Mn,小于1μm的颗粒的体积比约为1-5%时,硅钢板也具有低的旋转磁芯损耗。 制造方法包括在最终退火中在这种钢板的冷却过程中控制冷却速度的变化为约5℃/ s 2以下。
摘要:
A synchronous dynamic random access memory device latches external command signals for defining the internal sequence, and an input circuit produces an internal control signal from a system clock signal and a clock enable signal for latching the external command signals, wherein the input circuit maintains the internal control signal in an active level for a predetermined time period regardless of the duty ratio of the external clock signal so that a malfunction hardly takes place.
摘要:
A cold rolled steel sheet or plated steel sheet having an improved press formability as well as excellent phosphatability, resistance to galling and spot weldability is produced by controlling a surface roughness pattern of the steel sheet so as to satisfy a center-line average surface roughness of 0.3-2.0 .mu.m and a regularity parameter in at least one direction of not more than 0.25 defining the regularity of surface roughness.