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99results about How to "Avoid endless loop" patented technology

Optical proximity correction method

An optical proximity correction method includes the following steps: acquiring a current correction mask plate figure subjected to at least one time of optical proximity correction, and performing optical simulation on the current correction mask plate figure to acquire a simulation figure; comparing the simulation figure and a target figure to obtain an error of multiple border positions; when the error of the border positions is greater than a preset value and the distance from a to-be-corrected edge of the current correction mask plate figure to an adjacent mask plate figure is greater than the minimum design size of a mask plate, correcting the to-be-corrected edge of the current correction mask plate figure; when the error of the border positions is greater than a preset value and the distance from a to-be-corrected edge of the current correction mask plate figure to an adjacent mask plate figure is equal to the minimum design size of the mask plate, moving outwards an adjacent edge of the to-be-corrected edge of the current correction mask plate figure; and repeating the procedures until the error of the border positions is within the preset value. The method disclosed by the embodiment of the invention improves the efficiency of optical proximity correction.
Owner:SEMICON MFG INT (SHANGHAI) CORP

Verification method for branch instructions and branch prediction functions in speculation execution processor

ActiveCN107688468AIncrease profitSolve the problem that the access operation modifies the random instructionConcurrent instruction executionProduction lineSpeculative execution
The invention provides a verification method for branch instructions and branch prediction functions in a speculation execution processor. The method includes the steps: S1 initializing drive and monitoring information; S2 judging whether the processor launches instruction fetching applications or not, executing S3 if the processor launches the instruction fetching applications, and executing S2 if not; S3 judging whether instruction fetching production line signals are effectively emptied or not, terminating operation if the signals are effectively emptied, returning the S2, and executing S4if not; S4 judging whether the instruction fetching production line signals are effectively paused or not, executing S4 if the signals are effectively paused, and executing S5 if not; S5 simulating instruction fetching cache logic of the processor, driving acquired random instructions on an instruction fetching logic interface of the processor, eliminating coupling relationships among instructionsand program counters, and setting corresponding instruction fetching signals into an effective state; S6 packaging and transmitting instruction information when instruction fetching signals are effective. According to the method, the branch instructions and the branch prediction functions of the speculation execution processor are sufficiently verified, and the utilization ratio and the testing efficiency of the random instructions are greatly improved.
Owner:北京国睿中数科技股份有限公司 +1

User behavior analysis method under LINUX system

InactiveCN103617294ADoes not affect any operationsRealize multi-thread synchronous processingError detection/correctionSpecial data processing applicationsBehavioral analyticsData operations
The invention discloses a user behavior analysis method under a LINUX system. The user behavior analysis method comprises the steps of (01) automatically triggering a LINUX scheduled task in a timed mode, forming new data in a previous preset time period, and storing the new data into a database; (02) judging whether user behaviors in the current time period are processed or not, if the user behaviors are processed, directly exiting the user behavior analysis, and if the user behaviors are not processed, reading user behavior logs in the previous preset time period; (03) filing and combining the behavior logs obtained in the step (02) to form new data, and executing the operation of updating the data; (04) judging whether the execution of the operation of updating the data succeeds or not, and if the execution of the operation of updating the data succeeds, ending the user behavior analysis; if the execution of the operation of updating the data does not succeed, recording the cause of the failure, and judging whether the user behavior analysis can be carried out again or not. Compared with the prior art, the multi-thread synchronization processing is achieved, the response speed is high, and reliability is high.
Owner:JIANGSU MINGTONG TECH

Method and device for randomly generating examination paper

The invention discloses a method for randomly generating examination paper. The method includes steps of S1, acquiring examination question information inputted by users; S2, judging whether examination questions in examination question banks are matched with the examination question information or not, executing a step S4 if the examination questions are matched with the examination question information, or executing a step S3 if the examination questions are not matched with the examination question information; S3, modifying the examination question information and returning to the step S2; S4, randomly extracting the examination questions from the examination question banks according to the examination question information and generating the examination paper according to the extracted examination questions. The method and the device have the advantages that the examination questions in the examination question banks are compared to the examination question information inputted by the users, whether the paper can be successfully constructed or not can be quickly judged in a local similar backtracking mode, accordingly, the quality of random algorithms can be guaranteed, large quantities of useless operation and infinite loops can be prevented before paper constructing failures, the paper constructing time can be saved, the paper constructing efficiency and the quality of the examination paper can be improved, and the paper constructing success rate can be increased.
Owner:INSPUR BEIJING ELECTRONICS INFORMATION IND

Oscilloscope automatic calibration method based on gain judgment

The invention discloses an oscilloscope automatic calibration method based on gain judgment. The oscilloscope automatic calibration method comprises the steps of: calculating a theoretical gain control word of a digitally controlled attenuator corresponding to each amplitude gear of an oscilloscope at first; reading a digitally controlled attenuator gain control word corresponding to a current amplitude gear from existing calibration data before automatic calibration of each amplitude gear; if the digitally controlled attenuator gain control word is within an error range of the theoretical gain control word, executing automatic calibration of the corresponding amplitude gear, otherwise, jumping over the amplitude gear; and outputting automatic calibration information to a user so as to prompt the user after calibration of all the amplitude gears is completed. The oscilloscope automatic calibration method based on gain judgment avoids the overtime waiting time in the traditional automatic calibration process when the gain is incorrect through carrying out gain judgment in advance, can effectively avoid the endless loop caused by the incorrect gain, shortens the automatic calibration time of the oscilloscope when the gain is incorrect, and improves the automatic calibration efficiency and user experience of the oscilloscope.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

Sheet metal paint spray booth of automobile spare parts

The invention discloses a sheet metal paint spray booth of automobile spare parts. The sheet metal paint spray booth of the automobile spare parts comprises a paint spray booth body, wherein a filtering cotton bearing bracket is connected to the upper end of the left side of the paint spray booth body; an air inlet chamber is arranged at the upper end of a wallboard; axial flow fans are arranged at two sides of the lower end of the air inlet chamber; a filtering frame is connected to the middle part of the paint spray booth body; mid-effect filtering cotton is connected to the filtering frame; lamps are connected to two sides of the lower end of the filtering frame; a water tank of which the lower end is connected with a water curtain is arranged at the lower end of the right side of the paint spray booth body; a foundation is connected to the bottom end of the paint spray booth body; settling treating water is at the upper end of the foundation, and a paint molecule filtering net is connected to the upper end of the settling treating water; an air exhaust pipeline is connected to the right end of the paint spray booth body; an air outlet which is connected with an exhaust gas purifying device is connected to the right end of the air exhaust pipeline. The sheet metal paint spray booth of the automobile spare parts meets the paint spraying requirement of large spare parts; the settling treating water is at the lower end of the foundation, so that water mist can be prevented from being directly sprayed to various machines in the paint spray booth, and meanwhile, the requirement of paint mist treatment can be met.
Owner:ZHENGZHOU YOUAI NETWORK TECH CO LTD

Movable lateral sliding type uncovering garbage can based on microwave induction technology

The invention provides a movable lateral sliding type uncovering garbage can based on microwave induction technology. The movable lateral sliding type uncovering garbage can comprises a sliding cover, a can body and a base plate with four wheels. The can body is installed on the base plate with the four wheels. The sliding cover is installed on the can body. The sliding cover comprises two layers of fixed supports and a slidable cover face. The slidable cover face is clamped between the two layers of fixed supports. A microwave positioning device and an electromagnetic mechanical control device are installed on the sliding cover. A microprocessor, a power device and a movable device are installed inside the base plate with the four wheels. A radio frequency identification device, a Bluetooth device and an intelligent reminding device are installed inside the can body. The microwave positioning device, the electromagnetic mechanical control device, the power device, the movable device, the radio frequency identification device, the Bluetooth device and the intelligent reminding device are connected with the microprocessor. According to the garbage can, no manual uncovering is needed, so that the garbage can is sanitary and clean; a user does not need to be reminded to open the cover, so that the intelligent degree is high, the large-range deviation can be automatically adjusted, and use is more free.
Owner:WUHAN UNIV

Computer power source

The invention provides a computer power source which comprises a shell, a circuit board, a first thermal conductive plate, a first fan and a first air outlet. The shell comprises a bottom plate, the circuit board is arranged on the bottom plate, and the first thermal conductive plate is perpendicular to the bottom plate. The circuit board comprises a first side and a second side opposite to each other, and the first thermal conductive plate comprises a first horizontal portion and a first inclined portion which are connected with each other. The included angle between the first inclined portion and the first horizontal portion is an obtuse angle, the first horizontal portion makes contact with the first side of the circuit board, the first inclined portion comprises a first suspended end, and the first suspended end is adjacent to the second side of the circuit board. The air inlet position of the first fan is opposite to the first inclined portion, a first air outlet is perpendicular to the first fan, and the first air outlet is adjacent to the first side of the circuit board. By means of the structure, through the guide action of the inclined portion of a heat dissipation system of the computer power source, hot air in the shell is discharged out of the air outlet in the same direction, hot air circulation is avoided, and the heat dissipation effect is improved.
Owner:XIJING UNIV
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