摘要:
A cascade-type variable-order delta-sigma modulator with low power consumption that can change the number of stages of the quantization loops, which are connected in a cascade configuration, to an optimum number depending on peripheral circuitries in a configuration as simple as possible. The present invention includes first to nth stages of delta-sigma modulating type quantization loops (n is an integer equal to or more than 2) connected in a cascade configuration, and a noise rejecting circuit. Each quantization loop quantizes an input signal, outputs the quantization result, and feeds back the quantization result to itself. The noise rejecting circuit rejects a quantization noise of the first stage of quantization loop, and comprises (n−1) selectors for activating and de-activating the respective output signals of the second and succeeding stages of the quantization loops in compliance with the control signal.
摘要:
It is aimed at providing a vaporization apparatus and a vaporization method capable of keeping track of a progressive condition of clogging of the apparatus. It is also aimed at providing a vaporization apparatus and a vaporization method capable of eliminating clogging prior to occurrence of complete clogging, without disassembling the apparatus. It provides a vaporization apparatus for introducing a carrier gas from one end of a gas passage and for feeding, the carrier gas including a material solution, from the other end of the gas passage to a vaporization part to thereby vaporize the material solution, characterized in that a mass flow controller (MFC) is provided at the one end of the gas passage, and means for detecting a pressure within the gas passage is provided. The vaporization apparatus is characterized in that the same is provided with means for introducing a chemical solution capable of dissolving therein matters deposited or sticked to the inside of the gas passage, into the gas passage.
摘要:
The present application provides a semiconductor device including a first-conductivity type semiconductor substrate, a pillar structure portion formed on the first-conductivity type semiconductor substrate and formed of five semiconductor pillar layers arranged in one direction parallel to a main surface of the first-conductivity type semiconductor substrate, and isolation insulating portions formed on the first-conductivity type semiconductor substrate and sandwiching the pillar structure portion between the isolation insulating portions, wherein the pillar structure portion is formed of a first first-conductivity type pillar layer, a second first-conductivity type pillar layer and a third first-conductivity type pillar layer which sandwich the first first-conductivity type pillar layer, a first second-conductivity type pillar layer provided between the first first-conductivity type pillar layer and the second first-conductivity type pillar layer, and a second second-conductivity type pillar layer provided between the first first-conductivity type pillar layer and the third first-conductivity type pillar layer.
摘要:
A liquid crystal display apparatus comprising a display panel having a plurality of pixels arranged in a matrix, signals lines for inputting a video signal to the plurality of pixels, and switching elements for selecting the pixels individually, a video decoder which decodes input compressed video data to obtain a reconstructed picture signal for each frame, a change region detector for detecting a change region between a previous frame and a current frame by using the reconstructed picture signal, to obtain address data on the change region, a display signal converter for converting the reconstructed picture signal into a display picture signal, a difference signal detector for detecting a difference signal indicating at least a difference between the previous frame and the current frame, a switch driver for selectively driving the switching elements to select the pixels corresponding to the change region in accordance with the address data, and a signal line driver for adding the difference signal and the display picture signal of the previous frame, and inputting an addition result to the signal lines.
摘要:
The temperature of the specimen holder 6 in the vacuum container 1 is lowered with the thermal control unit 11 to adjust the temperature of the specimen 7 composed of a silicon substrate to a low temperature of 0° C. or lower. Then, trenches are formed in the specimen 7 by plasma etching using an etching gas comprising SF6 as the main constituent and optionally O2 as an additive. Thus, the etching rate and the yield can be increased in the trench formation in the silicon semiconductor substrate.
摘要:
There is provided a field emission type display which is capable of suppressing deterioration of image quality which otherwise occurs due to stepwise cuts and to the increase of wiring resistance caused by a thin width of a cathode line and which causes less failures. The display includes a plurality of cathode lines having an equal line width within the pixel and is structurally based on a multiple gradation representing a scheme of controlling spatial gradation display by changing the number of field emission type emitters to be driven by changing the number of cathode lines to be selected.
摘要:
A nonwoven fabric prepared from fibers which are not substantially fibrillated and have a diameter of less than 20 &mgr;m, by fusing a fiber web comprising fine fibers having a diameter of 4 &mgr;m or less, and adhesive fibers having a diameter ranging from 8 &mgr;m to less than 20 &mgr;m, wherein a maximum pore size in the nonwoven fabric is not more than twice a mean flow pore size of the nonwoven fabric is disclosed.
摘要:
A field emission display and display driving method, wherein the display includes a plurality of cathode lines arranged in a first direction in parallel; a plurality of gate lines arranged in a second direction in parallel, perpendicular to the first direction and isolated from the cathode lines; a field emission device at a cross point of one of the cathode lines and one of the gate lines, including an anode, an emitter connected to the one of the cathode lines, and a gate connected to the one of the gate lines; a scanning circuit configured to apply a scanning signal to one of the gate lines; and a modulating circuit configured to form a modulated signal synchronized with the scanning signal from an image signal having intensity information. The modulated signal has a plurality of pulse width modulated waveforms, each having a duty cycle indicative of the brightness of a corresponding picture element of the image signal, wherein successive waveforms have a level transition (high to low or low to high) that is inverted from the level transition of the immediately prior waveform, each of the waveforms beginning a period at one of two signal levels (high or low) and ending the period at the other (low or high) of the two signal levels. In one embodiment, a first cathode line has applied thereto a first pulse width modulated signal which begins the period at one of the two signal levels, and simultaneously a second cathode line has applied thereto a second pulse width modulated signal which begins the period with the other of the two signal levels.
摘要:
A work flow system is disclosed which, when a work effort is divided into multiple work points for execution in each of domains (sections or departments in enterprises, government offices, or the like), permits easy work allocation to work points in another domain. Each domain has a public flow management section for storing a public flow which consists of its own work points which is made open to another domain and, when detecting a public flow consisting of work points that belong to another domain in a flow indicating work originating in it, sends identification information for that public flow to that domain. Upon receipt of identification information for a public flow consisting of work points that belong to it from another domain, each domain carries out the public flow.
摘要:
An apparatus for recovering fresh water or for concentrating a liquid has a structure formed of a roof member 10 having a gradient and a base member 14 provided with a liquid reservoir member 18. A cellulose-based film 20 has one surface saponified 2 to 50 .mu.m deep and the other surface is attached to the inner surface of the roof member. A liquid recovery member 16 is provided in the roof member or the base member, the liquid recovery member being for recovering water which is condensed on the saponified surface of the cellulose-based film and that flows downward.