31 results about "Grade Code" patented technology

The invention discloses a phase grade self-coding-based optical three-dimensional measurement method. In the traditional phase measurement technology, generally additional coding patterns need to be projected to realize three-dimensional profile measurement of an isolated object. The method comprises the following steps of: providing sinusoidal stripes, the digital projection of which has phase grade coding information; constructing a code sequence, the total length of which is equal to the projected stripe period sum, by using the differential value or the slope value of phase distribution as a coding channel and using each stripe period as a coding unit; constructing a code sub sequence by using a plurality of adjacent periods; searching the position of the code sub sequence in the total code sequence to determine the phase grade of the period so as to obtain absolute phase distribution of the object to be measured; and finally, reconstructing a three-dimensional profile of the object to be measured according to the phase height relationship. The method can complete three-dimensional information acquisition of the object without projecting the additional coding patterns, and is particularly suitable for quick three-dimensional profile measurement of the isolated object.

The invention discloses a deep code obfuscation method for Android system applications. The method uses graded code obfuscation. The graded code obfuscation includes first-grade name replacement obfuscation, second-grade command insertion obfuscation, third-grade structure process obfuscation, and fourth-grade command inversion obfuscation. For an application installation package developed and to be released, the method includes: extracting a DEX file, analyzing the file structure, a Dalvik instruction set and a program running process, determining an obfuscation scheme of corresponding grade or multiple combined grades to perform deep code obfuscation on the DEX file, generating a new DEX file, and re-packaging the file. The deep code obfuscation method according to the technical scheme has the advantages that the limitations of the traditional source-code-based code obfuscation scheme can be broken through, the DEX executable files are directly obfuscated in terms of element name, instruction and process structure, applications can be effectively protected from illegal cracking or inversion, safety of applications in the Android system is improved, and confidentiality of business software is guaranteed.

The invention discloses a grading method for an application software, which comprises the following steps: obtaining: obtaining a to-be-graded application software; unpacking and analyzing: decomposing the application software to obtain a decomposing result containing an executable file part and a data file part; grading guiding: generating a grading code related to the result according to the decomposing result; and packaging: re-packaging the decomposing result and the grading code to obtain an application software with a grading function and marking the application software as the re-packaged application software, wherein when the re-packaged application software is used by a user, the grading code is executed, so as to guide the user to grade the to-be-graded application software. According to the grading method and the system for the application software, an added grading guiding program is combined with the application software, so that the grading guiding program runs at a specific moment when the application is executed by the user on an intelligent terminal, so as to guide the user to a mobile application market for grading the application.

The invention discloses a double eccentric wheel type steel seal dialing device. The double eccentric wheel type steel seal dialing device comprises a steel seal seat, a steel grade wheel and an eccentric shaft which is axially arranged along the steel seal seat. The eccentric shaft is composed of a front mounting shaft section, a middle eccentric shaft section and a back mounting shaft section. The front mounting shaft section and the back mounting shaft section are fixedly connected to the steel seal seat, separately, and the steel grade wheel sleeves the middle eccentric shaft section and is rotatably matched with the same; an axial wedged groove is formed in the steel grade wheel, a wedged locking block is arranged at the axial wedged groove, and a positioning shaft which is axial to the steel seal seat is arranged through the wedged locking block; an elastic pressure sheet propping against the elastic sheet is arranged out of the wedged locking block; a mounting hole is formed in the steel seal seat along the central axis thereof, an eccentric shaft sleeve is arranged in the mounting hole, a steel seal seat shaft is arranged in the eccentric shaft sleeve in a matched manner. The device disclosed by the invention has the advantages that the printing adjusting range is relatively large, a dial wheel can quickly and efficiently change the grade, and the loosening and deviating problem of the steel grade can be effectively avoided; in an operating application, the device is quite convenient to adjust, and the steel grade coding depth uniformity and the printing and positioning accuracy are realized.

The invention discloses a method for generating notes of a soil spatial data graph. The method includes the first step of generating a structural table, a grading code table and a storage path table according to a database; the second step of establishing a grading code and typeface relational table V_GrTxt; the third step of carrying out note setting and edge buffering setting on a map layer according to the structural table, generating a table Vlay and selecting grading code fields needing counting to count grading codes; the fourth step of merging the grading code table with the table Vlay and the table V_GrTxt and generating a grading code table V2_Gr, wherein the grading code table V2_Gr is provided with a GrOff field determining whether notes are generated or not and a Curve field setting the arrangement direction in which the notes are generated; the fifth step of screening the grading codes in the table V2_Gr according to a statistic result and determining whether the grading codes generate the notes or not; the sixth step of merging distinguish results, generating a grading code table V4_Leg of the notes and generating a note layer according to the Curve field and the table V_GrTxt. The method achieves automatic receding and generation of the notes.

A power source grade recognition circuit comprises a voltage conversion unit, a data processing unit, a first power interface, a detection unit and a signal preprocessing unit, wherein the first power interface is used for receiving power signals and power grade coded signals, the detection unit is used for filtering out the power signals in the first power interface, the signal preprocessing unit is used for shaping waves of the power grade coded signals, and the data processing unit is used for recognizing the signal grades of the shaped power grade coded signals. The invention further provides a power source grade marking circuit and a power source grade power supply system. The power source grade recognition circuit, the power source grade marking circuit and the power source grade power supply system transmit power grade information to a terminal device through the power interface, the purpose that the terminal device automatically recognizes the received power signals and carries out switching between corresponding modes is achieved, and damage to terminal device caused when users mix up the terminal devices is avoided.

The invention mainly relates to a numerical-control machine tool feed-setting method. A feed setting method using graded code discs, which is applied to NC-plain compatible machine tools of multiple operation modes, and characterized by comprising the following steps of: inputting feed parameters (1-3) of a machine tool into a feed database (1-4) and inputting the feed database (1-4) into a special NC system (1-1) of the machine tool through a data interface (1-2); displaying the feed parameter table in matrix arrangement on the monitor in real time or indicating the feed parameter list at a notable position of the machine tool; distributing each type of feed parameters into a matrix table. The machine tool is provided with an operation panel with a plurality of graded code discs (1-6) for feed parameter selection, and all graded code discs are provided with scales each of which corresponds to a feed state or a feed value. A feed is selected after rotating a selected graded code disc (1-6), the feed state or feed value is input into the special NC system (1-1) of the machine tool through the data interface (1-2); after the special NC system of the machine tool selects the corresponding feed state or feed parameter from the feed database (1-4), and the machine tool carries out processing according to the selected feed mode and parameter.

A bar gauge by grading coding relates to the technical field of measuring instrument. According to the invention, the technical problem of high difficulty of present bar gauge identification is solved. Scale of the bar gauge provided by the invention is equally divided into a plurality of code segments. Each code segment is divided into a plurality of code words. Each code word is equally divided into D code element, A code element and B code element. The distances between centers of adjacent code elements are consistent. The D code element has a plurality of code bars, which are centrosymmetrically distributed to form a code segment counter. There is only one code bar at the center of the A code element and the B code element. The A code element and the B code element form a code word counter. The center line of the D code element is the start point of code words as well as the stop point of the front code word. There are a plurality of code bars in the D code element. Code segment counter values in the same code segment are consistent and convenient to identify. The bar gauge provided by the invention is characterized by few combinations of code elements and low bar code density. Wide-range levelling can be realized by using few combinations of code elements. Good conditions are created for long-distance measurement of barcode positioning, and measurement reliability is raised.

Method and apparatus for managing a parental level of an optical disc can allow a user to set a parental level of a data stream recorded and stored on a rewritable optical disc or write-once optical disc, and can record and manage the set parental level as navigation information such as for the optical discs. The method and apparatus allow the user to conveniently set or change the parental level of the data stream, refer to the parental level recorded and managed therefore, and carry out a parental locking operation such that children or teenagers cannot arbitrarily reproduce a data stream of an adult program. Further, a parental grade code, a supplemental parental grade code or if the parental code was generated using parental management information previously supplied by the user can be determined. Accordingly, an authorized user can determine whether the previous set grade code is changed illegally.

Embodiments of the present invention provide a decoding method and device, and a decoder. The method includes: receiving N LLRs corresponding to the signal to be decoded, dividing the K decoding bits into reliable bits and unreliable bits according to a priori LLR and / or a posteriori LLR, and generating M according to the N LLRs and preset rules There are 1 decoding paths, the next-level path for reliable bits is 1, and the next-level paths for unreliable bits are 2. According to the PM value of the M decoding paths, the target decoding paths of each level are screened out, and each target decoding path is obtained. When the length of the first decoding path reaches N, perform CRC on the K decoding bits in the first decoding path, if the CRC passes, the decoding is successful; otherwise Continue to perform CRC on the K decoding bits in the next decoding path whose length reaches N. If the result of performing CRC on all K decoding bits in the decoding path whose length reaches N is not passed, then decoding fail.