44 results about "Random number table" patented technology

A method and apparatus for generating random numbers for use in electronic applications is disclosed. A given sequence of random binary numbers of a certain length can be decoded into several random numbers for a specific application. The upper range values of the random numbers to be decoded determine the number of bits required for the generation of the these random numbers. In the decoding process, the given random binary number divides a range value to generate a remainder and a quotient. The quotient becomes the new random binary number for the generation of other random numbers while the remainder is the generated random number. The process then repeats to generate other random numbers. At the end of the generation process, the last quotient determines the validity of the generated random numbers.

A cryptographic system (CS) is provided. The CS (500) is comprised of a data stream receiving means (DSRM), a ring generator (RG) and an encryptor. The DSRM (602) provides a data stream (DS). The RG (400) includes a computing (404-408), converting (404-408) and permutation (410) means. The computing means is configured to perform RNS arithmetic operations to express a random number in a random number sequence as RNS residue values (RNSRV). The converting means is configured to convert each RNSRV to a relatively prime number system so that each RNSRV includes at least one digit. The permutation means is configured to generate an arbitrary permutation ordering of output sequence numbers (OSNs) using a select combination of digits associated with each RNSRV. The arbitrary permutation ordering is determined using a cyclic structure. The encryptor is configured to generate a modified data stream by combining the OSNs and DS.

A method is provided for extending a sequence repetition period of a random number generator in systems based on the availability of random sequences. The method includes performing RNS arithmetic operations to express a random number in a sequence as RNS residue values. Each generated random number has a value between zero and n!−1. The method also includes converting each of the RNS residue values to a relatively prime base number system so that each of the RNS residue values includes at least one digit. The method further includes generating an arbitrary permutation ordering of output sequence numbers using a select combination of digits associated with each of the RNS residue values. The arbitrary permutation ordering is applied to a cyclic structure having n elements. Each of the n elements has an associated output sequence number.

The invention discloses an advertisement putting method and device. The advertisement putting method comprises the steps that: after an advertisement putting request is received, sources of advertisement materials are determined through a flow funnel strategy; when the sources of the advertisement materials are bidding advertisements, advertisement feature information of each bidding advertisementis obtained; according to the advertisement feature information of each bidding advertisement and the user feature information indicated by the advertisement putting request, the click rate prediction value of each bidding advertisement is calculated; according to the click rate prediction value of each bidding advertisement and the display resource corresponding to each bidding advertisement, the display probability of each bidding advertisement is calculated; according to the display probability of each bidding advertisement, a target advertisement is selected from the bidding advertisements through a random number table method and is put. According to the technical scheme of the invention, the advertisement resource waste which may be caused by the fact that advertisements which usersare not interested in are put is avoided, the types of the advertisements are enriched, and the singleness of the advertisements is avoided.

A cache may comprise a memory and control logic. The memory may be configured for storing data buffered by the cache. The control logic may be configured controlling accesses to the memory. The control logic may comprise a pseudo-noise generator and a trigger device. The pseudo-noise generator may be configured for generating a pseudo-random number representing, for a miss access requiring allocation, which of a plurality of possible addresses in the memory to use for the allocation. The trigger device may be configured for controlling a cycle of the pseudo-noise generator to output the pseudo-random number therefrom.

A cryptographic system (CS) is provided. The CS (500) is comprised of a data stream receiving means (DSRM), a ring generator (RG) and an encryptor. The DSRM (602) provides a data stream (DS). The RG (400) includes a computing (404-408), converting (404-408) and permutation (410) means. The computing means is configured to perform RNS arithmetic operations to express a random number in a random number sequence as RNS residue values (RNSRV). The converting means is configured to convert each RNSRV to a relatively prime number system so that each RNSRV includes at least one digit. The permutation means is configured to generate an arbitrary permutation ordering of output sequence numbers (OSNs) using a select combination of digits associated with each RNSRV. The arbitrary permutation ordering is determined using a cyclic structure. The encryptor is configured to generate a modified data stream by combining the OSNs and DS.

Encrypting a clear text by: providing a computer; using the computer to provide: a True Random Number table (TRN table); a Hyper-Key Identification table (Hyper-Key ID table); and a Key Identification position number (Key ID position number); using the Key ID position number to choose a Hyper-Key Identification (HKID) number; using the HKID to generate Hyper Keys; providing a clear text message to be encrypted; using a Hyper Key, Xor Hyper Encrypting the clear text file and the Hyper Key to produce a first level Crypt text file; using a second Hyper Key, Bit Scrambling the first level Crypt text file and the second Hyper Key to produce a second level Crypt text file; and using the second level Crypt text file, Null Bit Padding the second level Crypt text file to produce a third level Crypt text file.

The invention relates to an intelligent programmer which improves data safety of electronic product and efficiently prevents from being deciphered. The programmer comprises a setup module, a list-generating module, a program module, a program store module and program interface, wherein, the setup module and the list-generating module respectively are connected with the program module, the setup module is used for setting the list first address and list length of random-number table generated by the list-generating module, the list first address is the list first position which the random-number table burningly writes on the aim chip, the values of the list first address and list length are respectively the values of constant list first address and list length which are set by the burning-writing program and stored in the program memory module, list-generating module is used for generating the random-number table of list length set in the setup module, the program module is used for burningly writing the random-number table generated by list-generating module and the burningly written program stored in program memory module to the aim chip in nesting type. The invention also provides a shifting method of a programmer.

In an audio-information encoding apparatus, in order to encode an audio signal containing a white-noise component, an index iL indicating the energy level of the white-noise component and an index iR designating the start index of a random-number table are introduced into a code train. In an audio-information decoding apparatus (20), a white-noise generating unit (25) uses the indices iL and iR contained in the code train, thereby generating a white-noise signal Sw(t) on the time axis, which has the same level as the white noise, and an adder (26) adds the white-noise signal to an audio signal Sf(t) decoded on the time axis, outputting as an output audio signal So(t).

The invention discloses a preparation method of a novel sepsis animal model. On the basis of implementing experiments on SPF-level Balb / c mice which are 8 weeks and 25-30g in weight and which undergoadaptive breeding for 1 week, the method is characterized by comprising the following steps: 1, in an adaptive breeding and molding stage, enabling the mice to freely take food and water; in an environment that light / dark alternate illuminating is implemented by an interval of 12h and temperature and humidity are proper, marking 60 Balb / c mice conforming to a standard, half male and half female, wherein each mouse has a corresponding fixed and unique serial number; with the adoption of a random number table method, equally dividing the mice into two major groups, namely a female group and a male group, and further dividing each major groups into four sub-groups, namely A (n=6), B (n=8), C (n=8) and D (n=8). The obtained novel model is intervened by such drugs as cyclosporin A and the like,resulting in a low immune function of the animals (the mice), which conforms to a circumstance that people, who are low in immune function due to such reasons as surgeries, age and the like, suffer from sepsis, so that a natural occurrence and development process of the sepsis can be simulated better.

Disclosed is a random number verification method and apparatus capable of quickly detecting the fact that a random number generation device designed to generate substantially authentic random numbers has become unable to generate authentic random numbers due to a malfunction, wrongful manipulation or the like. When random numbers randomly generated as n kinds of values are verified, a random number verification method according to one aspect of the present invention comprises a random number acquisition step of selecting a number m of the values, a counting step of counting the number of ones occurring p times (0≦p<m) in the n kinds of values, a comparison step of comparing the number obtained in the counting step with a predetermined first threshold, and a determination step of, when it is found the number is greater than the first threshold as the result of the comparison step, determining that the random numbers have a problem.

The invention relates to the technical field of computers, in particular to a method and an apparatus for generating random numbers in a computer system. The method for generating the random numbers in the computer system comprises the steps of firstly dividing to-be-generated random numbers into a plurality of subsets when a first request is received, and when each subset comprises two random numbers, defining a sum of the two random numbers to be double an average number, and defining a quotient of the two random numbers to be a preset threshold; and then determining one or two random numbers comprised in each subset in sequence, thereby obtaining a specified number of random numbers. Therefore, the purpose of controlling the generated random numbers is achieved.

The invention provides an LED display screen and a manufacturing method thereof. The method comprises the following steps: preparing batch LED chips with the same or different specifications; carryingout logic-free grabbing on the LED chips through a random sampling method and arranging the grabbed LED chips in sequence; the LED chips arranged in sequence are packaged and assembled to form an LEDdisplay screen; wherein the LED chips in a certain adjacent area in the LED display screen are not all adjacent LED chips with the same specification, and the specification of the LED chips comprisesone of color and brightness. According to the method provided by the invention, the chips with single specification or multiple specifications are subjected to one or more times of non-logical grabbing and arrangement, and the brightness and color difference of the grabbed and arranged chips after subsequent packaging and screen assembling is avoided. Moreover, the method can be realized by nesting a random number table method in the operation of the existing equipment, the realization process is simple, the equipment or the manufacture procedure does not need to be changed or designed, the operation cost is low, and the realization is easy.

The invention discloses a machine table number determination method and device, a processing line, a storage medium and electronic equipment, and relates to the technical field of semiconductor manufacturing. The machine table number determination method comprises the following steps: generating a random number table based on working data of the machine tables in each station on a processing line;gradually increasing the number of machine tables in a target site on the processing line in a simulation mode until the difference between the processing time of the processing line after the machine tables are increased and the processing time of the processing line before the machine tables are increased, which is determined based on the random number table, is smaller than a threshold value;and determining the number of the machine tables added with the machines as the number of the machine tables of the target station. According to the invention, a proper station and machine table combination can be determined in a simulation mode.

A computing device provides a random number table. Formulas for calculating size differences between a first object and a second object are written to the random number table. The random number table is controlled to select random samples which are taken as an actual size of the first object and an actual size of the second object. According to a user's requirement, the random samples are selected many times. The computing device obtains an absolute value of size difference which is the most in the random number table. All actual maximum differences and all actual minimum differences corresponding to the obtained absolute value of size difference are obtained. The computing device selects a maximum value of the all actual maximum differences and a minimum value of the all actual minimum differences as a standard for manufacturing the first object and the second object.

A timing controller includes a plurality of image enhancement blocks, a plurality of dithering blocks and a random number generating block. The plurality of image enhancement blocks performs image quality enhancement operations for input image data. The plurality of dithering blocks performs random dithering operations for outputs of the plurality of image enhancement blocks based on a plurality of random number tables. The random number generating block generates the plurality of random number tables which is provided to the plurality of dithering blocks.

The invention discloses a preparation method of a gastrointestinal motility disorder animal model. SPF-grade 7-week rats are adopted, the rats with half males and half females are marked, and each rat corresponds to a fixed serial number; the rats are divided into 5 big groups equally by a random number table method, the first four groups are divided into three small big groups according to different observation time, 6 rats are in each small group, intervening measures with different duration are taken by 20 percent (w / v) L-Arg salt solution, and the experimental results are collected and analyzed; and the optimal preparation scheme of the gastrointestinal motility disorder animal model is finally obtained. The preparation method of the gastrointestinal motility disorder animal model has the advantages of simple preparation method, definite quality control index, long maintaining time, low preparation cost, appropriate disease characteristics and unique modeling mechanism.

A device naming system comprises a setting module, a control module, a computing module, an acquisition module and a naming module. The setting module is used for setting a random number table comprising a plurality of index values and corresponding word strings; the control module is used for enabling an electronic device to be in a searched state; the computing module is used for computing the shaking angle of the electronic device according to a coordinate value detected by a gravity inductor when the electronic device is shaken and needs to be renamed; the acquisition module is used for acquiring Unix time; the computing module is further used for computing a random number value according to a preset formula; the naming module is used for determining an index value the same as the random number value from the random number table, and updating the name of the electronic device by the utilization of the word string corresponding to the determined index value. The invention further provides a device naming method. By means of the device naming system and method, the name of the device can be changed automatically according to recognition of a preset gesture.

The invention discloses a method for establishing a random number table of digits behind a pi decimal point. The method comprises the following steps of establishing a storage structure of the digits(0, 1, 2, 3, 4, 5, 6, 7, 8, 9) behind the pi decimal point; based on the condition that pi decimal places are a group of infinite non-cycle integers, generating the random number table by randomly taking a certain section of numbers in the integers, and establishing application and password protection levels of the random number table in cryptology; constructing the digits behind the pi decimal point randomly according to a password, and decrypting a random password construction process and a cryptology application process by an algorithm; and constructing a program for performing implementation. The data of the digits behind the pi decimal point is retrieved in multiple modes, and meanwhile, the interval retrieval is provided; the interval law, between 30,000 digits and 100,000 digits, ofthe distribution of 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 of the digits behind the pi decimal point is subjected to statistics; the cracking difficulty of encryption randomness is increased; and encryption algorithms of different grades can adapt to different fields.

A certification pattern storage method according to the present invention comprises: (1) a first step of receiving, by a user terminal, an image including a random number table which is encoded into a one-time key generated on the basis of first information and sent by a server; (2) a second step of generating, by the user terminal, the one-time key on the basis of the first information and decoding the encoded image; (3) a third step of receiving, by the user terminal, characters arranged according to a predetermined pattern in the random number table; and (4) a fourth step of sending, by the user terminal, the pattern determined by means of the inputted characters to the server, and storing the pattern in the server.

The invention provides a random number defect detection method and device. The method comprises the steps of controlling a random number generator to generate a plurality of random numbers when a random number defect needs to be detected, and obtaining the plurality of random numbers, then, determining a target defect type to be detected and random number defect representation characteristics corresponding to the target defect type, analyzing the plurality of random numbers based on the target defect type to obtain data characteristics of the plurality of random numbers, and finally, when thedata characteristics of the plurality of random numbers are matched with the random number representation characteristics corresponding to the target defect type, determining that the random number defect in a target defect type exists in the current environment. Thus, whether the random number generated by the random number generator has the data defect corresponding to the target defect type ornot can be accurately detected, the accuracy of random number defect detection is improved, and therefore the communication safety can be improved.

The present invention relates to a pattern authentication method for preventing smudge and shoulder surfing attacks, the method comprising a pattern registration step and a pattern authentication step, wherein the pattern registration step comprises the steps of: by an input unit of a pattern authentication device, receiving a pattern from a user; by a matching unit, matching a code value corresponding to the pattern being received from the user and storing the code value in a storage unit; and by a key derivation ID (KDI) generator, generating a user key derivation ID (KDI) by matching the code value with a quantum random number table comprising quantum random numbers generated by a quantum random-number generator.

The invention discloses a method for researching a preventive effect of combined clostridium butyricum and bifidobacterium powder on NEC (neonatal necrotizing enterocolitis). The method comprises steps as follows: research objects are selected, and selected sick children are divided into an intervention group and a control group according to a random number table; clinical data of the two groups of sick children are collected by adopting an investigation list; the collected data are subjected to statistical processing, and the inspection level P is equal to 0.05. According to the embodiment of the invention, the NEC morbidity of the intervention group and the NEC morbidity of the control group are 6.25% and 13.27% respectively, the morbidity difference of the two groups does not have the statistical significance, the difference of mortality rates of the two groups does not have the statistical significance, but when the total number of people suffering from NEC and death is taken as the whole for statistical analysis again, the condition that the death risk or risk of the NECIIA-IIIB stage of the intervention group are lower than those of the control group can be found out.