303results about How to "Copyright protection" patented technology

A contents managing method of regulating a number of copied contents storable on a storage medium includes giving a predetermined number of copyable contents for each content, recording the copied contents on the storage medium upon reception of an instruction for copy recording on the storage medium when there is a remainder in the number of copyable contents, decrementing the number of copyable contents by “1” every time one copied content is recorded on the storage medium at a time of recording, and incrementing the number of copyable contents by “1” every time one copied content is erased from the storage medium upon reception of an instruction to erase the copied contents from the storage medium.

To provide a backup management device that deletes a content so as to be restorable in the future while protecting a copyright of the content, in a case where there exists a backup of the content. In an HD recorder 100, a first information storage unit 102 stores a content, a second information storage unit 103 stores a backup of the content, a secure storage unit 104 stores a hash value of the content. If receiving an instruction to delete the content so as to be restorable, a control unit 113 deletes the content from the first information storage unit 102. When the content is played back, an encryption processing unit 109 applies a calculation to the content to generate detection information, and the control unit 113 compares the hash value with the detection information to judge whether the content has been tampered.

A recording medium which allows consumers to access and purchase content while protecting the copyright of the content. The recording medium includes a secure data area and a non-secure data area. The secure data area is accessible by an apparatus whose authenticity is verified, and the non-secure area is accessible by the apparatus regardless of such verification. The secure data area stores a first content key. The non-secure data area stores first data and second data which can be decrypted. The first data includes a first encrypted content which is generated by encrypting a first content with the first content key, and the second data includes a second encrypted content which is generated by encrypting a second content with a second content key, where the first and second contents are related to each other.

The invention relates to a method, a client and a system for software access control. The method comprises the following steps: when a user starts the client, the client encrypts a character string consisting of a local unique identification code and a set date and generates an authorization and authentication ciphertext; and the software access of the client is controlled by combining an offline authentication mode and an online authentication mode according to the authorization and authentication ciphertext generated by the client and an authorization and authentication ciphertext which is stored in an authorization and authentication file by the client. According to the method, the client and the system, the copyright of software is effective protected in a mode that the online authentication is combined with the offline authentication, and the authorized user can conveniently use the software. In the network environment specified by the user, registration and login are not required, and the software can be used without limit; in the environment besides the specified environment, the software is conditionally limited; and the software which is allowed to normally operated in the specified environment can be operated for a preset time in the same computer off the specified network operating environment, and the software is effectively limited to be copied and used among computers.

An audio stream is divided into a plurality of audio object (AOB) files that are recorded having each been encrypted using a different encryption key. At least one piece of track management information (TKI) is provided corresponding to each track. Playlist information (PLI) assigns a playback position in a playback order to each track when a plurality of tracks are to be played back one after the other.

A data processor includes: a first medium on which a content's data has been bound-recorded; a memory having stored thereon the content's access control information; and a read / write section for reading and writing data from / on a second medium. In response to a request to back up the content, the read / write section writes the content's data on the second medium and the memory retains the access control information without modifying the information. If a request to restore the content has been received and if the access control information that makes the content accessible is stored in the memory and if the content's data has been written on the second medium, then the read / write section reads the content's data from the second medium and writes the data on the first medium.

The camera includes a sensor for sensing the photographer's iris image and registering the image in advance. The iris image is recorded in the image of a subject by a digital MCU at a timing different from that at which the image of the subject is captured. The recording timing is that at which the camera power supply is turned off, that at which a recording medium is ejected from the camera or that at which the iris image to be recorded is changed to changed to the registered iris image of another photographer. The recording of the iris image is achieved by embedding it as a watermark or by appending it to metadata.

It is an object of the present invention to protect a copyright of a content by suppressing creation of illegal copies of the content and prevent a content from being transmitted beyond a range of personal use in a process to transmit the content through a wire or wireless LAN. Before transmitting a content from a content transmission apparatus to a content reception apparatus, the content transmission apparatus and the content reception apparatus authenticate each other. In the authentication, a timer measures a time interval between a transmission of an authentication request and a reception of an acknowledgement of a reception of the request or between a transmission of a response to a received authentication request and a reception of an acknowledgement of a reception of the response. If the time interval does not exceed an upper limit, a content encrypted by using a shared key is transmitted from the content transmission apparatus to the content reception apparatus, and the address of the content reception apparatus as well as apparatus information unique to the content reception apparatus are cataloged in the content transmission apparatus. Thus, in order to transmit another content, the content is merely encrypted prior to the transmission without measuring a time interval.

A recorder is composed of a drive 102 and a host 103 that mutually authenticate each other. A C2_G 141 of the drive 102 calculates a medium ID and a medium key and obtains a medium unique key. The medium unique key is encrypted using a session key Ks generated by the mutual authentication and transferred to the host 103. A title key generated by a random number generator 143 of the drive 102 is transferred to the host 103. A content key calculated by a C2_G 145 of the drive 102 using the title key and the CCI 232 is encrypted using the session key Ks and then transferred to the host 103. A content is encrypted using a content key decrypted by the host 103. The drive 102 records the encrypted content, the encrypted title key, and the CCI 232 to the medium 101.

The invention provides an APK application reinforcing method and system. The method comprises the steps of inputting the source code of files to be reinforced or APK files, preprocessing the files to be reinforced, analyzing the semantics, using different encryption ways according to different objects, conducting JVM class initialization processing on the encrypted objects, extracting the encrypted objects to the class initialization process in the modes of static members, static code blocks and the like, and at last outputting a reinforcing result. Through the APK application reinforcing method, APK application programs under the Android can be reinforced, displaying and calling of any cleartext character string or library functions can not occur to a decompilation result, a core code function is hidden, the difficulty of reverse analysis of the APK files is greatly increased, and therefore the effect of protecting the application codes of a developer is achieved.

Disclosed are methods and systems of watermarking multimedia data using mobile communication terminals. More particularly, methods and systems of selectively watermarking the multimedia data are disclosed. According to the present invention, it is made possible to trace and check author or provider of multimedia data without intervention of a certificate authority, thereby protecting copyright of multimedia data and resolving problems misusing and abusing multimedia data relating to other person's privacy. Further, it is made possible to minimize economic loss and to prevent processing speed of mobile communication terminals from being reduced.

The invention provides an electronic digital information copyright protection method and system as well as an electronic terminal. The method comprises: the electronic terminal transmits an electronic digital information downloading request to a server; the server encrypts the electronic digital information by use of an encryption key to obtain encrypted digital information; the server transmits the encrypted digital information to the electronic terminal; the electronic terminal receives and stores the encrypted digital information; and the electronic terminal determines whether to decrypt the encrypted digital information by use of a decryption key, and if yes, displaying the decrypted electronic digital information or forwarding the decrypted electronic digital information meeting a preset forwarding condition or a user-defined forwarding condition. Because the electronic digital information to be distributed or stored is encrypted by the encryption key, the encrypted electronic digital information has to be decrypted before being displayed for forwarded by a user, so that only the authorized user can process the electronic digital information, thereby protecting the copyright of the electronic digital information occupier.

A data transceiver includes: at least first and second encrypting / decrypting means each for encrypting and decrypting data; and transceiver means for transmitting and receiving data. In a first transmission mode, first transmission data encrypted by the first or second encrypting / decrypting means is transmitted by the transceiver means. In a first reception mode, first received data received by the transceiver means is decrypted by the first or second encrypting / decrypting means. In a second transmission mode, second transmission data decrypted by the first encrypting / decrypting means is encrypted by the second encrypting / decrypting means and then is transmitted by the transceiver means. In a second reception mode, second received data received by the transceiver means is decrypted by the second encrypting / decrypting means and then is encrypted by the first encrypting / decrypting means.

The invention discloses a commodity printing customization method and a platform thereof. The commodity printing customization platform comprises a client service platform system, a production and management system and a rear-end customization system, the client service platform system comprises a high-fidelity printing customization file acquisition module, a commodity information selection module and a user printing customization file and commodity management module, the rear-end customization system comprises a virtual customization commodity rendering module for rendering the augmented reality, and the production and management system comprises a semi-finished product material acquisition guide printing module. The commodity information selection module can provide two-dimensional editing areas corresponding to different composition parts of a commodity, users can edit the printing without limitation, and the printing customization is more flexible.

Even if contents data distributed over a network are once destroyed, the contents data are restored, as the copyright protection is maintained. A PC memorizes backup of distributed music contents on a hard disc, at the same time as it transmits the using log information of the music contents stored in the hard disc to an EMD server. If the music contents in the hard disc are destroyed, the PC acquires the using log information from the EMD server to reproduce the backup data memorized in the hard disc depending on the using log information.