Patent application number | Description | Published |
20080235517 | Update System for Cipher System - There is a demand for a device handling information with the use of encryption technology to safely and simply update the encryption schemes. The present invention offers an information security device having a plurality of encryption schemes and handling information safely and reliably, characterized by selecting one of the plurality of encryption schemes as an application encryption scheme and installing a different encryption scheme from the plurality of encryption schemes based on the application encryption scheme. | 09-25-2008 |
20080239909 | Recorder/Reproducer and Content Data Protection System - The recorder/reproducer ( | 10-02-2008 |
20080240673 | PLAYBACK APPARATUS, PLAYBACK METHOD, DISTRIBUTION SERVER, DISTRIBUTION METHOD, RECORDING MEDIUM AND INTEGRATED CIRCUIT - The present invention aims at providing a playback apparatus that performs playback control so as to prevent, in playback of content recorded on a recording medium, a decline of the value of the recording medium and content. | 10-02-2008 |
20080256639 | Verification Method, Information Processing Device, Recording Medium, Verification System, Certification Program, and Verification Program - A virtual machine can be implemented by anyone because the interface and other information necessary for implementation are publicly available. Hence, if virtual machine is implemented maliciously, a program operating thereon can be made to operate maliciously instead of operating legitimately. | 10-16-2008 |
20080260161 | Terminal Device and Copyright Protection System - To provide a terminal device with which, even if content that has undergone conversion is moved to another device, the content before the conversion can be used when moving the content from the device which is a move destination of the content back to a move source of the content. The terminal device stores the content in advance, applies an irreversible conversion which causes a decrease in quality to the content to generate converted content, and writes the converted content to a storage medium. The terminal device encrypts a block in the content using an encryption key to generate an encrypted block, replaces the block in the content with the encrypted block, and writes the encryption key to the storage medium. | 10-23-2008 |
20080310628 | Backup Management Device, Backup Management Method, Computer Program, Recording Medium, Integrated Circuit, and Backup System - 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 | 12-18-2008 |
20090013193 | Circuit Building Device - The present invention provides an apparatus for securely acquiring a circuit configuration information set corresponding to a new cryptosystem without increasing the number of reconfigurable circuits. A content playback apparatus | 01-08-2009 |
20090024849 | Information acquisition device, information acquisition method, and information acquisition program - Conventionally, before reading content from a recording medium, a drive device and a playback device that plays back content perform device authentication, in order to verify whether the playback device is authorized or not. Once the playback device has been verified as authorized, the playback device is permitted to read any content stored on the recording medium. In view of this, a reading device is provided that limits a type of content acquirable by the playback device by permitting the playback device to read content which satisfies a specific condition and prohibiting the playback device to read other content. | 01-22-2009 |
20090055638 | Algorithm update system - A design data storage unit stores a plurality of pieces of design data. A judgment unit | 02-26-2009 |
20090067632 | Circuit updating system - An information processing apparatus is provided with a reconfigurable unit ( | 03-12-2009 |
20090245053 | RECORDING MEDIUM, DATA RECORDING APPARATUS, DATA REPRODUCING APPARATUS AND DATA RECORDING METHOD - Provided is a new-type recordable DVD medium characterized in having medium characteristics not defined in the DVD-R standards and-having compatibility with the DVD-ROM standards. Since information on the new-type recordable DVD medium can be played back by an existing player, even when content data protected by CSS (Content Scrambling System) is recorded on the new-type recordable DVD medium, the recordable DVD medium can be used for content distribution service using a kiosk terminal. | 10-01-2009 |
20100002871 | DEVICE PROVIDED WITH REWRITABLE CIRCUIT, UPDATING SYSTEM, UPDATING METHOD, UPDATING PROGRAM AND INTEGRATED CIRCUIT - A problem to be solved is that a conventional device is not equipped with a unit that enables efficient circuit update taking into consideration an unconfigured area in the reconfigurable circuit in the device. A data using device | 01-07-2010 |
20100034513 | INFORMATION BURYING DEVICE AND DETECTING DEVICE - The present invention provides an information embedding apparatus that is capable of preventing playback stop of a content that has been shot without intention of misuse. The information embedding apparatus comprises: an acquisition unit operable to acquire the content that is played back along the playback time-line; a watermark generating unit operable to generate the watermarks such that values held by the watermarks vary according to a first rule, the first rule showing that the values should vary according to a sequential order on the playback time-line; and an embedding unit operable to embed two or more of the watermarks into the content while keeping the sequential order. | 02-11-2010 |
20100058487 | COPYRIGHT PROTECTION DATA PROCESSING SYSTEM AND REPRODUCTION DEVICE - If playback devices are prohibited from playing back contents recorded in R media, there occurs a problem that it takes more time to manufacture commercial ROM media. Conversely, if playback devices are permitted to play back contents recorded in R media, there occurs a problem that copyrights might be infringed. In view of these, the aim of the present invention is to provide a content protection data processing system and a playback device capable of determine whether to permit playback of a content recorded in a recording medium, based on a medium type of the recording medium and a signature type of a signature attached to a program. This enables both the protection of the copyright of the content and the efficient manufacturing of commercial ROM media. | 03-04-2010 |
20100100969 | COPYRIGHT PROTECTION DATA PROCESSING SYSTEM AND REPRODUCTION DEVICE - If playback devices are prohibited from playing back contents recorded in R media, there occurs a problem that it takes more time to manufacture commercial ROM media. Conversely, if playback devices are permitted to play back contents recorded in R media, there occurs a problem that copyrights might be infringed. In view of these, the aim of the present invention is to provide a content protection data processing system and a playback device capable of determining whether to permit playback of a content recorded in a recording medium, based on a medium type of the recording medium and a signature type of a signature attached to a program, and switching a procedure relating to a digital signature for each signature type of the digital signature. This enables both the protection of the copyright of the content and the efficient manufacturing of commercial ROM media. | 04-22-2010 |
20100118675 | RECORDING AND REPRODUCTION APPARATUS, REPRODUCTION APPARATUS, AND HOST APPARATUS - It is an object of the present invention to provide a universal drive capable of recording and reproducing high-image quality contents on and from various media, such as BD, HD-DVD, DVD and others according to the AACS. The drive ( | 05-13-2010 |
20100122079 | COPYRIGHT PROTECTION SYSTEM, REPRODUCTION APPARATUS AND METHOD - The object of the present invention is to provide a reproduction apparatus that is capable of preventing personal information of users from being transmitted to an external apparatus that is under management of a malicious person. | 05-13-2010 |
20100223477 | CONTENT REPRODUCING DEVICE, CONTENT REPRODUCING METHOD, RECORDING MEDIUM, AND INTEGRATED CIRCUIT - A content playback apparatus (digital watermark detection apparatus) comprises: a detection unit operable to detect a digital watermark from audio data having a plurality of blocks, the audio data being contained in a content which is to be played back along a playback time-line; a detected block storage unit for storing therein information indicating a block in which the digital watermark has been detected by the detection unit; and a playback control unit operable to play back all data contained in the content other than audio data corresponding to the block indicated by the information stored in the detected block storage unit. This makes it possible, even when audio data containing copyright information is inadvertently recorded on a camcorder, to prevent the audio data containing the copyright information from being played back, thereby enabling users to view the content without the influence of playback control. | 09-02-2010 |
20100247077 | CONTENT USE DEVICE AND RECORDING MEDIUM - To provide a content playback device that can use content appropriately by avoiding output of content not permitted to be used according to contract information. A playback control unit | 09-30-2010 |
20100281263 | RECORDING DEVICE, SERVER DEVICE, RECORDING METHOD, RECORDING MEDIUM WITH COMPUTER PROGRAM RECORDED THEREIN AND INTEGRATED CIRCUIT - A recording device for recording one or more of a plurality of subcontents recorded on a first recording medium, onto a second recording medium, the first recording medium having further recorded thereon digest values of the subcontents, and a medium signature generated based on the digest values of the subcontents, the plurality of subcontents constituting one content, the recording device comprising: a subcontent acquisition unit operable to select and acquire one or more of subcontents permitted to be copied; an excluded digest value acquisition unit operable to acquire excluded digest values from the first recording medium, the excluded digest values being digest values of nonselected subcontents; a signature acquisition unit operable to acquire the medium signature from the first recording medium; and a write unit operable to write, onto the second recording medium, (i) the one or more selected subcontents, (ii) the excluded digest values, and (iii) the medium signature. | 11-04-2010 |
20110093706 | ENCRYPTION DEVICE, KEY DISTRIBUTION DEVICE AND KEY DISTRIBUTION SYSTEM - A key distribution system distributes key data for using content to a second encryption device that has been legitimately outsourced processing by a first encryption device. The first encryption device acquires permission information indicating that the first encryption device has permission to use the content, generates certification information by making an irreversible alteration the to permission information, and transmits the permission information and the certification information to the second encryption device. The second encryption device receives the permission information and the certification information, sends them to a key distribution device, and acquires the key data from the key distribution device. The key distribution device receives the permission information and the certification information, judges whether or not the certification information was generated by the by the first encryption device, and if judging in the affirmative, transmits the key data to the second encryption device. | 04-21-2011 |
20110106744 | CONTENT RECOMMENDATION DEVICE, CONTENT RECOMMENDATION SYSTEM, CONTENT RECOMMENDATION METHOD, PROGRAM, AND INTEGRATED CIRCUIT - A content recommendation device and a content recommendation method that recommend appropriate content with appropriate timing are provided. The content recommendation device ( | 05-05-2011 |
20110110517 | CONTENT PLAYBACK DEVICE - To provide a content playback device capable of protecting content according to DRM, when decrypting encrypted content recorded on a recording medium and playing the decrypted content. If key generation information is “00”, a key control unit | 05-12-2011 |
20110119493 | UNAUTHORIZED CONTENTS DETECTION SYSTEM - Processing load on an executing device for conducting playback is high during the playback of contents since the executing device performs verification of the contents validity in parallel with the contents playback, and therefore the executing device has to be equipped with a highly efficient processor. The present invention reduces the processing load involved in the verification by using, for the verification, only a predetermined number of encrypted units selected randomly from multiple encrypted units constituting encrypted contents recorded on the DVD. In addition, the present invention is capable of improving the accuracy of detecting unauthorized contents to some extent by randomly selecting a predetermined number of encrypted units every time the verification is performed. | 05-19-2011 |
20110208967 | MANAGEMENT APPARATUS AND COPYING APPARATUS - The management apparatus 105 | 08-25-2011 |
20110307927 | METHOD, SYSTEM AND APPARATUS FOR MANAGING NETWORK SERVICES - The present invention may be an apparatus, method and/or system related to a playback device, playback media, and a network service utilizing retail information specifying where the playback media was purchased to allow development of media content that changes behavior based on certain conditions (e.g., a priority list based on the retail information specifying where the playback media was purchased), network service availability, and/or user selections. Accordingly, content providers may author or provide a single version of the playback media which may be sold to consumers via different retailers, while simultaneously providing business and/or advertising opportunities specific to the retailer that sold the particular media. | 12-15-2011 |
20110319163 | GAME SYSTEM, GAME EXECUTION APPARATUS, AND PORTABLE STORAGE MEDIUM - A game system in which game software produced to be used in stationary game machines can be used in portable game machines. The game system includes a stationary game machine, a portable game machine, and a memory card connectable to both the stationary and portable game machines. Image data contained in game software produced for the stationary game machine shows an image in the form of free-form surface. The stationary game machine converts the image data to show the image in the form of a polygon according to processing performance of the portable game machine, and stores the converted image data and a game program executable by the portable game machine onto the memory card. The portable game machine executes the game program stored on the memory card, and generates and displays a display image from the image data stored on the memory card. | 12-29-2011 |
20120002520 | PLAYBACK DEVICE, RECORDING MEDIUM, PLAYBACK METHOD AND PROGRAM - A playback device reads a BD-J application from a BD-ROM and runs the BD-J application. The BD-J application causes, by using a socket connection API, the digital copy module of the playback device to execute copying of a protected content for portable terminals to a removable recording medium and setting of a resume playback point on the copied content. The resume playback point is specified by the BD-J application according to playback time information read from the PSR set. | 01-05-2012 |
20120030050 | ELECTRONIC NOTIFICATION DEVICE AND ELECTRONIC NOTIFICATION METHOD - An electronic notification device ( | 02-02-2012 |
20120189281 | PLAYBACK DEVICE, CONTENT DISTRIBUTION SYSTEM, PLAYBACK METHOD, COMPUTER PROGRAM AND INTEGRATED CIRCUIT - To provide a playback device capable of requesting for a content generated in a format compatible with its processing capability and playing back the content, with no need of user input of a user ID or the like. A playback device for playing back contents reads, from an external recording medium, a playback right of a content to play back one or more contents that each have been generated based on a content and in a format compatible with a processing capability different for each playback device, and transmits the playback right and capability information indicating a processing capability of the playback device to a server device. The playback device acquires, from the server device, one of the one or more contents corresponding to the playback right in a format compatible with its processing capability indicated by the capability information, and plays back the acquired content. | 07-26-2012 |
20120284515 | COPYRIGHT PROTECTION DATA PROCESSING SYSTEM AND REPRODUCTION DEVICE - A content protection data processing system and a playback device determine whether to permit playback of a content recorded in a recording medium, based on a type of the recording medium and a signature type of a signature attached to a program. Additionally, the content protection data processing system and the playback device switch a procedure relating to a digital signature for each signature type of the digital signature, which enables both the protection of the copyright of the content and the efficient manufacturing of commercial ROM media. | 11-08-2012 |
20120290834 | KEY DISTRIBUTION DEVICE, TERMINAL DEVICE, AND CONTENT DISTRIBUTION SYSTEM - A terminal device used in a content distribution system including a key distribution device, the terminal device, and a recording medium device, the key distribution device distributing a title key for protecting a content to the recording medium device, the terminal device for controlling writing of the title key on the recording medium device, and the recording medium device recording the content, wherein the key distribution device and the recording medium device comprise a communication unit configured to transfer the title key safely between the key distribution device and the recording medium device without direct involvement by the terminal device, and the terminal device confirms a supported function of the key distribution device and determines whether to permit operations pertaining to the key distribution device in accordance with the supported function. | 11-15-2012 |
20120290846 | UNAUTHORIZED CONTENTS DETECTION SYSTEM - A data processing device for playing back a digital work reduces the processing load involved in verification by using only a predetermined number of encrypted units selected randomly from multiple encrypted units constituting encrypted contents recorded on a DVD. In addition, the data processing device improves the accuracy of detecting unauthorized contents by randomly selecting a predetermined number of encrypted units every time the verification is performed. | 11-15-2012 |
20120311446 | CONTENT RECORDING DEVICE, CONTENT RECORDING METHOD, CONTENT RECORDING PROGRAM, RECORDING MEDIUM, INTEGRATED CIRCUIT AND CONTENT RECORDING AND REPRODUCTION SYSTEM - A content recording device includes: an input/output unit | 12-06-2012 |
20130054971 | TERMINAL DEVICE, VERIFICATION DEVICE, KEY DISTRIBUTION DEVICE, CONTENT PLAYBACK METHOD, KEY DISTRIBUTION METHOD, AND COMPUTER PROGRAM - The terminal device | 02-28-2013 |
20130061053 | RECORDING MEDIUM DEVICE, TERMINAL DEVICE, DISTRIBUTION DEVICE, CONTROL METHOD, AND PROGRAM RECORDING MEDIUM - When the terminal device | 03-07-2013 |
20130077791 | REVOCATION LIST GENERATION DEVICE, REVOCATION LIST GENERATION METHOD, AND CONTENT MANAGEMENT SYSTEM - Provided is a revocation list generation device that can suppress an increase in the amount of data of a revocation list. A revocation list generation device | 03-28-2013 |
20130145481 | RECORDING MEDIUM APPARATUS AND CONTROLLER - A storage unit | 06-06-2013 |
20130236018 | DATA PROTECTION SYSTEM THAT PROTECTS DATA BY ENCRYPTING THE DATA - A data protection system includes terminals, and an encryption device that encrypts distribution data distributed to each terminal. Each terminal corresponds with one node on a lowest level of a tree structure having hierarchies. A data protection system excludes nodes on the lowest level, determines a plurality of combination patterns that include combinations of two or more of all four nodes that are reached one level below the node, decides an individual decryption key for each determined combination pattern, and decides an individual decryption key for each node on the lowest level. The data protection system prescribes nodes that are reached from the node on the lowest level and a terminal to the node on the highest level that is an invalid node. For invalid nodes, the data protection system designates an encryption key that corresponds to the decryption key determined in correspondence with the combination pattern that combines all nodes, excluding invalid nodes, and encrypts distribution data that uses each of the designated encryption keys. | 09-12-2013 |
20130283357 | CONTENT MANAGEMENT SYSTEM, MANAGEMENT SERVER, MEMORY MEDIA DEVICE AND CONTENT MANAGEMENT METHOD - A terminal device | 10-24-2013 |
20130315565 | TERMINAL DEVICE, CONTENT RECORDING SYSTEM, TITLE KEY RECORDING METHOD, AND COMPUTER PROGRAM - A terminal device | 11-28-2013 |
20140095684 | TERMINAL CONTROL METHOD, TERMINAL CONTROL SYSTEM, AND SERVER DEVICE - In a system that centrally manages a terminal device group composed of a plurality of terminal devices in a home, a method allows for: determining an instruction to be transmitted to one of the terminal devices according to an operation status acquired from a different one of the terminal devices; specifying, from among the terminal devices, a terminal device as a transmission destination of the instruction, with use of pieces of connection source information specifying the respective terminal devices in a network, and acquisition times of the pieces of connection source information; and transmitting the instruction to the specified terminal device. Upon receiving the instruction, the specified terminal device performs an operation based on the received instruction. The operation is in coordination with the operation status acquired from the different terminal device. | 04-03-2014 |
20140129842 | UNAUTHORIZED CONTENTS DETECTION SYSTEM - A data processing device for playing back a digital work reduces the processing load involved in verification by using only a predetermined number of encrypted units selected randomly from multiple encrypted units constituting encrypted contents recorded on a DVD. In addition, the data processing device improves the accuracy of detecting unauthorized contents by randomly selecting a predetermined number of encrypted units every time the verification is performed. | 05-08-2014 |
20140289759 | CONTENT PROVIDING SYSTEM AND CONTROL METHOD THEREFOR - A sales device | 09-25-2014 |
20140330833 | DEVICE CLASSIFICATION METHOD, DEVICE CLASSIFICATION SYSTEM, AND DEVICE - A device classification method that includes: receiving a first action performed on a first device in the device group, for classifying the first device as belonging to the coordinated operation group; setting, when the first action is received, each of one or more devices in the device group other than the first device to a classifiable state in which the device is classifiable as belonging to the coordinated operation group; receiving a second action performed on a second device in the device group that is set to the classifiable state, for classifying the second device as belonging to the coordinated operation group; and classifying, when the second action is received, the first device and the second device as belonging to the coordinated operation group. | 11-06-2014 |
20150039100 | CONTROL METHOD - A control method includes: displaying candidate information on a user interface region of a display unit in an information terminal; obtaining, via a network, an operation history of each of apparatuses which indicates an operation performed on the corresponding apparatus; displaying, on the user interface region, a dialog for prompting a user to confirm whether or not to perform predetermined control on a target apparatus which is extracted according to at least one of (a) selected apparatus information (b) selected place information and (c) selected operator information, and has an operation history that satisfies a predetermined condition; generating a control signal for performing the predetermined control on the target apparatus, when the user confirms in the dialog that the predetermined control is to be performed on the target apparatus; and transmitting the control signal to the target apparatus via the network. | 02-05-2015 |
20150066169 | COORDINATION PROCESSING EXECUTION METHOD AND COORDINATION PROCESSING EXECUTION SYSTEM - A user-friendly cooperative process execution method for causing household electric devices that are registered to a server to execute cooperative processes. The server stores correspondence information associating a particular operation to be executed by a particular household electric device with one or more groups each composed of one or more household electric devices, and indicating, for each of the household electric devices in each of the groups, a control signal to be transmitted to the household electric device. The method includes: detecting whether or not the particular operation is executed; selecting one of the groups that is composed of one or more household electric devices that are registered to the server by referring to the correspondence information when the execution of the particular operation is detected; and transmitting the control signal to each of the household electric devices in the selected group. | 03-05-2015 |
20150067528 | CONTROL METHOD - A control method according to the present disclosure is used in a remote control system including apparatuses and an information terminal that controls at least one of the apparatuses via a network. The control method includes: a step (S | 03-05-2015 |