58results about How to "Strengthen copyright protection" patented technology

The invention provides a picture processing method and a picture processing device. The method includes acquiring a to-be-recognized first picture, calculating a first feature code of the first picture, comparing the first feature code with a prestored second feature code corresponding to a second picture to acquire a comparison result serving as the similarity between the first picture and the second picture, and storing related information of the first picture when the comparison result reaches a preset value. The picture processing method and the picture processing device have the advantages that similar pictures can be quickly searched out in current massive digital picture databases, whether or not the acquired pictures violate copyrights of original pictures can be easily figured out, and great benefits are brought to copyright protection of digital pictures.

The invention discloses a method and a device to improve Java software jailbreak difficulty and a Java software copyright verification method based on the method and the device. After development for Java software is completed and before the Java software is published, code obfuscation is carried out on non-program entry classes and methods after compiling, digital summary information of a software copyright protective module is extracted to obtain first summary information, the first summary information is hard coded to a copyright verification class as constant data, digital summary information of the copyright protective module in operation is extracted at a position where key operation is carried out by the copyright verification class by means of a summary information extraction module to obtain second summary information, and the second summary information is compared with the first summary information. If the second summary information is the same with the first summary information, the fact that the copyright protective module is not interpolated after the software is published is proved, and the software is legal; and if the second summary information is different from the first summary information, the fact that the software copyright protective module is modified is proved, the software may be jailbroken, and a user uses the software illegally. The method and the device and the copyright verification method improve jailbreak difficulty of the Java software and improve copyright protective strength.

The invention discloses a method for compiling and a compiler, relates to the technical field of computers and solves the problem that the copyright of a compiled object program can not be protected securely in the prior art. The method for compiling comprises the following steps: confirming the insertion point of the authentication code of a safety device in the intermediate code of a source program; and inserting the authentication code of the safety device in the corresponding position of the inserting point in the object program during the process of converting the intermediate code of the source program into the assembly code to acquire the object program. The compiler module of the compiler comprises a confirming unit used for confirming the insertion point of the authentication code of the safety device in the intermediate code of the source program, and an inserting unit used for inserting the authentication code of the safety device in the corresponding position of the inserting point in the object program during the process of converting the intermediate code of the source program into the assembly code to acquire the object program. The embodiment of the invention is mainly applicable to computer programming, in particular to compiling of various advanced languages.

The invention discloses a general video digital watermark method mainly comprising analysis, embedding and extraction processes of a system design scheme. The analysis of the system design scheme comprises determination of a system function, watermark algorithms Ai to be embedded, embedding proportions of all algorithms and minimum extraction frame number Fmin; the watermark embedding process comprises frame distribution of a video file, watermark information pre-processing, embedding of watermark algorithms and formation of video files containing watermarks, wherein the embedding of watermark algorithms comprises the steps of: calculating embedding frame numbers, selecting embedding frames and embedding the watermark; and the watermark extracting process comprises frame distribution of the video file, selection of video frames to be detected, extraction of watermark information and calculation similarity. In the invention, the plurality of watermark algorithms are embedded at the same time and the embedding proportions can be selected, thereby the watermark method obviously enhances attack-resistant property; the watermark embedding ensures the appreciation and the embedding speed of the video file by using a non-frame-by-frame embedding way; in the watermark extracting process, the number of the detecting frames is less and the detection efficiency is improved; in addition, the general video digital watermark method also intensifies the capability of resisting frame edition.

A content management system formed from a playback apparatus that requests and plays content, and a content management apparatus that manages duplication and deletion of content. The playback apparatus notifies group information of the playback apparatus to the content management apparatus, acquires information from the content management apparatus showing whether requests are permitted, and duplicates/deletes content. By judging whether the playback apparatus belongs to a group, and notifying whether a duplication request is permitted or rejected, based on in-group and out-group remaining numbers that show the remaining number of duplications permitted of apparatuses in-group and out-group, respectively, the content management apparatus relaxes restrictions on in-group content duplication as compared with out-group content duplication, and thus improves convenience for users in a home network, while protecting the rights of copyright holders, with respect to content duplication and usage.

The invention discloses a digital watermark algorithm based on text document protection. Implementation of watermark information in a text document consists of watermark embedding and watermark extracting; a watermark embedding treatment process comprises carrier text image pretreatment, ciphertext ID coding, pseudo-random periodic sequence watermark generation and carrier image fusion; and the watermark extracting treatment process comprises image reinforced treatment, extraction of a pseudo-random sequence watermark texture map and decoding of watermark information. For solving the technicalproblem that an existing digital watermark algorithm is poor in robustness, required ID information can be embedded in a text document by the algorithm, and even if a watermarked text is copied, photographed and sheared and the geometric structure of the watermarked text is damaged, watermark information concealed in the watermarked text can still be detected. The digital watermark algorithm based on text document protection can be widely applied to protection and tracing of documents with secret, document copyright protection, web page copyright protection, image mark protection of some commercial products and the like.

The application aims at providing a method and equipment for adding and detecting a video watermark. The method for adding the watermark in a video comprises the following steps: acquiring to-be-processed video information; determining a video frame sequence of a to-be-added watermark in the video information according to the watermark sequence information corresponding to the video information, wherein each video frame in the video frame sequence has corresponding watermark information in the watermark sequence information, and an order relation of two adjacent video frames in the video framesequence is matched with the order relation of watermark information corresponding to two video frames in the watermark sequence information; adding the corresponding watermark information of the video frame in the watermark sequence information on each video frame in the video frame sequence, thereby acquiring the video information added with watermark. Through the method provided by the invention, the attack resistance of the added video watermark is stronger.

The invention provides a digital product permission management method and a digital product permission management server. When an embodiment of a digital product is purchased, state information of the digital product in a database of the digital product permission management server is marked as undistributed; the permission of the digital product can be transferred to arbitrary terminal equipment in which a purchaser is logged at the moment; the state information is marked as distributed when the permission is transferred to the terminal equipment; and the permission cannot be distributed to any terminal equipment at the moment. If the digital product is not used, a return command is fed back to the digital product permission management server, and the state information is reset to be undistributed; if the digital product is used, usage information is marked on the terminal equipment firstly, and the state information is marked as used when the terminal equipment establishes communication connection with the digital product permission management server; and the permission of the embodiment of the digital product is disabled. The digital product permission management method and the digital product permission management server provided by the invention can be used for protecting copyright of digital products, and effectively prevent theft phenomenon of the digital products.

To protect copyright, the present invention provides a tamper-proof content-playback system. Its content-playback unit has the following I/O characteristics: A) at least a portion of its content input(s) is encrypted digital signals; B) at least a portion of its content output(s) is non-digital (e.g. analog) or non-electrical (e.g. image) signals. Only secure data connections are allowed for decrypted contents inside the content-playback unit. Accordingly, its components are preferably integrated into: a single chip, a single package, or a chip/package-on-panel.

The invention discloses a blockchain-based graphic design work copyright evidence storage method and device, and a medium, and aims to solve the problems that the development of graphic design relatedtools and the circulation of graphic design works reduce the plagiarism difficulty of the graphic design works and are not beneficial to copyright protection of the graphic design works. The method comprises the following steps: receiving a graphic design work copyright authentication request of an author node and a work to be authenticated by an auditor node in a blockchain network; authenticating the work to be authenticated based on a preset intelligent contract; and correspondingly writing the authenticated work to be authenticated and the author node into a block chain. According to themethod, on the basis of ensuring that the graphic design works have certain originality, the correctness and authenticity of copyright ownership of the graphic design works can be ensured through thecharacteristics of safety and tamper resistance of data stored in the blockchain, and the copyright ownership of the graphic design works is used as a copyright ownership certificate of the graphic design works, so that subsequent data tracing is facilitated.

The invention relates to a quick downloading method for large-data documents based on a broadcasting television network and a communication network. The method comprises the steps of: (1) connection: accessing a PC terminal into a broadcasting television network through a set-top box, wherein the terminal of the set-top box is connected with a front servicing device through the broadcasting television network and the communication network, a downloading customer terminal is arranged in the PC terminal, the front servicing device comprises an user accessing managing submodule, a content managing submodule and a content distributing submodule, the content managing submodule stores document resources, and the content managing submodule is connected with an internet; (2) service requesting; (3) service responding; and (4) receiving: receiving the signal containing documents from the broadcasting television network by the set-top box, processing the signal and then sending the signal to the PC terminal. The invention has the advantages of simple and compact structure, low cost, simple realizing principle, easy implementation, great enhancement of downloading speed, and the like.

The embodiment of the invention discloses a text encryption method and device. The method comprises the following steps: after a user terminal receives a text file sent by a network side, conducing encryption on the text file by utilizing identification information of the user terminal or set part information in the identification information, and generating a unique encrypted image on the text file; converting the text file and the encrypted image into an image file to be outputted. Or, the method comprises the following steps: when the network side sends the text file to the user terminal, conducing encryption on the text file by utilizing the identification information of the user terminal or the set part information in the identification information, and generating the unique encrypted image on the text file; converting the text file and the encrypted image into a graphic file, and sending the graphic file to the user terminal. According to the embodiment, through the setting of a graphic password on the text file, the identity of an infringer can be accurately positioned.

Copyright protection for printed memory is more difficult than writable memory. Accordingly, the present invention discloses a secure printed memory. Its printed-memory module stores the same content data for all devices in a same family; its writable-memory module stores different encryption keys for different devices in the same family. Because different devices in the same family are encrypted with different keys, compromising a single device does not compromise other devices in the family.

In a user-configurable pre-recorded memory (UC-PM), a user can select contents he is interested in, and pay copyright fees accordingly. With large capacity, low cost and great integratibility, 3D-M, more particularly 3D-MPM, is suitable for UC-PM. It provides excellent access control and impenetrable copyright protection. UC-PM will enable a copyright distribution model fair to both copyright holders and users. On the other hand, the 3D-MPM scaling should be the fastest among all memory types.