Patent application number | Description | Published |
20080250100 | INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD AND COMPUTER PROGRAM - An information processing apparatus, that obtains pieces of content information relating to content recorded in an information recording medium, includes a content identifier generation unit configured to read a content certificate which is recorded in the recording medium and which corresponds to the content stored in the information recording medium, and generates a content identifier by combining hash values which correspond to the content and which are included in data stored in the content certificate, a data transmitting unit configured to transmit the content identifier generated using the content identifier generation unit to a content information provision server, a data receiving unit configured to receive, from the content information provision server, the pieces of content information relating to the content which is specified on the basis of the content identifier, and a data outputting unit configured to output the pieces of content information received using the data receiving unit. | 10-09-2008 |
20090010437 | INFORMATION PROCESSING DEVICE, INFORMATION RECORDING MEDIUM, INFORMATION PROCESSING METHOD, AND COMPUTER PROGRAM - A data placement configuration which ensures seamless playback of contents having segment portions including multiple different variations of encrypted data is provided. With regard to contents having segment portions configured of multiple different variations of encrypted data to which individual segment keys have been applied, and non-segment portions serving as encrypted data to which a unit key has been applied, the placement of segment data and non-segment portion configuration data is determined such that the maximum jump distance executed at the time of playback processing is equal to or less than a maximum jump distance set beforehand. Data placement has been determined based on seek time, ECC block processing time, sequence key usage time which is key switchover time, and so forth. | 01-08-2009 |
20090041237 | INFORMATION PROCESSING APPARATUS, INFORMATION RECORDING MEDIUM MANUFACTURING APPARATUS, INFORMATION RECORDING MEDIUM, METHOD, AND COMPUTER PROGRAM - To provide a configuration in which a unit classification number corresponding to a content playback path is set based on various units. A unit classification number defining a playback path of content including encrypted data having different variations generated by encrypting a segment portion which forms the content by using a plurality of segment keys and encrypted content generated by encrypting a non-segment portion by a unit key is set based on various units, such as a content management unit and an index. In a CPS unit key file storing key generating information concerning CPS units as content management units, settings of unit classification numbers are indicated. Based on the CPS unit key file, a unit classification number to which content to be played back belongs can be obtained. | 02-12-2009 |
20090094284 | INFORMATION PROCESSING DEVICE, CONTENT USING SYSTEM, INFORMATION PROCESSING METHOD, AND COMPUTER PROGRAM - An information processing device for executing playback processing of a disc recorded content, includes: a data processing unit configured to employ a playlist where content playback order information has been recorded to execute playback of a content; and a local storage unit storing a content; wherein the data processing unit plays a local storage unit stored content instead of a disc recorded content specified with the playlist by content obtaining processing employing mapping information for obtaining a local storage unit stored content as a playback content by employing a disc recorded content information recorded in the playlist. Thus, for example, processing can be performed such that a new commercial content provided by a server is played instead of an old commercial content recorded in a disc. | 04-09-2009 |
20090094321 | CONTENT PROVIDING DEVICE, DATA PROCESSING METHOD, AND COMPUTER PROGRAM - A content providing device serving as a server for executing content providing processing as to a client, includes: a data processing unit for executing content providing processing in response to a content request from the client; wherein the data processing unit receives a disc recorded identifier for identifying a disc or content recorded in the mounted disc of the client, and the identification information of at least either the device identifier of a device on the client side, or the user identifier of a user on the client side, from the client, accumulates the history information of the disc recorded identifier received from the client in a management database in increments of devices or users, and analyzes the user's preference on the client side to provide a content adapted to the user's preference. Thus, content which interests a user or commercial content can be selectively provided to the user. | 04-09-2009 |
20090204572 | INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, AND COMPUTER PROGRAM - A configuration is provided that allows secure data management to be performed on subsequently acquired data associated with content management units. When subsequently acquired data, such as information subsequently generated or downloaded by a user in association with content stored on an information recording medium, is recorded to a hard disk or the like, subsequently-acquired-data search information and access control information are set. This configuration allows a subsequently-acquired-data file to be searched for and be obtained based on the subsequently-acquired-data search information and allows access control for each subsequently-acquired-data file to be performed based on the access control information. The search information and the access control information are also set in shared directories, such as a studio shared directory. | 08-13-2009 |
20090279875 | INFORMATION PROCESSING APPARATUS, INFORMATION RECORDING MEDIUM, INFORMATION PROCESSING METHOD, AND PROGRAM - An information processing apparatus includes a playback controller and a storage unit. The playback controller reads per-disc or per-title identification information in the form of a media ID recorded onto a disc, and then executes content playback selection processing or determines a playback processing mode according to bit information included in the media ID. The storage unit stores a program that causes the processing of the playback controller to be executed. By thus using the media ID, provided services, such as the content authorized for playback, can be modified. | 11-12-2009 |
20090287934 | INFORMATION PROCESSING APPARATUS, INFORMATION RECORDING MEDIUM, INFORMATION PROCESSING METHOD, AND INFORMATION PROCESSING PROGRAM - An information processing apparatus includes: a reproducing unit that reads, from a disc, a content and a content code file storing a content code that includes at least any one of a program or conversion data applied to a content reproducing process, to execute the content reproducing process; and a signature verification unit that verifies a digital signature set for the content code file. The signature verification unit verifies the signature using different pieces of set signature target data between a signature verification process executed in reproducing the content recorded in a ROM disc and a signature verification process executed in reproducing the content recorded in a non-ROM disc other than the ROM disc. The reproducing unit, when signature verification is successfully executed by the signature verification unit, applies the content code stored in the content code file, for which signature verification is successful, to reproduce the content. | 11-19-2009 |
20090324196 | INFORMATION PROCESSINS APPARATUS AND DATA PROCESSING METHOD AND PROGRAM - Disclosed herein is an information processing apparatus including: a first data processing block configured by a virtual machine as a virtual hardware environment for executing a program read from a first recording media recording content and the program for executing data processing; and a second data processing block configured to execute data conversion of the content and copy processing of the converted content onto a second recording media. The first data processing block executes acquisition of copy permission information from a management server by execution of the program and shuts down the virtual machine after completion of the acquisition of the copy permission information. The second data processing block is configured to execute data conversion of content recorded to the first recording media and copy processing of the converted content onto a second recording media after the virtual machine is shut down. | 12-31-2009 |
20090324197 | INFORMATION PROCESSING APAPRATUS AND DATA PROCESSING METHOD AND PROGRAM - An information processing apparatus is provided and includes a first data processing block configured to execute a program read from a first recording media recording content and the program for executing data processing; and a second data processing block configured to execute data conversion on the content recorded to the first recording media and copy processing of the content to a second recording media. The first data processing block makes the second data processing block execute data processing by selectively applying a plurality of application programming interfaces with execution processing defined, transmits data obtained by the data processing to a management server, and gets copy permission information from the management server. The second data processing block starts the data conversion of content recorded to the first recording media and the copy processing of the content to the second recording media under condition of acquisition of the copy permission information. | 12-31-2009 |
20100039915 | INFORMATION PROCESSING DEVICE, DATA PROCESSING METHOD, AND PROGRAM - An information processing device includes: a local memory unit storing data including encrypted content; a memory storing data including key information to be used in a process of reproducing the encrypted content; and a data processing unit selectively reproducing encrypted content stored in a disk or the local memory unit, wherein the data processing unit reads a medium ID from the disk when the content to be reproduced is stored in the disk and reads a medium ID from the memory when the content to be reproduced is stored in the local memory unit. | 02-18-2010 |
20100046915 | INFORMATION PROCESSING APPARATUS, DISK, INFORMATION PROCESSING METHOD, AND PROGRAM - An information processing apparatus includes a data processing unit that verifies data recorded on a disk and reproduces content recorded on the disk if a verification condition is satisfied. The data processing unit verifies the validity of an ID inserter that has recorded, on the disk, an ID corresponding to the disk. The data processing unit acquires an ID inserter certificate containing an apparatus ID of the ID inserter that has recorded the ID corresponding to the disk on the disk and an ID inserter blacklist having apparatus IDs of invoked ID inserters registered therein, determines whether the apparatus ID contained in the ID inserter certificate is registered in the ID inserter blacklist so as to verify the validity of the ID inserter that has recorded the ID corresponding to the disk, and stops reproduction of the content if it is determined that the ID inserter is not valid. | 02-25-2010 |
20100050250 | INFORMATION PROCESSING DEVICE, DATA PROCESSING METHOD, AND PROGRAM - An information processing device includes: a local memory unit for storing data including an encrypted content; a memory for storing data including key information used to reproduce the encrypted content; and a data processing unit performing a process of writing data to the local memory unit and the memory, and a process of reproducing the encrypted content, wherein the data processing unit performs a process of writing encrypted content downloaded from a server or encrypted content copied from a medium to the local memory unit, and performs a process of decoding the encrypted content or a validity authenticating process using the data stored in the local memory unit and the data stored in the memory when reproducing the encrypted content written to the local memory unit. | 02-25-2010 |
20100211556 | INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, AND PROGRAM - An information processing apparatus includes an application execution unit configured to generate data to be recorded onto a medium that records data or reproduce data from the medium, a file system unit configured to manage data recorded on the medium using a file system, and a file conversion unit configured to perform conversion between a first file format processable by the application execution unit and a second file format defined by the file system. The file conversion unit converts a file of the first file format generated by the application execution unit into a file of the second file format having an allowable size defined by the file system and supplies the converted file to the file system unit in the form of a file to be recorded. | 08-19-2010 |
20100246355 | INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, AND PROGRAM - An information processing apparatus includes a data processing unit configured to perform data processing on data read from a data recordable disc. The data processing unit performs a physical mark verification process for verifying whether or not a physical mark that is identification data unique to each of mother discs used when the disc was manufactured has been recorded on the disc, and a signature verification process for obtaining, from the disc, a token containing an electronic signature generated on the basis of a medium ID that is an identifier unique to each disc by a content providing server that provided the recorded content of the disc and for performing signature verification, and reproduces recorded content of the disc under a condition in which the recording of a physical mark in the physical mark verification process has been confirmed and signature verification in the signature verification process holds true. | 09-30-2010 |
20100268944 | INFORMATION PROCESSING DEVICE, DISC, INFORMATION PROCESSING METHOD, AND PROGRAM - A configuration is provided wherein usage restrictions of an application are determined in accordance with timestamps. A certificate revocation list (CRL) in which the revocation information of a content owner who is a providing entity of an application program recorded in a disc is recorded is referred to verify whether or not a content owner identifier recorded in an application certificate is included in the CRL, and in the case that the content owner identifier is included in the CRL, comparison between a timestamp stored in a content certificate and a CRL timestamp is executed, and in the case that the content certificate timestamp has date data equal to or later than the CRL timestamp, utilization processing of the application program is prohibited or restricted. According to the present configuration, a configuration is realized wherein an unrevoked application is not subjected to utilization restriction, and only a revoked application is subjected to utilization restriction. | 10-21-2010 |
20110035423 | REPRODUCING APPARATUS, REPRODUCING METHOD, PROGRAM, PROGRAM STORAGE MEDIUM, DATA DELIVERY SYSTEM, DATA STRUCTURE, AND MANUFACTURING METHOD OF RECORDING MEDIUM - The present invention relates to a reproducing apparatus, a reproducing method, a program, a program storage medium, a data delivery system, a data structure, and a manufacturing method of a recording medium for easily handling a content file recorded on a disk and an update file recorded on a local storage. Downloaded data can be handled with a file having a path name and a file name on the local storage being different from a file having a path name and a file name on a virtual file system based on a path name specified by an src_file_name field of and a path name specified by a dst_file_name field of a manifest ( ) section. The present invention is applicable to reproducing apparatuses. | 02-10-2011 |
20110131665 | INFORMATION PROCESSING APPARATUS, DATA PROCESSING METHOD AND PROGRAM - A configuration is achieved in which content copying between media and content downloading are performed effectively and under strict management. In content copying between media, the identification information (medium ID) of a copying destination medium is obtained using an API for providing a predefined processing, then the obtained medium ID is transmitted to a server to obtain copying permission information from the server, and then content copying is performed under the management of the server. This configuration allows a copying destination medium to be managed, which can eliminate the unauthorized use of the content. Also, the configuration in which content downloading from the server is performed according to, for example, a Java® program allows a ROM disc on which the content is recorded to store the program and to be provided to a user. | 06-02-2011 |
20110149708 | INFORMATION PROCESSING APPARATUS, INFORMATION RECORDING MEDIUM, INFORMATION PROCESSING METHOD, AND COMPUTER PROGRAM - An information processing apparatus includes: a data processing unit that generates data for copy of data recorded on an information recording medium, wherein the information recording medium has a configuration in which data encrypted by applying an individual unit key in unit of a unit, which is segment data corresponding to an individual title, is recorded, and the data processing unit acquires title information recorded in copy processing information acquired from the information recording medium or a management server, acquires a unit key corresponding to the acquired title information, and executes decryption processing in unit of the unit by the acquired unit key to generate the data for copy. | 06-23-2011 |
20110249543 | INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING SYSTEM, INFORMATION PROCESSING METHOD, AND PROGRAM - An information processing apparatus includes: a data processing unit which performs copy processing for recording recorded data of a first medium in a second medium, wherein the data processing unit performs processing for referencing selection information received from a management server, selecting a copy unit having a data form defined as copy permitted data in the selection information from the first medium, and copying the copy unit to the second medium. | 10-13-2011 |
20110249957 | INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING SYSTEM, INFORMATION PROCESSING METHOD, AND PROGRAM - An information processing apparatus includes: a data processing unit which performs copy processing for recording recorded data of a first medium in a second medium, wherein the data processing unit receives three-dimensional image restriction information as copy restriction information of a three-dimensional image from a management server, and when a three-dimensional image is included in copy data from the first medium, performs processing for referencing the three-dimensional image restriction information, determining whether or not the copy processing is permitted, and copying recorded data of the first medium to the second medium under the condition it is determined that the copy processing is permitted. | 10-13-2011 |
20110252058 | INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING SYSTEM, INFORMATION PROCESSING METHOD, AND PROGRAM - An information processing apparatus includes: a data processing unit which performs copy processing for recording recorded data of a first medium in a second medium, wherein the data processing unit receives playlist sequence information which represents the use sequence of a playlist applied to reproduction processing of copy data recorded in the second medium, from a management server and performs processing for generating an attribute file which stores the playlist sequence information and recording the generated attribute file in the second medium. | 10-13-2011 |
20110252323 | INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING SYSTEM, INFORMATION PROCESSING METHOD, AND PROGRAM - An information processing apparatus includes: a communication unit which performs communication with a management server; and a data processing unit which performs copy processing for recording recorded data of a first medium in a second medium, wherein the data processing unit performs processing for displaying a content list having a data entry compatible with a copy unit included in recorded data of the first medium on a display unit on the basis of the received information from the management server, and the data processing unit displays a data entry in which the data form of each copy unit is identifiable in accordance with selection information included in the received information from the management server. | 10-13-2011 |
20110252484 | INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING SYSTEM, INFORMATION PROCESSING METHOD, AND PROGRAM - An information processing apparatus includes: a data processing unit which performs copy processing for recording recorded data of a first medium in a second medium, wherein the data processing unit performs processing for referencing copy restriction information received from a management server, comparing the copy restriction information with apparatus setting information set in a memory of the information processing apparatus, determining whether or not the copy processing is permitted in accordance with the comparison result, and copying recorded data of the first medium to the second medium under the condition it is determined that the copy processing is permitted. | 10-13-2011 |
20110282760 | Server apparatus and information processing system - Provided is a server apparatus including a first payment-information transmitting and receiving unit and a copy-permission-information providing unit. The first payment-information transmitting and receiving unit transmits and receives, via a network with respect to an information processing apparatus capable of reproducing a medium for rental in which a content protected from copying is recorded, information about payment necessary for obtaining a copy permission of a content recorded in the medium. The copy-permission-information providing unit provides information of permitting copying of the content via the network to the information processing apparatus every time when the copy-permission-information providing unit confirms completion of the payment through the transmission and reception of the information about the payment with respect to the information processing apparatus of the user. | 11-17-2011 |
20110320810 | INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD, AND PROGRAM - An information processing device includes: a data processing unit that executes a process of reproducing content recorded in a medium; and a memory storing a content revocation list in which an identifier (ID) of revoked content is recorded, wherein the data processing unit compares a minimum allowable version of a content revocation list recorded in a token which is management data corresponding to content recorded in the medium with a version of a content revocation list acquired from the memory, and when the version of the content revocation list acquired from the memory is an old version lower than the minimum allowable version of the content revocation list recorded in the token, the data processing unit halts determination on revocation of content based on the content revocation list acquired from the memory and reproduction of content. | 12-29-2011 |
20110320811 | INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD, AND PROGRAM - An information processing device includes: a data processing unit that executes a process of reproducing content recorded in a medium, wherein the data processing unit acquires a token from the medium, the token being management data corresponding to content recorded in the medium, compares a server ID recorded in the acquired token with a server ID recorded in a server certificate acquired from a server from which the management data is acquired, and halts reproduction of content when the two server IDs are not identical. | 12-29-2011 |
20110320812 | INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD, AND PROGRAM - An information processing device includes: a memory having a protected area which is a data recording area in which access restriction is set; and a data processing unit that determines accessibility in response to a request for accessing the protected area from an access requesting device, wherein the data processing unit verifies a device certificate received from the access requesting device and determines accessibility to the protected area based on access control information recorded in the device certificate. | 12-29-2011 |
20120008479 | INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, AND PROGRAM - An information processing apparatus includes a data processing unit which executes a copy process for recording data recorded on a first medium onto a second medium, and the data processing unit executes a questionable data discrimination process for discriminating questionable data which is highly likely to be not normally reproduced in a reproduction process in which a reproduction program different from a dedicated reproduction program to the data recorded on the first medium is applied, and executes at least any of processes, which include a questionable data deletion process for deleting the questionable data from a copy target or a warning notification process for notifying a user of a possibility that copied data will not be normally reproduced, according to the discrimination result in the questionable data discrimination process. | 01-12-2012 |
20120008480 | INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD, AND PROGRAM - An information processing device including a data processing section which executes control of a copying process where recording data on a first medium is recorded onto a second medium, and a data conversion section which executes data conversion in the copying process, where the data processing section acquires position information of a packet, which corresponds to an angle change point, based on conversion data generated by the data conversion section and executes an updating process on a reproduction control information file where angle change point position information of data before conversion which is recorded in the reproduction control information file included in copy target data is changed to angle change point position information of data after conversion. | 01-12-2012 |
20120008921 | INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, AND PROGRAM - An information processing apparatus includes a data processing unit which executes control of a copy process in which data recorded on a first medium is recorded on a second medium, and a data conversion unit which executes data conversion in the copy process, the data processing unit determines whether or not data to be copied recorded on the first medium is multi-angle content for which an angle change process is permitted, and when the data to be copied is determined to be multi-angle content, angle change point information is acquired and provided to the data conversion unit, and the data conversion unit creates converted data for which decoding is possible without referring to at least a preceding picture when the picture on an angle change point location is reproduced as a reproduction start point. | 01-12-2012 |
20120030479 | STORAGE APPARATUS, HOST APPARATUS, AND STORAGE SYSTEM - Disclosed herein is a storage apparatus including: a first storage block configured to record and hold encrypted content data and output the encrypted content data on an on-demand basis; a second storage block configured to record and hold a confidential title key; a title stream key generation block configured to generate a title stream key corresponding to a subject of encryption of the content data by use of the held confidential title key; and a communication block configured to transmit the generated title stream key with confidentiality thereof held. | 02-02-2012 |
20120033944 | INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD, AND PROGRAM - Disclosed is an information processing device including: a communication section that performs data communication; and a data processing section that performs a process of transmitting reproduction data and reproduction control information to a client via the communication section and reproducing the reproduction data based on the reproduction control information in the client, wherein the data processing section performs a process of converting the reproduction control information into a data format analyzable by the client and transmitting the converted reproduction control information to the client. | 02-09-2012 |
20120036350 | INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, AND PROGRAM - An information processing apparatus includes a data processing unit which generates content to be distributed to a client; and a communication unit which sends the content generated by the data processing unit, wherein the data processing unit combines a plurality of watermarking record blocks, each of which is obtained by embedding watermarking data into a block as section data of the content, generates content in which different watermarking data sequences are set in units of distribution processing with respect to the clients, and sends the generated content to the clients through the communication unit. | 02-09-2012 |
20120045062 | INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD, AND PROGRAM - An information processing device including: a data processing unit that generates an encryption key of content; and a communication unit that transmits an encryption key generated by the data processing unit, wherein the data processing unit generates, as the encryption key, individual keys that are different for each new content recording processing on a recording medium in a content recording device, and transmits the individual keys through the communication unit. | 02-23-2012 |
20120047360 | INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD, AND PROGRAM - An information processing device including: a data processing unit that generates content for transmitting to a client; and a communication unit that transmits the generated content of the data processing unit, wherein the data processing unit generates, based on basic encrypted content having a plurality of units that each includes a SEED that is data for encryption key generation and a block that is encrypted data that is encrypted by an encryption key generated using the SEED, each data of (a) converted encrypted content on which conversion processing to replace the SEED with dummy data or to delete the SEED is performed, and (b) encrypted SEED that is the SEED encrypted by content transmission processing or by individual keys that are different by units of users at a transmission destination, and transmits the generated converted encrypted content and encrypted SEED as data provided to the client via the communication unit. | 02-23-2012 |
20120070031 | INFORMATION PROCESSOR, INFORMATION PROCESSING METHOD, AND PROGRAM - An information processor includes a data processing portion which generates content for delivery to a client. The data processing portion generates and provides a sub-image in which identification information of a content delivery client is recorded in image data formed only of a partial area of image data and a main image in which the image signal of the sub-image area is deleted or substituted with a dummy signal to the client, generates management information in which the identification information recorded in the sub-image is associated with client information of the content provision destination, and records the management information in a storage portion. | 03-22-2012 |
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 |
20120089843 | INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, AND PROGRAM - An information processing apparatus includes: a data processor which creates content to be distributed to a client, wherein the data processor executes processing of creating content provided to a client by selecting data in units of segments, which are division data of content, from a plurality of additional information recorded content items obtained by recording different additional information items on original content, selects different segment columns in units of content distribution clients in the processing of creating content provided to a client, and creates management information in which client information for identifying a client of a content distribution destination and segment column information indicating a segment selection state of the content provided to a client, which is provided to a corresponding client, are matched with each other and records the management information in a storage unit. | 04-12-2012 |
20120102102 | CONTENT PROVIDING DEVICE, DATA PROCESSING METHOD, AND COMPUTER PROGRAM - A content providing device serving as a server for executing content providing processing as to a client, includes: a data processing unit for executing content providing processing in response to a content request from the client; wherein the data processing unit receives a disc recorded identifier for identifying a disc or content recorded in the mounted disc of the client, and the identification information of at least either the device identifier of a device on the client side, or the user identifier of a user on the client side, from the client, accumulates the history information of the disc recorded identifier received from the client in a management database in increments of devices or users, and analyzes the user's preference on the client side to provide a content adapted to the user's preference. Thus, content which interests a user or commercial content can be selectively provided to the user. | 04-26-2012 |
20120159196 | INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, AND PROGRAM - A content providing system includes: a server which provides to a host apparatus a first encrypted content including an encrypted area having applied thereto a replacement key; a host apparatus which receives the first encrypted content and replacement key application area information indicating the encrypted area having applied thereto the replacement key from the server; and a data storage device which receives the replacement key from the server and an individual key set in terms of content distribution processing from the server and performs key replacement processing for changing the replacement key application area of the first encrypted content to an encrypted area by the individual key to store a second encrypted content after the key replacement processing in a data recording area. | 06-21-2012 |
20120173799 | DATA STORAGE APPARATUS, INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, AND PROGRAM - An information storage apparatus that includes a memory unit, a first controller that reads data from the memory unit, and a second controller included in the memory unit that reads a first identification and outputs the first identification in response to an external instruction, wherein the first identification may only be read by the second controller. | 07-05-2012 |
20120210128 | INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD AND PROGRAM - An information processing apparatus includes: a data processing unit generates contents to be provided to a client, extracts plural blocks as content configuration data from an original content, sets patterns including block rows of the extracted blocks, generates encrypted blocks applying block keys which are different according to respective patterns and respective blocks, selects encrypted blocks from the patterns at random in each content delivery, generates individually-encrypted portions by encrypting part of configuration data of the selected blocks by applying an individual key corresponding to a client as a content delivery destination, and generates encrypted content including encrypted blocks on which encryption processing by the block keys is performed and individually-encrypted portions on which encryption processing by the individual key is performed as the content to be provided to the client. | 08-16-2012 |
20120272070 | INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING SYSTEM AND INFORMATION PROCESSING METHOD, AND PROGRAM - An apparatus and method configured to identify the type of a content to be copied and perform a copying process in a sequence according to the result of identification is provided. In an information processing apparatus configured to perform the copying process for copying recorded data in an information recording medium to other media or the like, the type of the data recorded in the recording medium of a copy source is identified. More specifically, whether the type of the content to be copied is either a reproduction-pass-specific content which sets a reproduction pass corresponding to the information processing apparatus and causes the information processing apparatus to execute the reproduction according to the reproduction pass, or a content-code-applied content which verifies the reproduction sequence to be executed in the reproducing apparatus and verifies whether the reproduction process is executed according to the correct reproduction sequence is discriminated, and an optimal sequence is applied on the basis of the result of discrimination, whereby the copying process is executed. In this configuration, a reliable copying process on the basis of the optimal process according to various data types is realized. | 10-25-2012 |
20130039485 | INFORMATION PROCESSING SYSTEM, REPRODUCING DEVICE, INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD, AND PROGRAM - An information processing system includes a medium storing contents for reproduction, and a reproducing device to reproduce the contents. The reproducing device obtains a device certificate and transmits the device certificate to the medium. The device certificate includes the reproducing device's type information, and the medium encodes a media ID for identifying the medium according to an encoding algorithm selected according to the reproducing device's type information. The encoded media ID is transmitted to the reproducing device, which decodes the encoded media ID according to a decoding algorithm corresponding to the device type of the reproducing device, and decrypts and reproduces data to which the obtained media ID is applied. | 02-14-2013 |
20130039490 | INFORMATION PROCESSING APPARATUS, INFORMATION RECORDING MEDIUM, INFORMATION PROCESSING METHOD, AND COMPUTER PROGRAM - A configuration in which use management for each piece of content, which is divided in units, can be performed strictly and efficiently is provided. CPS units such that content stored on an information recording medium is divided into units are set, a unit key is assigned to each CPS unit, and data forming each unit is encrypted and recorded. For reproduction, a unit key is generated, and data processing using the unit key is performed. As information for generating the unit key, copy/play control information (CCI) that is set so as to correspond to the CPS unit and a content hash that is a hash value based on data forming the CPS unit are used. With this configuration, tampering of CCI and data forming the CPS unit can be prevented, and authorized content use can be realized. | 02-14-2013 |
20130042102 | INFORMATION PROCESSING DEVICE AND INFORMATION PROCESSING METHOD, AND PROGRAM - An information processing system including a medium where a content to be played is stored; and a playing apparatus for playing contents stored in the medium; with the playing apparatus being configured to discriminate the content type of a content selected as an object to be played, to selectively obtain a device certificate correlated with the discriminated content type from a storage unit, and to transmit the selectively obtained device certificate to the medium; with the device certificate being a device certificate for content types in which content type information where the device certificate is available is recorded; and with the medium determining whether or not an encryption key with reading being requested from the playing apparatus is an encryption key for decrypting an encrypted content matching an available content type recorded in the device certificate, and permitting readout of the encryption key only in the case of matching. | 02-14-2013 |
20130042114 | INFORMATION PROCESSING DEVICE AND INFORMATION PROCESSING METHOD, AND PROGRAM - An information processing system including a medium where a content to be played is stored; and a playing apparatus for playing a content stored in the medium; with the playing apparatus being configured to selectively activate a playing program according to a content type to be played, to obtain a device certificate correlated with the playing program from storage by executing the playing program, and to transmit the obtained device certificate to the medium; with the device certificate being a device certificate for content types in which content type information where the device certificate is available is recorded; and with the medium determining whether or not an encryption key with reading being requested from the playing apparatus is an encryption key for decrypting an encrypted content matching an available content type recorded in the device certificate, and permitting readout of the encryption key only in the case of matching. | 02-14-2013 |
20140115342 | INFORMATION PROCESSING APPARATUS, INFORMATION STORAGE MEDIUM, CONTENT MANAGEMENT SYSTEM, DATA PROCESSING METHOD, AND COMPUTER PROGRAM - A configuration for achieving efficient content verification processing based on hash values is provided. Hash values of hash units set as segmented data of a content stored on an information storage medium are recorded in a content hash table and are stored on the information storage medium together with the content. An information processing apparatus for executing content playback executes hash-value comparison processing based on one or more randomly selected hash values. Regardless of the data amount of content, the configuration can perform hash-value determination and comparison processing based on hash units having a small amount of data, so that user equipment for executing content playback can perform efficient content verification. | 04-24-2014 |
20150046719 | INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD, AND PROGRAM - An information processing device including: a data processing unit that generates an encryption key of content; and a communication unit that transmits an encryption key generated by the data processing unit, wherein the data processing unit generates, as the encryption key, individual keys that are different for each new content recording prates sing on a recording medium in a content recording device, and transmits the individual keys through the communication unit. | 02-12-2015 |