67results about How to "Reduce pause" patented technology

The invention relates to a high performance DMA on an embedded type processor chip. The high performance DMA comprises a data buffer used for caching the data read from an on-chip memory, the data sent to a bus interface unit, the data received from the bus interface unit, and the data written into the on-chip memory; a data big-endian and little-endian convertor; a DMA controller used for initializing a state register, a control register, an initial address register and a data size register; a DMA transmission address generating logic module used for automatically calculating the transmission address of the next data on an on-chip external memory and generating chip selection and read and write signals of the on-chip memory according to the on-chip address, and simultaneously updating a data size counter till the counter changes to zero; and a bus transmission transmitter and receiver. The high performance DMA has the advantages that the development difficulty is low, the cost of the hardware is low, the transplantation is convenient, the expansibility is flexible, the data transmission speed is high, and the performance of the processor is greatly enhanced.

The invention provides a method for renaming a status register in a superscalar processor with a pipeline structure, wherein the status register is a register composed of a plurality of flag bits selected from all flag bits of a flag register. The method comprises determining whether a microcode will read the status register when the microcode coded by a command reaches a register renaming module of the processor; if determining that the microcode will read the status register, allocating a nearest mapping physical register for the status register; otherwise, not allocating the physical register for the status register; determining whether the microcode will be written to the status register; if determining that the microcode will be written into the status register, allocating a new physical register with empty status to the status register; and otherwise, not allocating the physical register for the status register.

The invention discloses a normal temperature high pressure continuous extraction method of active ingredients of natural products, including five steps of crushing, soaking, ultra-fine smashing, high pressure extraction and solid-liquid separation, wherein the material liquid after the ultra-fine smashing is continuously pumped into a high pressure extractor by an underflow pump in the high pressure extraction, the material liquid achieves the pressure of 1 to 90MPa via a high pressure pump, the material liquid is impacted on a collision ring in the high pressure extractor by an annular working gap in the high pressure extractor being subject to the high pressure, and the cells of the natural products in the material liquid is crushed; the five steps are carried out at normal temperature, the normal temperature refers to the temperature ranged from 10 to 45 DEG C, the better temperature ranges from 15 to 40 DEG C, and the best temperature ranges from 15 to 30 DEG C. The invention also discloses a device to realize the method.

This invention relates to memory management in a virtual machine or operating system and in particular to object creation and garbage collection. There is described a method and system of managing memory in a multi-threaded processing environment such as a java virtual machine comprising: creating an object in a thread heap; associating a status with the object and setting the status as local; using write barriers to change the status to global if the object is assigned to a static variable or if the object is assigned to a field in any other object; and performing garbage collection by deleting from the thread heap, when memory space in the thread heap is required, one or more local objects which can not be traced to the thread stack.

The invention provides a method for improving the audio playing quality, an audio data acquisition method and an audio data acquisition system, wherein the method for improving the audio playing quality comprises the following steps: according to the preset time, acquiring and caching the audio data to be played of the guest operation system, wherein the quantity of the acquired audio data is larger than the quantity demanded of the audio data of the physical audio card; and according to the audio playing parameters of the physical audio card, sending the cached audio data to the physical audio card to play. The invention can improve the sound playing performance of the guest operation system, and improve the user experience.

A data processor for improving the storage instruction execution efficiency comprises a register file, an instruction decoding unit, an instruction scheduling unit, a storage instruction queue and instruction execution units, wherein the instruction scheduling unit is used for completing feedforward of the address operand of a stored instruction and feedforward of all operands of other instructions according to related information of instruction operands, and transmitting the instructions completed by operand feedforward to the corresponding instruction execution unit; the storage instruction queue is used for receiving storage instructions from the instruction decoding unit, storing write-back data and related information of the stored instruction, monitoring outlet data of all the execution units and completing feedforward of the write-back data of the stored instruction according to the related information of the stored instruction data operand; and the instruction execution units are used for receiving instructions transmitted by the instruction scheduling unit and are divided into different execution units according to the instruction types. The data processor provided by the invention effectively reduces breakdown of assembly lines due to genuine correlation of data write after read, improves the execution efficiency of storage instructions and has promoted performance.

The invention provides a method and a device for displaying a list on a mobile terminal, and the method and the device can be used for reducing the stopping phenomenon in the displaying process when a user operates a scroll bar of a human-computer interface of the mobile terminal. The method comprises the following steps of: in the rolling process of the list, outputting texts positioned in the display range in the list on the human-computer interface, wherein the list is from a mobile internet; and when the list stops rolling, outputting preformatted files positioned in the current display range in the list on the human-computer interface.

The invention discloses a memory allocation and garbage collection method based on life-period prediction. The method comprises the following steps that objects with long life-periods are directly allocated to an older area by predicting life-period lengths of the objects to be allocated, and the copied number from a young area to the older area is reduced to lower the execution time of garbage collection; in the young area, the young area is further effectively divided to achieve a non-pause mode of simultaneously allocating the objects and collecting garbage so as to reduce the pause times in a procedure operation process; a lazy-buddy mode is adopted in the older area to carry out memory allocation, so that the memory allocation speed is ensured, and a Mark-sweep method is combined to collect the garbage, so that copy operations of large objects is avoided, and the number of memory fragments is controlled.

The invention discloses an environment-friendly stable floating device for marine environment monitoring. The device comprises a floating plate, a motor, a third bevel gear, connecting parts and solarpanels, wherein a fixing frame is welded to the upper portion of the floating plate, the motor is arranged in the floating plate, and a second rotating shaft penetrates into a second bevel gear; andsupporting rods are installed on the outer wall of the second rotating shaft, the left end and the right end of the second rotating shaft penetrate through the floating plate to be connected with impellers, ribbons are arranged on the periphery of the bottom of a fixing plate, reflectors are connected to the ribbons, the connecting parts are connected to the fixing plate through bolts, and secondneodymium magnets are arranged on the inner walls of the connecting parts. According to the environment-friendly stable floating device for marine environment monitoring, smashing blades are arrangedand can rotate along with a third rotating shaft so that algae can be smashed in time, the phenomenon that the device is wound by the algae is effectively avoided, and the device can normally walk andmove.

A bionic robot and a spine apparatus thereof. Magnetorheological fluids are filled in the cavity, the first tube and the second tube to actuate the first end of the piston rod, so that the piston rod is actuated to move along the axial direction of the cavity. The excitation coil is wound around the first tube. When the controller provides a variable current for the excitation coil, the excitation coil produces a variable magnetic field at the first tube, thereby causing a magnetorheological effect that the magnetorheological fluid is in low liquidity and high viscosity. Then, the transmission speed of the piston rod is changed, which is presented as a damping characteristic, reducing the pause and transition in the spine apparatus, and improving the flexibility and the bionic performance of the robot.

The invention provides an inertia ratio on-line identifying system and method. The inertia ratio on-line identifying system comprises a sampling unit, a first computing unit and a second computing unit, wherein the sampling unit is used for collecting rotation speeds and corresponding current of a plurality of servo motors in fixed sampling time when the servo motors are started or reversed; the first computing unit is used for calculating electromagnetic torque according to the current, and subjecting the collected rotation speeds and the calculated electromagnetic torque to iterative computation to obtain an identification vector; the second computing unit is used for calculating an inertia ratio according to the identification vector. According to the inertia ratio on-line identifying system and method, iterative computation of the identification vector from the sampled rotation speeds is performed, and the inertia ratio is calculated according to the identification vector, so that inertia ratio parameters of the servo motors can be obtained without off-line operation, and user's operation is simplified.

Control logic monitors use of a particular functional element (e.g., a divider, or multiplier or the like) in a programmable processor, and the control logic powers the unit down when it has not been used for a specified time period. A counter (local or central) and time threshold determine when the period has elapsed without use of the element. The control logic also monitors how soon the functional unit is woken up again, to determine if power control is causing thrashing. Upon the determination of such thrashing, the unit automatically adjusts its threshold period, to minimize thrashing. In an example of the logic, when it determines that it is being too conservative, it lowers the threshold. Mode bits may allow the programmer to override the power-down logic to either keep the logic always powered-up, or always powered-down.

The invention discloses a material receiving device for a spreading machine, which comprises a hopper for receiving a spreading material, a baffle plate (2) matched with the hopper and a power part for driving the baffle plate (2), wherein the baffle plate (2) comprises a fixed baffle plate (21) and a movable baffle plate (22); the fixed baffle plate (21) is fixedly connected with a machine body; and the rear part of the movable baffle plate (22) is hinged to the fixed baffle plate (21), while the front part is in sliding connection with the power part, so that the spreading material on the movable baffle plate (22) is gathered to the inside and backside of the hopper. The material receiving device has good adaptability, can effectively reduce material spills of a small spreading machine, and simultaneously reduces phenomenon of clamping stagnation during material transportation. The invention also provides a spreading machine comprising the material receiving device. The stability of the spreading machine is obviously improved, and simultaneously the quality of roads spread by using the spreading machine also can be improved.

The invention discloses a bill query method, an operation device and a computer readable storage medium. The bill query method comprises the following steps of: ranking time points of all the pieces of bill information by taking a preset time unit as basis, so as to obtain a bill time sequence interface, and displaying the bill time sequence interface; when a zooming operation is received, determining a target time point on the bill time sequence interface according to an operation area of the zooming operation; when the operation category of the zooming operation is an amplification operation, determining an inferior time unit of the preset time unit as a basic unit of the target time point; when the operation category of the zooming operation is a shrinkage operation, determining a superior time unit of the preset time unit as the basic unit of the target time point; and carrying out classified statistic on all the pieces of bill information mapped by the target time point accordingto a preset bill type on the basis of the basic unit, and displaying the bill information. According to the method, the operation device and the computer readable storage medium, the bill function query process is simplified, bills at different time points can be compared conveniently and then the using experience of the users is enhanced.

The invention provides a convolution operation method and a convolution operation device. The convolution operation method is used for executing convolution operation on an input feature map to generate a corresponding output feature map, and comprises the steps of dividing each input data block in a plurality of input data blocks into a plurality of non-overlapping areas, and wherein an overlapping area exists between any two adjacent input data blocks; storing a plurality of non-overlapping regions of each input data block into corresponding non-overlapping storage spaces in a cache; generating each input data block according to an area which is stored in the non-overlapped storage space and corresponds to the input data block; and performing convolution operation on the plurality of generated input data blocks to generate the output feature map.

The invention relates to a message scheduling method based on a shift register. The message scheduling method is characterized by comprising the following steps: step S1, determining specific message fields that need to be compared according to a message processing requirement; step S2, determining the number L of historical messages that need to be compared according to a message processing pipeline structure; step S3, determining the series M of the shift register according to the specific fields and storage resources; step S4, according to an order-preserving requirement in pipeline processing, dividing the messages without the order-preserving requirement between each other into N classes, wherein each class of messages correspondingly realize one shift register to store messages to be scheduled; placing the messages with the order-preserving requirement in a same shift register; and executing a specific field comparison function through an additional combinatorial logic, and finishing first-level scheduling; and step 5, performing second-level scheduling in a first-level scheduling result, and selecting one message and sending the message to a message processing pipeline.

The invention provides a mapping method and system suitable for large-scale virtual reality redirection walking. The mapping method comprises the following steps of acquiring virtual roaming scene data, obtaining a roaming path according to the obtained virtual roaming scene data, decomposing a roaming path in the virtual scene into a plurality of segments, sequentially mapping the segmented virtual paths into Bezier curves by taking minimization of internal energy as a target, according to a preset smooth constraint condition, connecting adjacent curves into a continuous smooth curve, and obtaining a walking path in an actual space. According to the method, the user can be effectively guided to be far away from the boundary of the tracking area, the number of times of resetting the user by the system is greatly reduced, the navigation speed and smoothness are effectively improved, the pause feeling and perception distortion are reduced, and the immersion feeling of the user is enhanced.

The invention discloses a production line of an energy-saving profile and a production method comprising the production line, the energy-saving profile comprises a heat insulation strip and two aluminum profiles, the production line comprises an aluminum profile supply device which conveys the aluminum profiles in the length direction of the aluminum profiles and comprises a supporting mechanism and a power mechanism driving the aluminum profiles to move horizontally, the side, provided with the heat insulation strip, of the aluminum profile faces upwards. The heat insulation strip supply device is located on one side or two sides of the aluminum profile supply device and comprises a conveying mechanism, the conveying direction of the conveying mechanism is perpendicular to the length direction of the aluminum profiles, the heat insulation strip supply device further comprises a transferring mechanism, the transferring mechanism comprises a mechanical arm, and the mechanical arm places heat insulation strips on the aluminum profiles; and the compounding device is arranged on the discharging side of the aluminum profile supply device and comprises a compounding mechanism, and the compounding mechanism comprises an upper compounding roller and a lower compounding roller. According to the production line and the production method of the energy-saving sectional material, the production efficiency can be improved.