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694results about How to "Reduce deviation" patented technology

Differential circuit, amplifier circuit, driver circuit and display device using those circuits

A differential circuit and an amplifier circuit for reducing an amplitude difference deviation, performing a full-range drive, and consuming less power are disclosed. The circuit includes a first pair of p-type transistors and a second pair of n-type transistors. A first current source and a first switch are connected in parallel between the sources of the first pair of transistors, which are tied together, and a power supply VDD. A second current source and a second switch are connected in parallel between the sources of the second pair of transistors, which are tied together, and a power supply VSS. The circuit further includes connection changeover means that performs the changeover of first and second pairs between a differential pair that receives differential input voltages and a current mirror pair that is the load of the differential pair. When one of the two pairs is the differential pair, the other is the current mirror pair. In a differential amplifier circuit, there is provided an added transistor connected in parallel to a transistor, which is one transistor of a differential pair transistors, whose control terminal is a non-inverting input terminal. The added transistor has a control terminal for receiving a control voltage which is set so that, when an input voltage applied to the non-inverting input terminal is in a range in which the transistor whose control terminal is the non-inverting input terminal is turned off, the added transistor is turned on.
Owner:RENESAS ELECTRONICS CORP

Prognostic cell for predicting failure of integrated circuits

A prognostic cell is used to predict impending failure of a useful circuit or circuits in a host IC. Increasing the stress on the prognostic cell relative to the useful circuit shifts the failure distribution of the cell along the time axis. The relative amount of time between the useful circuit failure and prognostic cell trigger point is the “prognostic distance”. The prognostic distance is controlled by designing in the excess stress applied in test device(s), by setting the threshold for triggering in the comparison circuit or by both. Prediction accuracy is enhanced by using multiple test devices to oversample the underlying failure distribution and triggering the failure indicator when a certain fraction fail.
Owner:RIDGETOP GROUP

Imaging device

An imaging device, particularly but not exclusively for use in a targeting sensor for missile seekers. The imaging device including at least one lens; a substantially planar sensor having a plurality of pixels; a light guiding arrangement for directing light received via said lenses toward said sensor; in which said light guiding arrangement includes a plurality of light guides.
Owner:BAE SYSTEMS PLC

Complete roll forming configuring method for wide flat steel hot rolling finish mill set

The invention relates to a complete roll forming configuring method for a wide flat steel hot rolling finish mill set. According to the characteristics that an upstream machine frame controls the convexity and a downstream machine frame controls the flatness in the seven-machine frame and four-roll hot rolling wide flat steel finish mill, a finish rolling inlet machine frame F1 adopts negative convexity working roll forming, a machine frame F2, a machine frame F3 and a machine frame F4 adopt cubic CVC working roll forming, and a machine frame F5, a machine frame F6, and a machine frame F7 adopt negative convexity working roll forming of sine curves and are matched with periodic roll shifting of the working roll with long stroke. The supporting rolls of all the machine frames of the finish mill set adopt positive convexity roll forming of sextic polynomes. The method improves the transverse rigidity of the machine frames of the finish mill, improves regulation and control efficiency of roll bending force of the working roll, and reduces flexibility deformation of the roll. The roll forming configuring method for the finish mill set improves stability of the wide flat steel rolling, reduces the deflection amount of the wide flat steel, prolongs the planned length for rolling and greatly improves profile shape control precision of the wide flat steel.
Owner:SHOUGANG CORPORATION

Mask for Hardening Sealant and Method of Manufacturing Flat Display Device Using the Mask

In a mask for hardening a sealant and a method of manufacturing a flat display device using the mask, the mask includes a main body in which a transmission slit is formed, and a partial shielding portion partially shielding the transmission slit. The transmission slit corresponds to the shape of the sealant enclosing a light-emitting portion formed on a substrate. By using such a mask, the partial shielding portion covers a portion where the amount of laser irradiation is relatively large, thus hardening the sealant uniformly across the entire regions of the sealant, and thus guaranteeing a stable encapsulating structure.
Owner:SAMSUNG DISPLAY CO LTD

Steckel mill rolled piece head-and-tail deviation control method

The invention discloses a steckel mill rolled piece head-and-tail deviation control method which comprises the following steps that: based on existing equipment configuration, different modes are distinguished by integrating the rolling information of a steckel mill according to the rolled piece deviation and rough rolling force in the final step of rough rolling, then the deviation controlled by roll gaps on both sides of the steckel mill is determined, and roll gap setting control for preventing deviation is carried out. Through the method, the hand-and-tail deviation of strip steel can be reduced, shut-down accidents caused by the deviation of strip steel can be prevented, and the rolling stability of the steckel mill can be improved.
Owner:BAOSHAN IRON & STEEL CO LTD

Thermionic electron emitter and x-ray souce including same

A thermionic electron emitter (1) is proposed comprising an inner part (2) including a heatable flat emission surface (3) and an outer part (4) including a surrounding surface (6) substantially enclosing the emission surface and a heating arrangement for heating the emission surface to a temperature for thermionic electron emission. The outer part is mechanically connected to the inner part in a connection region (10) apart from the emission surface. Furthermore, the surrounding surface is thermally isolated, e.g. by a gap (14), from the emission surface in an isolation region apart from the connection region. By providing a surrounding surface enclosing the emission surface which may be on a similar electrical potential as the emission surface but which can have a substantially lower temperature than the emission surface without influencing the temperature distribution within the emission surface, an improved electron emission distribution and homogeneity can be obtained.
Owner:KONINKLIJKE PHILIPS ELECTRONICS NV

Battery module having heat dissipation member of novel structure and battery pack employed with the same

Disclosed is a battery module including a plurality of plate-shaped battery cells mounted in a module case in a stacked state, wherein each of the plate-shaped battery cells is configured in a structure in which an electrode assembly is mounted in a battery case formed of a laminate sheet, the battery module is configured in a structure in which a plurality of heat dissipation members disposed at two or more interfaces between the battery cells and a heat exchange member to integrally interconnect the heat dissipation members are mounted at one side of a battery cell stack, and heat generated from the battery cells during charge and discharge of the battery cells is removed by the heat exchange member via the heat dissipation members.
Owner:LG ENERGY SOLUTION LTD

Apparatus for carrying out improved control of rotary machine

In an apparatus, a predicting unit uses, as an initial value of a controlled variable, at least one of a first measured value of the controlled variable and a second measured value of a physical variable expressed as a function of the controlled variable. The predicting unit predicts, based on the initial value of the controlled variable, a value of the controlled variable when a driving mode of a switching element of a power converter is set. A driving unit has an integral element and determines, based on an output of the integral element to which a deviation between the predicted value of the controlled variable and a command value of the controlled variable is inputted, an actual driving mode of the switching element to thereby drive the switching element in the determined driving mode.
Owner:DENSO CORP +1

Method for setting in-furnace tension of continuous annealing unit on line

The invention relates to a method for setting the in-furnace tension of a continuous annealing unit on line. The method comprises the following steps of: collecting the equipment structural characteristic influence coefficient and the sectional influence coefficient of a continuous annealing furnace and the furnace roller diameter of each section of the continuous annealing furnace; calculating a model coefficient in consideration of the influences of deviation, buckling and plate shape; calculating a preset value of the in-furnace tension of the continuous annealing unit; and putting the set value Tactmi of the in-furnace tension of the continuous annealing unit into the operation of the unit so as to finish the steps of setting the tension on line and the like. The method mainly has the advantages that: (1) by adopting a tension optimization model, the type and the specification of steel and the influence of the plate shape of an actually-supplied material are considered, namely one more dimension is considered; (2) actual equipment characteristics and an annealing process regulation can be completely combined by the tension model; and (3) in consideration of the problem of the comprehensive treatment of thermal buckling and deviation, the tension model is more flexible and more practical than a fixed table, and the model is simple and can be applied on line.
Owner:SHOUGANG CORPORATION

Reverse dragging device for construction of dragging large-span steel braced girder

The invention discloses a reverse dragging device for construction of dragging a large-span steel braced girder. The reverse dragging device comprises a temporary support and a winch, wherein the temporary support is provided with a slide way with a groove-shaped cross section, a crawler-type conveyor capable of sliding along the slide way is arranged in the slide way, the steel braced girder is arranged on the crawler-type conveyor, the upper portion of the front end of the temporary support is provided with a fixed pulley block, and a hauling cable wound on the winch bypasses the fixed pulley block and is connected with the front end of the steel braced girder via a movable pulley block. The reverse dragging device for the construction of dragging the large-span steel braced girder is simple in structure, reasonable in design, good in bearing performance, safe, reliable, high in construction efficiency, high in practicability and worthy of popularization and application.
Owner:中交二公局第四工程有限公司
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