11 results about "Numeric Value" patented technology

An optical scanning apparatus includes light sources, an aperture having, and coupling lenses. Numbers of the light sources and the coupling lenses are equal to each other and the apparatus satisfies an inequality 12.7 <(D×β₀×m₀×xdpi)/(2×NA) <38.1 and an equation β₀=(β₊−β₋)/(n−1), wherein D represents a width of the slit of the aperture, β₀represents a beam open angle, mo represents a total lateral magnification ratio, dpi represents a number of dots per inch, NA represents a numerical aperture, β₊ represents a positive open angle, β₋ represents a negative open angle, and n represents the number. Further, an image forming apparatus using this optical scanning apparatus and an image forming method are provided.

The invention discloses an actual load measuring method of the ultra-high-rise steel and concrete combination structure. The actual load measuring method includes the following steps that a reasonable measurement manner is adopted for carrying out load bearing entity measurement on the full process of concrete frame core cylinder structure construction; by combining with an actual measurement result, a finite element analysis SAP 2000 is used for setting up a reasonable concrete frame core cylinder structure construction stage vertically stressed and deformation analysis model which is used for numerical analysis and calculation; entity measurement and analog computation are analyzed. According to the actual load measuring method of the ultra-high-rise steel and concrete combination structure, the method combining on-spot entity measurement and numerical analysis computing is adopted, the reasonable measurement manner is used for carrying out load bearing entity measurement on the full process of the concrete frame core cylinder structure construction, the finite element analysis SAP 2000 is used for setting up a reasonable concrete frame core cylinder structure construction stage vertical stressed and deformation analysis model which is used for numerical analysis and calculation; the actual measurement results are combined for carrying out comparison and analysis. In addition, the actual load measuring method is convenient to carry out, the measurement results are accurate and good application value is achieved.

The invention discloses a square root volume filtering method based on mixed information weighting consistency, belongs to a sensor information fusion technology, and relates to a distributed nonlinear state filtering problem. The filtering method comprises the following steps: firstly using a square root volume rule to obtain a prediction information vector and an information matrix square root factor of each node for the target state; then, based on the observation information and state prediction information of each node, calculating the corresponding local measurement information vector and the information matrix square root factor; finally obtaining consistency state prediction information, measurement information and a measurement normalization factor through the information interactive consistency iteration between neighbor nodes, and updating the estimated state of the target by weighted fusion. The filtering method effectively solves the problem of over-estimation of the nodestate under the condition of limited number of iterations, improves the consistency convergence rate and estimation precision of the state information, and improves the numerical stability of the filtering method.

Numeral values relating to depletion can be managed in real time on a component-by-component (unit-by-unit) basis. A value managing device is provided, and manages the current asset values of constituent elements by reading identification information from IC tags or the like attached to constituent elements (e.g., components, units, parts) constituting a game-playing machine and storing identification information (e.g., part IDs) for uniquely identifying the constituent elements. The value managing device includes: a storage section storing the dates of acquisition and acquisition prices of the constituent elements in association with the identification information; and a value computing section for computing the current assets of the constituent elements from the dates of acquisition and acquisition prices of the constituent elements corresponding to the identification information read from the IC tags or the like.

The invention discloses an L2P mapping table reconstruction method and a solid state disk, a plurality of data, continuous logic addresses and count values in each data block are stored in a plurality of 4K cells of a physical block according to a continuous programming sequence, and the L2P mapping table reconstruction method comprises the following steps: reading the last 4K cell of the physical block when power is on after abnormal power failure, obtaining a first last logic address and a first last count value stored in the first last logic address; calculating a first first physical address of the first data by using the array table; and establishing an L2P mapping table according to the corresponding relationship between the first first logic address and the first first physical address of the first data. According to the method, a count value is also stored during data storage, so that the count value and the logic address of the last data stored in the physical block can be obtained when the last 4K cell is read, and the address mapping relation of the first data can be obtained through the array table, so that the L2P mapping table is recovered, the reading frequency is reduced, the power-on table building time is saved, and the working efficiency is improved. The power consumption is reduced.

The invention is applicable to the technical field of computers, and provides a watermark adding method, device and equipment and a storage medium. The watermark adding method comprises the followingsteps: determining a check value of each digit according to a numerical value and a position value of each digit in a secret key; determining a three-digit character string set corresponding to each digit according to the numerical value, the position value and the check value of each digit; and replacing three-bit character strings of partial data in target data with three-bit character strings in the three-bit character string set to generate watermark-added data. According to the watermark adding method provided by the embodiment of the invention, the watermark information is used as a partof the data to be inserted into the data to be added with the watermark, the confidentiality is high, and the secret key can be quickly traced by utilizing the check value.

The embodiment of the invention provides a hardware key reconstruction method and device for a memory. When the memory reaches a preset state, the CPU reads numerical values of a plurality of fixed storage units in the memory based on preset first position information to obtain a first material sequence; and the CPU obtains stored second position information from the block chain network, reads a corresponding numerical value in the first material sequence based on the second position information to obtain a second sequence, performs error correction on the second sequence by using an error correction coding algorithm, recovers a second standard sequence, and reconstructs a hardware key of the memory based on the second standard sequence. Wherein the second position information comprises the position information of a sub-sequence, which is the same as the second standard sequence, in a material sequence in the last secret key reconstruction; the subsequence is a stable numerical value sequence obtained through selection based on the flipping probability of a plurality of numerical values in the material sequence, and the flipping probability is updated through information in last secret key reconstruction.

The invention discloses a decoding method and a decoding device. The decoding method comprises the following steps: dividing a deinterleaved code symbol into sub-code symbols of a first preset number of groups; according to the one-to-one correspondence relationship, respectively inputting the sub-encoders of each divided group into each pre-configured decoder; after all decoder outputs are combined according to the sequence of the input decoders, performing cyclic redundancy check on bit streams obtained through combination. According to the embodiment of the invention, the decoding speed is improved.

The invention discloses a method and device for determining relevancy of fields in a database table, and relates to the technical field of computers. A specific embodiment of the method comprises the following steps: for any two to-be-analyzed fields in a database table, judging a field type to which the field belongs according to an element of each field, wherein the field type comprises a numeric field and a classification field, and elements in the classification field belong to at least two element categories; when one of the two fields is a numeric field and the other field is a classified field, determining elements belonging to the same element category in the classified field, and forming an analysis group by the elements in the numeric field corresponding to the element; and determining an inter-group variance and an intra-group variance for each analysis group, and obtaining a correlation index of the two fields according to the inter-group variance and the intra-group variance. According to the embodiment, the relevancy of the numeric field and the classification field in any database table can be quantitatively calculated, and unified analysis of the relevancy of different types of fields can be achieved.