56results about How to "Simple control signal" patented technology

Subpixels on an electroluminescent (EL) display panel, such as an organic light-emitting diode (OLED) panel, are compensated for initial nonuniformity (“mura”) and for aging effects such as threshold voltage Vth shift, EL voltage Voled shift, and OLED efficiency loss. The drive current of each subpixel is measured at one or more measurement reference gate voltages to form status signals representing the characteristics of the drive transistor and EL emitter of those subpixels. Current measurements are taken in the linear region of drive transistor operation to improve signal-to-noise ratio in systems such as modern LTPS PMOS OLED displays, which have relatively small Voled shift over their lifetimes and thus relatively small current change due to channel-length modulation. Various sources of noise are also suppressed to further increase signal-to-noise ratio.

A non-volatile memory device with a page buffer having dual registers includes a memory cell array, a selector circuit and a page buffer circuit, the selector circuit being coupled to an exterior data line, the page buffer circuit including a first register and a second register being coupled between the memory cell array and the selector circuit, and the first register and second register being commonly coupled through a sense node. The first and second registers alternately write data to the memory cell array for programming. As one of the first and second registers performs programming, the other register stores data from the data line concurrently. In other words, the second register stores data from the data line when the first register is in programming, whereas the first register stores data from the data line when the second register is in programming.

An impulse driving method and apparatus thereof for a liquid crystal display (LCD) are provided. The gate driver of the liquid crystal device generates first scan signals for controlling gate lines of the liquid crystal device according to the received first start vertical signal and first output enable signal. The scan signals are generated corresponding to the pixel data signals outputted from the data driver of the LCD. Moreover, the gate driver of the LCD generates second scan signals according to the received second start vertical signal and second output enable signals. The scan signals are generated corresponding to black data signals output from the data driver of the liquid crystal device. Therefore, the control signal scheme is simplified and the black insertion ratio is easily controlled.

An electroluminescent (EL) subpixel, such as an organic light-emitting diode (OLED) subpixel, is compensated for aging effects such as threshold voltage Vth shift, EL voltage Voled shift, and OLED efficiency loss. The drive current of the subpixel is measured at one or more measurement reference gate voltages to form a status signal representing the characteristics of the drive transistor and EL emitter of the subpixel. Current measurements are taken in the linear region of drive transistor operation to improve signal-to-noise ratio in systems such as modern LTPS PMOS OLED displays, which have relatively small Voled shift over their lifetimes and thus relatively small current change due to channel-length modulation. Various sources of noise are also suppressed to further increase signal-to-noise ratio.

The invention provides a drive and control circuit for a fast solenoid valve. The drive and control circuit has the advantages that accuracy and stability are high, and control signals are simple. The drive and control circuit adjusts the intensity or the duration time of a strong shock current and a holding current according to the inherent characteristic of the solenoid valve and mainly comprises an output circuit and a feedback circuit. Two general timers are arranged for control over the strong shock current and the holding current respectively in the output circuit, an output signal OUT1 and an output signal OUT2 can be generated, when any signal is a high-level signal, a transistor V1 or V2 is switched on, then V3 is switched on through an MOSFET, PWM-OUT+ outputs +28V, and the solenoid valve is driven to work. The feedback circuit mainly comprises a difference operational amplifying circuit and a bleeder circuit, and the negative end PWM-OUT- of the solenoid valve is connected into a sampling resistor in the feedback circuit.

An electroluminescent (EL) panel with 2T1C subpixels is compensated for initial nonuniformity (“mura”). The current of each subpixel is measured at a selected time to provide a status signal representing the characteristics of the subpixel. A compensator receives a linear code value and changes it according to the status signals. A linear source driver drives the panel with the changed code values.

An active phased array antenna system with hierarchical modularized architecture is introduced, which includes an array antenna and a beamforming circuit. The array antenna includes a plurality of antenna units, number of which is N and which are arranged in array form. The beamforming circuit is for receiving a plurality of input signals and a plurality of phase control signals, and includes a hierarchical circuit structure based on phase shifters, for outputting a plurality of output signals based on the input signals according to phase values corresponding to the phase control signals and combinations of the phase values; the output signals are respectively coupled to the antenna units so as to generate a radiation pattern, wherein number of the phase control signals is T, T<N, wherein N=Πi=1PNi, M=Σi=1PNi, M−P≤T≤M, Ni (i=1 to P), M, P are all positive integers, P≥2, Ni≥2.

A method and an apparatus to control a high voltage output in an image forming system. The method includes setting a master processor to control an engine, and setting a slave processor to control a high voltage output; transmitting a command, which includes a timing and a level of the high voltage output, from the master processor to the slave processor; and determining the timing and level of the high voltage output after analyzing the received command, and controlling the high voltage output according to a predetermined high voltage output synchronization signal by the slave processor.

The data communication process between computing nucleus and external interface includes the following steps: 1. for the computing nucleus to set í‹input requestíŒ signal as valid when it allows and needs data input; 2. for the peripheral receiving the í‹input requestíŒ to respond the í‹input requestíŒ, set í‹input request response signalíŒ as valid and set the data on the í‹input data signalíŒ line; 3. for the computing nucleus to set data on í‹output dataíŒ end and set í‹output requestíŒ signal as valid when it allows and needs data output; 4. for the peripheral receiving the í‹output requestíŒ to respond the í‹output requestíŒ and set í‹output request response signalíŒ as valid; and 5. for the computing nucleus to set í‹busy processingíŒ signal as valid when it is busy in processing input data and there are new data to be input. The present invention has fast calculation speed, simple control, control based on the calculation completing condition, simplified relevant control and other advantages.

The invention discloses a separating mechanism of a guided fire extinguishing bomb. The mechanism comprises a bomb body, a tail part and a separating mechanism body, the separating mechanism body is arranged to be a double-layer structure which is divided into an upper layer cylindrical structure and a lower layer cylindrical structure, the upper layer cylindrical structure and the lower layer cylindrical structure are installed in a buckling manner, and the upper layer cylindrical structure is installed at the lower part of the bomb body in a threaded manner. The lower layer cylindrical structure is installed on the upper part of the tail in a threaded mode. The separating structure is used for separating the bomb body and the tail part of the fire extinguishing bomb to achieve the effect of rapidly throwing a fire extinguishing agent, the separating mechanism body is composed of a steering engine disc, a connecting rod, a crank and a buckle, the buckle is fixed to the steering engine disc through the connecting rod and the crank to be used for controlling the buckle to contract and expand, and threads are designed at the upper end and the lower end of the separating mechanism body. The mechanism is simple to control, the effect time is short, and the whole process is very efficient and fast. Due to the fact that no flammable and explosive object is used for separating kinetic energy, the whole separation process is very safe, and no potential safety hazard is generated in the storage and transportation process.

A light scanning device and a method thereof are provided. The device is under control of a controller for controlling an image-forming apparatus and includes a second S&H signal generator, light output part, and a light output controller. The second S&H signal generator generates a plurality of second S&H signals, each consisting of a sampling interval and a holding interval and generated using a first S&H signal provided from the controller. The light output part outputs a plurality of lights and the light output controller controls the light output part to generate the plurality of lights for the respective sampling intervals of the plurality of second S&H signals and sets a control signal value controlling intensities of lights to be maintained for the holding intervals of the plurality of second S&H signals on the basis of the intensities of the generated light. Accordingly, standardization of an interface between parts is simplified.

An active antenna system with multiple feed ports and a control method of the active antenna system are provided. The active antenna system includes an antenna radiation element, a first feed port and a second feed port. If the first control circuit is in a close state, the first feed port and a first physical position of the antenna radiation element are connected with each other, so that a signal is fed to the antenna radiation element through the first feed port and the first physical position. If the second control circuit is in the close state, the second feed port and a second physical position of the antenna radiation element are connected with each other, so that the signal is fed to the antenna radiation element through the second feed port and the second physical position.

A circuit arrangement and associated method for reducing crosstalk are disclosed. A load impedance is connected via a controlled current source to an input connection for supplying a supply voltage (Vin) in the circuit arrangement. The current source is actuated using a control means such that the current source outputs a current which corresponds to the average current drawn by the load impedance. In this manner, merely a small voltage drop occurs on the supply voltage while radio-frequency interference is concurrently mitigated.

An assembly for an LSI test supplies a test signal output from an LSI tester to a target LSI to be tested and outputs, to the LSI tester, a test result signal generated by processing of the target LSI performed in accordance with the test signal. The assembly for an LSI test includes: a peripheral circuit coupled to the target LSI and allowing the target LSI to operate in the same manner as in the application environment; and a printed circuit board on which the peripheral circuit is mounted.