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1165 results about "Bitmap" patented technology

In computing, a bitmap is a mapping from some domain (for example, a range of integers) to bits. It is also called a bit array or bitmap index. As a noun, the term "bitmap" is very often used to refer to a particular bitmapping application: the pix-map, which refers to a map of pixels, where each one may store more than two colors, thus using more than one bit per pixel. In such a case, the domain in question is the array of pixels which constitute a digital graphic output device (a screen or monitor). In some contexts, the term bitmap implies one bit per pixel, while pixmap is used for images with multiple bits per pixel.

Remote monitoring and maintenance method for power distribution switch equipment based on Internet of Things

The invention discloses a power distribution switchgear remote monitoring and maintenance method based on the Internet of Things, relates to the technical field of power system operation and maintenance, and solves the problems that in an existing power distribution system, the edge anomaly recognition capability is weak, a control feedback chain is not closed, and multi-terminal control conflicts occur frequently. According to the scheme, a structured time sequence index of multi-source data is constructed on edge equipment, and equipment state drift is judged based on residual function included angle change; a control command management mechanism of a unique transaction identifier is introduced, a dual-channel feedback structure and a control mutual exclusion stack are combined, and a remote command consistency control chain is established; a hidden danger propagation chain is constructed on the cloud based on the abnormal Boolean bitmap and the topological relation, and a multi-node state linkage analysis and risk priority intervention strategy is achieved; according to the invention, the abnormity identification accuracy, the remote control stability and the system-level operation and maintenance response efficiency of the power distribution switch equipment are obviously improved.
Owner:SHANGHAI ZHIXU POWER EQUIP XIANGCHENG CO LTD

PDF drawing identification and information structured extraction method

The invention discloses a PDF (Portable Document Format) drawing recognition and information structured extraction method. The method comprises the following steps: generating a high-resolution bitmap through image preprocessing; positioning and classifying a text region, a table region and a symbol region in the drawing based on a target detection model of transfer learning; hough transform is combined with SIFT feature matching to identify engineering symbols, and sub-pixel positioning is realized through an RANSAC algorithm; after the oblique text is corrected through affine transformation, the content is extracted through OCR; reconstructing a table structure based on OPTICS clustering and projection analysis; constructing an RDF knowledge graph according to a coordinate association rule; and using U-Net difference to detect and position an omission area and complementing the omission area. According to the method, deep learning and image processing technologies are fused, the problems of low rotating text recognition rate, table structure loss and semantic association deficiency in a traditional method are solved, through lightweight model compression and TensorRT acceleration, the analysis accuracy is remarkably superior to that of the traditional method, and the method can be widely applied to the fields of constructional engineering, petrochemical engineering and the like and has wide application prospects. And the drawing information processing efficiency and the data integrity are improved.
Owner:ZHEJIANG THERMAL POWER CONSTR CO LTD

SaaS intelligent concurrent pushing system

The invention relates to the technical field of message pushing, in particular to an SaaS (Software as a Service) intelligent concurrent pushing system which comprises a tenant flow monitoring module, a resource binding module, a lock-free object writing module, a handle layout construction module and a cache prefetching delivery module. According to the method, the high-frequency business object is identified by monitoring the flow characteristics of the tenants, and the complete Slab page is dynamically applied and bound to the thread exclusive local allocation buffer area, so that physical isolation of bottom layer resources is realized to eliminate global lock competition and context switching overhead in a multi-thread environment; lock-free memory writing is executed based on a privatized pointer, the object construction efficiency is greatly improved, a compact storage structure in which a bitmap is adjacent to a connection handle is constructed, a hardware cache prefetching mechanism is triggered by utilizing bitmap reading, connection data is loaded to a CPU cache line in advance, and the connection data is stored in the cache line. And the cache miss rate is reduced and the concurrent delivery performance of massive messages is remarkably improved by utilizing a memory locality principle.
Owner:JUNPENG SPECIAL EQUIP

Method, apparatus and computer program

There is provided an apparatus comprising at least one processor and at least one memory storing instructions that, when executed by the at least one processor, cause the apparatus at least to receive, from an access node, an information indicating configured grant uplink resources for performing uplink data transmission to the access node; receive, from the access node, configuration information indicating a number of bits; transmit, to the access node, a dynamic indication comprising a bitmap of a length specified by the number of bits indicated by the configuration information, said bitmap indicating subsequent configured grant uplink resources which the apparatus will not use as unused configured uplink grant resources; and transmit, to the access node, a new dynamic indication, wherein the new dynamic indication cannot claim back unused configured grant uplink resources.
Owner:NOKIA TECHNOLOGIES OY

Data migration method, access processing method, data migration system and electronic equipment

The embodiment of the invention provides a data migration method, an access processing method, a data migration system and electronic equipment. The data migration method is applied to a switch, the switch communicates with a plurality of memory devices in a memory pool based on an interconnection protocol, and each memory device is provided with a plurality of memory areas. When data migration needs to be carried out on a first memory area in a memory pool, a switch sequentially migrates a plurality of data pages obtained by dividing data in the first memory area into available second memory areas according to pages, and in the migration process, a page bitmap determined for the first memory region is utilized to record migration states of the plurality of data pages. By adopting the scheme, the problem of large-area fault of the server caused by the memory problem can be effectively solved, the page-level granularity is adopted to migrate the data in the first memory region page by page in the migration process, the access of the server to the first memory region is continuously processed in the migration process, and the influence on the performance of the server is reduced.
Owner:HANGZHOU ALICLOUD FEITIAN INFORMATION TECH CO LTD

Index optimization and compression storage system and method for large-scale literature set

The invention discloses an index optimization and compression storage system and method for a large-scale literature set, and the method comprises the following steps: S1, collecting and preprocessing literature data, and generating a standardized text data set; s2, carrying out keyword semantic vector coding, and constructing a keyword semantic vector matrix; s3, constructing an initial Gaussian mixture model to obtain a clustering center, a covariance matrix and a weight; s4, introducing a sea elephant optimization algorithm to optimize clustering parameters, and outputting an optimal clustering result; s5, constructing a semantic clustering structure, and generating an index tree structure; s6, performing bitmap compression and inverted coding, and constructing an index table supporting Boolean logic; and S7, dynamically accessing the newly added literature, and completing incremental updating of the index structure. The method is used for improving the index construction efficiency and the storage compression rate of a large-scale literature set, and efficient and semantic literature retrieval service capable of being incrementally updated is achieved.
Owner:CENTRAL COMPILATION & TRANSLATION PRESS CO LTD

Recognition and verification method and system for secondary drawing of transformer substation

The invention discloses an identification and verification method and system for a secondary drawing of a transformer substation, and belongs to the technical field of image identification, and the method specifically comprises the steps: analyzing a CAD vector diagram, obtaining four-corner references and pixel coordinates of a scanning graph, building initial mapping of pixels and engineering millimeter coordinates by taking an engineering millimeter coordinate system as a reference, and generating a unified intermediate representation model; constructing a terminal strip parameterization template based on the vector anchor point set and the visual anchor point set; a composite deformation field is calculated through vector-bitmap-vector closed-loop rendering calibration, terminal row alignment and terminal sequence binding are completed in the composite deformation field, and a terminal pixel position-terminal sequence-engineering millimeter coordinate consistent mapping table is formed; comparing the topological netlist to obtain an electrical node corresponding table; and performing source decomposition on the terminal position residual error based on the composite deformation field and generating a self-adaptive tolerance band, and finally executing wiring verification by taking the self-adaptive tolerance band, the electrical connectivity and the serial number consistency as criteria and outputting a verification report.
Owner:ZHEJIANG ELECTRIC TRANSMISSION & TRANSFORMATION ENG CO +1

Method and device for transmitting / receiving signal in wireless communication system

A user equipment according to one or more embodiments disclosed in the present specification can receive configuration information about a plurality of CSI-RS resources, measure CSI on the basis of one or more from among the plurality of CSI-RS resources configured through the configuration information, and transmit a CSI report including the CSI measurement result, wherein the CSI report can include a plurality of bitmaps related to the CSI measurement, a first bitmap from among the plurality of bitmaps is for reporting one or more CSI-RS resources selected for the CSI measurement from among the plurality of CSI-RS resources, and a second bitmap from among the plurality of bitmaps is for reporting positions of non-zero coefficients from among coefficients related to a CSI codebook for each of the selected one or more CSI-RS resources.
Owner:LG ELECTRONICS INC

Transmission method and apparatus, device, and readable storage medium

A transmission method and apparatus, a device, and a readable storage medium are disclosed. The method includes: sending, by a terminal, information for determining a position of a valid orthogonal basis and a coefficient of the valid orthogonal basis to a network side; wherein the information for determining the position of the valid orthogonal basis comprises at most two of spatial domain orthogonal basis, bitmap, or delay position. The method further comprises: receiving, by the terminal, first indication information that indicates the terminal not to send the spatial domain orthogonal basis and the delay position; sending the information for determining the position of the valid orthogonal basis to the network side comprises: sending the information for determining the position of the valid orthogonal basis to the network side, wherein the information does not comprise the bitmap, the delay position, and the spatial domain orthogonal basis.
Owner:VIVO MOBILE COMM CO LTD

Display device and sequence animation playing method

The invention provides a display device and a sequence animation playing method, and the method can respond to a sequence animation playing instruction, obtain an updating period of a sequence animation, read a target bitmap object from a bitmap set associated with the sequence animation according to the updating period, and update an image frame displayed by an animation view according to the target bitmap object. Wherein the sequence animation comprises a plurality of continuous image frames, the bitmap set comprises a plurality of bitmap objects, the bitmap objects are used for representing the image frames of the sequence animation loaded into the running memory from the memory in advance, and the bitmap set is periodically reset according to the sequence animation stored in the memory; the target bitmap object is used for representing an image frame to be displayed by the animation view in the current updating period. According to the method, the bitmap set in the memory can be periodically loaded, the occupation optimization of the memory is realized, and the problem that the occupation of the memory is continuously increased when the sequence animation is played is solved.
Owner:HISENSE VISUAL TECH CO LTD

Quality monitoring abnormity positioning method and system for multi-source heterogeneous media data

The invention discloses a quality monitoring abnormity positioning method and system for multi-source heterogeneous media data, and particularly relates to the technical field of quality monitoring of the multi-source heterogeneous media data.The method comprises the steps that through access and time base normalization, sources such as RTSP, HLS / DASH, offline files and message buses are mapped to a unified time reference, and out-of-order rearrangement and late cutting are carried out; basic quality elements are extracted from A / V / S in a sliding window, a dynamic threshold value is formed by adopting a trimming mean value and a median absolute deviation, and a window-level quality event is generated; using event anchor points as common reference to estimate cross-modal time delay and fuse evidences, outputting scene / mode labels by means of a lightweight online classifier, entering a confidence reduction mode when the evidences are missing, and outputting an availability bitmap and a reason code; and then event confirmation, time-space range refinement and hierarchical root cause posterior determination are completed, influence measurement and priority are calculated, and finally an anomaly positioning and root cause analysis record set including an event timeline, severity / influence degree, root causes and disposal suggestions is formed.
Owner:SHENZHEN YUEZHUO DIGITAL INFORMATION TECHNOLOGY CO LTD

Memory controller, memory management method and effective data positioning circuit unit

The invention provides a memory management method, a memory controller and an effective data positioning circuit unit. The method comprises the following steps: determining a plurality of candidate virtual blocks according to respective valid data count values of a plurality of virtual blocks; obtaining a mapping table bitmap corresponding to each candidate virtual block, determining a plurality of target virtual blocks based on the mapping table bitmaps, and generating a corresponding integrated mapping table bitmap; obtaining one or more sub-mapping tables according to the integrated mapping table bitmap; and generating an effective data table according to the physical address in the sub-mapping table and the physical address contained in the target virtual block. According to the method, the candidate objects for garbage collection are subjected to secondary screening in a hardware acceleration mode to determine the optimal target combination, and the mapping relation of the candidate objects is integrated to obtain the physical address of the corresponding effective data, so that the effective data table is made to improve the efficiency of garbage collection operation, and the reading burden of a storage device is reduced.
Owner:XIAMEN HONGXINCHUANG ELECTRONICS CO LTD

PDF progressive analysis rendering method and device and related medium

The invention discloses a PDF progressive analysis rendering method and device and a related medium, and the method comprises the steps: constructing a rendering task context according to a target PDF document, and obtaining a rendering context data set; analyzing the rendering context data set to obtain a target page analysis task object; writing a page content stream in the target page analysis task object into an element queue, and performing viewport scheduling to obtain a viewport to-be-rendered element set; performing fragmentation rendering on the viewport to-be-rendered element set to obtain a progressive rendering control state object; and performing termination judgment on the progressive rendering control state object, and outputting a PDF progressive analysis rendering object. According to the method and the device, the to-be-rendered viewport element set obtained through calculation is subjected to fragmentation rendering to generate the bitmap, then termination judgment is performed, when the condition is met, the instruction is sent out, the resources are cleaned, and the PDF progressive analysis rendering object is obtained, so that when the PDF document is loaded, the conditions of interface blockage and first screen display delay do not occur any more, and the PDF document loading efficiency is improved.
Owner:AFIRSTSOFT CO LTD

Data management method and system for distributed data architecture

The invention relates to the technical field of data processing, and discloses a data governance method and system for a distributed data architecture, and the method comprises the steps: carrying out the spatial-temporal feature coding of multi-modal data generated by equipment, and obtaining equipment data carrying a spatial-temporal feature code; constructing a multi-level association bitmap based on the equipment data carrying the spatial-temporal feature codes; based on the constructed multi-level association bitmap, cooperative computing of edge physical nodes and central governance nodes of the distributed data architecture is achieved; according to the method, the multi-level association bitmap is constructed through spatial-temporal feature coding, the problem of association analysis distortion caused by edge node storage fragmentation is solved, and efficient collaboration of edge physical node data fragmentation storage and central governance node global association calculation is achieved.
Owner:山东亚微软件股份有限公司

Memory system, memory controller, garbage collection method, and storage medium

The embodiment of the invention provides a memory system, a memory controller, a garbage collection method and a storage medium. The method comprises the following steps: acquiring a first bitmap corresponding to a first source data block to an Nth bitmap corresponding to an Nth source data block; n is an integer greater than or equal to 2; obtaining a combined bitmap based on the first bitmap to the Nth bitmap; reading a page table item table according to the combined bitmap; and writing the effective data corresponding to the first source data block to the Nth source data block in the page table entry table into the target data block. According to the garbage collection method, garbage collection operation can be performed on a plurality of source data blocks. And merging the bitmaps corresponding to the plurality of source data blocks to obtain a merged bitmap. And the corresponding page table item table is read through the merged bitmap, so that response delay caused by repeatedly reading the page table item table among the source data blocks is avoided, and the processing efficiency of the whole garbage collection process is improved.
Owner:YANGTZE MEMORY TECH CO LTD

Scheduling method for UWB and related product

The present disclosure relates to scheduling methods for an ultra-wideband (UWB) and related products. One example method includes generating scheduling information and sending the scheduling information, where the scheduling information includes a time unit bitmap and a bitmap offset, the time unit bitmap indicates whether a time unit is used by a UWB device to transmit a UWB signal, the bitmap offset is used to determine a start time unit in which the UWB device transmits the UWB signal, and a time unit corresponding to a 1st bit of the time unit bitmap is the start time unit.
Owner:HUAWEI TECH CO LTD

Three-terminal message synchronization method

The invention relates to the technical field of distributed data synchronization, in particular to a three-terminal message synchronization method, which comprises the following steps of: generating FALCON public and private keys for three terminals respectively, negotiating a two-threshold threshold public key, writing a message key hash with a vector clock into a multi-branch Verkle tree, and updating a root abstract; a sending end carries out integrity proof broadcasting through a Bloom bitmap, a compression model, a root abstract and zero knowledge; a receiving end compares the bitmaps to obtain a difference set, and a coding window, a redundancy proportion and power distribution are obtained through reinforcement learning; a sending end uses sparse Fountain coding to send difference set packets in wireless and optical links in a shunting manner; a receiving end carries out linear solution decoding, verification and certification, batch box opening, supplementary signing aggregation and root abstract refreshing; and the completion rate and the link quality are continuously written, and self-adaptive operation is carried out in offline, alternating or low-power scenes. The method has the advantages of quantum security, low bandwidth, low time delay and energy conservation, and transaction omission and data conflict can be avoided.
Owner:FUJIAN JINSHUBAO TECH CO LTD

Object group determination method and device, electronic equipment and storage medium

The invention discloses an object group determination method and device, electronic equipment and a storage medium. The embodiment of the invention can be applied to artificial intelligence, and the method comprises the steps: obtaining preset bitmap information and object label information of at least one target object; determining a target bitmap element corresponding to the target object in the preset bitmap information; based on preset object tag information and object tag information of each target object, setting element states of target bitmap elements corresponding to each target object, and obtaining a plurality of set target bitmap elements corresponding to the preset object tag information; aggregating the plurality of set target bitmap elements corresponding to the preset object tag information to obtain object bitmap information; and determining an object group corresponding to the preset object tag information based on the element state of each bitmap element in the object bitmap information. In the embodiment of the invention, the whole bitmap information does not need to be traversed or other data structures do not need to be used. According to the scheme, the efficiency of confirming the object group can be improved.
Owner:TENCENT TECH (BEIJING) CO LTD

Storage space allocation method and device, storage medium and electronic equipment

The invention discloses a storage space distribution method and device, a storage medium and electronic equipment, and relates to the technical field of storage space distribution.The method comprises the steps that in response to a received storage space distribution request, a target storage space is determined in equipment storage space; according to a space group bitmap corresponding to a storage space group in the target storage space, determining a target space group in an idle state from the storage space group; determining a target space block in an idle state from the storage space blocks according to the space block bitmaps corresponding to the storage space blocks in the target space group; and finally, allocating the target space block to the storage space allocation request. According to the method, the target space block is determined through the bitmaps corresponding to the multiple space levels, the target space block is allocated to the storage space allocation request, the situation of storage space fragmentation can be reduced through the space block allocation mode, and then the storage performance is improved.
Owner:JINAN INSPUR DATA TECH CO LTD

Method and system for planning drop points in base plate bitmap related to multi-nozzle printing

The invention discloses a method and a system for planning drop points in a substrate bitmap related to multi-nozzle printing, and relates to the technical field of ink-jet printing of display screens, and a nozzle module comprises at least two nozzles; comprising the steps that spray hole coordinates in a spray head module are obtained, the spray hole coordinates are constructed with coordinates of an initial spray hole as the benchmark, and the initial spray hole is the spray hole with the smallest Y-axis coordinate in the spray head module; the Y axis is the moving direction of the spray head module; the spray hole coordinates comprise an initial spray head number, an initial spray hole number, a reconstructed spray hole number and coordinate numerical values; a drop point coordinate of a sub-pixel pit in the substrate bitmap is obtained, the drop point coordinate is constructed with an initial point of the substrate bitmap as a reference, and the initial point is the upper left corner of the substrate bitmap; and the coordinates of the initial spray holes are aligned with the coordinates of the initial points, and any drop point coordinate is matched with one spray hole coordinate, so that drop point printing planning in the base plate bitmap is completed. According to the method and the device, printing drop point planning of multi-nozzle printing on the RGB substrate can be realized.
Owner:GUANGDONG NATIONAL INNOVATION TECHNOLOGY OPTOELECTRONICS EQUIPMENT CO LTD

Beam shape indication for machine learning based beam management

Certain aspects of the present disclosure provide a method for wireless communications by a user equipment (UE), generally including receiving a configuration indicating, for one or more reference signals (RSs), at least one bitmap indicating beam shape information and a reference beam direction corresponding to the bitmap, receiving dynamic signaling indicating that the UE is to update at least one of the bitmap or corresponding reference beam direction for at least one of the RSs, and updating the one of the bitmap or corresponding reference beam direction for at least one of the RSs based on the dynamic signaling.
Owner:QUALCOMM INC

Garbage collection optimization method and device, equipment and medium

The invention discloses a garbage collection optimization method and device, equipment and a medium. The invention relates to the technical field of solid state disks, which comprises the following steps that: a global invalid data bit chart is established in a host memory, each table item in the global invalid data bit chart corresponds to a physical block, and a bitmap bit in each table item corresponds to a physical page in the physical block; bit values corresponding to the bitmap bits comprise a first bit value and a second bit value; responding to a data updating event through an access acceleration engine so as to dynamically update the bit value of the corresponding physical page in the global invalid data bit graph; and when garbage collection is triggered, screening the physical page of which the bit value is the second bit value in a to-be-collected source physical block according to the global invalid data bit chart and the access acceleration engine to perform validity verification and data migration, and skipping the physical page of which the bit value is the first bit value. According to the invention, the garbage recycling efficiency is improved.
Owner:SUZHOU UNIONMEMORY INFORMATION SYST LTD

Dynamic compression coding method, system, storage medium and device

The invention discloses a dynamic compression coding method, which is applied to a sparse matrix, and comprises the following steps: S1, obtaining the sparse matrix, and generating a bitmap with the same dimension as the sparse matrix, a value in the bitmap being used for indicating whether an element at a corresponding position in the sparse matrix is zero; s2, a mark sequence is generated according to the bitmap, and each mark corresponds to multiple continuous elements in the sparse matrix and is used for representing whether each element in the multiple elements is zero or not; s3, extracting non-zero elements in the sparse matrix according to the mark sequence; and S4, combining the flag sequence with the non-zero elements to form a data stream after compression coding. The invention also discloses a dynamic compression coding system, a storage medium and a device. According to the dynamic compression coding method, the index storage cost can be reduced, the data access efficiency can be improved, the storage and bandwidth occupation can be reduced by supporting parallel coding and decoding, and finally the calculation throughput can be improved.
Owner:GUANGDONG UNIV OF TECH +1

Sparse Transform model reasoning acceleration method based on GPU platform

The invention provides a sparse Transform model reasoning acceleration method based on a GPU platform, and the method comprises the steps: building a first storage format in a sparse Transform model, and carrying out the coding of a sparse mask of any type through the first storage format; wherein the first storage format comprises an inner layer block and an outer layer block; an outer layer block adopts a block compression sparse row structure, and row pointers and column indexes of a completely effective block and a partially effective block are recorded; the inner layer block adopts an unsigned 64-bit integer value bitmap and is used for representing masks in the block; based on the sparse mask matrix coded by the first storage format, performing sparse calculation on the query, the key and the value, and outputting a corresponding context vector; compared with a traditional sparse mask storage structure in the prior art that calculation sparsity and memory access regularity are difficult to consider when the masks present random, global or mixed distribution characteristics, the method has the advantages that support for any type of masks is achieved, storage overhead is reduced, memory access continuity is improved, good GPU parallelism is kept, and thread divergence and memory access conflicts are avoided.
Owner:CHINA UNIV OF PETROLEUM (BEIJING)

Data backup method, device, equipment, medium and computer program product

The invention discloses a data backup method and device, equipment, a medium and a computer program product, and relates to the technical field of data processing.The method comprises the steps that when a continuous protection snapshot is created for a source volume, the current backup generation of the source volume before the snapshot is created is set as a snapshot generation identifier; and synchronizing data by relying on mapping relation metadata including the current backup generation of the source volume, the last backup generation of the source volume, the storage backup data generation of the target volume and the water level field. Reading corresponding generation data of the source volume according to the water level mark in the first backup, writing into the target volume, and increasing the water level to the total number of source volume data blocks after completion; during incremental backup, a new snapshot is created, the water level is reset, only adjacent generations of difference data are synchronized, and a corresponding generation identifier is distributed for target volume data in each backup. In this way, no extra bitmap is needed to participate in difference marking, the synchronization efficiency is improved, the target volume keeps historical backup data of all generations in the synchronization period, and the problem that the target volume cannot effectively protect data in the traditional incremental backup synchronization stage is solved.
Owner:INSPUR SUZHOU INTELLIGENT TECH CO LTD

Real-time ultra-high-definition interactive naked-eye 3D display content synthesis method

The invention discloses a real-time ultra-high-definition interactive naked-eye 3D display content synthesis method, which comprises the following steps of S1, firstly, modeling interactive content, such as buildings, mechanical equipment, game scenes and the like, and converting mechanical and building models and the like into a. Fbx format by means of a. Step file format in a unified manner; s2, completing model processing in professional model processing software such as 3DsMax and the like: unifying coordinate axes, and performing surface reduction on the model; and S3, building an interaction scene in the Unity 3D based on the processed model. And S4, for a scene and a model needing to be displayed, generating a virtual parallax camera equivalent to off-axis photography, and controlling the shooting parameters of the parallax camera. And S5, performing hybrid synthesis on the multi-view parallax image based on the texture bitmap, calculating large-scale pixels based on a calculation shader, and shifting a GPU idle time sequence in a Unity 3D script process, and then uniformly entering a rendering assembly line to complete rendering and synthesis of the whole scene. And S6, developing interaction input logic according to different object interaction requirements. The invention provides a calculation three-dimensional display algorithm based on a texture bitmap, ultra-high-definition naked-eye 3D display content can be synthesized in real time under Unity 3D, and a better 3D display effect can be obtained by combining technologies such as equivalent off-axis photography and the like. In addition, the invention also provides a display efficiency optimization method based on a calculation shader, so that the system can run on a lower-configuration host platform, and the problem of higher hardware requirements for real-time ultrahigh-definition naked-eye 3D display content synthesis while the interaction requirements are met is solved.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

Memory systems and methods of operating thereof, computer-readable storage mediums

Examples disclose a memory system and operating method thereof and computer-readable storage medium. An example memory system includes a memory controller and a memory coupled to the memory controller. The memory includes multiple memory blocks, a memory block includes multiple physical pages. The memory controller is configured to: determine at least one source memory block from the multiple memory blocks; in response to the bitmap type associated with a first source memory block from the at least one source memory block being a first bitmap, write valid data stored in the first source memory block into the first target memory block from the multiple memory blocks; in response to the valid data being written into the first target memory block, erase the source memory block.
Owner:YANGTZE MEMORY TECH CO LTD

WEB end real-time remote connection monitoring method based on RDP protocol

A WEB end real-time remote connection monitoring method based on an RDP protocol comprises the following steps that a gateway server is maintained between an RDP client and a server, a firewall is configured, a routing rule is added, and RDP flow is forwarded to a local loopback address; the rear end of the gateway server starts an RDP proxy service, receives the RDP traffic forwarded by the firewall, and creates an independent thread to run a Flask application; after the RDP proxy service receives the RDP data packet, an RDP protocol data unit is analyzed according to a protocol format; establishing connection between the RDP proxy service and the Web front end through WebSocket, defining a corresponding event according to the analyzed PDU data type, and transmitting the event to the Web browser end in real time; and the Web end creates a bitmap cache and canvas cache canvas, and displays a remote picture and key data connected with the RDP on a Web page in real time. The scheme not only can effectively monitor the remote desktop session, but also has the advantages of high bandwidth utilization rate, low resource consumption, convenience in cross-platform deployment and the like.
Owner:NANKAI UNIV

Method and equipment for processing edge area in ink-jet printing of film layer structure

The invention discloses a processing method and device for an edge area in film layer structure ink-jet printing, and the processing method comprises the steps: determining the edge area of a to-be-printed pattern on a substrate bitmap; the pattern to be printed comprises an edge area and a non-edge area; the edge area is divided into a plurality of edge subareas so that an ink-jet printer can conveniently conduct film layer structure printing on the edge subareas of the to-be-printed pattern; wherein in the direction from the edge area to the non-edge area, the sizes of the multiple edge subareas are sequentially decreased progressively; one size of the edge subarea corresponds to one ink drop extraction rate, the size of the edge subarea is the width of the edge subarea, and the ink drop extraction rate of the edge subarea is the proportion of ink drop points which are prohibited from printing to the total ink drop points in the edge subarea. The edge area of the film layer structure can be flat, and the film thickness is uniform.
Owner:GUANGDONG NATIONAL INNOVATION TECHNOLOGY OPTOELECTRONICS EQUIPMENT CO LTD +1

RDMA out-of-order receiving and selective retransmission method, device and system and storage medium

InactiveCN121308926AError preventionTransmission path multiple useData packLabelling algorithm
The invention provides an RDMA (Remote Direct Memory Access) out-of-order receiving and selective retransmission method, which comprises the following steps of: recording an arrival state of a data packet by adopting a Bitmap algorithm and / or a segmentation marking algorithm of a sliding window, dynamically generating ACK (Acknowledgement Character) or NAK (Negative Attached Keying) feedback information according to the algorithm, and only retransmitting a lost data packet according to the received NAK feedback information. The RDMA out-of-order receiving and selective retransmission method supports Bitmap statistics of a sliding window or a segment marking method of saving a memory, is compatible with an existing protocol and realizes an ACK mechanism of selective retransmission, and avoids the problem of redundant transmission in a traditional mechanism. The invention further discloses computer equipment, a data transmission system and a computer readable storage medium.
Owner:THEO END (SHENZHEN) COMPUTING TECHNOLOGY CO LTD