37 results about "Signal on" patented technology

In a shift register and an LCD having the same, the shift register includes stages having odd stages for receiving a first clock signal and even stages for receiving a second clock signal and all stages receive a control signal. Each of the stages includes a pull-up section for providing one of first and second clock signals to an output terminal, a pull-down section for providing a first power voltage to the output terminal, a pull-up driving section for turning on/off the pull-up section in response to the control signal, a first pull-down driving section for outputting a second control signal, and a second pull-down driving section for turning off the pull-down section in response to the input signal and turning on the pull-down section in response to the second control signal.

The invention discloses a method for realizing content scaling of a touch screen, comprising the following steps: when a touch and pressing signal that a user touches and presses the touch screen is obtained, the coordinate data of each touch and pressure point when touch and pressing operation is carried out and the duration of the touch and pressing signal on the touch screen are collected; thescaling type and the corresponding scaling factor of the content of the ouch screen, required by the user, are determined according to the coordinate data and the duration of the touch and pressing signal on the touch screen; the corresponding scaling operation is carried out according to the determined scaling type and the scaling factor; correspondingly, the invention further discloses a terminal; the invention can meet requirements of the user for content scaling of the touch screen conveniently and intuitively.

Demultiplexer capable of coping with bit deviation of a comma code to suppress increase of operating frequency. The demultiplexer comprises a circuit (20) serially supplied with received data to perform serial-to-parallel conversion on the received data, a comma detection circuit (30) for activating a comma detection signal on detection of coincidence between the serial data transferred on parallel paths with clocks corresponding to received clocks halved in frequency and a comma code, and a control circuit (137-139, 40) for elongating and outputting the activated time duration of the comma detection signal by a predetermined time. The demultiplexer also includes a recovery clock generating circuit (50) composed of a state machine transferred between different states based on the frequency-halved clocks and which, on receipt of an output signal of a control circuit (40), varies the period of the recovery clock to output the resulting clock. The demultiplexer also includes first and second delay circuits (131-133, 134-136) and first and second shift registers (121-125, 126-130) for receiving outputs of the first and second delay circuits to convert outputs into parallel data. The demultiplexer also includes a latch circuit (70) receiving outputs of respective stages of the first and second shift registers in parallel and sampling parallel outputs with recovery clocks to output resulting parallel data. In case of occurrence of bit deviation, recovery clocks are elongated by a predetermined time duration for only one period depending on the state of bit deviation.

An infrastructure equipment transmitting/receiving data to/from one or more communications devices in a wireless communications network, includes a transmitter, receiver, and controller controlling the transmitter and receiver to provide a wireless access interface providing communications resources arranged in time divided units of a system bandwidth providing plural blocks of communications resources, and one or more narrowband carriers. Each carrier provides, within a carrier frequency bandwidth, communications resources for allocation to narrow band communications devices, the carrier bandwidth being less than and within the system bandwidth, signals being transmitted to the narrowband communications devices via the narrow band carriers with a first power. The controller controls the transmitter to transmit signals on a down-link of a narrowband carrier to a narrow-band communications device with an increased power, power of the signals being increased to a greater second power to reduce a time of communicating a high priority message.

An optical transmission apparatus that protects different types of signals with a common backup transponder. The optical transmission apparatus includes working transponder units that relay respective optical signals on corresponding working transmission lines to or from external client devices, a backup transponder unit that can relay optical signals of different interface types, a 3:1 optical switch unit and a 1:3 optical switch unit that connect the external client devices and the working transponder units, and can connect the external client device and the backup transponder unit, and a monitor control unit that monitors occurrence of a failure in the working transponder units and the backup transponder unit, and controls switching of the transmission lines upon detection of a failure.

A method and an apparatus for a trouble-location on a transmission line of a concurrent double line are provided. The method includes the steps of: converting a three-phase voltage and current signal on the transmission line to a small signal; collecting and storing the converted voltage and current value as data; comparing the data with predetermined reference data to determine the trouble of the transmission line as well as trouble types; separating and obtaining the voltage and current data after and before the trouble responding the comparing step; performing trouble location algorithm for the obtained data based on a predetermined starting mode to get a current distribution factor, and caculating the trouble distance and trouble information at the trouble point by utilizing the current distribution factor.

A method and apparatus are disclosed for reducing cross-talk in an unbalanced channel with a reduced number of redundancies. A cross-talk canceller is disclosed that uses a multi-dimensional finite impulse response (FIR) filter to process a received signal. Redundancies are reduced or even removed entirely by processing the signals received on each twisted pair in a vector form, using multi-dimensional finite impulse response filters. The signals received by a transceiver on each twisted pair are represented in a vector form so that the signals received on each twisted pair, and the cross-talk effect that each signal has on one another, can be performed collectively. A multi-dimensional cross-talk canceller processes a vector representation of the corresponding signals transmitted by the transceiver on each twisted pair. An adder sums the equalized vector representation of the signals received by the transceiver and the processed vector representation of the signals transmitted by the transceiver to generate an estimate of the received signal on each twisted pair.

The invention discloses a device and method for detecting the optical detector working point of a particle detector. The device comprises a laser, an external modulation device, a cylindrical lens group, a sample cell, a focusing lens and an optical detector which are distributed according to preset positions, wherein the external modulation device is used to generate a detection signal and load the detection signal on the laser beam sent by the laser; and the device also comprises an oscilloscope and a processing circuit, wherein the optical detector is connected with the oscilloscope and the processing circuit through signal wires respectively to display the detection signal from the external modulation device on the oscilloscope and process the detection signal in the processing circuit. By using the device and method of the invention, the optical detector can work in a linear work area and the particle detection can be performed more accurately.

The invention discloses a fault detection system and method for an electric power grid. The power grid is connected with a detection circuit, a plurality of current transformers are arranged on each of branch lines and are used for acquiring current signals on the power grid, the detection circuit is connected with a fault judging circuit, a photoelectric conversion unit, a fault level judging unit and a signal generator are arranged on the fault judging circuit, the fault judging circuit is connected with an alarm processing circuit, and the alarm processing circuit is also connected with a monitoring center. The fault detection system and method disclosed by the invention have the benefit that as the current transformers are arranged on the detection circuit, the current information on the power grid is obtained through the current transformers, and the information of fault signals is determined through the plurality of judging units and is released through an alarm device and the monitoring center, so that the fault can be removed at the highest speed. The fault detection system disclosed by the invention is simple in structure, convenient to operate and lower in cost.

The invention provides a pulse interference signal detection and suppression method. The method comprises the steps of: firstly judging whether there is pulse interference, calculating an interferencesuppression threshold if there is interference, and performing suppression processing on interference with the amplitudes of time domain sampling signals exceeding the threshold. Thus, the method cansuppress interference, reduce the influence of artificial or unintentional pulse interference signals on received signals and provide early warning for relevant apparatuses and products being used inan environment.

The invention relates to the technical field of graphical interface display of mobile equipment, in particular to a touch screen-based structured web page displaying and switching method. The method comprises the following steps of calculating the scaling of a web page after an web application receives an enabled instruction; scaling all content in the web page according to the scaling of the web page and displaying the web page after the scaling in the viewing area of a display screen in a centering manner; gathering touch signals on a touch screen; analyzing touch operation on the touch screen according to the touch signals; determining a to-be-displayed web page when the displacement of the touch operation reaches a predetermined threshold in a preset direction; switching the web page on the display screen into the to-be-displayed web page. By adopting the displaying and switching method, the interface appearing ability of the touch screen is improved, a web page architecture which is higher in logicality and easier to develop is provided for developers, and the more friendly reading and operation experience is provided for users.

A method for sampling an analogue radiofrequency signal comprising reception of the analogue radiofrequency signal, sending of the received signal on two analogue channels, each channel performing a first signal sampling operation, including a filtering step eliminating signal frequencies that could fold on the useful signal during sampling such that the sampled signal represents a filtered version of the received signal, wherein the sampling frequency is taken to be equal to the frequency of the signal carrier divided by a factor Ndiv1+½, Ndiv1 being an integer number, to bring the useful signal to half of the sampling frequency after sampling.

The invention discloses a method for switching speaking right in a mobile terminal talkback communication, which comprises the following steps that: when a called terminal needs to speak, the called terminal sends a request signaling on a subframe of a feedback signaling; a calling terminal receives the request signaling and sends a speaking right switching signaling on a subframe of a service channel; and the called terminal receives the speaking right switching signaling to finish the switching of the speaking right. The method ensures that a half-duplex talkback communication system betweenGSM mobile terminals works reliably, the speaking right is switched fairly, and the calling terminal is switched smoothly.

The invention relates to a shift register circuit and an upper pulling unit thereof. The shift register circuit is provided with a plurality of shift registers in serial connection and in sequence; each shift register at least comprises a phase shifting unit and the upper pulling unit, wherein the phase shifting unit receives a first input signal, a first clock signal and a second clock signal; an electrical level of the first clock signal and an electrical level of the second clock signal are reversed phases; and the upper pulling unit is used for pulling an output signal on the output end to the high electrical level. The upper pulling unit at least comprises a logic unit, wherein when the shift register is operated in any period, the upper pulling unit produces no current path.

A signal processing device comprises: a band detecting means for detecting a frequency band which satisfies a predetermined condition from an audio signal; a reference signal generating means for generating a reference signal in accordance with a detection band by the band detecting means; a reference signal correcting means for correcting the generated reference signal on the basis of a frequency characteristic thereof; a frequency band extending means for extending the corrected reference signal up to a frequency band higher than the detection band; an interpolation signal generating means for generating an interpolation signal by weighting each frequency component within the extended frequency band in accordance with a frequency characteristic of the audio signal; and a signal synthesizing means for synthesizing the generated interpolation signal with the audio signal.

The invention provides a material self-adaptive digital engraving machine. The digital engraving machine comprises an upper computer and a lower computer as well as an engraving machine, wherein the upper computer is formed by a computer; the lower computer is formed by a controller; signal communication wires are connected between the upper computer and the engraving machine and between the lower computer and the engraving machine; the lower computer is connected with a first sensor, a second sensor and a third sensor, wherein the first sensor is used for detecting a shock signal on an engraving machine platform, the second sensor is used for detecting the tool feed rate of the engraving machine, and the third sensor is used for detecting rotation speed of a spindle of the engraving machine; and the lower computer, the engraving machine, the first sensor, the second sensor and the third sensor form a control closed loop. The material self-adaptive digital engraving machine provided by the invention has the following advantages that: by using the engraving machine, relevant machining parameters can be automatically adjusted to an optimal range according to different machining materials; labor cost is saved; and the working efficiency is increased; and the engraving machine has the advantages of wide application range and no influence from the operations of operators.

A method of multiplexing optical signals in a node of an optical network including as inputs a plurality of electrical signals, a plurality of laser transmitters, and as outputs a plurality of optical fibers, (a) generating clock pulses as a first clock frequency; (b) dividing the clock pulses respectively into a number of parallel trigger outputs; (c) sampling the electrical signals respectively by triggering on the parallel trigger outputs; (d) converting the sampled electrical signals to sampled optical signals by modulating respectively the laser transmitters with the sampled electrical signals and outputting respectively the sampled optical signals on the optical fibers; (e) combining the sampled optical signals onto a single optical fiber.

A circuit and method provide a charge sharing function during skewed data bus conditions in an integrated circuit memory. The charge sharing circuit includes two additional circuit blocks, one coupled to each of the capacitive lines in the charge-sharing line set, to provide the charge recycling feature. An extra clock signal is active one cycle early during a first clock period to trigger an extra drive circuit to generate a voltage differential on a first capacitive line that is similar to the voltage level generated when real data is being propagated. The presence of an extra voltage signal on the first capacitive line takes place earlier than what would normally happen and allows for proper charge sharing between a second capacitive line and the first capacitive line. Also, there is an additional control signal associated with a last clock period following normal non-skewed charge sharing. The additional control signal triggers a reference read circuit to generate data and a voltage on the first capacitive lines similar to the voltage present during real data for proper charge sharing. The additional read and drive circuit blocks are partial copies of the normal read and drive circuits so that a matching voltage can be generated on the appropriate capacitive signal lines.

The invention discloses an all-optical sampler, comprising a continuous laser which is used for generating continuous signal light; an optical modulator which is driven by a radio frequency signal and is used for modulating an analog radio frequency signal through combination with the signal light, thereby generating continuous analog signal light; a polarization controller which is used for controlling a polarization state of the analog signal light; a first coupler which is used for allocating the low-power analog signal light into two ways of light according to a proportion; a Mach-Zehnder interferometer, wherein a first interference arm and a second interference arm of the Mach-Zehnder interferometer are used for receiving the two ways of analog signal light allocated by the first coupler; and a second coupler which is used for receiving the analog signal light output by the Mach-Zehnder inter-ferometer, coupling the analog signal light and then outputting sample signal light. According to the all-optical sampler, through utilization of cross-phase modulation effect of pump light for the analog signal light, the phase difference of the signals on the two interference arms is changed, so transmittance of the signals is changed; when the pump light exists, the signals are transmitted; and when the pump light does not exist, the signal transmittance is 0, thereby sampling the signals.

The invention provides a processing circuit and method for multiple power supply ports and electronic equipment, the processing circuit comprises N control modules and a bus; each control module is used for being correspondingly connected with one power supply port, and a communication interface of each control module is connected to the bus; the bus is connected with a power ground through a busresistor, and the bus is a single-wire bus; the control module can send a numerical signal to the bus; the change amplitude of the first physical quantity of the bus signal on the bus is associated with the first physical quantity or the second physical quantity of all the target signals sent to the bus. The control module can also detect a first physical quantity of a bus signal on the bus through the communication interface, and adjust the working parameters of the connected power supply port according to the change amplitude of the detected first physical quantity.

The invention provides a method, a system of signal processing and a mobile terminal. The signal processing method comprises the steps that levels of signals transmitted by at least two data lines are detected, and a group of first data lines transmitting high-level signals and a group of second data lines transmitting low-level signals; a first number and a second number are counted; whether the first number is larger than the second number is adjusted and an adjustment result is acquired; when the adjustment result indicates that the first number is larger than the second number, data lines in the group of the first data lines are controlled to transmit high-level signals, and data lines in the group of the second data lines are controlled to transmit low-level signals so as to reduce signal power, and accordingly prevent signals from interfering with an antenna, improve receiving sensitivity of the antenna, reduce affects of noise signals on communication channels and improve communication quality of the mobile terminal. Furthermore, when the signal processing method is applied to the mobile terminal, devices in the mobile terminal can be randomly arranged so as to reduce the thickness of the mobile terminal.

The invention relates to a control circuit of a power tuning gyroscope, in particular to a circuit for reducing output noise of a power tuning gyroscope. It is composed of resistor R1, resistor R2, power tube N1 and torque device L. The input voltage Ui is connected to the positive-phase input terminal of the power amplifier and grounded through the resistor R1 at the same time. The inverting input terminal of the power amplifier is grounded through the resistor R2 and passed through The torque device L is connected to the output terminal of the power amplifier, and it is used as the output voltage Uo at the same time. This device is a power amplifier designed with constant current source technology, the AC component on the torquer is inside the power amplifier circuit, there is no AC signal on the torquer in the sampling voltage, the output noise is greatly reduced, and the measurement performance of the gyroscope is improved.

The invention discloses a motherboard capable of monitoring VR (voltage regulation) states. The motherboard comprises a BMC (baseboard management controller) and a plurality of VR schemes. CLK (clock) signals and DATA signals of all the VR schemes are connected onto the same I2C (inter-integrated circuit) bus, CLK signals on the I2C bus are connected into a GPIO (general purpose input/output) 0 pin of the BMC, DATA signals on the I2C bus are connected into a GPIO1 pin of the BMC, Fault # pins of all the VR schemes are connected onto a GPIO2 pin of the BMC, and the GPIO2 pin of the BMC is pulled up to reach voltages V1 by a resistor R1. A method for designing the motherboard includes steps of selecting the VR schemes with the I2C bus and interconnecting all the VR schemes with the BMC; connecting the Fault # pins of all the VR schemes with the BMC; setting addresses of each VR scheme. The motherboard and the method have the advantages that working states of all the VR schemes can be captured in real time, particular power failure locations and reasons can be recorded, and accordingly research and development staffs can conveniently carry out debug.

The embodiment of the invention provides a data transmission method and device. The method is applied to a wireless communication system. The system comprises an access point and a plurality of sites,wherein each site transmits data through a narrowband channel and the access point; and a first site transmits data through a first narrowband channel and the access point. The method comprises the following steps that: when a counter of the first narrowband channel retreats to 0, the access point determines that at least one second site transmits data on a narrowband channel other than the firstnarrowband channel; and when the at least one second site completes data transmission and the first narrowband channel is determined to be idle, the access point transmits data to be transmitted to the first site through the first narrowband channel. Through adoption of the data transmission method and device, cooperation of a plurality of narrowband channels is realized, namely, the plurality ofnarrowband channels can transmit data, and the interference of transmission narrow channels with signals on receiving narrow channels under the situation that the access point transmits data on a part of channels and receives data on a part of narrow channels is avoided.

The invention relates to a static monitoring method for an atmospheric electric field. The static monitoring antenna for the atmospheric electric field monitors the atmospheric electric field around the device in real time. Either a positive or negative electric field will sense a weak voltage signal on the monitoring antenna for the atmospheric electric field when the atmospheric electric field voltage around the device rises. The sensed voltage signal is rectified by a bridge composed of a diode D1, a diode D2, a diode D3, and a diode D4. The rectified signal is sent to an amplifying circuitcomposed of a field effect transistor and a resistor R1 through an adjustment potentiometer, and the amplified signal is sent to a subsequent circuit for processing. The atmospheric electric field monitoring antenna of the invention has a self-protection function when struck by lightning, and forms an active lightning protection circuit with the subsequent circuit. The positive lightning and thenegative lightning generated by the atmosphere around the protected device can be detected.

The magnetic field communication system for measuring the flutter of the turbine blade in accordance with an embodiment of the present disclosure includes a sensor module placed on an outer surface of the turbine blade to sense a signal on the flutter of the turbine blade; an interface converting the signal on the flutter sensed by the sensor module into a magnet field signal to transmit it to the outside of a casing surrounding the turbine blade; and an adaptor receiving the magnetic field signal to generate a power source of the system, and analyzing the magnetic field signal to determine the degree of the flutter of the turbine blade.

A signal converting apparatus includes the following elements. A converting section converts an input signal into output signals on the basis of the values of reference parameters, serving as references of a plurality of parameters for signal conversion, and the values of newly proposed parameters. An evaluation input receiving section receives an evaluation input indicating the selection of either the output signal based on the values of the reference parameters or the output signal based on the values of the newly proposed parameters. A parameter updating section linearly changes the values of the newly proposed parameters when the evaluation input indicates the selection of the output signal based on the values of the newly proposed parameters, and nonlinearly changes the values of the reference and newly proposed parameters when the evaluation input indicates the selection of the output signal based on the values of the reference parameters.