45results about How to "Reduce output delay" patented technology

The invention belongs to the satellite positioning field and in particular relates to a real-time bayou precision relative positioning method. The real-time bayou precision relative positioning method particularly comprises the following steps: step I, initializing the integer ambiguity parameter; step II, carrying out cycle-slip detection; step III, performing pseudo-range single-point positioning; step IV, judging the difference of the observation epochs of a base station and a mobile station, calculating the difference of the observation epochs of the base station and the mobile station, if the difference value is more than 15s, returning to the step I, if not, entering the step V; step V, repairing cycle slip, calculating the integer ambiguity of a satellite which is subjected to cycle slip by use of the integer ambiguity of a satellite which is not subjected to cycle slip; step VI, solving the relative location of the base station and the mobile station. According to the method, the dynamic positioning real-time updating rate of the mobile station can be increased, the output delay of the positioning result of the mobile station can be reduced, the base station data is sampled and broadcast at low frequency, the requirements for the real-time performance and the reliability of a data communication link are reduced and the costs of the wireless communication equipment and the links are also reduced.

The invention discloses an array substrate, a display panel and a display device. A first type shift register unit and a second type shift register unit which are adjacent to each other serve as a subset, and the two shift register units in each subset are used for being connected with signals ends of the same clock signal wire through first leads, and the first leads are connected with corresponding clock signal wires through second leads. In this way, by adjusting the arranging sequence of the shift register units or reducing the clock signal wires, the overlapping between the leads and the clock signal wires is reduced, and the quantity of parasitic capacitances generated at the overlapping parts between the leads and the clock signal wires is further reduced, so that the delay of clock signals is reduced, and the output delay of the shift register units and the power consumption of a grid driving circuit are reduced.

A sensor unit includes: a measuring unit; a first buffer which saves measured data measured by the measuring unit when outputting the measured data outside; a second buffer; and an output mode switching unit which switches an output mode for outputting the measured data outside. The output mode includes a real-time mode (first mode) in which the first buffer is overwritten with the measured data if there is no free space in the first buffer, and a buffering mode (second mode) in which the measured data is written in the second buffer if there is no free space in the first buffer and in which the measured data written in the second buffer is transferred to the first buffer if a free space is generated in the first buffer.

The invention discloses a gate driving unit and a driving method thereof, a gate driving circuit and a displaying device. The gate driving unit comprises a shift register and a parallel output module,wherein the parallel output module is both connected with a control voltage signal input end and a pull-up node in the shift register; a signal output end of the parallel output module and a signal output end of the shift register are both connected with a signal output end of the gate driving unit; the control voltage signal input end is used for providing a first control voltage signal to the parallel output module when an environment temperature is less than a preset temperature; the parallel output module is used for outputting a signal identical to the signal output by the signal outputend of the shift register under control of electric potential of the pull-up node and the first control voltage signal. According to the technical scheme disclosed by the invention, the parallel output module is controlled to output the signal identical to the signal output by the signal output end of the shift register in a low-temperature environment, so that output delay of the gate driving circuit is reduced, and the charging efficiency is promoted.

The invention discloses a surgical instrument visual tracking method for laparoscopic minimally invasive surgery, which is based on a deep learning method and comprises the following steps: firstly, a surgical instrument area is detected and segmented from a surgical video stream and extracting local features on the premise of not performing preoperative marking on a surgical instrument; the detection and positioning efficiency and the feature extraction accuracy of the surgical instrument are greatly improved; meanwhile, image enhancement processing is carried out on the region of interest by utilizing an image filtering algorithm and region screening, so that the recognition precision of a tracking target point is improved; secondly, a 2D-3D conversion relation between the surgical instrument and the target area is calculated through modeling and mathematical expression so as to determine depth perception information of an end effector of the surgical instrument and the target area; and finally, a real-time tracking program of the target point is realized by using a mask algorithm. A data set is established through clinical medicine guidance and used for training and testing a surgical instrument detection model, automatic detection and tracking of the laparoscopic surgical instrument are achieved, and the model is more practical.

A GOA circuit comprising GOA units and a liquid crystal display are disclosed. The N-staged GOA units charge the Nth-staged horizontal scanning line in the display region, and comprise N-staged pull-up control circuits, N-staged pull-up circuits, N-staged transfer circuits, N-staged pull-down circuits, and N-staged pull-down holding circuits. The N-staged pull-up circuits turn on when the Nth-staged gate signal point is at a high voltage level, receive a first clock signal and charge the N-staged horizontal scanning lines when the first clock signal is at a high voltage level. The N-staged transfer circuits receive a second clock signal when the Nth-staged gate signal point is at the high voltage level and output N-staged transfer signals to control the operation of the (N+1)-staged GOA units. The disclosure may ensure the scanning lines in the GOA circuit to be better charged for facilitating normal operation for each point in the circuit.

A delay in packet output due to packet fragmentation processing is reduced. If input data is output upon being subjected to fragmentation processing, fragmented data, from among a plurality of fragmented data items fragmented based upon a set value in an MTU register, which belongs to a first fragmented packet containing information that is based upon all fragmented packets is stored in a fragment buffer. After all fragmented packets from a second fragmented packet onward to which other fragmented data items belong are output, the first fragmented packet is output.

A gate driving circuit and a display device are disclosed. The gate driving circuit includes a control module for pulling down the level of the second control node to be at the low level before the gate strobe signals are outputted and during the output period of the gate cutoff signals. In this way, the second pull-down control end of the low level maintaining module is pulled down to be at the low levels, and the low level maintaining module is in the off state. In this way, the electrical leakage of the low level maintaining module may be reduced so as to decrease the output delay of the gate signals and to enhance the efficiency of the circuit.

The invention discloses a rapid filtering method for conversion of multiple digital source sampling frequencies in a photoelectric transformer. According to the rapid filtering method, conversion of any fractional multiple sampling frequencies is achieved by cascading interpolation and extraction, and based on a Butterworth analog filter, the cut-off frequency of the analog filter is calculated according to the different digital source sampling frequencies so that the anti-aliasing and anti-image effect can be achieved; an equation parameter of a low pass filter in a domain z is obtained by sampling bilinear transformation according to the principle of the maximum smoothness of a pass band of the filter and a narrowest transitional zone of the filter; the FRR method is adopted for filtering and reverse design, and the output signal sequence of the maximum smoothness and zero-phase distortion is finally obtained. According to the rapid filtering method, in differential protection of the photoelectric transformer, lower-order rapid filtering is achieved so that the maximum output smoothness and the zero phase can be obtained. The rapid filtering method is simple, practical and beneficial for rapid protection, can reduce errors caused by aliasing of the frequencies, and achieves the uniformization of the sampling frequencies.

The invention provides a single event transient pulse resisting CMOS circuit which comprises a first buffer and a second buffer. The input end of the first buffer is connected with the input signal of the first buffer, and the output signal of the first buffer is connected with the data input end of a first transmission door. The input end of the second buffer is connected with the input signal of the second buffer, and the output signal of the second buffer is connected with the data input end of a second transmission door. The data output signal of the first transmission door is connected with the data output end of the second transmission door and the input end of a first phase inverter. The output signal of the first phase inverter is connected with the input end of a second phase inverter, the grid electrode of an NMOS tube in the first transmission door and the grid electrode of a PMOS tube in the second transmission door. The output signal of the second phase inverter is connected with the grid electrode of a PMOS tube in the first transmission door and the grid electrode of an NMOS tube in the second transmission door and is used as the output signal of the single event transient pulse resisting CMOS circuit. According to the single event transient pulse resisting CMOS circuit, the buffers with different pull-up/pull-down capacities are used for filtering two classes of single particle pulses, the corresponding signals are output by controlling the transmission doors, and the single event transient pulse resisting CMOS circuit has the advantages of having few MOS tubes, being strong in single event transient pulse resisting capacity and good in filtering effect and the like.

The invention provides an audio signal output method and device, a terminal, and a system. The method comprises the steps: enabling a first audio signal of a background music signal to be transmitted to a DSP (digital signal processor); receiving a third audio signal formed by the mixing of the first audio signal, returned by the DSP, with a second audio signal, wherein the second audio signal is an audio signal received from a microphone; and outputting the third audio signal. According to the invention, the method solves problems in related technologies that the audio output is large in time delay and the user experience is poor, thereby reducing the time delay of audio output, and improving the user experience.

The invention relates to a device and method for repeating data packet between the POS-PHY bus and the PCI bus, the device is a bridge transferring device, which includes following submodules: PCI bus interface model, PCI primary device control model, PCI slave device control model, transmission and receiving arbitrating model, PCI configuring register, PCI space register, data receiving model, data transmitting model, POS-PHY interface model; the PCI bus interface model is connected to the PCI bus, the POS-PHY interface model is connected to POS-PHY bus outer. The device and method complete the repeating of data packet between the POS-PHY bus and the PCI bus, it provides a method for transmitting data packet on the PCI bus with high efficiency, and the data packet is not easy to be lost.

A packet switch architecture that can switch optical packets at high throughputs without using any random access memory, without fragmenting variable length packets into fixed length fragments and reassembling them, and without converting the optical packets into electronic packets. Programmable delay lines are use which delay the output of each packet for a programmable amount which may be re-programmed while the packet is being delayed by the programmable delay line. Programmable delay line controllers manages the delays imposed by the programmable delay lines so as to have a look-ahead phase during which information about the packets is gathered and a shift phase during which the sequence of packets is shifted to match an output sequence.

The embodiment of the invention discloses a voice processing method and device, and electronic equipment. According to a specific embodiment, the method comprises the following steps: receiving a to-be-recognized voice block as a current voice block, wherein the voice block comprises a past frame, a current frame and a future frame; and based on the current voice block, executing the following voice recognition steps: performing voice recognition based on the current voice block to obtain a voice recognition result of the current frame and a voice recognition result of the future frame; determining whether a previous voice block of the current voice block exists; if so, updating a target recognition result by using the voice recognition result of the current frame of the current voice block; and outputting the voice recognition result of the future frame of the current voice block. According to the embodiment, the output delay of the voiced recognition results can be reduced.

The invention discloses a vehicle course angle detection method, device and equipment and a storage medium, and the method comprises the steps: obtaining a real object image of a target vehicle in a preset range of a vehicle, determining a whole vehicle detection frame and a vehicle body detection frame of the target vehicle according to the real object image, and employing a single image to locate the position of the target vehicle in the image, and obtaining the vehicle head position or the vehicle tail position of the target vehicle; based on the whole vehicle detection frame and the vehicle body detection frame, carrying out the perspective operation on the real object image to obtain a plane perspective view of the target vehicle, and carrying out the geometric operation on the plane perspective view to obtain a course angle of the target vehicle, so that a three-dimensional space problem in the detection process is converted into a two-dimensional plane problem, the operation complexity and algorithm output delay are effectively reduced, and the purposes of reducing the computing amount and improving the precision are achieved; meanwhile, the method can be suitable for various scenes.