5 results about "Null character" patented technology

The present application relates to the technical field of firmware booting, and particularly provides an automatic multi-path booting method based on a configuration file, comprising the following steps: S1, when a UEFI firmware is executed to a preset callback point of a booting device selection stage, a callback function is executed, all accessed storage devices are enumerated in the callback function, whether an external storage medium conforming to a preset file system format exists is detected, and whether a predefined configuration file exists is found by traversing a root directory or a specified path of the medium; S2, if the configuration file is found, contents thereof are loaded to a memory buffer by a UEFI file system protocol, and are terminated by a null character; subsequently, a text structure of the configuration file is parsed according to a keyword, at least one booting strategy identifier and corresponding target booting parameters are extracted, and the present application can effectively solve the problems of backwardness, low efficiency, high operation cost and complex process of an existing UEFI pre-booting interaction mode.

This method according to the present disclosure comprises: acquiring image information including a text description information (TDI) supplemental enhancement information (SEI) message; and deriving text description information for at least one picture on the basis of the TDI SEI message, wherein the TDI SEI message includes a text description designated in a character string format, and the text description designated in the character string format is not a null character string.

The application relates to a WebSocket-based embedded serial port remote transparent transmission method and system, and relates to the technical field of embedded communication. The method comprises the following steps: registering a callback function of a receiving data pointer and a byte length parameter to a UART interrupt service program through a hardware abstraction layer; when a UART interrupt is triggered, executing the callback function to write original byte data into a ring buffer; and in a network task time slice, reading the original byte data from the ring buffer to construct a WebSocket frame, and sending the WebSocket frame to a client through a TCP connection. The application can realize asynchronous decoupling of a serial port interrupt and network sending, avoid heap overflow caused by dynamic memory allocation, guarantee complete transparent transmission of binary data containing null characters, and improve real-time performance and reliability in a resource-limited environment.

The invention relates to an OCR text matching and structured processing system and method and a storage medium. Comprising the following steps of: initializing a variable timemat and a set paindboxes; traversing the text line groups and skipping the processed text detection box; the similarity is calculated according to fixedkeys, and keywords are judged with 0.7 as a threshold value; a value box is selected for matching of the confirmed keywords according to a post-adjacent principle; sorting multiple rows of values such as'inspection content 'according to a Y axis and connecting and combining the values by using comma; when the appropriate value is not found, null character strings are given to the key; after conventional pairing is completed, secondary traversal is carried out to complement the keywords which are not paired for the first time, and finally a structured key value result is output. The system comprises a state management module, a traversal module, a keyword matching module, a pairing logic module, a multi-line processing module, a default value module, a supplementary traversal module, a result output module and the like. According to the scheme, the accuracy, the integrity and the availability of a structured result are improved in a complex format and identification error scene.

This invention relates to the field of data conversion technology, providing a method, apparatus, and computer-readable storage medium for converting tabular data. The invention converts the current row of string data in the source table into a first string array separated by whitespace characters. All strings in the first string array are then written into a second string array. Based on the number of whitespace characters between adjacent strings in the first string array of the current row, empty strings are written at corresponding positions in the second string array to represent empty data columns in the source table data. This ensures that when the second string array, which represents empty data columns in the source table data, is input into the target table, the resulting table will not have misaligned data columns, making the tabular data conversion more accurate.