Class / Patent application number | Description | Number of patent applications / Date published |
386259000 | Video encryption | 25 |
20110103771 | APPARATUS AND METHOD FOR RECORDING PARTIAL ENCRYPTION OF BROADCAST PROGRAM - An apparatus for encrypting and recording a broadcasting program includes a packet input unit configured to receive packets of a broadcasting program to be recorded and sequentially output the packets, an encryption selector configured to receive the packets sequentially output from the packet input unit, selectively output the received packets to a first path and to a second path, wherein packets to be encrypted are output to the first path and packets not to be encrypted are output to the second path, an encryption processor configured to encrypt the packets output to the first path based on a predetermined encryption method, and a storing unit configured to store the encrypted packets from the encryption processor or store the packets output to the second path. | 05-05-2011 |
20110305435 | PLAYBACK DEVICE, RECORDING MEDIUM, PLAYBACK METHOD AND PROGRAM - A bytecode processing unit provided in a playback device is platform unit | 12-15-2011 |
20120070128 | INFORMATION PROCESSOR, INFORMATION PROCESSING METHOD, AND PROGRAM - An information processor includes a data processing portion which generates a content for delivery to a client. The data processing portion generates and provides a sub-content in which identification information of a content delivery client is recorded in audio data or subtitle data and a main content formed of image data which is reproduced together with the audio data or the subtitle data to the client, and generates and records management information in which the identification information recorded in the sub-content is associated with client information of the content provision destination in a storage portion. | 03-22-2012 |
20120082435 | MOVING IMAGE DISPLAY DEVICE - When an instruction to start list display of moving images is given, a process is performed to display representative images of respective Video | 04-05-2012 |
20120121236 | APPARATUS AND METHOD FOR GENERATING DIGITAL CINEMA CONTENT AND APPARATUS AND METHOD FOR PLAYING DIGITAL CINEMA CONTENT - Provided are an apparatus and method for generating digital cinema content and an apparatus and method for playing digital cinema content. The method of playing digital cinema content using a digital cinema package (DCP) including frame data having a first resolution and length information about frame data having a second resolution lower than the first resolution, and a key delivery message (KDM) includes obtaining a material exchange format (MXF) file and a decryption key by parsing the DCP and the KDM, extracting an encrypted triplet from the MXF file, extracting the length information about the second-resolution frame data using the encrypted triplet and the decryption key, decrypting an amount of data required to decrypt the second-resolution frame data in the first-resolution frame data using the length information about the second-resolution frame data, and decoding the decrypted second-resolution frame data. | 05-17-2012 |
20120128333 | TRANSMISSION CONTROLLER, RECEPTION CONTROLLER, TRANSMISSION CONTROL METHOD, RECEPTION CONTROL METHOD AND TRANSMISSION CONTROL PROGRAM - A transmission control device generates, based on a content stream acquired from an external source, auxiliary information necessary for at least one of recording and playback of a content in the content stream and transmits a transmission target stream to an external device. The transmission target stream includes a first stream portion based on the content stream and a second stream portion based on the generated auxiliary information. | 05-24-2012 |
20120134649 | METHOD FOR COPY PROTECTION - A method for copy protection in which an audiovisual or audio data is divided into a plurality of portions. The plurality of portions is at least partly scrambled and prepared so as to be stored on a record carrier in the scrambled order. This is done so that a physical position on the record carrier, e.g., a sector of the record carrier, where a respective portions of the divided data is stored depends on the scrambled order. | 05-31-2012 |
20120141093 | CONTENT TRANSMISSION/RECEPTION SYSTEM - To provide a device that easily judges that content that has been edited and moved back differs from original content. A content transmission device | 06-07-2012 |
20120155836 | SYSTEM AND METHOD FOR TRANSFERRING DIGITAL CONTENT - A device is provided for use with a digital content provider and a content purchaser. The content provider can provide digital content and a first digital key, wherein the digital content has quantified digital rights associated therewith. The device includes a receiving portion, a security portion, a content database, an interface portion and a transmitting portion. The receiving portion can receive the digital content and the first digital key. The security portion can access the digital content with the first digital key. The content database can store the digital content. The interface portion can offer to the content purchaser the digital content and can enable the content purchaser to purchase the digital content in accordance with purchased quantified digital rights. The security portion can further encrypt the digital content with a digital key such that the content purchaser may use the purchased digital content. | 06-21-2012 |
20120155837 | SECURE STORAGE AND REPLAY OF MEDIA PROGRAMS USING A HARD-PAIRED RECEIVER AND STORAGE DEVICE - A method and apparatus for storing and retrieving program material for subsequent replay is disclosed. The method comprises the steps of receiving a data stream comprising the program material encrypted according to a first (CW) encryption key, decrypting the program material; re-encrypting the program material according to a second encryption key, and storing the re-encrypted material in a media storage device. The program material is played back by retrieving the re-encrypted material from the media storage device and decrypting the re-encrypted program material. In one embodiment, the media storage device also stores the second encryption key which has been further encrypted by a key that is unique to the device used to receive the program material. | 06-21-2012 |
20120183278 | CONTENT REPRODUCING DEVICE AND CONTENT REPRODUCING METHOD - When a secure counter malfunction detection unit | 07-19-2012 |
20120195572 | METHOD AND APPARATUS FOR REPRODUCING COMPRESSED MEDIA CONTENT - A data file reproduction system has a data file supplying apparatus that extracts video data and audio data from a received data file, compresses the extracted video and audio data and produces a compressed data file containing the compressed audio and video data together with meta or navigation data determined from the data file for enabling navigation of the original data file. The compressed data file is then copy-protected. Upon request, the copy-protected compressed data file is communicated to a reproduction apparatus which decompresses the compressed audio and video data of the received copy-protected compressed data file, encodes the decompressed audio and video data and produces a copy-protected reconstituted data file containing the encoded audio and video data together with the meta or navigation data determined from the copy-protected compressed data file, so enabling navigation of the copy-protected reconstituted data file, the same as the original data file. | 08-02-2012 |
20120219269 | CONTENT RECEIVER APPARATUS - A content receiver comprises: an acceptance unit for accepting a designation of a recording medium to which contents are to be output; a license information acquiring unit for acquiring output license information describing the output requirements of the contents; and an output unit for outputting the contents to the designated recording medium. The output license information includes usage time limit information indicating the time limit of using the contents in an output destination. The output unit acquires the usage time limit information from the output license information for the contents, and sets the acquired usage time limit information to a management information storing area in the designated recording medium, thereby managing the time period of using the contents in the recording medium even if the copyright protection of the recording medium, which is an export destination, has a function to manage the time period of using the contents. | 08-30-2012 |
20120275767 | CONTENT CONTROL DEVICE AND CONTENT CONTROL METHOD - A content control device ( | 11-01-2012 |
20130004142 | SYSTEMS AND METHODS FOR DEVICE AUTHENTICATION INCLUDING TIMESTAMP VALIDATION - Systems and methods for authenticating playback devices using timestamp validation in accordance with embodiments of the invention are disclosed. One embodiment includes measuring a time difference between the system clock and a clock on a remote server, retrieving at least one reference time difference from the playback device, where the reference time difference is stored in the playback device, determining whether the system clock of the playback device is valid by comparing the measured time difference to reference time difference, retrieving at least one timestamp when the measured time difference is valid, where each of the at least one timestamps is securely stored by the playback device in response to the occurrence of a predetermined event and is based on the current time of the system clock of the playback device when the predetermined event occurred, and determining whether the system clock is valid based upon the retrieved timestamp. | 01-03-2013 |
20130022335 | Audio visual player apparatus and system and method of content distribution using the same - A system is presented providing content to a plurality of handheld devices (including musical selections). The devices can access a server over the Internet via a WIFI or other similar wireless interconnection and can download songs requested by a user from the server or from other users using, e.g., a P2P protocol. All downloads are governed by applicable DRM rules. Content and playlists may also be pushed by a server from other sources and means including, e.g., podcasting, based on predetermined rules, favorite preferences of users, and other criteria. | 01-24-2013 |
20130101273 | REPRODUCING DEVICE, RECORDING DEVICE, RECORDING MEDIUM, DATA PROCESSING METHOD, DATA PROCESSING PROGRAM, DATA RECORDING METHOD, DATA RECORDING PROGRAM, AND INTEGRATED CIRCUIT - A data generating is device capable of preventing unauthorized extraction of plaintext content between decryption processing and digital watermark embedment processing. A content reproducing device obtains restoration information and, in accordance with the restoration information, selectively performs predetermined restoration processing and processing of embedding device unique information, on content data at a position shown by the restoration information. | 04-25-2013 |
20130114941 | METHOD AND ARRANGEMENT FOR RETRANSMITTING AS WELL AS PROCESSING AND/OR DISPLAYING AND/OR STORING OF SOUND AND/OR PICTURE CONTENTS, AND DEVICE FOR PROCESSING AND/OR DISPLAYING AND/OR STORING OF SOUND AND/OR PICTURE CONTENTS - A special instruction for not encoding a content is incorporated into access authorization data contained in the received signal, so that within a unified system for transmitting and receiving of encoded or non-encoded sound and/or picture contents, it is possible to meet the requirement of public broadcasting and “free-to-air” program providers for a non-encoded processing and/or display and/or storage of freely accessible contents for the end user. The instruction signalizes that the sound and/or picture contents, once received, must be available in the non-encoded form to the end user. The access authorization data remain added to the sound and/or picture contents, even in cases of a cascading, encoded retransmission, or remains logically linked thereto by suitable means, even if transmitted physically separate along with the picture and/or sound contents. During the processing and/or display and/or storage of the picture and/or sound contents retransmitted in the encoded form, the special instruction triggers a decoding of the picture and/or sound contents, at least at the end of the retransmission cascade. | 05-09-2013 |
20130148943 | Enabling/Disabling Display Data Channel Access to Enable/ Disable High-Bandwidth Digital Content Protection - A switcher device comprises a multiplexer coupled in-between at least one input and output cards. The multiplexer detects the presence of an event signal from an activated sink. In response to the detection of the event signal, a processor changes an address of an HDCP receiver from a first address to a second address for enabling the at least one source to authenticate with the input card and enabling the output card to authenticate with the at least one sink for security protocol encryption. In response to the non-detection of the event signal, the processor changes the address of an HDCP receiver from the second address to the first address for disabling the at least one source from initiating a first authentication with the input card, therefore the output card also does not attempt to initiate a second authentication with the at least one sink for security protocol encryption. | 06-13-2013 |
20130315565 | TERMINAL DEVICE, CONTENT RECORDING SYSTEM, TITLE KEY RECORDING METHOD, AND COMPUTER PROGRAM - A terminal device | 11-28-2013 |
20130343725 | CORRELATION-BASED SYSTEM FOR WATERMARKING CONTINUOUS DIGITAL MEDIA - A correlation-based system for watermarking continuous digital media at the system application level. It is a post-compression process for watermarking where no a priori knowledge of the underlying compression algorithm is required. Per each compressed media frame, a current unique digital signature is generated based on the data from the current compressed frame plus the digital signature that has been previously generated. The signature thus generated is then used in conjunction with the next compressed frame to generate the next unique digital signature. All digital signatures are correlated according to the above process until a “reset” signal is issued. A new chain of correlated digital signatures is produced by the system with a pre-determined initial signature. | 12-26-2013 |
20140169762 | VIDEO IMAGE INFORMATION PLAYBACK METHOD AND VIDEO IMAGE INFORMATION PLAYBACK DEVICE - A video image information playback method and a video image information playback device with which user convenience can be obtained at the start of resume playback. The video image information playback method is a method of playback of a recording medium on which virtual-machine-based content has been recorded. During normal playback of the virtual-machine-based content, a program running on a virtual machine and a decryption program that decrypts encrypted virtual-machine-based content perform decryption processing for the virtual-machine-based content while exchanging data. After suspension of playback of the virtual-machine-based content, at the start of resume playback, which is executed following an instruction to resume playback, a proxy program is launched in place of the program that runs on the virtual machine. The proxy program and the decryption program perform playback of the video image of the virtual-machine-based content while exchanging data. | 06-19-2014 |
20150071610 | SYSTEMS AND METHODS FOR CONTENT PLAYBACK AND RECORDING - A method for content playback and recording may include using a computer to obtain media content from a recorded medium. Concurrently with obtaining the media content, the method may include reencrypting the encrypted media content using a secondary encryption key and storing the reencrypted media content in a storage device. | 03-12-2015 |
20150139612 | Media Playback Method And Device - A media playback method and device that relate to the field of computer technologies are provided. The method includes turning on a camera to detect the number of human eyes within a shooting range to determine an initial number of viewers when a user performs a media playback activity, detecting, at a set interval, the number of human eyes to determine a current number of viewers, and encrypting a playback image when the current number of viewers is greater than the initial number of viewers. The method is applicable when a user views information, such as a text, a picture, or a video, on a device such as a mobile phone terminal, a pad device, or a computer. | 05-21-2015 |
20160125917 | SYSTEM, METHOD, AND APPARATUS FOR EMBEDDING PERSONAL VIDEO RECORDING FUNCTIONS AT PICTURE LEVEL - Described herein are system(s), method(s), and apparatus for embedding personal video recorder functions at the picture level. In one embodiment, there is presented a computer readable medium for storing a data structure. The data structure comprises a picture header and at least one command following the picture header. | 05-05-2016 |