92results about How to "Reduce code length" patented technology

The invention discloses a cascade hydropower station group optimized dispatching method based on an improved quantum-behaved particle swarm algorithm. The problems that local optimum happens to the quantum-behaved particle swarm algorithm at the later iteration period due to premature convergence for the reason that population diversity is decreased, and an obtained hydropower station group dispatching scheme is not the optimal scheme are mainly solved. The hydropower station group optimized dispatching method based on the improved quantum-behaved particle swarm algorithm is characterized by comprising the steps that first, power stations participating in calculation are selected, and the corresponding constraint condition of each power station is set; then, a two-dimensional real number matrix is used for encoding individuals; afterwards, a chaotic initialization population is used for improving the quality of an initial population, the fitness of each particle is calculated through a penalty function method, the individual extreme value and the global extreme value are updated, an update strategy is weighed, the optimum center location of the population is calculated, neighborhood mutation search is conducted on the global optimum individual, the positions of all the individuals in the population are updated according to a formula, and whether a stopping criterion is met or not is judged. The hydropower station group optimized dispatching method based on the improved quantum-behaved particle swarm algorithm is easy to operate, small in number of control parameters, high in convergence rate, high in computation speed, high in robustness, reasonable and effective in result, and applicable to optimized dispatching of cascade hydropower station groups and optimal allocation of water resources.

The invention discloses a multi-user network coding communication method with a high speed parallel encoding and decoding structure, which comprises the following steps: in a wireless relay network, multiple accessed user information is integrally interweaved by a relay node, serial / parallel conversion is carried out on the interweaved sequence, multiple groups of converted parallel data are input to a high speed parallel encoder to be encoded, and finally encoded data is broadcasted, thus realizing network encoding. A base station carries out teration decoding by means of a combined network-channel decoder according to original data broadcasted by users and data obtained by network encoding and channel encoding and forwarded by the relay node to obtain the original information of the users. The decoder of the base station comprises two parallel decoder groups, i.e. a user decoder group and a relay decoder group; iteration decoding is realized through transmitting soft information between two parallel decoder groups, thus not only recovering the original information of all accessed users but also improving decoding reliability and reducing decoding time delay. By adopting the method, the relay uplink transmission efficiency and the quality of transmission signal are improved.

This image compression applies a lossless compression algorithm and a lossy compression algorithm to code the differential value of the adjacent pixels. If lossy algorithm is selected, it codes the differential value of the present pixel and the reconstructed previous pixel. In quantizing the differential value of adjacent pixel components, a variable range of interval of value is predetermined with smaller interval range in values closer to “0” and larger interval range farer from “0”. The region with less mean variance, less quantization error will be allowed and the region with larger mean variance, more quantization error is allowed

A motion vector encoding apparatus includes a detection unit for detecting motion vectors of respective blocks of a predetermined size and a range of the motion vectors; a first storage unit for storing therein the detected motion vectors; and a generation unit for generating motion vector predictors from the motion vectors outputted from the first storage unit. The apparatus also includes a calculation unit for calculating an average value of differential vectors between the motion vectors outputted from the first storage unit and the motion vector predictors. Moreover, the apparatus includes a determination unit for determining a parameter representing a motion vector encodable range based on the average value of the differential vectors calculated by the calculation unit; and an encoding unit for encoding the motion vectors based on the differential vectors and a parameter representing an encodable range outputted from the determination unit.

The invention belongs to the technical field of the computer-aided layout technology, and relates to an irregular layout method based on a real-coded quantum evolutionary algorithm. The irregular layout method comprises the following steps: S1: utilizing a real-coded quantum probability amplitude to carry out uniform coding on a layout number sequence and a rotation angle sequence; S2: carrying out system initialization; S3: calculating the fitness of a population individual, and storing an optimal individual; S4: updating a quantum population; S5: carrying out quantum observation; S6: arranging a print into a mother board, carrying out individual fitness evaluation again, and updating the optimal individual; and S7: judging a termination condition. Since the quantum evolutionary algorithm is applied for solving an irregular layout problem, the irregular layout method has the advantages that layout time can be effectively shortened, the search precision of layout is improved and the use ratio of raw materials is improved, and the irregular layout method can be used for the layout in production and processing including glass cutting, clothes and leather cutting and the like.

The invention relates to a rapid geographical position search locating system and a method, and a systematic method for sending and decoding position locating codes. By adopting zooming locating, the method can code any area to be located and establish a complete set of code table. Compared with traditional position expression ways, zooming locating coding can have a shorter code length, and each coded bit can independently indicate one area range, thus being more convenient for memory and sharing of users, and also being more convenient for the input and processing of a computer. The system includes a receiver, a processor, a storage module, a map module, an output device and other parts.

An instruction coding method and an instruction coding system comprise: an accessing operation instruction and a calculating operation instruction which are based on long immediate values are compressed to 32-bit length to be taken as a first instruction; the accessing operation instruction that is not based on the long immediate values is compressed to 16-bit length to be taken as a second instruction; the calculating operation instruction which is not based on the long immediate values is compressed to 24-bit length to be taken as a third instruction; according to the instruction coding method and the system thereof, a program control instruction which is based on the long immediate values can also be compressed to the 32-bit length to be taken as the first instruction; the program control instruction which is not based on the long immediate values is compressed to the 16-bit length to be taken as the second instruction. A digital signal processor of the invention comprises the instruction coding system. As three instruction lengths, namely, 16-bit length, 24-bit length and 32-bit length, are adopted to carry out variable-length instruction coding, a quite high code compression ratio is obtained and the length of codes is obviously reduced.

The invention according to one embodiment is a method of distributing information in an RFID tag code that allows a decrease in the tag code length and, at the same time, retains all the information required by longer hierarchical code specifications, such as the ePC code and G-tag code specifications. In another embodiment, the invention is a method of mapping information from a shorter tag code to a longer computer searchable hierarchical code with full data compatibility of the tag code data with the hierarchical code fields. In a further embodiment, the invention is a method of mapping a hierarchical code to a shorter tag code without loss of any information. Blocks in the domain space are sold to encourage judicious use of the space and to avoid wasting the space. Although it is desirable for a manufacturer to purchase domain space blocks that are contiguous in the domain space, the system disclosed is sufficiently flexible to accommodate manufactures of various sizes, as well as manufacturers whose needs change over time.

The invention relates to an intelligent garment GPS data compression method, which comprises the following steps: (1) preprocessing standard GPS data to remove redundant information and reserve data useful for an intelligent garment such as time and longitude and latitude; and (2) performing the shift Hoffman data compression of the GPS data from which redundant information is removed. In the invention, before being compressed, the data is preprocessed to remove the redundant information and only reserve the data useful for the intelligent garment, so the coding length is reduced considerably; a shift Hoffman method is used for compressing the data, so both the compression speed and compression effect are taken into consideration, high performance in compression rate is achieved; and thus, the method has a active and realistic significance for the application of the remote monitoring of the intelligent garment.

The invention discloses a method and a device for transmitting state information, and a device for obtaining state information. The method comprises the following steps: identifying a first state by utilizing S bits; respectively identifying whether each resource block in M resource blocks is in the first state currently by utilizing each bit in M bits; identifying the current state of each resource block not in the first state currently by utilizing T bits respectively; coding S bits, M bits and all (M-N)*T bits which identify the current state of each resource block not in the first state currently to obtain a coding stream used for identifying state information; and transmitting the coding stream, wherein the number of the first state is the most in the current state of M resource blocks. The invention can save resources for transmitting coding streams, and store the corresponding relation of the coding streams and the state information without consuming large numbers of storage resources.

A motion vector encoding apparatus includes a detection unit for detecting motion vectors of respective blocks of a predetermined size and a range of the motion vectors; a first storage unit for storing therein the detected motion vectors; and a generation unit for generating motion vector predictors from the motion vectors outputted from the first storage unit. The apparatus also includes a calculation unit for calculating an average value of differential vectors between the motion vectors outputted from the first storage unit and the motion vector predictors. Moreover, the apparatus includes a determination unit for determining a parameter representing a motion vector encodable range based on the average value of the differential vectors calculated by the calculation unit; and an encoding unit for encoding the motion vectors based on the differential vectors and a parameter representing an encodable range outputted from the determination unit.

The differential values of adjacent pixels of a group of pixels are calculated and are re-ordered by referring to the magnitude of pixels of a neighboring line. Another time of calculation of differential values of the re-ordered differential values of adjacent pixels is done and the results go through a procedure of a variable length coding. When complex pattern happened, a market code is asserted to break the calculating the differences of adjacent pixels followed by a new raw pixel data as a reference for a new group of pixel. The variable length coding only keeps the “Quotient” and “Remainder” with the “Divider” implicitly done by prediction.

The invention discloses a method for inputting Chinese word digital strokes of a computer and a keyboard technology and belongs to the technical field of Chinese word information. The method comprises the following steps of: dividing strokes into four classes, namely single strokes, composite strokes, crossed strokes and connected strokes according to different states of the strokes in Chinese words by using the strokes of the Chinese words as coding elements; compiling independent codes and crossed and repeated codes for each stroke respectively; and distributing the strokes on keys according to a specific rule, and finishing inputting in a mode of firstly inputting even strokes and secondly inputting odd strokes according to a stroke sequence of an international specification. The invention has the advantages that: by using a set of universal codes which are compiled on a keyboard with different keys to input the Chinese words, input of the Chinese words without repeated codes is realized, software can be embedded into various kinds of handheld equipment, game equipment, automatic control equipment and various kinds of operating systems, and foundation is laid for Chinese word digitalization.

The invention discloses a polar coordinate edge coding method based on a circular model, and relates to an edge coding technology of an edge contour map. The invention aims to solve the problems thata common Freeman edge chain code has relatively large information redundancy on simple graphic representation and has relatively low sensitivity on edge point detection and edge matching. The method comprises the following steps: firstly, carrying out edge contour map conversion on an image to be coded, then establishing an object by taking the edge contour map as a model, establishing a circularmodel, respectively solving a truncation radius, a centering angle and a relative position of a point of an edge contour, respectively detecting the points to obtain coded points, and coding accordingto a coding principle. According to the method, a new coding model and dynamic direction and dynamic code length coding are adopted, so that the coding length is effectively shortened, the coding efficiency is improved, the coding error can be effectively reduced, and a simple graph boundary can be efficiently represented on the graph table complexity.

The invention relates to a mobile storage device with an authentication function. The mobile storage device comprises a mobile storage device body and an iris recognizer connected with the mobile storage device body through electrical signals. The iris recognizer comprises a sampling module, a preprocessing module, a characteristic encoding module and a code matching module, wherein the characteristic encoding module is used for extracting and encoding characteristics of an iris image and comprises a first-time LBP operator processing submodule, a second-time LBP operator processing submodule, a third-time LBP operator processing submodule and a fourth-time LBP operator processing submodule. Relevance between the center point and other neighbourhoods around the center point is improved, image texture different in scale and frequency can be met, after multi-time processing of the LBP operator processing submodules, the encoding length is reduced continuously without affecting the relevance between the center point and other neighbourhoods, storage space is saved, the calculation amount is reduced, recognition speed is increased, the recognition accuracy is improved, and robustness is high.

The invention discloses a compressed encoding and decoding method for network flow data and bitmap indexes thereof, which comprises the following steps of: 1, splitting an original stream data sequence according to field attributes, and storing the split original stream data sequence in a column database; 2, partitioning each column of data sequence by taking 4K lines as units to obtain original data blocks; 3, sorting the data in each original data block according to rows to obtain a rearranged data block, and generating a rearranged improved bit chart; 4, constructing an improved bitmap index table for the rearranged data blocks; and 5, respectively performing run coding compression on the rearranged data block, the rearranged improved bitmap and the improved bitmap index table, recording the type and length of 0 / 1, generating continuous 8-bit or 16-bit words, and forming a compressed data block, a rearranged improved bitmap compression table and an improved bitmap index compressiontable. According to the method, the compression ratio is greatly improved, and the coding length is greatly reduced while the coding complexity is reduced.

The invention discloses a pattern-based time division duplex / time division multiple access channel planning frame coding method, which mainly solves the problem of low coding efficiency of a conventional channel planning frame coding method. The method comprises the following steps of: (1) setting network nodes; (2) dividing a planning cycle; (3) distributing time slots in the planning cycle by a central node to obtain a distribution result of the time slots in the planning cycle; (4) generating uplink and downlink node patterns according to the time slot distribution result; (5) defining P code words according to the purposes of the time slots, and coding the P code words; and (6) generating uplink and downlink time slot mapping patterns according to the time slot distribution result, and combining the uplink and downlink node patterns with the uplink and downlink time slot patterns to complete planning frame coding. The method has the advantages of low planning frame coding length, low overhead of transmission of planning frames in a channel, high utilization rate of the channel and low requirement on equipment, and can be applied to the field of various local area networks and access networks adopting time division duplex / time division multiple access communication.

The invention discloses an ATM (automatic teller machine) input device with identification functions implemented by the aid of irises. The ATM input device comprises an ATM input device body and an iris identifier. The iris identifier is in electric signal connection with the ATM input device body and comprises a sampling module (1), a preprocessing module (2), a feature encoding module (3) and an encoding matching module (4), and the feature encoding module is used for extracting and encoding features of iris images and comprises a first LBP (local binary pattern) operator processing sub-module, a second LBP operator processing sub-module, a third LBP operator processing sub-module and a fourth LBP operator processing sub-module. The ATM input device has the advantages that the relevance of central points and other surrounding neighborhoods can be improved, requirements on image textures with different scales and frequencies can be met, the encoding lengths can be continuously reduced after the iris images are repeatedly processed by the LBP operator processing sub-modules without influence on the relevance of the central points and the surrounding neighborhoods, accordingly, storage spaces can be saved, the computational complexity can be reduced, the identification speeds can be increased, the identification accuracy can be improved, and the ATM input device is high in robustness.

A compression method featuring dynamic coding for wireless communication in wireless network is used to transmit a packet to clients. An access point (AP) divides a packet into several chunks all having a fixed length, sorts repetition frequencies of all the chunks, and encodes the repeated chunks with Huffman codes. Before transmitting the packet, AP divides the packet into chunks and determines whether there are chunks having been encoded, and transmits the encoded packet and the codes thereof to a specified client and other clients within coverage of transmission. After receiving the encoded packets, the client decodes the encoded packets to recover the original ones. The other clients also store the repeated chunks and the codes thereof The information of the Huffman codes of the repeated chunks needn't be transmitted every time for different clients since other clients may overhear the Huffman codes not intended to send to them.

The invention provides an automatic control device based on iris recognition. The automatic control device comprises an automatic control device and an iris recognizer which is in electrical signal connection with the automatic control device. The iris recognizer comprises a sampling module (1), a preprocessing module (2), a feature coding module (3) and a coding matching module (4). The feature coding module (3) is used for extracting and coding features of an iris image, and comprises a first LBP operator processing sub-module, a second LBP operator processing sub-module, a third LBP operator processing sub-module and a fourth LBP operator processing sub-module. According to the invention, the correlation between a center point and other surrounding areas is increased; image texture of different scales and frequencies can be realized; after repeated processing of the LBP operator processing sub-modules, coding length is constantly reduced without affecting the correlation between the center point and the surrounding areas; storage space is saved; calculation amount is reduced; the recognition speed is improved; the recognition accuracy is enhanced; and high robustness is acquired.

The invention relates to an inputting method for encoding and expressing Chinese characters through common language characters and keyboards of the inputting method. Main points of the input method comprise that note and semon units of the common language based on Chinese grammar and mandarin pronunciation are used as fundamental character formation parts, all the character formation parts are distributed on corresponding keys of a general computer keyboard or a cell phone keyboard according to laws, and Chinese characters are encoded through common language characters to be input. Various input keyboards are further designed by combination with basic definitions and setting principles of the common language characters. The keyboards comprise a 26-key keyboard and a 32-key keyboard based on 101- series general computer keyboards, a computer 10-key small numeric keyboard, a general cell phone 8-key keyboard and the like. According to the inputting method, advantages of prior commonly known encoding inputting methods are combined, and defects of the methods are made up, rules are simple and easy to learn and remember, the computer character inputting speed can be improved greatly, and popularization and promotion is facilitated.

This invention relates to a Chinese spelling, tone and stroke combined input method. Wherein, applying Chinese code and special characters to form Chinese code database with Chinese code equal to the first spelling character plus Chinese vowel plus the tone plus the stroke, tone equal to one of the character opposite to one of the five tones in Chinese spelling, and the stroke equal to first stroke character plus the second stroke character plus the final stroke character (making up with the final stroke if total strokes less than three). First inputting Chinese the spelling character, then one or more of strings of vowel, tone, and stroke with any character can be inserted into another string or past; or inputting expression or file content. This invention is easy to study, has high efficiency and strong function, and brings the most flexibility to user.

The invention provides a superconducting quantum digital-to-analog conversion circuit and a quantum voltage noise source device. A first high-speed pulse signal and a second high-speed pulse signal are transmitted to a tail end along the respective corresponding microwave transmission line structures and are combined when being transmitted to a combining module. The first high-speed pulse signal and the second high-speed pulse signal which are equal in amplitude and opposite in polarity offset each other and then are absorbed by a terminal resistance module, and a common-mode voltage error problem of a traditional superconducting quantum digital-to-analog conversion circuit can be solved. Therefore, the used high-speed digital signal does not need to adopt an encoding mode with lower efficiency in order to avoid a common-mode voltage error problem. Therefore, through the superconducting quantum digital-to-analog conversion circuit, the common-mode voltage problem is solved, an arbitrary waveform synthesis system is simple, and the maximum synthesizable signal amplitude can be maintained.

The invention relates to a navigator started based on iris recognition, wherein the navigator includes a navigation device and an iris recognition device in electrical single connection with the navigation device; the iris recognition device comprises: (1) a sampling module; (2) a preprocessing module; (3) a feature encoding module used for extraction and encoding of characteristics of an iris image and including a first LBP operator processing sub module, a second LBP operator processing sub module, a third LBP operator processing sub module and a fourth LBP operator processing sub module; and (4) an encoding matching module. The relationship of a center point with other surrounding neighborhood regions is increased, and image textures with different scales and frequencies can be met; after processing with several LBP operator processing sub modules, under a condition without affecting the relationship of the center point with the surrounding neighborhood regions, the encoding length is reduced continuously, storage space is saved, the calculated quantity is reduced, the recognition speed is improved, the recognition accuracy rate is enhanced, and relatively high robustness is obtained.

A Chinese-character "Root element code" input method is characterized by that the Chinese characters are splitted into roots as the coding elements, the coding elements are assigned to the key codes, and a Chinese character can be input by keying its key codes.

In a lossless compression-encoding device, a differential coding part calculates a prediction value of data to be compressed, and calculates a prediction error that is a difference between the prediction value and an actual value of the data to be compressed. A prediction error conversion part performs reversal of a sign bit of the prediction error output by the differential coding part in case that the reversal of the sign bit of the prediction error decreases an absolute value of the prediction error. A variable-length coding part performs variable-length coding on the prediction error that has been processed by the prediction error conversion part to generate a variable-length code representing the prediction error, and outputs the variable-length code as compressed data in such a manner that a code length of the compressed data decreases as the absolute value of the prediction error decreases.

The present invention relates to one Chinese character inputting method utilizing the ten digital keys. The method includes designating 26 letters to the 10 digital keys according to special rules and 5 kinds of basic strokes, including horizontal, vertical, right slant, left slant and turning, to 5 digital keys in coding all Chinese characters. The said method supports conventional pronunciation input method, conventional stroke order input method and, especially, the mixed pronunciation and stroke order input method. The Chinese characters are prompted in display screen based on their frequency for selection. The said method is easy and high in input speed.

The invention discloses an elevator car identified through iris. The elevator car comprises an elevator car and an iris identifier in electric signal connection with the elevator car; and the iris identifier includes a sampling module (1), a preprocessing module (2), a characteristic encoding module (3) for extracting and encoding characteristics of iris images and including a first LBP operator processing submodule, a second LBP operator processing submodule, a third LBP operator processing submodule and a fourth LBP operator processing submodule, and a code matching module (4). The adopted technical scheme by the elevator car adds relevance between a center point and other surrounding adjacent areas, can satisfy image textures with different sizes and frequencies, continuously reduces the encoding length without influencing relevance between the center point and the surrounding adjacent areas after multiple times of processing by the LBP operator processing submodules, saves the storage space, reduces the calculated amount, accelerates the identifying speed, enhances the identifying accuracy, and is higher in robustness.

The invention relates to the field of article safety protection, in particular to an article safety protection device and system. The article safety protection device comprises a touch system, a control system, an alarm system and a power supply; the touch system comprises a touch combination key, a surface sensing device, a gravity sensor and a horizontal sensor; the control system comprises a control combination key; the alarm system comprises an alarm; the touch combination key, the alarm and the power supply are connected in series to form an upper circuit; the surface sensing device, thegravity sensor and the horizontal sensor are connected in parallel to form a trigger branch circuit, and the trigger branch circuit is sequentially connected with the control combination key, the alarm and the power supply in sequence to form a lower circuit. The device has the functions of preventing theft and losing and preventing the system from being damaged; the problem about article safety protection is solved through simple and convenient operation. The misoperation alarm function can be achieved, electricity is consumed only when the alarm is triggered, no electricity is consumed in the normal state, and environmental protection and energy conservation are achieved.