Synchronous digital media content system

Abstract

The invention discloses a synchronous digital media content system, and relates to the field of digital content synchronization. The method comprises the following steps: a content management module for performing multi-level slicing on media content to be distributed and calculating semantic affinity; the synchronous control module is used for generating a clock correction value and a playing state log according to the semantic affinity; the authority management module is used for outputting an access control token through multi-modal mapping based on the playing state log; the data transmission module is used for completing media slice transmission through dynamic congestion control according to the playing state log and the access control token; and the copyright protection module is used for generating a dynamic copyright factor according to the access control token and the transmission confirmation information, generating an embedded identifier through a preset algorithm, and recording the embedded identifier and the dynamic copyright factor in the block chain. Through semantic-driven multi-layer slice scheduling, behavior-perceived authority control and a copyright embedding mechanism with a consistent structure, the distribution efficiency, the security access capability and the copyright protection level of the digital media content are comprehensively improved.

Description

Technical Field

[0001] This invention relates to the field of digital content synchronization, specifically to a system for synchronizing digital media content. Background Technology

[0002] With the explosive growth of digital media content and the widespread adoption of content consumption models in multi-terminal environments, the demand for multimodal expression, multi-user simultaneous playback, and multi-path distribution of media content is constantly increasing. Traditional digital media distribution systems generally adopt a unified streaming model, lacking the ability to perceive and schedule the semantic structure of content, making it difficult to meet the collaborative playback requirements of multiple users, high fidelity, and low latency.

[0003] On the other hand, digital content faces significant copyright protection risks during cross-device and cross-regional distribution. Existing copyright management mechanisms mostly rely on static watermarking or content fingerprinting schemes, lacking the ability to dynamically bind to user identity, device characteristics, and playback behavior, making it difficult to achieve verifiable traceability of distribution activities. Furthermore, existing access control policies are often based on single entity authentication mechanisms, lacking cross-modal fusion and behaviorally sensitive expression frameworks, making it difficult to meet the requirements of refined permission management in complex network environments.

[0004] Meanwhile, with the development of blockchain technology, decentralized data storage and smart contract mechanisms have provided new ideas for tracing and confirming the copyright of media content. However, how to highly couple blockchain with content characteristics and achieve bidirectional consistency between dynamic content status and on-chain records still faces many challenges.

[0005] Therefore, there is an urgent need for a system architecture that integrates semantic segmentation management, synchronization control, access permission verification, reliable data transmission, and dynamic copyright protection to achieve synchronous distribution, behavior awareness, and copyright protection of digital media content in multi-terminal environments. This system must possess high semantic correlation awareness capabilities, a multimodal feature fusion mechanism, path adaptive transmission capabilities, and a dynamic fingerprint embedding and smart contract linkage mechanism to ensure the synchronization, security, and traceability of media content in complex network environments. Summary of the Invention

[0006] Based on the shortcomings of the prior art described above, the purpose of this invention is to provide a synchronous digital media content system to solve the aforementioned technical problems.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a synchronous digital media content system, comprising: The content management module performs multi-level segment management on the media content to be distributed, obtains the segment set, and calculates the semantic affinity of the corresponding segments; The synchronization control module generates clock correction values ​​and playback status logs based on the slice set and corresponding semantic affinity. The access control module receives user identification information, device feature information, and content metadata. Combined with playback status logs, it outputs access control tokens through multimodal graph mapping and quantum entropy token generation algorithms. The data transmission module, based on the playback status log, access control token, and slice set, completes the transmission of media slices through multi-path forward error correction coding and dynamic congestion control, and feeds back transmission confirmation information and retransmission requests to the synchronization control module. The copyright protection module generates a dynamic copyright factor based on the access control token and transmission confirmation information, generates an embedded identifier through a preset algorithm and interacts with the smart contract, and records the embedded identifier and dynamic copyright factor on the blockchain.

[0008] The present invention is further configured such that the content management module includes: The media content to be distributed is sliced ​​in multiple layers based on spatial dimensions, temporal dimensions, and modal characteristics to form a set of slices with structural layers. Extract high-order semantic features from the slices and construct semantic embedding vectors; A semantic affinity matrix between slices is generated based on semantic embedding vectors, which describes the degree of correlation between slices in the semantic space.

[0009] The present invention is further configured such that the semantic affinity is measured based on the correlation between the media content slices to be distributed in the dimensions of semantic structure, contextual dependence and temporal evolution, and characterizes the semantic similarity of any two slices in the slice set in the multimodal feature space.

[0010] The present invention is further configured such that the synchronization control module includes: Construct a semantically driven slice association graph to represent the semantic continuity and structural reachability between slices; Generate a covariate matrix that characterizes the temporal offset between slices based on graph structure and the temporal properties of slices; The global clock correction amount for the slice is derived by jointly using the covariate matrix and the historical offset parameter; The playback status log is composed of the playback time, playback status parameters, and synchronization consistency indicators for each slice.

[0011] The present invention is further configured such that the permission management module includes: Receive user identification information, device feature information and content metadata, and combine them with playback status logs to construct a cross-modal association expression structure; By realizing the structural representation and semantic coupling of entity relationships through multimodal graph mapping, a quantum entropy token generation algorithm based on complex domain perturbation mechanism is used to output access control tokens with unique identity and access sensitivity.

[0012] The present invention is further configured such that the data transmission module includes: Based on the playback status log, access control token, and slice set, construct a multi-path transmission strategy for media slices; The slices are redundantly encoded by forward error correction coding, and dynamic path allocation and rate adjustment are performed based on the real-time network congestion status. The receiving end reconstructs the slice integrity status, generates transmission confirmation information and retransmission requests, and feeds them back to the synchronization control module.

[0013] The present invention is further configured such that the copyright protection module includes: Dynamic copyright factors are generated based on access control tokens and transmission confirmation information, and embedded identifiers corresponding to media content are constructed based on preset embedding algorithms. By interacting with the blockchain platform through smart contracts, the generated embedded identifiers and corresponding dynamic copyright factors are submitted to the blockchain for recording and storage, thereby enabling the verification of copyright traceability and distribution behavior of media content.

[0014] The present invention is further configured such that the dynamic copyright factor is jointly constructed based on the user identification information in the access control token, device characteristic parameters, and playback status logs recorded in the content distribution path, to express the usage and behavioral characteristics of the distributed content in specific time, space, and carrier dimensions; By summarizing and integrating multidimensional information on access entities, transmission paths, and interaction behaviors, a digital representation with temporal dependence and entity consistency is formed.

[0015] The present invention is further configured such that the embedded identifier is a high-dimensional identifier sequence embedded in the media slice data structure, the high-dimensional identifier sequence is generated by dynamic copyright factors, and has the uniqueness of content instances and the verifiability of structure; By adopting an embedding field that is of the same origin as the media content feature matrix, position constraints are performed through a bit-level mapping structure and a segment-level indexing mechanism without changing the original media slice encoding structure.

[0016] This invention provides a synchronous digital media content system. The method includes: a content management module that performs multi-level segment management on the media content to be distributed, obtains a segment set, and calculates the semantic affinity of each segment; a synchronization control module that generates clock correction values ​​and playback status logs based on the segment set and corresponding semantic affinity; a permission management module that receives user identification information, device characteristic information, and content metadata, and outputs an access control token using a multimodal graph mapping and quantum entropy token generation algorithm in conjunction with the playback status logs; a data transmission module that, based on the playback status logs, access control tokens, and segment set, completes the transmission of media segments using multipath forward error correction coding and dynamic congestion control, and feeds back transmission confirmation information and retransmission requests to the synchronization control module; and a copyright protection module that, based on the access control tokens and transmission confirmation information, generates dynamic copyright factors, generates embedded identifiers using a preset algorithm, interacts with a smart contract, and records the embedded identifiers and dynamic copyright factors on the blockchain. The beneficial effects include: 1. Improve the semantic consistency and distribution efficiency of content scheduling: The content management module performs multi-level slicing of media content in terms of space, time and modality, and constructs a high-order semantic embedding and semantic affinity matrix, so that the slices have structural relevance in the semantic space, providing theoretical support and data foundation for content collaborative scheduling and synchronous playback; 2. Implement identity binding and behavior awareness for access control: The permission management module integrates user identifiers, device characteristics, and playback status logs to construct a cross-modal semantic expression structure. Combined with the quantum entropy token generation algorithm based on the complex domain perturbation mechanism, it achieves the uniqueness of the access control token and the sensitivity of access behavior, enhancing the dynamic adaptation capability of access permissions. 3. Ensure the security and structural consistency of the embedded copyright identifier: The embedded identifier is generated based on dynamic copyright factors, which has the uniqueness of instances and the verifiability of structures. It is embedded into the embedding domain that is of the same origin as the media content feature matrix using bit-level mapping and fragment-level indexing mechanisms, without affecting the original encoding structure, thus achieving content embedding transparency and copyright authentication compatibility.

[0017] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In the drawings: Figure 1 A flowchart illustrating a synchronous digital media content system as an exemplary embodiment of the present invention. Detailed Implementation

[0019] The embodiments of the present invention will be described below with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are only for illustrating the present invention and not for limiting the scope of protection of the present invention.

[0020] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0021] In the following description, numerous details are explored to provide a more thorough explanation of embodiments of the invention. However, it will be apparent to those skilled in the art that embodiments of the invention may be practiced without these specific details. In other embodiments, well-known structures and devices are shown in block diagram form rather than in detail to avoid obscuring embodiments of the invention.

[0022] Example 1 A synchronous digital media content system, such as Figure 1 As shown, it includes: The content management module performs multi-level segment management on the media content to be distributed, obtains the segment set, and calculates the semantic affinity of the corresponding segments; The synchronization control module generates clock correction values ​​and playback status logs based on the slice set and corresponding semantic affinity. The access control module receives user identification information, device feature information, and content metadata. Combined with playback status logs, it outputs access control tokens through multimodal graph mapping and quantum entropy token generation algorithms. The data transmission module, based on the playback status log, access control token, and slice set, completes the transmission of media slices through multi-path forward error correction coding and dynamic congestion control, and feeds back transmission confirmation information and retransmission requests to the synchronization control module. The copyright protection module generates a dynamic copyright factor based on the access control token and transmission confirmation information, generates an embedded identifier through a preset algorithm and interacts with the smart contract, and records the embedded identifier and dynamic copyright factor on the blockchain.

[0023] The present invention is further configured such that the content management module includes: The media content to be distributed is sliced ​​in multiple layers based on spatial, temporal, and modal characteristics to form a structured, hierarchical set of slices. Specifically, the media content to be distributed... Represented as a multimodal data cube containing spatial frames Time frame Modal channels , in the form of Based on this, multi-layer slicing is performed, including spatial slicing, which divides each frame into multiple local blocks to form spatial structural units; temporal slicing, which extracts frames with semantic transition meaning from consecutive video frames; and modal slicing, which decouples and segments different modal channels such as audio, subtitles, and motion capture; forming a set of slices denoted as . ; Extract high-order semantic features from slices and construct semantic embedding vectors. Utilize a multimodal structure to extract semantic representation tensors from each slice. ,in, This represents a multimodal semantic encoder, which will convert each Mapped to a unified semantic embedding vector , For the embedded dimension, use the structure-preserving transformation. ,in, For semantic embedding weight matrix, As a bias vector, semantic embedding enables the slice set to possess distinguishability and structural continuity in the semantic space; The semantic affinity between slices is generated based on semantic embedding vectors, which describes the degree of correlation between slices in the semantic space. The defined semantic affinity matrix provides a high-resolution structural reference for playback scheduling and synchronization control.

[0024] The present invention is further configured such that the semantic affinity is measured based on the correlation between media content slices to be distributed in terms of semantic structure, contextual dependency, and temporal evolution dimensions, characterizing the semantic similarity of any two slices in the slice set in the multimodal feature space. Specifically, semantic affinity is defined. Represents any two slices , The relationships between them, and their construction includes: Semantic structural relevance ,in, Semantic structural relevance represents the similarity response of semantic embedding vectors under the influence of a higher-order structural interaction matrix. For the preset structural interaction matrix, This is an asymmetric perturbation term used to maintain the non-zero derivative. It is the transpose symbol; Context-dependent weights ,in, For context-dependent weights, The relative path distance of the slice in the semantic path is derived from the semantic path graph. For context decay factor, It is a stable term; Temporal Evolution Consistency ,in, To ensure consistency in temporal evolution, the evolutionary trend of slices along the time axis is considered, and the tensor is transformed through state transition. Represents a three-dimensional semantic tensor mapping. It is a third-order temporal transformation tensor. To fix the intermediate dimension The resulting two-dimensional matrix slice; The final semantic affinity is constructed as follows: By constructing semantic affinity based on semantic embedding vectors, the system can accurately quantify the degree of correlation between any two media content slices in the dimensions of multimodal, contextual, and temporal evolution. This enables the system to splice and sort content according to semantic continuity during content scheduling, avoiding semantic abrupt changes and contextual jumps, thereby significantly improving the user experience.

[0025] The present invention is further configured such that the synchronization control module includes: Constructing a semantically driven slice association graph to represent the semantic continuity and structural reachability between slices; specifically, constructing a directed graph. ,node Represents semantic slices, edges Represent semantic continuity and reachability, and calculate the weight of each edge. ,in, , Construct a mapping matrix for the graph. The weight of each edge represents the semantic connection strength. In bilinear form, the semantically driven slice association graph reflects whether each slice has semantic connectivity and structural reachability with other slices on the semantic path; Based on the graph structure and the temporal attributes of slices, a covariate matrix characterizing the temporal offset between slices is generated, and a covariate matrix is ​​defined. This is used to characterize the temporal offset dependency between slices, where... , For slices , The time attribute embedding matrix, It represents the Hadamah accumulation. The residual matrix is ​​the historical offset mapping matrix. The determinant represents the nonlinear compression state of the matrix. To score the temporal covariates between slices, accurate temporal correction of slices from different sources is achieved through covariate matrix and tensor quantization modeling. The global clock correction for each slice is derived by jointly using the covariate matrix and historical offset parameters. Derive its global clock correction amount The construction formula is as follows ,in, For the first Clock correction value for each slice, Number of slices As a time-related factor, , For slices and Current correction value, It is a non-linear activation function; The playback time, playback status parameters, and synchronization consistency indicators of each slice are combined to form a playback status log. Each slice records a playback status log triplet. , For slices Playback status log, This is the corrected playback time. Encoding for playback status, This is a synchronization consistency indicator, calibrated from experimental data.

[0026] The present invention is further configured such that the permission management module includes: It receives user identification information, device characteristic information, and content metadata, and combines them with playback status logs to construct a cross-modal association expression structure. Specifically, the construction formula is as follows: ,in, For users ,equipment Content Slicing During playback Cross-modal semantic association values, The user identity embedding vector is learned from registration information and behavioral features. For the device feature matrix, For content slice metadata embedding, For a moment slice Playback status log, For user-device interaction mapping vectors, The path selection multiplication of the tensor matrix retains only the non-zero structures in the path, and embeds user, device, and content information into the token to prevent impersonation or copying access; By implementing structural representation and semantic coupling of entity relationships through multimodal graph mapping, and using a quantum entropy token generation algorithm based on complex-domain perturbation mechanism, an access control token with unique identity and access sensitivity is output, thus integrating the multimodal structure... Embedded into the semantic graph space, a perturbation function is constructed and tokens are generated to ensure uniqueness and security, and a cross-modal mapping graph is built. Represents a node , Complex weights in the perturbation graph, token generation formula: , For access control tokens, The constant of the disturbance channel amplifier is... This is the modulation intensity factor.

[0027] The present invention is further configured such that the data transmission module includes: Based on the playback status log, access control token, and slice set, a multi-path transmission strategy for media slices is constructed. Specifically, a weighted distributed path mapping structure is formed based on the playback status log, access control token, and slice set. ,in, For slices In the path Scheduling priority on, Slicing in the playback state tensor Current playback sensitivity, The access security weight calculated for the permission token. For path Bandwidth fluctuation embedding, For path In time Network congestion status coding, As a vector tensor product, this scheduling structure embodies the comprehensive coupling between access control, playback urgency, and path status. Redundancy coding is applied to slices using forward error correction coding, and dynamic path allocation and rate adjustment are performed based on real-time network congestion status. Specifically, each slice undergoes forward error correction coding, and dynamic transmission rate matching is performed according to path scheduling priority. The error correction coding expression is as follows: ,in, This is the encoded redundant packet sequence. For the number of redundant packets, Original slice The Middle Sub-block content value, The redundancy expansion factor controls the strength of resistance to data loss. To correct errors in the mask matrix and control which data is redundant, this structure combines high-order perturbation and nonlinear mask control, which not only strengthens redundancy but also improves content recoverability. At the receiving end, the slice integrity state is reconstructed, transmission acknowledgment information and retransmission requests are generated and fed back to the synchronization control module, and the matrix mapping formula is reconstructed: ,in, To reconstruct the criterion value, a value greater than a preset threshold is considered complete. The local decoder decision factor is trained based on the sub-block cross-interference structure. The receiver uses the structural determinant criterion to evaluate integrity, avoid misjudgment, and improve feedback efficiency.

[0028] The present invention is further configured such that the copyright protection module includes: Dynamic copyright factors are generated based on access control tokens and transmission confirmation information, and embedded identifiers corresponding to media content are constructed based on preset embedding algorithms. By interacting with the blockchain platform through smart contracts, the generated embedded identifier and corresponding dynamic copyright factor are submitted to the blockchain for recording and notarization, realizing the verifiability of copyright traceability and distribution of media content. Through smart contracts and the blockchain platform, the embedded identifier and copyright factor cannot be maliciously modified, and have strong authentication capabilities.

[0029] The present invention is further configured such that the dynamic copyright factor is jointly constructed based on the user identification information in the access control token, device characteristic parameters, and playback status logs recorded in the content distribution path, to express the usage and behavioral characteristics of the distributed content in specific time, space, and carrier dimensions; By summarizing and integrating multi-dimensional information on access entities, transmission paths, and interaction behaviors, a digital representation with temporal dependence and entity consistency is formed, specifically, the dynamic copyright factor. Used to uniquely identify media content in time ,space and carrier The use case under this dimension. This factor is constructed based on the following three information sources: user identification information contained in the access control token. Equipment characteristic parameters A collection of playback status logs recorded in the content distribution path The construction formula is as follows: , Define a user's behavior tensor over time. This is a mapping matrix of device parameters in the spatial dimension. This represents the evolutionary sequence of playback logs across different media platforms. For path similarity convolution, For time-series deep interweaving, This represents a three-dimensional nested structure inductor that constructs the final higher-order copyright factor vector.

[0030] The present invention is further configured such that the embedded identifier is a high-dimensional identifier sequence embedded in the media slice data structure, the high-dimensional identifier sequence is generated by dynamic copyright factors, and has the uniqueness of content instances and the verifiability of structure; Using an embedding domain that is homologous to the media content feature matrix, positional constraints are applied through a bit-level mapping structure and a segment-level indexing mechanism without altering the original media slice encoding structure. Specifically, the embedding identifier construction formula is as follows: ,in, For embedding in the first One media slice, the first Embedded identifiers in frames, For the first The slice The media content feature matrix corresponding to the frame, For embedding functions, the structure-preserving mapping rules are executed; the embedding process maintains the media encoding structure unchanged, relying on bit-level mapping. With fragment-level indexing mechanism Its constraints are: That is, the identifier bit The embedding position is equal to the displacement driven by the copyright factor plus the index offset of the current segment. The embedding identifier of each media segment is bound to the specific use case, supporting precise positioning and source tracing.

[0031] It should be noted that the specific methods by which each module and unit performs operations in the synchronous digital media content system provided in the above embodiments have been described in detail in the method embodiments, and will not be repeated here. In practical applications, the synchronous digital media content system provided in the above embodiments can be configured to have different functional modules perform the above functions as needed, that is, the internal structure of the system can be divided into different functional modules to complete all or part of the functions described above, and this is not a limitation here.

[0032] The above embodiments can be implemented, in whole or in part, by software, hardware, firmware, or any other combination thereof. When implemented using software, the above embodiments can be implemented, in whole or in part, as a computer program product. The computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer programs are loaded or executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more sets of available media. The available medium can be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium. A semiconductor medium can be a solid-state drive.

[0033] It should be understood that the term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. A and B can be singular or plural. Additionally, the character " / " in this article generally indicates an "or" relationship between the preceding and following related objects, but it can also represent an "and / or" relationship. Please refer to the context for a more accurate understanding.

[0034] In this application, "at least one" means one or more, and "more than one" means two or more. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or multiple items. For example, at least one of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple.

[0035] It should be understood that in the various embodiments of this application, the order of the above-mentioned processes does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0036] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0037] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0038] In the several embodiments provided in this application, it should be understood that the disclosed system can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms.

[0039] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0040] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0041] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0042] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A synchronous digital media content system, characterized in that, include: The content management module performs multi-level segment management on the media content to be distributed, obtains the segment set, and calculates the semantic affinity of the corresponding segments; The synchronization control module generates clock correction values ​​and playback status logs based on the slice set and corresponding semantic affinity. The access control module receives user identification information, device feature information, and content metadata. Combined with playback status logs, it outputs access control tokens through multimodal graph mapping and quantum entropy token generation algorithms. The data transmission module, based on the playback status log, access control token, and slice set, completes the transmission of media slices through multi-path forward error correction coding and dynamic congestion control, and feeds back transmission confirmation information and retransmission requests to the synchronization control module. The copyright protection module generates dynamic copyright factors based on access control tokens and transmission confirmation information, generates embedded identifiers through a preset algorithm and interacts with smart contracts, and records the embedded identifiers and dynamic copyright factors on the blockchain.

2. The synchronous digital media content system according to claim 1, characterized in that, The content management module includes: The media content to be distributed is sliced ​​in multiple layers based on spatial dimensions, temporal dimensions, and modal characteristics to form a set of slices with structural layers. Extract high-order semantic features from the slices and construct semantic embedding vectors; A semantic affinity matrix between slices is generated based on semantic embedding vectors, which describes the degree of correlation between slices in the semantic space.

3. A synchronous digital media content system according to claim 2, characterized in that, Semantic affinity is measured based on the correlation between media content slices to be distributed in terms of semantic structure, contextual dependence and temporal evolution, and it represents the semantic similarity between any two slices in the slice set in the multimodal feature space.

4. A synchronous digital media content system according to claim 2, characterized in that, The synchronization control module includes: Construct a semantically driven slice association graph to represent the semantic continuity and structural reachability between slices; Generate a covariate matrix that characterizes the temporal offset between slices based on graph structure and the temporal properties of slices; The global clock correction amount for the slice is derived by jointly using the covariate matrix and the historical offset parameter; The playback status log is composed of the playback time, playback status parameters, and synchronization consistency indicators for each slice.

5. A synchronous digital media content system according to claim 3, characterized in that, The access control module includes: Receive user identification information, device feature information and content metadata, and combine them with playback status logs to construct a cross-modal association expression structure; By realizing the structural representation and semantic coupling of entity relationships through multimodal graph mapping, a quantum entropy token generation algorithm based on complex domain perturbation mechanism is used to output access control tokens with unique identity and access sensitivity.

6. A synchronous digital media content system according to claim 5, characterized in that, The data transmission module includes: Based on the playback status log, access control token, and slice set, construct a multi-path transmission strategy for media slices; The slices are redundantly encoded by forward error correction coding, and dynamic path allocation and rate adjustment are performed based on the real-time network congestion status. The receiving end reconstructs the slice integrity status, generates transmission confirmation information and retransmission requests, and feeds them back to the synchronization control module.

7. A synchronous digital media content system according to claim 6, characterized in that, The copyright protection module includes: Dynamic copyright factors are generated based on access control tokens and transmission confirmation information, and embedded identifiers corresponding to media content are constructed based on preset embedding algorithms. By interacting with the blockchain platform through smart contracts, the generated embedded identifiers and corresponding dynamic copyright factors are submitted to the blockchain for recording and storage, thereby enabling the verification of copyright traceability and distribution behavior of media content.

8. A synchronous digital media content system according to claim 7, characterized in that, The dynamic copyright factor is jointly constructed based on the user identification information in the access control token, device characteristic parameters, and playback status logs recorded in the content distribution path, expressing the usage and behavioral characteristics of the distributed content in specific time, space, and carrier dimensions. By summarizing and integrating multidimensional information on access entities, transmission paths, and interaction behaviors, a digital representation with temporal dependence and entity consistency is formed.

9. A synchronous digital media content system according to claim 7, characterized in that, The embedded identifier is a high-dimensional identifier sequence embedded in the media slice data structure. The high-dimensional identifier sequence is generated by dynamic copyright factors and has the uniqueness of content instances and the verifiability of structure. By adopting an embedding field that is of the same origin as the media content feature matrix, position constraints are performed through a bit-level mapping structure and a segment-level indexing mechanism without changing the original media slice encoding structure.

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