81results about How to "Improve the sense of speed" patented technology

The invention discloses a tunnel back reflection illuminating system setting method based on train speed control and train distance keeping. The method comprises the steps of: arranging tunnel side walls, red and white facade marked lines on lower edges of curbs, and road surface raised pavement markers on road sides to form a space high-frequency vision information stream; secondly, arranging a plurality of layers of outline markers on the tunnel side walls at intervals of 25-50m in an advancing direction, arranging side wall vertical marked lines and extending to the top of a cave, transversely arranging transverse wrong vision marked lines on the road surface to form a space medium-frequency vision information stream; and then arranging two white folded lines and vibration marked lines on the road surface every 3 medium-frequency transverse marked lines at intervals of 100-200m in the advancing direction, and arranging two white folded lines on the side walls to form a space low-frequency vision information stream. Multiple channels of frequency vision systems are made of a high-strength back reflection material, so that a back reflection illuminating system is formed, perception of velocity and perception of distance of a driver are effectively improved, thus the integration of tunnel illuminating benefit and tunnel safety is achieved. The tunnel back reflection illuminating system setting method can be applied to tunnel illumination of low-light expressways with speed limit of 60-80km / h and traffic safety facility improvement.

The invention discloses a low-cost mountainous-area expressway tunnel entrance vehicle speed control facility designing method which comprises the following steps of: setting red-and-white mark lines and road-side road surface and in-road lane line raised road signs on the side wall of the tunnel entrance, the lower edge of curb and the plane of the overhauling way at a space of 1.5-3m to form a high-frequency vision information flow; setting intermediate-frequency information at the tunnel entrance in the advancing direction every 20-30m, setting 3 layers of delineators on each side wall of the tunnel from top to bottom, setting a side wall vertical mark line and 2 side wall white broken lines, and setting a transverse staggered vision mark line and 2 white broken lines on the road surface to form an intermediate-frequency vision information flow; and forming a retroreflection illumination system from the retroreflecting materials by use of the high and intermediate-frequency vision information. Road-side road surface raised road signs and transverse deceleration mark lines (consisting of transverse vibration mark lines and transverse staggered vision mark lines) are arranged in front of the tunnel entrance, and the longitudinal space of the transverse deceleration mark lines turns smaller at first and then becomes stable to form a tunnel pre-deceleration system. The retroreflection illumination system and the deceleration system form the tunnel entrance vehicle speed control facility which realizes reasonable transition of the vehicle speed at the tunnel entrance and is suitable for the mountainous-area expressway tunnel entrance with the speed limit of 60-80km / h.

The invention concerns a method of displaying data on a client computer as well as a client computer and computer executable software code for data display on the client computer. The client computer retrieves a web page containing statical data of a graphical user interface and at least one inclusion for including the dynamic data of the web page, wherein said inclusion points to a program located at a network server and adapted to output a script. The client computer stores the web page in a cache memory. The script that contains dynamic data generated by the program is transferred from the network server to the client computer. A browser of the client computer includes the dynamic part into the static part of the web page by means of the dynamic data included in the retrieved script.

The invention relates to an urban river-crossing bridge traffic landscape design method based on multi-frequency color information. Yellow and black or blue and white lamp pole facade marking lines are arranged on the lower edges of two sides of lamp poles, at the interval of 25 m to 35 m, of a bridge; transverse visual illusion marking lines are arranged at the positions, corresponding to the yellow and black or blue and white lamp pole facade marking lines, of the road surface; road surface protruding road marks are arranged at the interval of 12.5 m to 17.5 m, and therefore the space intermediate frequency visual information flow is jointly formed. Yellow and black or blue and white road side facade marking lines are arranged on the lower edge and the top of curb stone at intervals of 1.5 m to 3 m, and therefore the space high frequency visual information flow is formed; a set of road surface transverse white folding lines is arranged every four lamp poles in the advancing direction, and yellow or blue bridge handrails are arranged on the road side, so that the space low-frequency visual information flow is formed. The multi-frequency color information flow can effectively improve the speed perception, the distance perception and the visual sensitivity under high and low illuminance of a driver in the vehicle driving process, and unification of urban river-crossing bridge traffic landscape coordination and vehicle driving safety is achieved.

The present invention relates to an apparatus for dividing a bank in a flash memory. A block of the flash memory is divided into two banks and each page buffer is located between the two banks to share an input / output line. Therefore, it is possible to shorten the length of a bit line, improve a data sensing rate, and allow one bank to perform one operation while the other bank performs a read, write or erase operation.

According to a semiconductor device of the present invention, a differential potential between a sense amplification level and a precharge level of a sense amplifier is set to a power supply potential (VCC-GND) so as to improve resistance against degradation of hold characteristics. Further, low power consumption can be realized along with the improvement. Additionally, the precharge level is set to a power supply of GND or VCC so as to realize a stable supply of the precharge level. Further, a chip size can be reduced since a power supply circuit for precharge is not needed.

A substrate voltage control technique that prevents the operating speed from being decreased and suppresses a leakage current due to a lower threshold voltage with respect to a low voltage use. Since a center value of the threshold voltages is detected by plural replica MOS transistors, and a substrate voltage is controlled to control a center value of the threshold voltages, thereby making it possible to satisfy a lower limit of the operating speed and an upper limit of a leakage current of the entire chip. On the other hand, the substrate voltage is dynamically controlled during the operation of the chip, thereby making it possible to decrease the center value of the threshold voltages when the chip operates to improve the speed, and to increase the center value of the threshold voltages after the operation of the chip to reduce the leakage current of the entire chip.

A sense amplifier for use in sensing a signal in an integrated circuit comprises an amplifier portion and an output portion. The amplifier portion comprises a gated diode having a gate terminal. The output portion comprises an output transistor in signal communication with the gate terminal of the gated diode and having a source terminal. A variable source voltage acts on the source terminal of the output transistor when the sense amplifier is in operation. The variable source voltage is temporarily altered when the sense amplifier is actively sensing the signal in the integrated circuit.

The invention relates to a luminous induction system for rural road tunnels. According to the light environment characteristics of different sections of the tunnel, driving characteristics and visual characteristics of the driver, short tunnels are divided into short tunnels <200m and medium-short tunnels of 200-500m, and short tunnels of 200-500m are divided into: entrance section, middle section, In the exit section, multi-frequency and multi-size luminous induction facilities are set according to the characteristics of the road section; a reminder area is also set in the middle section; the high-frequency small-size induction information is set on the outside of the lane or at the maintenance road with the highest brightness, and the medium-frequency small-size induction information is set on The brightness of the side wall is lower than that of the curb induction information. The medium-scale induction information of the medium-frequency information is set on the side wall, and the low-frequency large-scale induction information is set on the side wall and extends to the top of the tunnel. Taking into account both safety and energy saving, while avoiding optical illusions and ensuring safety, it is especially suitable for short rural road tunnels (<500m) without electricity or lights.

As memory geometries continue to scale down, current density of magnetic tunnel junctions (MTJs) make conventional low current reading scheme problematic with regard to performance and reliability. A body-voltage sense circuit (BVSC) short pulse reading (SPR) circuit is described using body connected load transistors and a novel sensing circuit with second stage amplifier which allows for very short read pulses providing much higher read margins, less sensing time, and shorter sensing current pulses. Simulation results (using 65-nm CMOS model SPICE simulations) show that our technique can achieve 550 mV of read margin at 1 ns performance under a 1V supply voltage, which is greater than reference designs achieve at 5 ns performance.

A semiconductor memory device includes a first circuit which generates a first potential lower than the external power supply voltage, a second circuit which generates a second potential lower than the first potential, a capacitor charged to the first potential, a bit line connected to a memory cell, a sense amplifier which performs sense operation to amplify a potential on the bit line to the second potential, and a connection control circuit which connects the first circuit to the sense amplifier within a first time period from a start of the sense operation, and which connects the second circuit to the sense amplifier after the lapse of the first time period. The first circuit is enabled before the start of the sense operation and is disabled after the completion of charging of the capacitor, and the output of the first circuit is thereby set in a floating state.

The invention relates to an anti-dazzle principle based design method for traffic engineering facilities at a road tunnel exit. The method is characterized in that tunnel exit anti-dazzle facilities are arranged in front of the tunnel exit to ease intensive brightness transition caused by insufficient illuminating lamps at the tunnel exit; coloured painting materials of which reflection coefficients gradually reduce are arranged on the tunnel ceiling, side walls and roads from the top down to ease brightness transition and beam divergence at the tunnel exit, so as to lift the dazzle area, reduce the dazzle area below the visual line of a driver and increase the visual adaptation time; horizontal road direction lines and road lane keeping lines are arranged on the road, and side wall vertical direction lines and side wall double-layered contour marks are arranged on the side walls, so as to form a closed mid-frequency retroreflective information stream together; high-frequency red and white marked lines arranged on maintenance road edges and road side reflective raised route markers form a high frequency visual information stream to increase the driver's instantaneous velocity sensation, and promote the driver's speed feeling and distance feeling, and accordingly, the coordination and unification of the tunnel lighting energy conservation and tunnel traffic safety are realized.

Circuits and methods are described for reducing leakage current and speeding access within dynamic random access memory circuit devices. A number of beneficial aspects are described. A circuit is described for an enhanced sense amplifier utilizing complementary drain transistors coupled to the sense or restore signals and driven by gate voltages which extend outside of the voltage range between VSS and VDD. The drain transistors are self reverse-biased in a standby mode. A method is also described for reducing leaking in non-complementary sense amplifiers by modifying the sense and restore gate voltages. Another aspect is a new negative word line method utilizing stacked pull-down transistors and a multi-step control circuit. In addition a level shifter scheme is described for preventing unwanted current flow between voltage sources while discharging control signal PX.

A touch display device comprises a touch panel including a plurality of touch electrodes; and a touch driving circuit configured to sense one or more of the plurality of touch electrodes, wherein the touch driving circuit has an operation period including a plurality of touch intervals that includes a first sensing interval and a second sensing interval, and the first sensing interval includes at least a first time division sensing interval and the second sensing interval includes at least a second time division sensing interval, and wherein the touch driving circuit is configured to detect a pen signal output from a first pen through one or more touch electrodes of the plurality of touch electrodes during the first time division sensing interval, and detect a pen signal output from a second pen through one or more touch electrodes of the plurality of touch electrodes during the second time division sensing interval.

A sense circuit includes a differential amplifier circuit including an inverting input section, a non-inverting input section and an output section, an electrical capacitor connected between the inverting input section and the output section, and a field effect transistor including a source, a drain, and a gate. One of the source and the drain is connected to the inverting input section, and the other of the source and the drain is connected to the output section. A reference potential is supplied to the non-inverting input section, and an output section of a photoelectric conversion cell having an added switching function is connected to the inverting input section.

Embodiments of the invention provide a sense amplifier, a SRAM chip comprising the sense amplifier and a method for conducting read operation on a SRAM cell. The sense amplifier according to an embodiment of the invention comprises a cross coupling circuit, a tail current transistor and an output stage, wherein source of the tail current transistor is connected to a negative level. With the scheme according to embodiments of the invention, speed of the sense amplifier can be enhanced, thereby increasing read speed of the SRAM chip.

A sense amplifier power-gating circuit and method is disclosed which is of particular utility with respect to DRAM devices, or those incorporating embedded DRAM, and having a power-down (or Sleep) mode of operation. In accordance with a particular technique of the present invention, the local sense amplifier driver transistors serve a dual purpose as both driver and power gate transistors thereby obviating the need for large, distinct power-gating devices. This serves to minimize on-chip area requirements while not degrading sensing speed as in conventional approaches.

The invention provides a large-dynamic range Brillouin rapid measurement system based on multiple slope assistance. An output end of a laser is connected to an input end of a first coupler. A first output end of the first coupler is connected with an input end of the second coupler through a first modulator, a first optical amplifier and a filter in sequence. A first output end of the second coupler is connected with a first input end of a third coupler through a second modulator. A second output end of the second coupler is connected with a second input end of the third coupler through a third modulator. An output end of the third coupler is connected with a second end of a sensing optical fiber through an isolator. A second output end of the first coupler is connected with a first end ofa first circulator through a fourth modulator, a second optical amplifier and a scrambler in sequence. The first circulator is connected with a first end of the sensing optical fiber at a second end,and is connected with an input end of a photoelectric detector at a third end. An output end of the photoelectric detector is connected with a processor through an acquisition card. According to thelarge-dynamic range Brillouin rapid measurement system based on the multiple slope assistance, the dynamic range of accurate measurement can be improved.

The invention relates to a swing scooter which mainly comprises a vertical rod. The bottom end of the vertical rod is provided with a front wheel and a clamping seat which is used for assembling a left bracket and a right bracket, pedal plates and rear wheels are respectively mounted at the tail ends of the left bracket and the right bracket, a first folding mechanism is arranged at the bottom end of the vertical rod, close to the clamping seat, and the left bracket and the right bracket are respectively provided with a second folding mechanism and a third folding mechanism so that the vertical rod, the left bracket, the right bracket, the pedal plates and the rear wheels can be respectively folded. In addition, a rotary driving mechanism is arranged between the pedal plate and the rear wheel and can drive the rear wheel and the scooter to advance. Accordingly, the invention not only provides a transport means with great amount of exercise, but also has the advantages of reduced size and portability because of foldability and has the environment-friendly benefit by freeing energy use and multiple functions such as high entertainment, and the like.

Provided are a water engineering seepage behavior fusing and sensing system and method. The system comprises a seepage-hidden optical fiber locating device, a seepage flow velocity distributed optical fiber monitoring device, an online seepage line diagnosis device and a seepage behavior optical fiber self-adaptive identification device, the location of a water engineering seepage point is realized by using the seepage-hidden optical fiber locating device, then, the seepage flow velocity of a water engineering is monitored by virtue of the seepage flow velocity distributed optical fiber monitoring device, the online diagnosis of a seepage line on a section of a whole water engineering structure can be realized by using the online seepage line diagnosis device, and finally, the current seepage behavior is integrally monitored and evaluated by using the seepage behavior optical fiber self-adaptive identification device, so that the water engineering seepage behavior fusing and sensing is completed. The optical information change of the optical fiber is acquired from multiple aspects and angles by using the four water engineering seepage monitoring devices, depending on the material and mechanical properties of the water engineering and relying on a distributed optical fiber monitoring technology, and furthermore, the monitoring and sensing of a seepage behavior of a water engineering are indirectly completed.

A non-volatile memory device includes a memory cell including a resistance variable device and a switching unit for controlling a current flowing through the resistance variable device; a read reference voltage generator configured to generate a reference voltage according to a skew occurring in the switching unit; and a sense amplifier configured to sense a voltage corresponding to the current that flows through the resistance variable device based on the reference voltage.

The invention provides a traffic safety facility for a roundabout of a rural-urban continuum and a design method of the traffic safety facility, aiming to improve the speed perception and the direction perception of a driver when the driver drives at the roundabout of the rural-urban continuum and improve the visual cognition capability of the driver to pedestrians crossing the street and barriers in a roundabout range. The facility comprises strip vertical face marker lines at the lower edge and the top of a roundabout annular-island curbstone; concrete separation piles are arranged between the outer side edge line of the roundabout annular-island curbstone and the outer side edge line of a road; concrete separation piles are arranged between the road side edge line of each road of the roundabout and a slope edge line; steel fixed separation piles and LED (Light Emitting Diode) lamp poles are arranged on pedestrian crosswalks and the lane edges at the sides of the roundabout, corresponding to the pedestrian crosswalks. The method adopts a low-cost road marker line and visual induction system and does not relate to a large-scale road infrastructure, so that the investment is small, the construction is easy and the effect is rapid to realize; the driving safety of the roads of the rural-urban continuum can be improved.

The invention provides a realizing device of a large-capacitance self-healing optical fiber sensing network based on a light spectrum type optical fiber sensor and a realizing method. The device comprises a light source, wherein the light transmitted from the light source sequentially passes through a coupler, n layers of sensing subnetworks, a wave length converter, a work optical fiber, a wavelength division multiplexer, an optical fiber, a receiving demodulator and a computer; and Maxn=the total energy of the light source / the energy required by each layer of sensing subnetwork. The invention is additively provided with a spare optical fiber and a cross connector in the network, thereby guaranteeing that the optical fiber sensing network can normally work when an optical fiber link goes wrong, so that the network has survivability. The number of sensors multiplexed by the sensing network is the sum of each layer of sensor, wherein, if each layer has k sensors, the number of the sensors is k*n. Maxk=the gross spectrum width of the light source / scanning resolution, thereby greatly expanding the capacitance of the sensing network. The light spectrum of the broadband light source is divided into m sections, Maxm=the gross spectrum width of the light source / the scanning resolution, the m sections are simultaneously scanned, and the scanning time can be shortened at the 1 / m of the original time, thereby improving the sensing speed of the sensing network.

A capacitive touch apparatus includes a first touch unit, a first voltage difference retrieving unit, a first feedback signal generating unit, and a control unit. The first touch unit has a touch substrate and a first conductive layer. The first voltage difference retrieving unit is electrically connected with the first conductive layer and outputs a first voltage signal and a second voltage signal. The first feedback signal generating unit outputs a first feedback signal according to the variation of the voltage difference between the first voltage signal and the second voltage signal. The control unit receives the first feedback signal for computing the touch position and outputs a power signal to the first voltage difference retrieving unit. Hence, the capacitive touch apparatus improves the sensing speed and reduces the manufacturing cost by the simple circuit design.

An apparatus controlling a velocity of a motor having a rotor, includes a sensing velocity calculator sensing a rotation velocity of the motor, and calculating a sensing velocity on the basis of the sensed rotation velocity of the motor; a velocity estimator estimating an estimation velocity of the motor based on an information about a position error of the rotor; and a reference velocity calculator dividing an overall velocity period of the motor into a plurality of unit velocity periods based on a command velocity for controlling the rotation velocity of the motor, calculating a sum of the sensing velocity, the estimation velocity, and the command velocity after multiplying at least one of the sensing velocity, the estimation velocity, and the command velocity by a predetermined weight, and outputting the sum as a reference estimation velocity of the motor.

The invention discloses a light sensing method of a light sensing device. The light sensing device includes a plurality of light sensing pixels. First scanning drive signals and second scanning drivesignals are provided to all light sensing pixels so as to enable all the light sensing pixels to start light sensing when a first predetermined time arrives and to end light sensing when a third predetermined time arrives, so that electric signals generated when the light sensing pixels execute light sensing are latched. After all the light sensing pixels end light sensing, an output control signal is provided to the light sensing pixels in sequence so as to control output of latch electric signals corresponding to the light sensing pixels.

The invention relates to the technical field of traffic safety of expressways, in particular to an expressway exit curved slope ramp sight induction system, which is characterized in that corresponding first-stage, second-stage and third-stage sight induction systems are respectively arranged in road section areas with speed limits of 40km / h and below, 40-60km / h and 60km / h and above; the sight line induction system comprises a high-frequency rectangular attached delineator arranged at the bottom of the guardrail, a medium-frequency combined rectangular attached delineator arranged in the middle of the guardrail and a medium-frequency warning linear induction mark arranged on the outer side of the guardrail, and the high-frequency rectangular attached delineator, the medium-frequency combined rectangular attached delineator and the medium-frequency warning linear induction mark are graded according to different speeds. The round delineators, the rectangular attached delineators and thevisual reference columns are arranged on the inner sides and the upper portions of the guardrails, so that delineator induction of a curved slope section can be improved, the sensing capacity of a driver to a curve and a longitudinal slope is enhanced, the driver is effectively warned, and the starting section, the middle portion and the ending section of the ramp are each provided with an annularlight reflection structure. And a lane indicator is arranged below the annular reflective structure so as to ensure that a driver can discover within a decision sight distance.