BRPI0603676B1 - information processing device for performing high speed video playback, non-transient information recording medium, data structure, information recording medium manufacturing device, information processing method, method for manufacturing information recording medium , and, computer readable media - Google Patents

Abstract

"information processing device, information recording medium, data structure, information recording medium manufacturing device, information processing method, and, computer program". An information processing device includes: a modified data generation unit for generating modified data obtained by modifying content configuration data; an adjustment table generator unit for generating an adjustment table in which transformation data serving as an object to be replaced by the modified data is recorded; and a data recorder unit for recording content including modified data and setting table in an information recording medium; where the modified data generation unit is configured to perform data modification processing with the encoded mpeg data configuration units included in a ts package constituting content as data modification processing units.

Description

“INFORMATION PROCESSING DEVICE TO PERFORM HIGH SPEED VIDEO REPRODUCTION, NON-TRANSITIONAL INFORMATION RECORDING MEDIA, DATA STRUCTURE, INFORMATION RECORDING MANUFACTURING DEVICE, INFORMATION PROCESSING METHOD, METHOD OF MAKING METHOD OF MAKING INFORMATION, AND, MEDIA LEGIBLE BY COMPUTER ”CROSS-REFERENCES TO RELATED REQUESTS

The present case claims the priority benefit of provisional patent application US 60 / 712,389, filed on August 31, 2005.

The present invention contains a matter related to Japanese patent application JP 2005-252,860, filed at the Japanese Patent Office on August 31, 2005, and Japanese patent application JP 2006-154,792, filed at the Japanese Patent Office on June 2 2006, the contents of which are fully incorporated by reference.

BACKGROUND OF THE INVENTION

1. Technical field

The invention relates to an information processing device, an information recording device manufacturing device, a non-transitory information recording medium, its respective methods and computer-readable media. In more detail, the invention relates to an information processing device, an information recording device manufacturing device, a non-transitory information recording medium, its methods, and even computer-readable media, where content is used. Unauthorized content is eliminated by subjecting various types of content requiring management of content usage to data transformation processing, thereby performing strict content usage management.

2. Description of the prior art

Various types of software data, such as audio data, such as

Petition 870180140775, of 10/11/2018, p. 15/274 music etc., image data such as cinema films etc. game programs, various types of application programs etc. (hereinafter referred to as “content”) can be stored as digital data on recording media, for example, a Blu disc -ray (registered trademark) employing blue laser, or DVD (digital versatile disc). MD (mini disc), and CD (compact disc). In particular, Blu-ray (trademark) discs employing blue lasers are high-density discs capable of recording, and can record massive amounts of image content etc. as high-quality image data.

Digital content is stored in these various types of information recording media (recording media) to be provided to users. Users reproduce and use the content on a playback device such as a personal computer (PC), disc player etc. owned by the user.

Generally, the right to distribute etc. for many content such as music data, image data etc. is retained by its creator or seller. Consequently, when distributing content, an arrangement is usually implemented, where certain restrictions on use are established, that is, the use of the content is only allowed to authorized users, and unauthorized reproduction etc. is prevented.

With digital recording devices and recording, recording and reproduction media they can be repeated without deterioration in image or audio, for example, and problems occur such as distribution of illegally copied content over the Internet, distribution of so-called fraudulent editing discs of copied content. CD-Rs etc, use of copied content stored on PC hard drives etc, in proliferation.

Large-capacity recording media, such as DVDs, blue laser recording media developed in recent years and the like, are capable of recording large amounts of data, for example, one to one

Petition 870180140775, of 10/11/2018, p. 16/274 several cinema films, as digital information on a single disc. The ability to record image and similar information as digital information makes preventing unauthorized copies to protect copyright owners an even more important issue. Several techniques have been implemented, such as the recent one to prevent unauthorized copying to digital recording devices and recording media, in order to prevent such unauthorized copies of digital data.

SUMMARY OF THE INVENTION

One technique for preventing unauthorized copying of content and protecting the copyright owner is cryptographic processing of the content. However, even with encrypted content, there is a problem that, if the secret password is leaked, content that has been unauthorized decrypted will be leaked. The arrangement described in the Japanese unexamined patent application publication 11-45,508 is a related technique, in which an arrangement is revealed to solve such problems, that is, an arrangement in which the unauthorized reproduction of content is prevented by re-recording a part of the content with fictitious data, as revealed in it.

However, even if the content is replaced with dummy data, the position of adjustment or configuration of the dummy data sometimes makes it possible for the contents of a content to be recognized without greatly affecting the content. That is, the reproduction of the content can be effectively prevented by the execution of processing that includes the adjustment position of the fictitious data, modification of the mode in relation to the content, etc.

In addition, in the case of submitting the content to modification by inserting violated or similar data, the modified content needs to be replaced with normal content data when the content is reproduced. For example, in the case of performing high speed playback, it is difficult to perform such data replacement, resulting in a problem where

Petition 870180140775, of 10/11/2018, p. 17/274 high speed playback cannot be performed.

The present invention was developed in light of such a situation. It has been found to be desirable to make an arrangement in which the content can be effectively destroyed with data modification, to make an arrangement in which the content can be effectively prevented from unauthorized use, and, in addition to providing an information processing device, a device manufacturing of information recording medium, information recording medium, and its methods, and also a computer program, where, in high speed video reproduction, high quality reproduction can be performed due to the possibility of reproduction without using chunks of modified data.

An information processing device in accordance with an embodiment of the present invention includes: a modified data generating unit for generating modified data obtained by modifying content configuration data; a setting table generating unit serving as an object to be replaced by the modified data is recorded; and a data recording unit for recording content including the modified data, and the setting table on an information recording medium; where the modified data recording unit is configured to perform data modification processing with the encoded MPEG data configuration units included in a TS package constituting content as data modification processing units.

In addition, the modified data recording unit can be configured to perform data modification processing in which a slice within a DCT block included in the encoded MPEG data is established as data modification processing units to generate violated data serving as content tampered with, and the data recording unit can be configured to perform processing to record

Petition 870180140775, of 10/11/2018, p. 18/274 content including data breached in an information recording medium.

The modified data recording unit can be configured to perform data modification processing in which an arithmetic code block established in an encoded MPEG data image is set up as data modification processing units to generate tampered data serving as tampered content, and the data recording unit can be configured to perform processing to record content including the breached data on an information recording medium.

In addition, the modified data recording unit can be configured to perform data modification processing in which an image I included in encoded MPEG data is selected as an image to be subjected to data modification processing to generate violated data serving as breached content, and the data recording unit can be configured to perform processing to record content including the breached data on an information recording medium.

In addition, the adjustment table recording unit can be configured to generate an adjustment table in which identifier adjustment transformation data enabling the identification information of a content playback device or content playback application to be analyzed is recorded. .

In addition, the setting table recording unit can be configured to perform data modification processing, in which identifier adjustment transformation data, enabling the identification information of a content playback device or content playback application. analyzed, are established with a macro block within a DCT block, included in the MPEG data

Petition 870180140775, of 10/11/2018, p. 19/274 modified as data modification processing units, to generate the transformation data adjusted by identifier.

In addition, the adjustment table generating unit can be configured to perform data modification processing in which the transformation data adjusted by identifier, allowing the identification information of a device or content playback application to be analyzed, are established with a B image included in the MPEG data, encoded as data modification processing units, to generate the transformation data adjusted by identifier.

In addition, the modified data recording unit can be configured to select from multiple images I included in the encoded MPEG data: an image I serving as modified data; and an image I serving as unmodified data, respectively, and submitting only the selected image I as modified data for data modification processing to generate violated data.

In addition, the information processing device may also include a reproduction management information generation unit to perform generation processing of an EP table or map, enabling the positional information of an unmodified I image to be acquired, with the data recording unit. data being configured to perform processing to record a table or EP map allowing the position information of an unmodified I image generated by the reproduction management information generation unit to be acquired in an information recording medium.

In addition, the modified data recording unit can be configured to perform processing to generate data violated by adjusting an I image serving as unmodified data for each predetermined (N) cycle of multiple I images included in the encoded MPEG data.

Petition 870180140775, of 10/11/2018, p. 20/274

In addition, the modified data recording unit can be configured to perform data modification processing in which all the I images included in the encoded MPEG data are selected as unmodified data, and only one B image or P image is selected as one. image to be subjected to modification processing to generate violated data.

A means of recording information according to another embodiment of the present invention, in which content is recorded, stores: a content in which partial configuration data of the content is set as modified data; an adjustment table of recording adjustment position information with respect to transformation data serving as an object to be replaced by the modified data, and the content of the transformation data; where the modified data is data generated by performing data modification processing as for one or more image data other than the specified unmodified I image of the multiple I images included in the encoded MPEG data.

In addition, the modified data may include data breached preventing normal reproduction, with the data breached being modified data generated with data modification processing in which the encoded MPEG data configuration units included in a TS package constituting content are set up as data units. data modification processing.

In addition, the modified data may include violated data preventing normal reproduction with the violated data being modified data generated with data modification processing in which a slice within a DCT block included in encoded MPEG data is set as processing units.

In addition, modified data may include data breached preventing normal playback with the data breached being data

Petition 870180140775, of 10/11/2018, p. 21/274 modified generated with data modification processing in which an arithmetic code block fitted to an image of encoded MPEG data is established as processing units.

In addition, modified data may include violated data preventing normal reproduction, with the violated data being modified data generated with data modification processing in which an image I included in the encoded MPEG data is selected as an image to undergo modification processing. of data.

In addition, the adjustment table can be an adjustment table in which transformation data established with an identifier allowing the identification information of a content playback device or content playback application to be analyzed are recorded.

In addition, the transformation data established with identifier can be data generated with data modification processing in which a macro block within a DCT block included in encoded MPEG data is set as a processing unit.

In addition, the transformation data established with identifier is data generated with data modification processing in which an image B included in the encoded MPEG data is adjusted as a processing unit.

In addition, the means of recording information can also include a table or EP map enabling the position information of the unmodified image I to be acquired as recorded information.

In addition, the stored content of the information recording medium may be content in which an unmodified I image is established for each predetermined cycle (N) of multiple I images included in the encoded MPEG data.

In addition, the information recording medium may have an EP map with multiple entries corresponding to a packet number

Petition 870180140775, of 10/11/2018, p. 22/274 as address information and a presentation time stamp (PTS), with the stored content being content in which an unmodified I image is established as the entry for each predetermined cycle of the entries recorded on the EP map.

In addition, the content stored in the information recording medium is content in which all the images included in the encoded MPEG data are selected as unmodified I images.

A data structure according to another embodiment of the present invention includes: a content in which partial configuration data for a content is set as modified data; an adjustment table recording adjustment position information with respect to the transformation data serving as an object to be replaced by modified data, and the content of the transformation data; where the modified data is data generated by performing data modification processing as one or more image data other than the specified unmodified I image of the multiple I images included in the encoded MPEG data.

In addition, the modified data can be modified data generated with data modification processing in which the encoded MPEG data configuration units included in a TS package constituting content are set up as data modification processing units.

In addition, the modified data can be modified data generated with data modification processing in which a slice within a DCT block included in the encoded MPEG data is fitted as a processing unit.

In addition, the modified data can be modified data generated with data modification processing in which an arithmetic code block fitted to an MPEG data image

Petition 870180140775, of 10/11/2018, p. 23/274 coded is established as processing units.

In addition, the modified data can be modified data generated with data modification processing in which an image I included in the encoded MPEG data is selected as an image to be subjected to data modification processing.

In addition, the adjustment table can be an adjustment table in which transformation data established with an identifier allowing the identification information of a content playback device or content playback application to be analyzed are recorded.

In addition, the transformation data established with identifier can be data generated with data modification processing in which a macro block within a DCT block included in encoded MPEG data is set as a processing unit.

In addition, the transformation data established with identifier can be data generated with data modification processing in which an image B included in the encoded MPEG data is adjusted as a processing unit.

In addition, an EP table or map enabling the position information of the unmodified I image to be acquired can be included.

In addition, the content can be content in which an unmodified I image is adjusted for each predetermined cycle (N) of multiple I images included in the encoded MPEG data.

In addition, the data structure may have an EP map with multiple entries corresponding to a package number as address information and a presentation time stamp (PTS), with the stored content being content in which an unmodified I image. it is established as the entry for each predetermined cycle of the entries registered in the EP map.

Petition 870180140775, of 10/11/2018, p. 24/274

In addition, the content stored in the information recording medium is content in which all the images included in the encoded MPEG data are selected as unmodified I images.

A device for manufacturing information recording medium according to another embodiment of the present invention includes: a modified data recording unit for generating modified data obtained by modifying content configuration data; an adjustment table generating unit for generating an adjustment table in which transformation data serving as an object to be replaced by the modified data is recorded; and a data recording unit for recording content including the modified data, and the setting table on an information recording medium; where the modified data recording unit is configured to perform data modification processing with the encoded MPEG data configuration units included in a TS package constituting content as data modification processing units.

An information processing device, according to another embodiment of the present invention, for performing reproduction processing of content subjected to MPEG encoding processing of which part of the content configuration data is established as modified data, includes: a unmodified I image selection unit to select an I image serving as unmodified content data; and a decoding and product processing unit for performing decoding and product processing of the unmodified I image selected by the unmodified I image selection unit.

In addition, the unmodified I image selection unit can be configured to perform processing to obtain the position of an I image serving as unmodified data by applying

Petition 870180140775, of 10/11/2018, p. 25/274 minus one of a table and EP map that is established corresponding to a content to be reproduced.

In addition, the unmodified I image selection unit can be configured to perform processing to select an I image for each predetermined cycle and then select an I image serving as unmodified data.

In addition, the unmodified I image selection unit can be configured to obtain cycle information equivalent to the GOP interval or I images consisting of unmodified data as cycle information from an EP map record table, and obtaining the information from the adjusted image I as unmodified data from an EP map based on the cycle information.

In addition, the unmodified I image selection unit can be configured to perform processing to select an I image serving as unmodified data based on the unchanging canned cycle information for each content, which is information equivalent to the GOP range or I images made up of unmodified data.

In addition, the unmodified I image selection unit can be configured to perform processing to select an I image serving as unmodified data based on the cycle information corresponding to a content, which is adjusted according to a content, and it is cycle information equivalent to the range of GOPs or images I made up of unmodified data.

A method of processing information according to another embodiment of the present invention can include the steps of: generating modified data to generate modified data obtained by modifying content configuration data; generate adjustment table to generate an adjustment table in which the transformation data serving as an object to be replaced by modified data are recorded; and

Petition 870180140775, of 10/11/2018, p. 26/274 recording data to record content including the modified data, and the setting table in an information recording medium; where the modified data generation performs data modification processing with the encoded MPEG data configuration units included in a TS package constituting content as data modification processing units.

In addition, the generation of modified data can be a step to perform data modification processing in which a slice within a DCT block included in the encoded MPEG data is set up as data modification processing units to generate violated data serving as content breached, and recording data is a step to perform processing to record content including the breached data in an information recording medium.

In addition, the generation of modified data can be a data modification processing step in which an arithmetic code block fitted to an image of encoded MPEG data is adjusted as units in this way, to generate violated data serving as violated content, and recording data is a step to perform processing to record content including data breached in an information recording medium.

In addition, the generation of modified data can be a step to perform data modification processing in which an image I included in the encoded MPEG data is selected as an image to be subjected to data modification processing to generate violated data serving as content breached, and recording data is a step to perform processing to record content including the breached data in an information recording medium.

In addition, the generation of an adjustment table can be a step to generate an adjustment table in which the transformation data

Petition 870180140775, of 10/11/2018, p. 27/274 established by identifier, allowing the identification information of a content reproduction device or content reproduction application to be analyzed, are recorded.

In addition, the setting table generation can be a step to perform data modification processing in which transformation data established with an identifier allowing the identification information of a content playback device or content playback application to be analyzed are adjusted. with a macro block within a DCT block in the MPEG data encoded as data modification processing units to generate the transformation data established with identifier.

In addition, the setting table generation can be a step to perform data modification processing in which transformation data established with an identifier allowing the identification information of a content playback device or content playback application to be analyzed are adjusted. with a B image included in the MPEG data encoded as data modification processing units to generate the transformation data established with identifier.

In addition, the generation of modified data can be a step to select from multiple images I included in the encoded MPEG data: an image I serving as modified data; and an image I serving as unmodified data, respectively, and submitting only the selected image I as modified data to data modification processing to generate violated data.

In addition, the information processing method may also include the step of generating reproduction management information to perform processing of the generation of an EP table or map allowing the position information of an unmodified I image to be

Petition 870180140775, of 10/11/2018, p. 28/274 acquired; where the data recording performs processing to record a table or EP map enabling the position information of an unmodified I image generated in the generation of radio frequency identification to be acquired in an information recording medium.

In addition, the modified data generation can perform processing to generate violated data by adjusting an I image serving as unmodified data for each predetermined (N) cycle of multiple I images included in encoded MPEG data.

In addition, the modified data generation can perform data modification processing in which images I included in the encoded MPEG data are selected as unmodified data, and only one B image or P image is selected as an image to be processed modification to generate modified data.

In addition, the selection process for the nonmodified I image can acquire an EP map with multiple entries corresponding to the package number as address information and a presentation time stake (PTS), and includes processing to select an entry for each predetermined cycle of the entries registered on the EP map.

A method of manufacturing information recording medium according to another embodiment of the present invention can include the steps of: generating modified data to generate modified data obtained by modifying content configuration data; generate adjustment table to generate an adjustment table in which transformation data serving as an object to be replaced by the modified data is recorded; and recording data for recording content including the modified data, and the setting table in an information recording medium; where the generation of modified data is a step to perform data modification processing with the configuration units of

Petition 870180140775, of 10/11/2018, p. 29/274 encoded MPEG data included in a TS package constituting content as modification processing units.

An information processing method, according to another embodiment of the present invention, for performing playback processing of content subjected to MPEG encoding processing of which part of the content configuration data is set as modified data, includes the steps from: selecting unmodified image i for selection of an image I serving as unmodified content data; and decoding product processing to perform decoding and product processing of the unmodified I image selected by the unmodified I image selector unit.

In addition, selecting the unmodified I image can be a step to perform processing to obtain the position of an I image serving as unmodified data by applying at least one of an EP table and map that is established corresponding to a content to be played.

In addition, selecting the unmodified I image can be a step to perform processing to select an I image for each predetermined cycle and then select an I image serving as unmodified data.

In addition, selecting the unmodified image I can be processed to obtain cycle information equivalent to the range of GOPs or images I consisting of unmodified data, and obtaining the information from the image I established as unmodified data from an EP map. based on cycle information.

In addition, selecting the unmodified I image can be processed to select an I image serving as unmodified data based on the unchanging canned cycle information for each

Petition 870180140775, of 10/11/2018, p. 30/274 content, which is cycle information equivalent to the range of GOPs or images I consisting of unmodified data.

In addition, selecting the unmodified I image can be processed to select an I image serving as unmodified data based on the cycle information corresponding to a content, which is established according to a content, and is cycle information equivalent to the intervals of GOPs or images I made up of unmodified data.

A computer program that causes an information processing device to perform processing to record content on an information recording medium, according to another embodiment of the present invention, includes code for the steps of: generating modified data to generate modified data obtained by modifying content configuration data; generate adjustment table to generate an adjustment table in which transformation data serving as an object to be replaced by the modified data are recorded; and recording data for recording content including the modified data, and the setting table in an information recording medium; where the generation of modified data with the encoded MPEG data configuration units included in a TS package constituting content as modification processing units.

A computer program that causes an information processing device to perform content reproduction processing subjected to MPEG encoding processing of which part of the content configuration data is established as modified data, according to another embodiment of the present invention, includes code for the steps of: selecting unmodified image I for selecting an image I serving as unmodified content data; and decode product processing to perform product processing

Petition 870180140775, of 10/11/2018, p. 31/274 product decoding and processing of the unmodified I image selected by the unmodified I image selector unit.

Note that the computer program according to the present invention can be, for example, a computer program capable of providing a computer system capable of executing various types of program codes, through storage media or communication media capable of provide in a computer-readable format, for example, recording media such as CDs, FDs, Mos etc., or media such as a network or similar. Providing such a program in a computer-readable format performs the processing corresponding to the program on the computer system.

Other objectives, characteristics and advantages of the present invention will become apparent from a more detailed description by means of the above described arrangements of the present invention and accompanying drawings. Note that the term “system”, as used in this report, means a logical arrangement of multiple devices, and is not restricted to an arrangement in which all first and second component devices are in the same housing.

According to the configuration of an example of the present invention, an arrangement can be made in which content, including modified data other than authorized content configuration data is recorded on an information recording medium and, in addition to an adjustment table recording data transformation data that is authorized content configuration data serving as an object to be replaced by the modified data, and the positional adjustment information relating to the data content and transformation data is stored in the information recording medium, and also an arrangement can if done in which, when making a content provider, the content configuration data are subjected to substitution processing by the transformation data,

Petition 870180140775, of 10/11/2018, p. 32/274 according to the setting table recorded in the information recording medium, so that, even in the event of an encryption password leak related to the encrypted content in the information recording medium, the device that cannot obtain the data of transformation cannot perform reproduction of the content, thereby preventing the content from being used in an unauthorized manner.

In addition, according to the configuration of an example of the present invention, transformation data including data enabling the identification information setting bits that enables a content playback device or content playback application to be identified for analysis are applied , so that even in the case and unauthorized content seeps, the analysis of transformation data allows the source of leakage of unauthorized content to be marked.

In addition, according to the configuration of an example of the present invention, as for the modified data adjustment position, more effective adjustment to perform data destruction, for example, effective finger destruction can be performed by an arrangement in which the region data identification data MPEG is established as an object to be modified, or similar, and also data modification to enable the identification information setting bits that enable a content playback device or content playback application to be identified to be analyzed is adjusted to reduce affect the content of original data as little as possible.

In addition, according to the configuration of an example of the present invention, an arrangement can be made in which the content is generated to allow special reproduction, such as reproduction at high speed in relation to the content, in which the modified data is adjusted to reproduce the portion other than the modified data portion, and are recorded

Petition 870180140775, of 10/11/2018, p. 33/274 in an information recording medium. With special reproduction, such as high speed reproduction, a reproduction processing device can perform special reproduction that does not require performing data transformation.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a diagram describing a content to be recorded in an information recording medium, and data transformation processing required for content reproduction;

Fig. 2 is a diagram describing data configuration in a case in which an adjustment table is stored within transport stream packages including content;

Fig. 3 is a diagram describing a device configuration for performing content creation and recording processing including modified data, and a manufacturing processing of an information recording medium storing content;

Fig. 4 is a diagram describing the generation of content processing steps including modified data;

Fig. 5 is a diagram describing the data configuration of a data adjustment table to be recorded in an information recording medium;

Fig. 6 is a diagram illustrating the entire data configuration of an adjustment table;

Fig. 7 is a diagram illustrating the data configuration of an adjustment table block (FUT block) of multiple adjustment table blocks (FUT blocks) included within an adjustment table;

Fig. 8 is a diagram illustrating the data configuration of a transformation data entry within an adjustment table block (FUT);

Fig. 9 is a diagram describing processing to generate

Petition 870180140775, of 11/10/2018, p. 34/274 data modified in an encoding method to which a DCT block configuration is applied;

Fig. 10 is a diagram describing processing to generate data modified in an encoding method to which a DCT block configuration is applied;

Fig. 11 is a diagram describing processing to generate data modified in a coding method to which arithmetic coding is applied;

Fig. 12 is a diagram describing image selection processing in the generation of modified data;

Fig. 13 is a diagram describing processing to generate transformation data fitted with identifier in a coding method to which a DCT block configuration is applied;

Fig. 14 is a diagram describing processing to generate transformation data in a method of parallel use of a DCT block configuration and arithmetic coding;

Fig. 15 is a diagram describing the settings and processing of stored data of an information recording medium, a drive device, and an information processing device;

Fig. 16 is a diagram describing an example of adjusting a content management unit to adjust the stored content of an information recording medium;

Fig. 17 is a diagram describing the correlation between the content management unit for adjusting the stored content of an information recording medium and a unit password;

Fig. 18 is a diagram illustrating an example of content provider processing 1.

Fig. 19 is a diagram describing the sequence of

Petition 870180140775, of 11/10/2018, p. 35/274 mutual authentication processing between a drive and a host;

Fig. 20 is a diagram describing transformation data adaptation processing to be performed at the time of content reproduction;

Fig. 21 is a diagram illustrating an example of content provider processing 2;

Fig. 22 is a diagram illustrating an example of content provider processing 3;

Fig. 23 is a diagram describing data configuration in a case in which an adjustment table is stored within transport stream packages including content;

Fig. 24 is a diagram describing an example of content configuration employing an arrangement in which the images I included in the GOP to be applied for special reproduction are not fitted as modified data;

Fig. 25 is a diagram describing an example of content configuration enabling special playback, such as high speed playback to be performed without replacing data using modified data;

Fig. 26 is a diagram describing an example of content configuration enabling special reproduction, such as high speed reproduction to be performed without performing data replacement using modified data;

Fig. 27 is a diagram describing an example of a table (special reproduction information management table) in which the positions of the I images that are not adjusted as modified data are recorded;

Fig. 28 is a diagram describing an example of a table (special reproduction information management table) in

Petition 870180140775, of 10/11/2018, p. 36/274 which positions of images I that are not adjusted as modified data are recorded;

Fig. 29 is a diagram describing an EP map;

Fig. 30 is a diagram describing an EP map;

Fig. 31 is a diagram describing an EP map configuration to enable special reproduction, such as reproduction at high speed, consisting only of images without data modification by applying modification to the EP map itself, and referring to the EP map alone;

Fig. 32 is a diagram depicting a device configuration for performing content creation and recording processing including modified data, and manufacturing processing of an information recording medium stored on a content;

Fig. 33 is a diagram illustrating a flowchart describing the normal playback processing sequence accompanied by data transformation;

Fig. 34 is a diagram illustrating a flowchart describing the special reproduction (high speed) processing sequence accompanied by data transformation;

Fig. 35 is a diagram illustrating a flowchart describing the special reproduction processing sequence (high speed) not accompanied by data transformation by applying a special reproduction management information table or an EP map;

Fig. 36 is a diagram describing an example of content data in which GOP or image data serving as non-modified data is fitted in a predetermined cycle, and an EP map;

Fig. 37 is a diagram describing an example of content data in which GOP or image data serving as non-Petition data 870180140775, from 10/11/2018, pg. 37/274 modified is adjusted in a predetermined cycle, and an EP map;

Fig. 38 is a diagram describing an example of reproduction processing applying an EP map to content in which GOP or image data serving as unmodified data is fitted in a predetermined cycle;

Fig. 39 is a diagram depicting an example of reproduction processing applying an EP map to content in which GOP or image data serving as unmodified data is fitted in a predetermined cycle;

Fig. 40 is a diagram illustrating a flowchart describing the processing sequence for performing special reproduction processing (high speed) not accompanied by data transformation based on cycle information (N);

Fig. 41 is a diagram illustrating a flowchart describing the processing sequence for performing special reproduction processing (high speed) not accompanied by data transformation based on cycle information (N);

Fig. 42 is a diagram illustrating a flowchart describing the processing sequence for performing special reproduction processing (high speed) not accompanied by data transformation based on cycle information (N);

Fig. 43 is a diagram illustrating a flowchart describing the processing sequence for performing special reproduction processing (high speed) not accompanied by data transformation based on cycle information (N);

Fig. 44 is a block diagram describing the functions of an information processing device to perform special reproduction processing, such as high speed reproduction; and

Fig. 45 is a diagram describing an example of

Petition 870180140775, of 10/11/2018, p. 38/274 hardware configuration of an information processing device to run an application serving as the host.

DESCRIPTION OF THE PREFERRED EMBODIMENTS

The information processing device, device for making information recording medium, information recording medium, its methods, and computer program, according to the present invention, will be described in detail with reference to the drawings. Note that the description will be made according to the following items.

1. Content generation and recording processing, and manufacturing processing of an information recording medium.

2. Processing of modified data generation.

2-1. Processing of data generation violated.

2-2. Processing of transformation data generation established with identifier.

2-3. Processing of transformation data generation in the parallel use method of a DCT block configuration and arithmetic coding.

3. Data stored in an information recording medium, and processing overview on the drive and on the host.

4. About the content management unit (CPS unit).

5. Content playback processing (5.1) Content playback processing example 1 (5.2) Content playback processing example 2 (5.3) Content playback processing example 3

6. Example of processing of generation and reproduction 1 of a content including modified data corresponding to the special reproduction.

7. Example of generation and reproduction processing 2 of

Petition 870180140775, of 10/11/2018, p. 39/274 a content including modified data corresponding to the special reproduction of a content including modified data corresponding to the special reproduction.

8. Configuration of the information processing device.

1. Content generation and recording processing, and manufacturing processing of an information recording medium

First, a description will be made regarding the processing of content generation and reproduction, and the processing of the manufacture of an information recording medium.

A description will be made with reference to the configuration of a content to be stored in an information recording medium, and reproduction processing overview with reference to Fig. 1. An information recording medium 10 is an information recording medium as , for example, a Blu-ray disc (trademark), DVD, or similar, and is a means of recording information storing authorized content (ROM disc, or similar), manufactured at the disc factory under the permission of the so-called holder copyright, having rights to the content and appropriate distribution rights, or a means of recording information capable of recording data (RE disc or similar). Note that with the following embodiment, a disk-type medium will be used as an example to describe the information recording medium, the present invention being able to be applied to configurations using various types of information recording media.

For example, AV (audiovisual) content, such as a cinema film, is stored in the medium of recording information 10. These contents are subjected to encryption, and the reproduction of content is possible after decryption by processing by applying an obtainable encryption password. only by a reproduction or device having a

Petition 870180140775, of 10/11/2018, p. 40/274 certain license. Reproduction processing of specific content will be described later. The content stored in the information recording medium 10 is not only encrypted, but also has a configuration in which the content configuration data has been replaced by modified data 5.

Fig. 1 illustrates the example of configuring recording content 11 stored in the information recording medium 10. Recording content 11 is configured with normal content data 12 that has not been modified, and modified data 13 that constitutes content 10 added for being modified. Modified data 13 includes data embedded in a stream, data breached, and modification data established with an identifier. The breached data is data that has been destroyed by the original content being subjected to data processing, and is data made up of random numbers. Consequently, 15 reproduction of appropriate content cannot be performed from this content 11 including the breached data. Modification data established with an identifier can be reproduced without influencing a user's viewing or hearing.

In order to perform content reproduction, processing 20 to replace the breached data within the modification data 13 included in the recorded content 11 with appropriate content data, it is necessary to generate a reproduction content 20. Transformation data serving as corresponding content data the respective regions and modification data are recorded in an adjustment table 15 recorded on the information recording medium 10. The information processing device (reproduction device) for performing content reproduction obtains transformation data 21 recorded in the data table. setting 15 recorded in the information recording medium 10, performs processing to replace the data in the data regions violated by them to generate a content of

Petition 870180140775, of 10/11/2018, p. 41/274 reproduction 20, and performs reproduction. Specific examples of the adjustment table, and the detail of reproduction processing using the adjustment table will be described below.

Now, at the time of generating the playback content 20, in addition to the processing to replace the modification data 13 with transformation data 21 which is normal content data, processing is performed to replace a partial region of the recorded content 10 with transformation data established with identifier 22, including data enabling the analysis of the configuration bits of identification information 10 constituting a content reproduction device or identifiable content reproduction application (a reproducer ID). For example, in a case of content copied without leaking authorization, the analysis of the transformation data established with identifier 22 within the leaked content can make it possible to determine the source of the leaking of the unauthorized content.

Note that an arrangement can be made, in which the setting table is saved in the information recording medium by setting as a separate file from the content, or is sparingly saved through certain packages within the content configuration data. In the case of employing an arrangement in which the adjustment table is sparsely recorded through certain packages within the content configuration data, for example, as shown in Fig. 2, the adjustment table is stored in the configuration packages. transport stream including content. Fig. 2A illustrates the configuration of content data. This content configuration illustrates 25 content data consisting of transport stream (TS) packets of a predetermined number of bytes. The adjustment table is divided and saved in the multiple packages that are part of these TS packages. For example, the adjustment table is saved in TS 25, 26 etc. packages shown in the drawing. Examples of TS packages used to store a tuning table include

Petition 870180140775, of 10/11/2018, p. 42/274 TS packages including a PMT (programmable map table) sparingly established through content etc.

Recorded in an adjustment table, there is transformation data (or transformation data established with an identifier) to perform substitution processing with respect to the decrypted content, and recorded apposition of the transformation data.

The transformation data recorded in each of the adjustment tables has the recorded position established next to the TS packages including each of the adjustment tables, as shown in Fig. 2B, for example. For example, with the example shown in Fig. 2B, packets 27 and 28 having transformation data recording regions are established next to packet 25 including the adjustment table. This establishment thus allows substitution processing to use transformation data as continuous processing following decryption, in the case of decrypting and reproducing content in real time, and processing of TS packet detection and analysis by recording the adjustment table allows processing to obtain the transformation data and write (overwrite) the transformation data in the position saved in the table to be executed effectively.

Note that an arrangement is preferably made in the case of generating the modified data 13 included in the recorded content 11 shown in Fig. 1, the content needing to be breached using data processing in relation to the original content, and processing over the region as little data as possible effectively influences the playback data of the content.

That is, the modified data 13 included in the recorded content 11 shown in Fig. 1 is preferably set at the position where the image of normal content cannot be recognized by processing due to the small data region.

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On the other hand, the transformation data established with identifier 22 shown in Fig. 1 is transformation data including an identifier in the normal content, but these are transformation data to be applied for content reproduction, so that the device that does not causes a major change to normal content is necessary. Below, a description will be made with respect to the generation of content, and processing of the manufacture of a means of recording information storing the content.

Fig. 3 is a diagram depicting the generation of content including modified data, an information processing device for submitting an information recording medium by storing the content for data recording processing, and processing in a data manufacturing device. information recording means to perform manufacturing processing of an information recording means. These devices first enter content material 30, such as a cinema, to be recorded on an information recording medium, and perform encoding processing, such as MPEG encoding or similar, in the encoding processing unit 31, for example . These devices then perform multiplexing processing of TS packets, such as video data and audio data, and, in addition, a PMT (programmable map table 20), or similar, on a 32 multiplexing processing unit. Fig. 4A illustrates an AV stream data configuration following multiplexing processing. The PMT indicates data from the adjustable map table, V indicates video data, and A indicates audio data, respectively. PMT, as described with reference to Fig. 2, is used as a recorded region of the adjustment table in which transformation data is recorded. At this time, an adjustment table has not been generated and, thus, fictitious FUT information is recorded in PMT.

A modified data positioning unit 33 determines the data position of a content to execute

Petition 870180140775, of 10/11/2018, p. 44/274 replacement of data by transformation data. That is, the modified data position determination unit 33 determines the position of adjustment of violated data, and the position of adjustment of violated data of transformation data established with identifier. Note that, as described above, the adjustment position of the violated data is configured so that the processing for a data region as minimal as possible causes a great influence on the content reproduction data, effectively, and the adjustment position modified data set with identifier is a position that does not greatly affect normal content. Specific examples of these will be given later. For example, video data 41 and 42 shown in Fig. 4B are determined as modified data positions.

Then, an adjustment table generating unit 34 generates an adjustment table in which transformation data is recorded. That is, the adjustment table generating unit 34 generates an adjustment table in which transformation data serving as an object to be replaced by transformation data established as content configuration data are recorded. Note that the adjustment table also stores transformation data established with an identifier allowing the identification information of a content reproduction device or content reproduction application to be analyzed, and the adjustment table generating unit 34 also performs processing to generate these. transformation data established with identifier.

A description will be made regarding the data configuration of the adjustment table to be recorded in an information recording medium with reference to Fig. 5. The data transformation table to be recorded in an information recording medium has the data configuration shown in Fig. 5, for example. That is, this table has the following data:

Adjustment input number: Number of adjustment data inputs

Petition 870180140775, of 10/11/2018, p. 45/274 transformation (adjustment input number)

Adjustment input length: byte length of a transformation data entry (byte length of an adjustment input () = (N + 6))

SPN (source packet number): Packet number of the starting position of an AV stream file of transform data recording packets (absolute number of packets transformed since the beginning of the AV stream file)

Byte deviation: Byte deviation indicating the initial position of recording transformation data within the package specified by SPN (initial position of transformation data byte in the package) player_id_bit_position: Bit position of an identification mark (as an ID of breeder) (Indicates breeder ID bit position for judicial argument)

Adjustment data: overwritten transformation data (value to be overwritten (N bytes are transformed into a TS packet))

A large number of violated data is arranged within a content in a sparse way, these violated data positions are overwritten with transformation data recorded in the adjustment table. In addition, even with transformation data established with identifier including data enabling the identification information setting bits (for example, player ID) that allow a content playback device or content playback application to be analyzed to be identified, a large number of writing positions are adjusted within a given content. The adjustment table is fitted as a table in which “overwritten transformation data serving as the entity data of this transformation data to transform the violated data into authorized content data, and

Petition 870180140775, of 10/11/2018, p. 46/274 (b) transformation data established with identifier, and information of specification of the writing positions of this data are recorded.

Note that the adjustment table (FUT) can be divided into multiple positions within a content, and saved. The adjustment table to be recorded in an information recording medium can be divided into adjustment table blocks serving as partial configuration data of the adjustment table, and recorded within a content in a sparse way. These setting table blocks are subjected to obfuscation processing for each block using computation such as AES encryption, exclusive OR computation, or similar.

The information processing device to perform content playback causes the secure VM set on the information processing device side to perform decryption processing or predetermined computation processing for each setting table block (FUT block) to obtain the table of adjustment for each block serving as plain text data and then obtain the transformation data. The secure VM performs these processing intermittently before and during content playback or product processing. The details of this processing will be described below.

Description will be made with reference to Figs. 6 to 8 with respect to an example of setting table data configuration in the event that the setting table is divided into setting table blocks serving as partial setting table setting data, and recorded within a content of a sparse way.

Fig. 6 illustrates the entire data configuration of the adjustment table, Fig. 7 illustrates the data configuration of an adjustment table block (FUT block) of multiple adjustment table blocks (FUT blocks) included in the adjustment table. adjustment, and Fig. 8 illustrates the data configuration of an input

Petition 870180140775, of 10/11/2018, p. 47/274 of transformation data within an adjustment table block (FUT).

As shown in Fig. 6, the adjustment table includes the following data:

Number of FUT blocks: Number of adjustment table blocks

FUT block length: Byte length of an adjustment table block

SP #: Secret parameter number (associated with the VM generated SP)

First SPN for FUT block: Package position given to an adjustment table block

FUT block (): Adjustment table block (each block is processed (obfuscated) with a different parameter)

The adjustment table includes multiple adjustment table blocks (FUT), and these multiple adjustment table blocks (FUT) are each subjected to exclusive OR computation processing using i, different secret parameter (SP1, SP2, SP3 etc).

Fig. 7 illustrates an example of data configuration of multiple adjustment table blocks (FUT blocks) included in the adjustment table shown in Fig. 6. Each of these adjustment table blocks (FUT blocks) is recorded in the TS package. 25 described with reference to Fig. 2, for example. As shown in Fig. 7, an adjustment table block includes the following data:

Adjustment Table Entry Number in this block: Number of transformation data as an index of the recording position of the transformation data (Package No.)

Setting table input (): Input of transformation data (processed (obfuscated) with a secret parameter)

Fig. 8 illustrates an example of data configuration for a transformation data entry (Adjustment Table Entry) included in the

Petition 870180140775, of 10/11/2018, p. 48/274 adjustment table block shown in Fig. 7. As shown in Fig. 8, the transformation data input (Adjustment Table Input) includes the following data:

type-indicator: Type identifier [00: no transformation, 01b: processing with transformation data, 10b, 11b: processing with transformation data established with identifier

FM_ID_bit-position: breeder ID bit identification position corresponding to transformation data established with relative_SPN identifier: Package position applying transformation data (package number of a programmable map table (PMT) storing package) byte_position: Position of recording transformation data into a package overwrite_value: Transformation data (including transformation data established with identifier) relative_SPN_2: package position applying second transformation data (package number of a PMT package) byte_position_2: recording data position of transformation within a package (corresponding to the second transformation data overwrite_value_2: Second transformation data (including transformation data established with identifier)

A transformation data entry includes this data.

The fit table is fitted as a fit table by recording fit position information with respect to transformation data serving as an object to be replaced by a part of the content data, and the content of the transformation data, and data transformation is performed by running a program for processing

Petition 870180140775, of 10/11/2018, p. 49/274 data transformation including a command to perform content configuration data replacement processing using this tuning table.

The [type_indicator] information included in the transformation data entry (fit table entry) included in the fit table block shown in Fig. 8 is a type identifier to identify whether the fit table record information is:

(a) the registration information according to the transformation data to transform violated data into authorized content data, or (b) registration information according to the transformation data to embed the identification information of a reproducing device, or content playback application.

In case the registration information region of the adjustment table is a registration information region according to the transformation data established with an identifier to embed the identification information of a reproduction device or content reproduction application, the data of transformation that are selectively applied based on the identification information of the content reproduction device or content reproduction application, that is, the transformation data established with identifier are registered as table record information.

The registration information [FM_ID_bit_position] is positional information of bits to be referred to to determine the processing mode, of the identification information of a reproduction device or reproduction application consisting of multiple bits. For example, the processing mode is determined, where the identification information of a reproduction device or reproduction application consisting of multiple bits, in the case where the bits to be referred to determine mode

Petition 870180140775, of 10/11/2018, p. 50/274 processing has a bit value of 1, substitution of transformation data established with identifier within content configuration data in the adjustment table is performed, but in case the bits to be referred to have a bit value of 0 , replacement is not performed, thus performing data transformation.

Note that an arrangement can be made where, in the case of reference bits being 0, transformation is performed, but in the case of 1, transformation is not performed. In addition, an arrangement can be made in which the reference bits are 0, and the transformation data in the case of 1 is set as separate transformation data, respectively, and the transformation data is selectively adjusted depending on the bit values of the reference bits, as appropriate.

Note that the adjustment table according to the present processing example includes multiple adjustment table blocks (FUT), and these multiple adjustment table blocks (FUT) are each subjected to exclusive OR computation processing or processing encryption using a different secret parameter (SP1, SP2, SP3 etc.), and archived. That is, with the present processing example, the adjustment table is stored in an information recording medium as independent file data, but as described with reference to Figs. 6 to 8, includes multiple adjustment table blocks (FUT), and each of these multiple adjustment table blocks (FUT) is subjected to exclusive OR computation processing by individually applying a different secret parameter (SP1, SP2, SP3 etc.) , and stored. Secret parameters are made up of 128-bit data, for example. The processing applying these parameters will be described later.

After the adjustment table generating unit 34 generates an adjustment table in which transformation data is recorded, a PMT determination unit recorded in the adjustment table determines the

Petition 870180140775, of 10/11/2018, p. 51/274 position of a PMT (programmable map table) where the adjustment table (FUT) is registered. As described above, the adjustment table (FUT) can be divided into multiple PMT positions within a content, and saved. For example, as shown in Fig. 4 (c), a PMT 43 is selected as the 5 recording position of the adjustment table in which the transformation data corresponding to video data 41 and 42 are recorded.

An adjustment table recording processing unit 36 records the adjustment table in the PMT determined in the PMT determination unit recorded in the adjustment table 35. Then a modified data recording unit 37 performs data destruction processing of content in the violated data adjustment position included in the content data position where the data replacement determined by the modified data position determination unit 33 is performed. For example, as shown in Fig. 4D, data destruction processing of the video content of video data 41 and 42 is performed. Subsequently, a cryptographic processing unit 38 performs cryptographic processing according to a predetermined sequence, and a data recording unit 39 performs recording processing for a disc, thereby generating a disc 10 on which the content is written. . Note that processing on the data recording unit 39 includes processing the original disc making, stamp making, and stamping disk production.

2. Processing of modified data generation

According to the above process, a disc, serving as a means of recording information in which a content including modified data is recorded, is manufactured. Then, modified data, that is, a specific example of processing to generate violated data and transformation data established with an identifier will be described with reference to Fig. 9 and others. As described with reference to Fig. 3, the

Petition 870180140775, of 10/11/2018, p. 52/274 positioning of modified data 33 determines the data position of a content to perform data substitution with transformation data, and the setting table generating unit 34 generates transformation data to be replaced by violated data, and data of 5 transformation established with identifier (override value 1 and override value 2 in Fig. 8), and then generates the adjustment table in which they are registered. In addition, the modified data recording unit 37 destroys a partial region within a content to generate violated data and “modified” data established with an identifier. Note that the 10 modified data established with identifier are data to be replaced by (or cannot be replaced by) “transformation” data established with identifier, according to the bit value of the breeder ID, and both modified data established with identifier and the transformation data established with identifier are 15 data sufficient to view and hear by the user (data capable of normal reproduction).

(2-1. Violated data generation processing)

As described above, data breached to destroy an image is preferably configured so that processing in as small a data region as possible effectively influences the reproduction data of a content. That is, the breached data 13 included in the recorded content 11 shown in Fig. 1 is preferably adjusted in a position so that images of normal content cannot be recognized due to the processing carried out on the small data region. For example, with the example in Fig. 8, an adjustment is desirable for the transformation data to be 5 bytes (40 bits), and for the modification to be made to be able to sufficiently destroy the image information. The modified data recording unit 37 destroys a partial region within a content to generate violated data based on this. THE

Petition 870180140775, of 10/11/2018, p. 53/274 modified data recording unit 37 generates modified data using modification processing in which the encoded MPEG data configuration units included in a TS packet constituting content is set as a data modification processing unit.

The content recorded in the information recording medium is the content submitted to MPEG encoding, for example. Hereinafter, a description will be made in relation to a processing example to generate violated data using each of the MPEG2 encoding methods, for example, to follow the generation of a DCT block, and the MPEG4AV encoding method, for example, to perform arithmetic encoding. on the imaging units.

(a) Processing to generate violated data using an encoding method to which a DCT block configuration is applied

The encoding method to which the DCT block configuration is applied is, for example, MPEG2 compression image data, which is known as a technique for performing high definition image compression processing. The MPEG2 compression method is a data compression method performed by generating a DCT block (discrete cosine transformation) which is compression using correlation within a screen. This is a compression method that combines motion compensation serving as compression based on the correlation between screens and Huffman coding serving as compression based on the correlation of coding strings. With MPEG2, predictive encoding is performed using motion compensation, as shown in Fig. 9A, the picture frames constituting the moving image are classified into three elements called image I, image P and image B, and a GOP configuration ( Group of images) is used as a group consisting of predetermined units of frames of image I, image P and image B.

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I-images (intra-coded images) are created using intra-field coding, and thus are image frame data without performing predictive coding based on the previous image. On a screen displaying only images created using predictive encoding, the screen cannot be displayed in an instant in response to random access. For this purpose, random access can be manipulated by periodically creating an image based on access. In other words, images I are present to maintain independence from the GOPs.

The amount of data in an I image is twice as much as triple that of a P image, and five to six times in relation to a B image. GOP means a group of images from an I image to the next I image. Consequently, image prediction is performed between images within this group. P images (predictive coded images) are images created by performing predictive coding of the last image, and are created based on I images. P images are defined as “semi-directional predictive intra-frame coded images”, as I images serving as “intra-frame encoded images”. B-images (bi-directional predictive coded images) are “bi-directional predictive coded images”. B images are created by the prediction run of two preceding and following I or P images.

With the data compression method to generate a DCT block (discrete cosine transform) that is applied in MPEG2, each image data is configured by multiple slices, as shown in Fig. 9b, and each slice is further configured by multiple macro blocks. Data destruction processing to generate violated data can be performed by adjusting, for example, any of: macro block units, slice units, image units and GOP units.

From these respective processing units, as shown in Fig. 10, the generation of data violated by the destruction of data in units

Petition 870180140775, of 10/11/2018, p. 55/274 slice is effective. Specifically, restoration and reproduction of image data included in at least one slice is made impossible by the destruction (data processing) of a region including a header included in a slice (slice information) and thus the effective destruction of data from image can be performed. Specifically, the generation of violated data is performed by performing data processing with several bytes to several tens of bytes including a header included in a slice (slice information) as units.

(b) Processing to generate violated data using an encoding method to which arithmetic encoding is applied.

Then, the description will be made with reference to Fig. 11 regarding an example of processing to generate violated data in the case of performing arithmetic encoding in image units, for example, applying MPEG4-AVC encoding. Even in the case of arithmetic encoding (such as MPEG4-AVC), as with the previous MPEG2 encoding, picture frames are classified into I images, P images and B images, the GOP (Group of images) configuration as a group consisting of predetermined units of frames of image I, image P and image B is similarly employed, but in the case of application of MPEG4AVC encoding, a video frame is recorded as the encoded data of image I.

For example, as shown in Fig. 11A, suppose that an encoding processing configuration in which all I images are considered to be an arithmetic code block is employed. Or, as shown in Fig. 11B, an encoding processing configuration in which I images are classified into multiple arithmetic code blocks can be established.

In the case of submitting the encoded data for data destruction processing using this arithmetic encoding, the generation of violated data is carried out by destroying data in the block units.

Petition 870180140775, of 10/11/2018, p. 56/274 arithmetic coding. Specifically, the generation of violated data is carried out by executing data processing with several bytes to several tens of bytes selected from an arithmetic coding block as units and, thus, the restoration of an arithmetic coding block may be impossible. In the case of arithmetic coding, the range of data selection to be breached is large, which facilitates the determination of a data destruction position.

(c) Image selection processing in the generation of violated data

Note that even if the encoding uses a DCT block encoding described with reference to Figs. 9 and 10, or the coding processing using arithmetic coding described with reference to Fig. 11, images to be selected as violated data are preferably the images I included in each GOP.

As shown in Fig. 12, the images included in the GOP consisting of images I, P and B generated with the MPEG encoding are, as described with reference to Fig. 9, created by the intra-field encoding, and are data including reference data in GOP units, and are also data including information to be referenced by P images or B images within the same GOP. Consequently, the restoration of P images and B images included in the GOP is made impossible by the modification (destruction of I images and, thus, a greater range of the image frame can be established as regions of impossible restoration.

(2-2. Transformation data generation processing established with identifier)

Then, a description will be made with reference to the processing of generation of transformation data established with an identifier with reference to Fig. 13 and others. That is, this processing is processing of generation of transformation data established with

Petition 870180140775, of 10/11/2018, p. 57/274 identifier 22 to be registered in the adjustment table 15 shown in Fig. 1. As described above, the generating unit of adjustment table 34 shown in Fig. 3 generates an adjustment table in which transformation data established with identifier enabling the identification information of a content playback device or content playback application to be analyzed is recorded. The transformation data established with an identifier is preferably configured so as not to greatly affect the normal content. This is due to the transformation data established with an identifier being applied to the reproduction of content by replacing a partial data of a content serving as transformation data, and the occurrence of alteration, visually recognizable on the content data by the addition of an identifier, does not it's preferable.

(a) Processing to generate transformation data established with identifier using an encoding method to which a DCT block encoding is applied.

A description will be made of a processing example to generate transformation data established with an identifier using an encoding method to which a DCT block encoding is with reference to Fig. 13. As described above, the MPEG2 method, that is, data compression by generating a DCT block (discrete cosine transform), each image of images I, P and B is configured with multiple slices, as shown in Fig. 13, and each slice is also configured with multiple macro blocks.

This encoding data is subject to data modification based on an identifier (for example, breeder ID). In order to carry out data modification processing that does not affect large changes to content, modification processing at a level that slightly changes the high frequency components of DCT coefficients is

Petition 870180140775, of 10/11/2018, p. 58/274 executed within a macro block configuration, for example. For example, data processing is performed with several bytes to several tens of bytes as units, thus performing modification processing that slightly changes the high frequency components of DCT coefficients. The analysis of DCT coefficients makes it possible to determine whether it is a DCT block in which an identifier is embedded, or whether it is a DCT block in which an identifier is not embedded.

With content reproduction, even in the case of reproduction based on a DCT block in which an identifier is embedded, or even in the case of reproduction based on a DCT block in which an identifier is not embedded, modification processing is a level at which components high frequency are slightly altered, making it difficult to recognize this as visually large alteration and, consequently, that does not cause deterioration in the image quality.

(2-3. Transformation data generation processing in the parallel use method of a DCT block encoding and arithmetic encoding)

Next, a description will be made of an example of processing transformation data generation using the parallel use method of a DCT block encoding and arithmetic encoding with reference to Fig. 14. IN the case of arithmetic encoding (such as MPEG4AVC), as described above, as with MPEG2 encoding, image frames are classified into I images, P images and B images, the GOP (Image Group) configuration as a group consisting of predetermined units of I image frames, P image and B image it is similarly employed, but a video frame is recorded as an image's encoded data.

With this configuration of arithmetic coding processing in the imaging units, data modification based on a

Petition 870180140775, of 10/11/2018, p. 59/274 identifier affects all images, which is not preferred. In the case of arithmetic coding, even with replacement of one-byte data, destruction of the reproduction image occurs in the units of the arithmetic code block, so this is not suitable for data embedding.

The size of an arithmetic coding block can be reduced (at least one slice), but this causes a problem with the coding efficiency being deteriorated.

Consequently, an image in which an identifier is embedded is preferably established for data encoded having a DCT block encoding. For example, as shown in Fig. 14, encoding is performed using the parallel use method of a DCT block encoding and arithmetic encoding. That is, images I and P employ arithmetic coding, and images B employ DCT block encoding. The macro block of the DCT block in image B is modified so as to embed an identifier. With these adjustments, embedding an identifier does not affect other images, thereby preventing deterioration in image quality.

3. Data stored in an information recording medium, and processing overview on the drive and host

Next, a description will be given regarding the stored data of an information recording medium storing content including the data violated above, and an overview of the processing on the drive and host that perform reproduction processing of the stored content of the information recording medium. Fig. 15 illustrates the configuration of an information recording medium 100, which stores content, a drive 120, and a host 150. Host 150 is, for example, a data playback (or recording) application. run on an information processing device, such as a PC or similar, and performs processing using the hardware of the

Petition 870180140775, of 10/11/2018, p. 60/274 information processing, such as a PC or similar, according to a predetermined data processing sequence.

The information recording medium 100 is a medium for recording information such as a Blu-ray disc (trademark), DVD or the like, and is a medium for recording information in which a content including the modified data above is recorded. As shown in Fig. 15, the information recording medium 100 stores encrypted content 101 subjected to encryption processing and partial data replacement processing, a MKB (media password block) 102 serving as an encryption password block. which is generated based on the tree-based password distribution method that is known as a type of radiation encryption method, a 103 title password file consisting of data in which a title password to be applied to the processing of content decryption is encrypted (encrypted CPS unit password) or similar, usage rule 104 including CCI (copy control information) serving as copy / reproduction control information for content or similar, an adjustment table 105 in which transformation data corresponding to the replacement data for a predetermined region within a content is recorded, and a data transformation processing program 106 including a processing command to perform data transformation processing using the recorded data from the setting table 105. Note that the data example shown in the drawing is an example, the stored data differing more or less , depending on the type of disc or similar. A description of the overview of these various types of information will be provided below.

(1) Encrypted content

Various types of content are stored in the information recording medium 100. Examples of content include AV (audio-visual) streams of mobile image content, such as cinema content

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HD (high definition) which are high definition mobile image data, game programs of a format stipulated under a particular standard, image files, audio data, text data etc. These contents are data stipulated in a particular AV format, and are stored according to the particular AV data format. Specifically, these are stored according to the Blu-ray Disc ROM (trademark) format, as normal Blu-ray Disc ROM (trademark) data, for example.

In addition, there are cases in which game programs, image files, audio data, text data, etc. are stored in service data, for example. There are cases in which these contents are stored as data having a data format not complying with the particular AV data format.

Content types include various content, such as music data, cinema, still images and similar image data, as well as game programs, web content, etc. and information in various ways is included in this content, as content information usable only by the data of the information recording medium 100, content information usable by combining data from the information recording medium 100 with data provided from the server connected to a network etc. Content stored in the information recording medium is encrypted and stored, with a different password appropriate for each section content (CPS unit password or unit password (or also called title password)), to control different uses for each section content. Each unit to which a unit password is assigned is called a content management unit (CPS unit). In addition, the content configuration data is set as modified data, where part of it is replaced by data other than the correct content data (data breached) or modified data established with

Petition 870180140775, of 10/11/2018, p. 62/274 identifier, so that decryption processing alone does not reproduce the correct content, and processing to replace the breached data with data recorded in an adjustment table is necessary to perform the reproduction.

(2) MKB

The Media Password Block (MKB) 102 is an encryption password block generated based on a tree-structure password distribution method known as a type of radiation encryption method. MKB 102 is a block of password information enabling the acquisition of a media password (Km) necessary to decrypt content, only for processing (decryption) based on a device password (Kd) stored in a device's information processing device. user having a valid license. This is an application to which the method of distributing information following a so-called hierarchical tree structure is applied, enabling the acquisition of a media password [Km] only if the user's device (information processing device) has a license valid, and user devices that are invalid (revocation processing) are unable to acquire a media password [Km].

An administration center serving as a licensing entity can generate a MKB having a structure that cannot be decrypted with the device password stored on a certain user device, that is, where the media password required to decrypt content cannot be acquired by changing the device password used to encrypt the password information stored in the MKB. Consequently, unauthorized devices can be revoked at an arbitrary time, thereby providing encrypted content capable of decrypting only devices with valid licenses. Content decryption processing will be described

Petition 870180140775, of 10/11/2018, p. 63/274 below.

(3) Title password file

As described above, each content or group of multiple contents is subjected to encryption by applying individual encryption passwords to each one (title password (CPS unit password)) to manage the use of content, and stored in the information recording medium 100 That is, AV streams (audio visual), music data, cinema films, still images, and as image data, game programs, web content, etc., constituting the content, need to be sectioned into usage management units. content, with a different title password generated for each section unit, thus performing decryption processing. Information for generating these title passwords is title password data, and the title password is obtained by decrypting a title password encrypted with a password generated by a media password or similar, for example. Title passwords corresponding to each unit are generated after a predetermined encryption password generation sequence using title password data, and content decryption is performed.

(4) Rule of use

Usage rule includes, for example, copy / reproduce control (CCI) information. That is, this is copy restriction information and reproduction restriction information for use control corresponding to the encrypted contents 101 stored in the information recording medium 100. There are several adjustments for the copy / reproduction control (CCI) information, as information cases for individual CPS units set up as content management units, etc.

(5) Adjustment table

As described above, the encrypted content 101 stored in the information recording medium 100 has been subjected to

Petition 870180140775, of 10/11/2018, p. 64/274 predetermined encryption and also a part of the content configuration data is configured from modified data (tampered data or modified data established with identifiers other than the appropriate data). In order to reproduce the content, processing of data overwriting is necessary, where the modified data is replaced by transformation data which is the appropriate content data. The table in which the transformation data is recorded is an adjustment table 105. A large number of modified data is adjusted sparingly throughout the content, and at the time of reproducing the content, processing is necessary to replace (overwrite) the multiple pieces of data modified by the transformation data recorded in the adjustment table. The application of this transformation data means that even in the event that unauthorized content decryption is carried out due to a leak of the encryption password, for example, reproduction of appropriate content is impossible by decrypting content only, due to the presence of overwritten data, thereby preventing the use of unauthorized content from being prevented.

In addition to the normal transformation data, the setting table 105 includes transformation data including data allowing 20 to analyze identification information setting bits to enable the content playback device or content playback application to be identified. Specifically, for example, this includes a breeder ID which is identification data for a breeder (a device for running a host application), or transformation data established with an identifier serving as "transformation data" including identification marks " where identification information generated based on the breeder ID is recorded. Transformation data established with identifier is data in which the bit values of the appropriate content data have been slightly

Petition 870180140775, of 10/11/2018, p. 65/274 changed as described above, at a level that does not affect content playback.

Note that although an example is shown in Fig. 15, where the setting table 105 is established as an independent data file, as described above, an arrangement can be made in which the setting table is not established as an independent file, and it is sparingly included within the encrypted content 101 configuration packages.

(6) Data transformation processing program

The data transformation processing program 106 is a program including a processing command to perform data transformation processing using the recorded data from the setting table 105, and is used by the host that performs content playback. This is performed by a data transformation processing unit 154 from host 100 in Fig. 15.

The host sets up a virtual machine (VM) to perform data transformation processing, and the virtual machine (VM) executes the data transformation processing program 106 read from the information recording medium 100, and submitted an unencrypted content, the its partial configuration data, to the data transformation processing of setting table 105. A description of the details of these processes will be provided below.

Next, the settings of host 150 and drive 120 and processing overview will be described with reference to Fig. 15. Reproduction processing of the content stored in the information recording medium 100 is performed by the data being transferred to host 150 via drive 120. Prior to the use of the content, mutual authentication processing is performed between drive 120 and host 150, and, after confirmation of validity and both parties by this authentication processing is established, the encrypted content is

Petition 870180140775, of 10/11/2018, p. 66/274 transferred from the drive to the host, content decryption processing is carried out on the host side and, in addition, the data transformation processing mentioned above by the adjustment table is performed, whereby the content reproduction is carried out .

For mutual authentication performed between host 150 and drive 120, processing to determine validity is performed by reference to a revocation list (invalidation) issued by an Administration Center on whether or not each of the devices or applications is registered as an unauthorized device or application

Drive 120 has memory 122 for storing a CRL (certificate revocation list) storing revocation (invalidation) information from the host certificate (public password certificate). The memory is non-volatile memory (NVRAM), and if the CRL of the information recording medium 100 is a newer version, for example, its respective data processing units 121 and 151 perform update processing to store the information. Host CRL or the drive CRL of the new version in memory 122 and 152.

A CRL, such as the host CRL or drive CRL, is constantly updated by the central administration. That is, in the event that an unauthorized device has recently been discovered. An updated CRL in which the certificate ID issued to the unauthorized device or the device ID or similar is added as a new entry is issued. Each CRL is provided with the version number, and has a configuration in which the old and new versions can be compared. For example, in the event that a CRL read from an information recording medium mounted on the drive is newer than the CRL stored in memory 122 within the drive, the drive performs CRL update processing. Host 150 also performs drive CRL update in the same way.

In addition to the RL update processing, the

Petition 870180140775, of 10/11/2018, p. 67/274 data processing 121 from drive 120 performs authentication processing with the host that is performed at the time of using the content, and additionally performs processing to read data from the information recording medium and transfer data to the host.

As described above, host 150 is, for example, a data reproduction (or recording) application to be run on an information processing device such as a PC or similar, and performs processing using the information processing device's hardware. such as a PC or similar according to a predetermined data processing sequence.

Host 150 has a data processing unit 151 to perform mutual authentication processing with drive 120, data transfer control etc., a data processing unit 153 to perform encrypted content decryption processing, a data processing unit data transformation 154 to perform data transformation processing in the aforementioned setting table 105 and a decoding processing unit 55 to perform decoding processing (e.g., MPEG decoding).

The data processing unit 151 performs authentication processing between the host and the drive, and within the authentication processing, references the drive CRL stored in memory al52 which is a non-volatile memory (NVRAM), to confirm that the drive it is not a drive that has been revoked. The host also performs update processing to store a new version's drive CRL in memory al52.

The decryption processing unit 153 generates the password to be applied to the content decryption, using various types of information stored in memory bl56 and data read from the recording medium.

Petition 870180140775, of 10/11/2018, p. 68/274 of information 100, performing decryption processing of the encrypted content 101. The data transformation processing unit 154 performs substitution (overwriting) processing of content configuration data by applying the recorded transformation data 5 in the obtained adjustment table of the information recording medium 100, then to the data transformation processing program obtained from the information recording medium 100. The decryption processing unit 155 performs decoding processing (e.g., MPEG decoding).

Information processing device memory bl56 150 stores a device password: Kd, password information to be applied to mutual authentication processing, password information to be applied to decryption, etc. Details of the content decryption processing will be described below. The device password:

Kd is a password to be applied to MKB processing. MKB is a block of password information that makes it possible to obtain a media password [Km], which is a password needed to decipher content, obtainable only by processing (decryption) based on a device password [Kd] stored in the processing device of user information that 20 has a valid license and, at the time of decryption of the encrypted content, the information processing device 150 applies the device password: Kd stored in memory bl56 to perform MKB processing. Details of the content decryption processing will be described below.

4. About the content management unit (CPS unit)

As described above, the content stored in the information recording medium is subjected to decryption processing and is stored with different passwords appropriate for each unit, in order to perform different usage control for each unit. That is, the content is

Petition 870180140775, of 10/11/2018, p. 69/274 sectioned in the content management unit (CP units), individual decryption processing is performed, and individual use management is done.

When using the contents, first, there is a need to obtain a CPS unit Password (also called a title password) appropriate to each unit and then reproduction is performed by performing data processing based on the processing sequences of decryption determined in advance, and so on. The settings for a content management unit (CPS unit) will be described with reference to Fig. 16.

As shown in Fig. 16, the content has a hierarchical configuration of (A) index 210, (B) cinema object 220, (C) playlist 230, and (D) clip 240. Specifying an index as a title to to be accessed by the reproduction application specifies a reproduction program correlated to the title, for example, the reproduction program associated with the title is specified, and the list of reproductions stipulating the content playback order is selected according to the program information playback program that was specified.

Play items are included in the playlist as information on the data to be played. An AV stream that is actual content data, or commands, is selectively fetched by the clip information for playback sections stipulated by the playback items included in the playlist, and playback of the AV stream and processing of command execution is performed. Note that a large number of playlists and play items exist, and each has a corresponding playlist ID and play item ID as identification information.

Fig. 16 illustrates two CPS units. These constitute a part of the content stored in the information recording medium. Each one

Petition 870180140775, of 10/11/2018, p. 70/274 of the CPS units 1 271, and the CPS units 2 272 are CPS units that have been set up as units including a title serving as an index, a movie object that is a play program file, a playlist, and a clip including an AV stream file that is the actual content data.

A content management unit (CPS unit) 1

271 includes a title 1 211 and title 2 212, playback programs 221 and 222, playlist 231 and 232, a clip 241 and a clip 242, and AV stream data files 261 and 262 which are the actual content data contained in the two clips 241 and 242 are at least the encryption object data and, consequently, are adjusted as encrypted data by applying a title password (Ktl) which is an adjusted encryption password corresponding to the content management unit (unit CPS) 1 271 as a rule (also called a CPS unit password).

A content management unit (CPS unit) 2

272 includes an application 1213 as an index, a playback program 224, playlist 233, and a clip 243, and an AV stream data file 263 that is the actual data of the content contained in clip 243 is encrypted by applying a password title (Kt2) which is an encryption password, adjusted corresponding to the content management unit (CPS unit) 2 272.

For example, so that the user executes an application file or content playback processing corresponding to the content management unit 1 271, a title password: Ktl serving as an encryption password that is adjusted to be correlated with the content management unit (CPS unit) 1 271, must be obtained and subjected to decryption processing. And the way that the user executes an application file or content reproduction processing corresponding to the

Petition 870180140775, of 10/11/2018, p. 71/274 content 2 271, a title password: Kt2 as an encryption password that is adjusted to be correlated with the content management unit (CPS unit 2 272), needs to be obtained and subjected to decryption processing.

Fig. 17 shows the CPS unit setting configuration, and an example of corresponding title passwords. Fig. 17 shows a correlation between CPS unit adjustment units that are units for managing use of encrypted content stored on the information recording medium, and title passwords (the CPS unit passwords) applicable to each CPS unit. Note that a CPS unit and a title password for data to come later can be stored and adjusted beforehand. For example, data portion 281 is input for data to arrive later.

CPS unit adjustment units come in a wide variety, such as content headings, applications, data groups, etc., and each CPS unit management table has CPS unit IDs set in it serving as identifiers corresponding to each of the units CPS.

In Fig. 17, title 1, for example, is the CPS unit 1, and when decrypting encrypted content belonging to the CPS unit 1, generate the Ktl title password and perform decryption processing based on the generated title password Ktl is required.

In this way, the content stored in the information recording medium 100 is stored in a way having been subjected to encryption processing and with different encryption passwords appropriate to each of the units, in order to perform different usage control for each of the units. units. UR (rules of use) for each content management unit (CPS unit) are established for individual use management with respect to each of the content management units (CPS units). Rules of use are information

Petition 870180140775, of 10/11/2018, p. 72/274 including, for example, content copy / reproduction control (CCI) information, as described above, and is copy restriction information or reproduction restriction information for encrypted content contained in each of the content management units content (CPS units).

Data processing applying various types of information stored in the information recording medium is necessary to generate a title password. Specific examples of such processing will be described in detail below.

5. Content playback processing

Hereinafter, a description will be made with respect to multiple processing examples in the event that mutual authentication processing is performed between the drive and the host, as an authentication establishment, the content stored in an information recording medium mounted on the drive is transferred from the drive to the host, thereby performing encryption processing.

(5.1) Example 1 of content rendering processing

First, description will be made with respect to example 1 of content reproduction processing with reference to Fig. 18. Fig. 18 illustrates, from the left, an information recording medium 310 storing encrypted content, a drive 330 in which the information recording medium 310 is set to perform data reading, and a host 350 which is connected to the drive in order to be capable of data communication, and which obtains the content stored in the information recording medium 310 by the drive 330 and runs a playback application that performs its playback processing. Host 350 is run, for example, on an information processing device such as a PC or the like.

The information recording medium 310 stores a MKB (media password block) 311, a title password file 312, a

Petition 870180140775, of 10/11/2018, p. 73/274 encrypted content 313, an adjustment table 314, and a data transformation processing program 315. Host 350 contains a device password 351 to be applied to MKB processing.

The processing sequence in which host 350 shown in Fig. 18 obtains and reproduces the content stored within the information recording medium 310 via drive 330 will be described. First, before reading the content stored in the information recording medium 310, host 350 and drive 330 perform mutual authentication in step S101. This mutual authentication is processing to confirm that the host and drive are individually authorized devices or application software. Various types of processing can be applied to this mutual authentication processing sequence. An example will be described with reference to Fig. 19.

Fig. 19 is an example of the mutual authentication sequence with the public password encryption method. First, in step S121, drive 330 transmits the public drive password certificate stored in the memory itself (NVRAM) and an arbitrarily generated random number to the host. In step sl22, host 350 also transmits the public password certificate stored in its own memory (NVRAM) and an arbitrarily generated random number to the drive.

In step sl23, drive 330 verifies the validity of the public password certificate received from the host, and the revoked status of the host based on the host certificate revocation list (host CRL: certificate revocation list). In step S123, drive 330 first performs the signature verification established in the host's public password certificate. ECDSA_V shown in Fig. 19 illustrates execution of signature verification based on elliptical curve encryption. This signature verification is performed by applying the public password corresponding to the secret password of a password management entity.

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The drive retains the public password of the password management entity for signature verification in memory (NVRAM), and performs signature verification by applying this. According to this signature verification, confirmation is made that the host's public password certificate has not been breached. According to this signature check, in the event that confirmation is made that the host's public password certificate has been breached, drive 330 suspends processing.

In addition, drive 330, based on the host's public password certificate from which no breaches have been removed, confirms that this certificate has not been revoked (invalidated) with reference to the host CRL. The host CRL is invalidated certificate IDs listed with respect to the public password certificate issued to the host. Drive 330 obtains the host CRL from memory within the drive or the medium for recording information.

Drive 330 obtains the ID of the host public password certificate from which the breach was removed, and determines whether or not this ID matches the ID registered in the host CRL. In case the coincident ID exists in the host CRL, drive 330 determines that its host is the revoked (invalidated) host, and suspends further processing. In case the ID obtained from the host's public password certificate is not recorded in the host CRL, drive 330 determines that its host is an authorized, non-flown host, and processing continues.

On the other hand, host 350 also performs, in step sl24, on the basis of the drive's public password certificate received from drive 330, confirmation of the validity of the drive's public password certificate (violation check) and determination as to whether or the drive was not flown using the drive CRL. Just in case confirmation is made that the drive's public password certificate is authorized, and has not been flown,

Petition 870180140775, of 10/11/2018, p. 75/274 host 350 continues processing. Host 350 obtains the memory drive CRL within the host or medium for recording information.

Then drive 330 and host 350 report their respective authentication results as a drive response (sl25) and host response (sl26). When informing this authentication result, both sides generate the value to which the elliptical curve encryption is applied, and inform each one of this fact.

When drive 330 receives the drive authentication result and ECDH value from host 350, drive 330 checks the host's response in step sl27, confirms the establishment of drive authentication, and was a session password serving as a password shared by applying the value received from ECDH. Similarly, when host 350 receives the host authentication result and the ECDH value from drive 330, host 350 checks the drive's response in step sl28, confirms the establishment of host authentication, and generates a session password serving as a shared password based on the value received from ECDH.

As a result of this mutual authentication processing, drive 330 and host 350 share a session password (Ks) serving as a shared password.

Returning to Fig. 18, a continued description will be made in relation to the content usage processing sequence. In step slOl, after mutual authentication being performed between the host and drive, and the session password (Ks) being shared, host 350 obtains the MKB 311 recorded in the information recording medium 310 by the drive in step sl02, executes processing the MKB 311 by applying the device password 351 stored in memory, and obtaining the media password (Km) from the MKB.

As described above, the MKB (media password block) 311 is

Petition 870180140775, of 10/11/2018, p. 76/274 an encryption password block generated based on a tree structure password distribution method known as a type of broadcast encryption method, and is the password information block enabling you to obtain a media password (Km) which is a password required for content decryption, only by processing (decryption) based on the device password (Kd) stored on a device that has a valid license.

Then, in step S103, the media password (Km) obtained by processing MKB in step sl02 is applied to perform decryption of the fido title password file of the information recording medium 310, thus obtaining the password for title (Kt). The title password file stored in the information recording medium 310 is a file including data encrypted by the media password, and the title password (Kt) used for content decryption can be obtained by processing by applying the media password. Note that the decryption processing in step sl03 applies an AES encryption algorithm, for example.

Then, host 350 reads encrypted content 313 stored in the information recording medium 310 via drive 330, stores the content read in a track buffer 352, performs decryption processing by applying the title password (Kt) in step sl04 on the contents stored in the buffer, and get the content decrypted.

The decrypted content is stored and a TS 353 plaintext buffer. (TS pure) means an unencrypted plaintext transport stream. Now, the decryption content stored in the TS text buffer 353 is content containing the modified data described above, which cannot be reproduced as they are, and there is a need to perform predetermined data transformation (data substitution by overwriting).

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This data transformation processing is illustrated in block 371 in Fig. 18, Block 371 in Fig. 18 is equivalent to processing a data transformation processing unit 154 from host 150 shown in Fig. 15. The overview of this Data transformation processing will be described with reference to f 20.

The encrypted content 313 shown in Fig. 18 is encrypted content stored in the information recording medium, and this encrypted content is temporarily stored in track buffer 352 on the host side. These are the data stored in the track buffer 401 shown in f 20 (1).

Decryption of the encrypted content that is the data stored in the 401 track buffer is performed by decryption processing on the host side, and the decryption result data is stored in the TS 353 plain text buffer. These are the decryption result data 402 shown in Fig. 20 (2).

The resulting decryption data 402 includes data breached 403 which is not the appropriate content configuration data. The host data transformation processing unit performs processing to replace this modified data 403 with transformation data 404 which is the correct content configuration data obtained from the setting table 314 recorded in the information recording medium 310 shown in Fig. 18. This substitution processing is performed as rewriting (overwriting) a piece of data, with respect to data written to the TS 353 plaintext buffer, for example.

In addition, the data transformation processing that the host performs is not only processing to replace the modified data with transformation data that is normal content data, but also processing is performed to replace a portion of the configuration data in the resulting data decryption method 402 by

Petition 870180140775, of 10/11/2018, p. 78/274 transformation data established with identifier 405, as shown in Fig. 20.

An identifier is a piece of data that enables configuration bits of identification information to constitute a content reproduction device or identifiable content reproduction application, as described above. In the specific example is the identification information configuration data (player ID) of an information processing device serving as a player to run a host application, or an identification tag generated based on the player ID. Transformation data established with identifier is data in which the bit values of the appropriate content data have been slightly altered, to a level that does not affect the playback of content as described above.

A large number of transformation data established with identifier 405 is established within the content, and the collection and analysis of multiple transformation data sets 405 determines the breeder ID, for example. The transformation data established with identifier 405 is data in which, in the configuration, data bits of normal content have been changed within a level at which normal reproduction can be done as content, and these data in which bit determination (bit and configuration identification mark) is made possible by MPEG bit stream analysis.

A large number of the transformation data 404 and transformation data established with identifier 405 shown in Fig. 20 are registered in the adjustment table stored in the information recording medium and, in addition, registration is made with respect to the writing position information. of these. The execution of data transformation processing based on the information stored in the adjustment tables replaces the data stored in the TS 353 plain text buffer with the transformation data 406 shown

Petition 870180140775, of 10/11/2018, p. 79/274 in Fig. 20 (3).

Returning to fig. 18, a description will be given regarding processing within a dotted line block 371, that is, processing data transformation on the host side. Data transformation processing is performed by secure VM 356 which is established as a virtual machine within the host, for example. The virtual machine (VM) is a virtual computer that directly interprets and executes an intermediate language, and interprets and executes command code information in the intermediate language that does not depend on any particular platform.

Secure VM 356 reads data transformation processing program 315 including command code information from information recording medium 310, and performs processing. The secure VM 356 performs processing under the control of an event handler 15 354, also entering ID or similar information from a player (information processing device) running the host application as player information 355, and executes the program data transformation processing 315 obtained from the information recording medium 310. The event handler checks whether or not the processing 20 performed by the secure VM 356 is correctly performed, monitors the processing and status of other host applications, or a player ( information processing device) serving as a host application execution device, and in the event of detecting a processing error, suspend the data transformation processing by the secure 25 VM 356.

The secure VM 356 applies the adjustment table read from the information recording medium 310, and performs transformation processing of the data stored in the TS 353 plain text buffer. That is, this is the data transformation processing in step s! 05 shown in Fig. 18,

Petition 870180140775, of 10/11/2018, p. 80/274 the secure VM 356 replaces the modified data 403 within the decryption result data 402 which is configuration data of appropriate content and furthermore performs data overwrite processing in which the transformation data established with identifier 405 is replaced with a data portion of the content according to the player ID bit shown in the FM ID bit position in Fig. 8, thereby changing the data stored in the TS 353 plaintext buffer to transformation data 406 .

Subsequently, transformed TS (transport stream) is extremly produced via a network or the like, and is reproduced on an external reproduction device. OR, transformation of a transport stream (TS) into an elementary stream (ES) is performed in step sl06 by processing by a demultiplexer and, in addition, after the decryption processing (step sl07), this is reproduced via a high presentation speaker.

Secure VM 356 performs data transformation using the adjustment table previously described with reference to Fig. 5, that is, “transformation overwrite data” as entity data from (a) transformation data to replace violated data with content authorized, and (b) transformation data established with identifier replaced by modified data established with identifier according to the breeder ID, and the adjustment table in which information specifying the writing positions of this data is recorded, and generates reproduced content 20 of the recorded content 11 including modified data, which is described with reference to Fig. 1, thereby performing reproduction processing.

In other words, the secure VM 356 of host 350, according to the setting table 314 recorded on the recording medium of

Petition 870180140775, of 10/11/2018, p. 81/274 information 310, performs processing to write (a) transformation data; and (b) transformation data established with an identifier in the stream of the specified positions of the adjustment table. Data writing is performed as transformation data overwrite processing for data stored in the TS 253 plaintext buffer, or transformation data established with an identifier, and as a result of this processing, the data stored in the TS 253 plaintext buffer is replaced by the data in Fig. 20 (3) previously described.

External output of content from a player (information processing device, such as a PC) assembling the host, or content reproduction is performed as processing based on the transformation data shown in this Fig. 20 (3).

Transformation data is appropriate content configuration data, and also transformation data established with an identifier is data to be applied to reproduce an appropriate content and, consequently, decode reproduction based on this data enables reproduction of appropriate content. For example, in the event that this content is copied in an unauthorized manner, and a portion of unauthorized copied content leaks, analyzing the transformation data established with an identifier allows the breeder ID to be obtained, and enables the source of leakage of unauthorized content data be located.

(5.2) Content rendering processing example 2

Next, a description will be made regarding the content reproduction processing example 2 with reference to Fig. 21. Fig. 21 illustrates, from the left, an information recording medium 310 storing encrypted content, a drive 330 in which the information recording medium 310 is adjusted to perform data reading, and

Petition 870180140775, of 10/11/2018, p. 82/274 a host 350 which is connected to the drive so as to be capable of data communication, and which obtains the content stored in the information recording medium 310 by the drive 330 and runs a reproduction application that performs its reproduction processing. Host 350 5 is run, for example, on an information processing device such as a PC or the like.

In Fig. 21, a MKB (media password block) and a title password file recorded in the information recording medium 310 are omitted. Host 350 retains a device password applied to the processing of the MKB, applies the MKB (media password block) and the title password file recorded in the information recording medium 310, and performs completely the same processing described with reference to Fig. 18 to calculate a title password (Kt). Even these processes are also omitted. In Fig. 21, the information recording medium 15 stores an encrypted content 313, an adjustment table 314, and a data transformation processing program 315.

With the content reproduction processing example 2 shown in Fig. 21, its characteristic point is that the processing of a block 381 shown in a dotted line 20 is performed as real-time processing, and the processing of a block 382 to be performed as batch processing before reproduction or output of content. That is, the secure VM reads the data transformation processing program 315 including command code information from the information recording medium 310 before starting playback of content or external output of content or the like, and performs decryption processing from the setting table 314 read from the information recording medium 310, or similar, based on the control of the event handler 354, and an input of the player information 355.

The setting table 314 recorded on the recording medium of

Petition 870180140775, of 10/11/2018, p. 83/274 information 310 has been subjected to obfuscation processing using AES encryption, or computing as exclusive OR computation, or similar, and secure VM 356 performs decryption processing, or predetermined computing processing according to the transformation processing program of data 315 to obtain the tuning table serving as plain text data. The processing so far is performed in a batch manner before starting content playback or external content output, or the like.

Subsequent processing is performed as real-time processing, which is performed in parallel with content playback or external content output processing. That is, the processing of content decryption in step s201, the processing of data transformation in step s202, that is, the transformation data recorded in the setting table 314 recorded in the information recording medium 310, that is, the processing data transformation in which (a) transformation data, (b) transformation data established with identifier are written in the specified positions recorded in the adjustment table 314 and, in addition, external output processing of the transformed TS (transport stream), or demultiplexing processing in step s203, that is, processing of transforming a transport stream (TS) into an elementary stream (ES), decryption processing in step s204, and these processes are performed as real-time processing in parallel with content playback or external output.

The use of such a processing sequence, even if it takes time to process the setting table 314 by the secure VM 356, performs real-time processing, which has no influence on the content reproduction, and external output processing.

(5.3) Content rendering processing example 3

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Next, a description will be made regarding content reproduction processing example 3 with reference to Fig. 22. Fig. 22 illustrates, from the left, an information recording medium 310 storing encrypted content, a drive 330, and a host 350. A MKB (media password block), a title password file, and the application processing of these are the same as in the processing example 1 described previously with reference to Fig. 18, and so their descriptions will be omitted. With the present processing example, as shown in Fig. 22, the information recording medium 310 stores an encrypted content 318 including the setting table 315. The processing of block 381 shown in a dotted Nail frame is performed as processing in real time, and the processing of block 385 shown in a dotted line square is performed as intermittent processing.

That is, with the present processing example, the setting table is sparingly saved by all certain packets within the configuration data of the encrypted content. For example, the adjustment table is stored within transport stream packages including the content with the adjustments as shown in Fig. 23. Fig. 23a illustrates the configuration of the content data. This content configuration illustrates content data made up of decrypted transport stream (TS) packets. The transport stream consists of TS packets (transport stream) of a predetermined number of bytes. The adjustment table is divided and saved in the multiple packages that are part of these TS packages. For example, the adjustment table is saved in packages TS 391, 392 etc. shown in the drawing. Examples of TS packages used to store an adjustment table include TS packages including a PMT (programmable map table) sparingly adjusted within the content.

Recorded in the split adjustment table are, like the adjustment table previously described with reference to Figs. 5 to 8, for example, data

Petition 870180140775, of 10/11/2018, p. 85/274 of transformation (or transformation data established with identifier) to perform a substitution processing with respect to the decrypted content, and the recorded position of the transformation data. However, although Figs. 5 through 8 represent the modified package positions 5 of the modified package 394 and modified package 395 have been represented with the package number of the starting position of the AV stream file, the position of the modified package of the second package is, as shown by the arrow on Fig. 22, preferably engraved with the position data indicating the relative position of the package from the first modified package 10 394 to the last modified package 395. Such a case provides an advantage, where a mistake hardly occurs in the processing of current authorization, and assembly is promptly performed, even if a restriction such as “modified package source package number 394> modified package source package number 395” is not provided.

The transformation data recorded in each of the adjustment tables has the recorded position adjusted next to the TS packages including each of the adjustment tables, as shown in Fig. 23B, for example. For example, with the example shown in Fig. 23B, packets 394 and 395 having transformation data recording regions are fitted next to packet 391 including the adjustment table. This adjustment enables data substitution processing using transformation data as continuous processing following decryption in the case of decryption and reproduction of content in real time, detection processing and analysis of TS packages by recording the adjustment table allows processing to obtain 25 the transformation data and write (overwrite) the transformation data for the position recorded in the table to be performed effectively.

With the content rendering processing example 3 shown in Fig. 22, the processing of a 381 block shown in a dotted line frame is performed as in-line processing.

Petition 870180140775, of 10/11/2018, p. 86/274 real-time, and the processing of block 383 is performed as intermittent low-frequency processing that is intermittently performed before or during playback or content production processing.

The secure VM 356 reads the data transformation processing program 315 including command code information from the information recording medium 310, and intermittently generates and produces secret parameters (Pl, P2, P3 etc.) necessary to transform the data table. adjustment recorded in the information recording medium 310 together with the content in the plain text adjustment table before or during reproduction or production processing based on the 354 event handler control, and 355 player information input. This processing is run intermittently.

The parameters (Pl, P2, P3 etc.) are computation or cryptography processing parameters applied to the split adjustment tables corresponding to content data units, for example, split adjustment tables 1, 2, 3 etc. which are sparingly recorded to content. Each of the split adjustment tables 1, 2, 3 etc. it is subjected to computation or encryption processing applying each different parameter (Pl, P2, P3 etc.), and recorded in the information recording medium.

For example, a specific example is a unique OR computation parameter (XOR) applied to setting tables 1, 2, 3, etc. The secure VM 356 performs processing to generate and intermittently produce parameters (Pl, P2, P3 etc.) necessary to transform the adjustment table 314 into a pure text adjustment table according to the data transformation processing program 315.

With real-time processing block 381, in step s301, decryption of encrypted content 318 including adjustment tables is performed, each adjustment table being separated by the

Petition 870180140775, of 10/11/2018, p. 87/274 demultiplexing processing in step s302, table restoration and data transformation processing in step s303 are performed under the control of a real-time event handler 361. Under control of the real-time event handler 361, a pure text adjustment table is obtained by executing decryption or computing the adjustment table by applying the intermittent production of parameters (Pl, P2, P3 etc.) of the secure VM 356, and data transformation processing to write the data of transformation recorded in the obtained partial adjustment table, that is, (a) transformation data, and (b) transformation data established with identifier at the specified positions recorded in the adjustment table is performed as real-time processing in parallel with reproduction processing content or external production processing.

For example, in case the parameters (Pl, P2, P3 etc.) are parameters and exclusive OR computation (XOR) for the transformation data corresponding to the predetermined partial data units of content,

As for processing table restoration in step s303, [setting table 1] (XOR) [Pl] [setting table 2] (XOR) [P2] [setting table 2] (XOR) [P2] etc.

these computations of exclusive OR computation are performed to obtain each of the plain text fitting table data. Note that with the above expressions, we can say that [A] (XOR) [B] means exclusive OR computation between A and B.

In this way, the adjustment table included in the content 318 recorded in the information recording medium is divided by the adjustment tables in which the transformation data corresponding to each portion of

Petition 870180140775, of 10/11/2018, p. 88/274 content and positional information of transformation data are recorded, and these were submitted to exclusive OR computation with the parameters (Pl, P2, P3 etc.) serving, respectively, as the exclusive secret parameters, and stored. Secure VM 356 obtains and produces this parameter 5 in succession.

The processing following the table restoration and data transformation processing in step s303 is the same processing previously described with reference to Fig. 18 and others, and is performed as real-time processing performed in parallel with the 10 reproduction processing. content and external content production. That is, the demultiplexing processing in step s304, the decryption processing in step s305, these processes are performed as real-time processing in parallel with content reproduction and external production.

With the present processing example, an arrangement is made, in which the configuration data of the adjustment table corresponding to the entire content are divided, a different parameter is correlated to each divided adjustment table, and these parameters are intermittently produced by the VM secure 356, so that even if a portion of the parameter leaks, 20 for example, it is impossible to restore all content, thereby performing more secure management of content usage. In addition, even with the present processing example, as with the other processing examples above, real-time processing that does not influence the processing of content reproduction and external production can be performed. In addition, for example, if unauthorized processing is detected during content playback, canceling the processing of the secure VM based on the unauthorized processing detection information from the event handler 354 enables the generation of the transformation data to be canceled, and allows playback

Petition 870180140775, of 10/11/2018, p. 89/274 of unauthorized content and external production are canceled halfway.

6. Example of processing of generation and reproduction 1 of a content including modified data corresponding to special reproduction

Then, a description will be made regarding the reproduction processing and content generation including modified data corresponding to the special reproduction. As can be clearly understood from the description above regarding processing examples shown in “5. Content reproduction processing ”, content reproduction needs to perform data transformation to which the adjustment table is applied. With normal content playback processing, data transformation processing can be performed without being very slow in relation to the content playback speed, but in the case of performing special content playback processing, such as high-speed forward or resume playback fast, a case sometimes occurs in which the processing of data transformation processing cannot be maintained with the high speed of content reproduction.

In particular, as described with the above (5.3) Example 3 of content reproduction processing, in the case of processing to perform computation to which a different parameter is applied for each of the split and recorded adjustment tables is necessary, additional processing time it becomes necessary for data transformation and, with a case of being able to handle high speed rate sometimes occurs. Ahead, with this reproduction of special content, a description will be given regarding the processing of generation and reproduction of content in which errors processing together with data transformation are prevented from occurring.

As described above, more effective data destruction can be accomplished by subjecting the image I of each GOP to modified data,

Petition 870180140775, of 10/11/2018, p. 90/274 as modified or similar data. If all images I included in all GOPs constituting MPEG content are adjusted as modified data, when performing special reproduction, such as high-speed reproduction, calculation of parameters, acquisition of the adjustment table, and replacement of data by transformation data recorded in the adjustment table need to be performed for each GOP and, consequently, processing is sometimes very slow in reproduction rate.

Typically, the image data that is applied to special playback, such as high speed playback to which 10 MPEG content is applied, is only I images. In other words, special playback as high speed playback is performed by selecting and playing only I images for each predetermined interval.

The use of an arrangement in which images I included in all GOPs constituting MPEG content are not adjusted as 15 modified data, that is, images I included in the GOP to be applied for special reproduction, such as high speed reproduction, are not adjusted as modified data allows the reproduction device to perform special reproduction, such as high speed reproduction, without performing calculation of parameters, acquisition of adjustment table, and replacement of data 20 by the transformation data recorded in the adjustment table.

A description of the content configuration example will be made using an arrangement in which the images I included in the GOP to be applied for special reproduction are not adjusted as modified data with reference to Fig. 24. Fig. 24A illustrates content 25 (content MPEG) to be stored in the information recording medium. The content is recorded in GOP increments consisting of images I, P and B.

The GOP 410 shown in Fig. 24A is a GOP in which images I are fitted as modified data. As shown in Fig.

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24Β, the I 411 image and the P 412 image that are adjusted as modified data are included. On the other hand, the GOP 420 shown in Fig. 24A is a GOP in which images I are not fitted as modified data. As shown in Fig. 24B, the image I 412 that is not adjusted as 5 modified data and the image P 422 that is adjusted as modified data are included.

A table or EP map (special reproduction management information table) in which the highest position of the I images that are not fitted as modified data is recorded is generated, and recorded in the information recording medium. A specific example of the special reproduction management information table or EP map will be described below.

The reproduction device for performing special reproduction, such as high speed reproduction, reads the special reproduction management information table or EP map, obtains the information and the highest position of the I images that are not set as modified data, selects only the images I constituted of these modified data, and submitted to reproduction at high speed, thus executing special reproduction, such as reproduction at high speed, without calculating the parameters, acquiring the adjustment table, and replacing data with the transformation data in the fit table.

In addition, description will be made in relation to an example of content configuration allowing special reproduction, such as reproduction at high speed, to be performed without making substitution of data 25 using data modified with reference to Fig. 25. The example described with reference to Fig 24 is an example in which only the I images within the GOP to be used at the time of special reproduction, such as high speed reproduction, of certain GOPs are not adjusted as modified data. However, reproduction is sometimes carried out using not only

Petition 870180140775, of 10/11/2018, p. 92/274 images I, but also images P and B at the time of special reproduction, such as high speed reproduction, depending on the specifications of the reproduction device.

In Fig. 25, in order to be applicable to this reproduction processing, not only the I images within the GOP to be used at the moment of special reproduction, such as high speed reproduction, but also all the included I, P and B images in a certain GOP they are adjusted as unmodified data. In other words, processing is determined in increments of OP to adjust the GOPs made up of only unmodified data.

Fig. 25A illustrates a content (MPEG content) to be stored in the information recording medium. The content is recorded in increments of GOP consisting of images I, P and B. The GOP 430 shown in Fig. 25A includes image I 431 and image P 432 which are adjusted as modified data, as shown in Fig. 25B. On the other hand, the GOP 440 shown in Fig. 25A includes the image I 441 consisting of unmodified data, as shown in 25B and, in addition, the images I, P and B included in the GOP are all adjusted as unmodified data.

A table or EP map (special reproduction management information table) in which the highest position of the I images of that OP, including unmodified data, is recorded, and recorded in the information recording medium. The reproduction device for performing special reproduction, such as high speed reproduction, reads the special reproduction management information table or EP map, obtains the information and the highest position of the I images that are not set as modified data, selects only the I images made up of these modified data, and submitted to high speed reproduction, thus executing special reproduction, such as high speed reproduction, without calculating the parameters, acquiring the adjustment table,

Petition 870180140775, of 10/11/2018, p. 93/274 and replacement of data with the transformation data in the adjustment table.

In addition, as shown in Fig. 26, all I images within all GOPs can be adjusted as unmodified data. The GOP 450 shown in Fig. 26A includes the image 1451 which is set as 5 unmodified data and the P 452 image which is set as modified data, as shown in Fig. 26B. In addition, the GOP 460 shown in Fig. 26A includes the I 461 image consisting of unmodified data and the P 452 image which is adjusted as modified data, as shown in Fig. 26B. In this way, the images I included in all GOPs are all 10 adjusted as unmodified data.

The execution of these adjustments allows the reproduction device to select at least I images only and perform special reproduction, such as reproduction at high speed, without performing calculation of the parameters, acquisition of the adjustment table, and replacement of data with the transformation data 15 registered in the adjustment table. In this case, the higher position information of the I images that are not adjusted as modified data does not need to be obtained, so there is no need to read a special reproduction management information table or EP map to obtain the position information of a given image I.

However, adjusting I images as unmodified is not desirable from the perspective of image destruction, and therefore adjusting all I images as unmodified is especially effective if, for example, it includes modified data established with an identifier. and transformation data established with an identifier and not including violated data.

With the configurations described with reference to Figs. 24 and

25, the table or EP map (special reproduction management information table) in which the positions of the I images that are not adjusted as modified data are recorded if necessary. A description will be made regarding the settings of this table and EP map with

Petition 870180140775, of 10/11/2018, p. 94/274 reference to Fig. 27.

Fig. 27 illustrates two examples of the special reproduction management information table in which the positions of the I images that are not adjusted as modified data are recorded. Fig. 27A is a table in which information of number of images I without data modification is recorded [MT: Media transform], and package number of the highest image I without data modification (MT).

is registered. Note that SPN is the source package number, and is information indicating a package number.

The reproduction device obtains this special reproduction management information table from the information recording medium, and obtains the positions of the images I, not including data modification, thus executing special reproduction, such as high speed reproduction, without transformation data by performing reproduction processing consisting of these images I only.

Fig. 27B is a table in which information on number of images I without data modification is recorded [MT: Media transform], package number of the highest image I without data modification (MT), and

PTS of image I without data modification (MT). Note that PTS is a time stamp (presentation time stamp) indicating presentation time information corresponding to a source package.

The reproduction device obtains this special reproduction management information table from the information recording medium, and obtains the positions of the images I, not including data modification,

Petition 870180140775, of 10/11/2018, p. 95/274 executing, in this way, special reproduction, as reproduction at high speed, without transformation of data by the execution of reproduction processing constituted of these images I only. With the table shown in Fig. 27B, the time stamp indicating the reproduction time information corresponding to the image package I without data modification (MT) can be obtained from the table, thus facilitating that a certain image I only , according to the special reproduction rate, is selected from images I without data modification (MT) and reproduced.

The special reproduction management information table shown in Fig. 28 illustrates an example of a table in which information of * higher number of images I without data modification is recorded [MT: Media transform], and * designation information of EP map corresponding to the highest image package i without data modification (MT).

The reproduction device for performing special reproduction, such as high-speed reproduction, obtains EP map designation information (EP map ID) corresponding to the highest package of I images without data modification (MT) from the management information table. special reproduction shown in Fig. 28, then obtaining an EP map based on EP map designation information, and obtaining the position of image I without data modification (MT) of the EP map.

Description of an EP map will be made with reference to Figs. 29 and 30. As shown in Fig. 29, an EP map (EP_map) 501 is given included in a clip information file (clip information). Description regarding the detection of an image position I based on the EP map will be made with reference to Fig. 30. Fig. 30A illustrates a clip AV stream, where each rectangle illustrates a 192-bit source packet. A time stamp is set for each source package, where the processing time of

Petition 870180140775, of 10/11/2018, p. 96/274 reproduction is stipulated.

Fig. 30B illustrates the detailed configuration of source package no. (XI). A source package includes a TP_extra header, and a transport package, and the transport package includes various types of header information, and I-PICH data, etc. serving as MPEG2 entity data.

The clip information shown in Fig. 30C includes an EP map as described above. The EP map, as shown in the drawing, includes each data from [PTS_EP_start], [SPN_EP_start], and [I-end_position_offset]. The meaning of each data is given below:

PTS_EP_start: time stamp (presentation time stamp) corresponding to a source package including a sequence header

SPN_EP_start: the highest address of the source packet including a string header

I_end_position_offset: the deviation between the source package including a sequence header and the source package including the end of the image I.

Fig. 30D illustrates these data relationships.

That is, as shown in Fig. 30B, the configuration of data included in a source package is stipulated, obtaining each data from [PTS_ EP_start], [SPN_EP_start], and [I_end_position_offset] shown in Fig. 30C allows the image position I within the source package is obtained based on these data.

The reproduction device for performing special reproduction, such as high-speed reproduction, obtains EP map designation information (EP map ID) corresponding to the highest package of I images without data modification (MT) from the management information table. special reproduction shown in Fig. 28, then obtaining an EP map based on the EP map designation information, and obtaining the positions of the I images without data modification (MT) based on

Petition 870180140775, of 10/11/2018, p. 97/274 on the EP map to perform reproduction, thus enabling special reproduction, such as reproduction at high speed, consisting only of I images without data modification, and special reproduction without data transformation being performed.

In addition, Fig. 31 illustrates an EP map configuration to enable special reproduction, such as high-speed reproduction, consisting only of I images without data modification by applying modification to the EP map itself, and in reference to the EP map only without apply the special reproduction management information table described with reference to Figs. 27 and 28. In the EP map shown in Fig. 31, the following data is recorded:

* number of EP maps, * highest number of I image pack (SPN: Source pack number), * PTS (presentation time stamp) of image I, and * indicator indicating the presence of data modification (MT) .

are registered.

Of these data, * number of EP maps, * highest number of I image pack (SPN: Source pack number), * PTS (presentation time stamp) of image I, data is included in the EP map as it has been until now, and the characteristic point is the fact that * indicator indicating the presence of data modification (MT) is additionally adjusted.

* indicator indicating the presence of data modification (MT) is an indicator to enable determination of whether or not by

Petition 870180140775, of 10/11/2018, p. 98/274 unless the images I included in the GOP designated with the EP map are adjusted as modified data. For example, the value of this indicator indicates that

Indicator value ()) = unchanged, and

Indicator value (1) = with change.

The reproduction device for performing special reproduction, such as high speed reproduction, refers to the EP map indicator shown in Fig. 31, determines, in relation to whether or not the images I included in the GOP designated with EP map are modified data , selects the GOP in which the indicator indicating unmodified data is adjusted, and obtains the positions of the I images without data modification (MT) based on the EP map to perform reproduction, thus enabling special reproduction, such as reproduction a high speed, consisting only of I images without data modification, and allowing special reproduction without data transformation to be performed.

Thus, the application of the special reproduction management information table described with reference to Figs. 27 and 28, or the EP map described with reference to Fig. 31, allows the information processing device to perform special content reproduction, such as high speed reproduction, to readily select and obtain image data as I images that are not modified, that is, not adjusted as modified data, to perform special reproduction, as high-speed reproduction consisting only of images without data modification, and to perform special reproduction without data transformation.

Note that the special reproduction management table described with reference to Figs. 27 and 28, or the EP map described with reference to Fig. 31, is recorded in the information recording medium together with the content. Fig. 32 illustrates the configuration of a device for manufacturing an information recording medium. The configuration

Petition 870180140775, of 10/11/2018, p. 99/274 of the device shown in Fig. 32 is a configuration in which a reproduction management information generating unit 521 to perform processing to generate an EP table or map enabling the position information of unmodified I images to be obtained, is added to the device described with reference to Fig. 3, and the other configurations are almost the same as the settings described with reference to Fig. 3.

The reproduction management information generation unit 521 generates the special reproduction management table described with reference to Figs. 27 and 28, or the EP map described with reference to Fig. 31. A data recording unit 39 performs the processing to record the EP table or map that enables the positional information of the unmodified I image generated by the unit of reproduction management information generation 521 to be acquired in an information recording medium.

Note that the modified data positioning unit 33 determines a modified data position that serves as the modified data adjustment position using, for example, processing to select certain I images alone, processing not to select any I images as modified data, or the equivalent, according to each processing mode described with respect to Figs. 24 to 26.

The modified data generation unit 37 selects images I that serve as modified data and images I that serve as unmodified data from multiple images I included in data encoded in MPEG respectively according to the information to be adjusted in the table of special reproduction management described with reference to Figs. 27 and 28, or the EP map described with reference to Fig. 31, and submits only the selected images I as modified data for data modification processing to generate modified data.

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The modified data generation unit 37 establishes, from the multiple images I included in the data encoded in MPEG, the images I that serve as unmodified data for each predetermined cycle (N) to perform the processing to generate modified data. Note that, as for an example configuration to establish non-modified images for each predetermined cycle, the description will be made in detail with [7. Example of generation and reproduction processing 2 of a content that includes modified data corresponding to the special reproduction] described later.

In the following, a description will be made with respect to the reproduction sequences in the event that the information processing device performs the content reproduction processing with respect to Figs. 33 to 35. Specifically, these three types of content playback sequence will be described:

Fig. 33: normal reproduction processing, which is accompanied by data transformation,

Fig. 34: special reproduction processing (high speed), which is accompanied by data transformation, and

Fig. 35: special reproduction processing (high speed), not accompanied with data transformation through the application of the special reproduction management information table or EP map above.

First, the description will be made with respect to the normal content playback sequence accompanied by data transformation with respect to Fig. 33. The processing flow in Fig. 33 corresponds to the content reproduction processing previously described in relation to Fig. 22 , the processing in block 381 shown with the dotted line frame in Fig. 22, that is, the processing of the host's content reproduction processing unit to perform processing in

Petition 870180140775, of 10/11/2018, p. 101/274 real time is performed as processing in steps S401 to S407 in the flow shown in Fig. 33, and the processing of secure VM 356 to perform processing in block 385 shown with the dotted line frame in Fig. 22 is equivalent processing in step S410 of flow 5 shown in Fig. 33.

First, in step S401, the information processing device to perform content playback selects content to be played back from the content recorded in the information recording medium, and reads the clip information file that corresponds to the selected content to be played. As previously described with reference to Fig. 29, the clip information file stores an EP map, and the image I positions within the source packages constituting an AV stream serving as content to be played, and the [SPN] and [PTS] that serve as playing time information are recorded on the 15 EP map.

In step S402, the information processing device to perform content reproduction obtains the image I positions within the source packages constituting an AV stream that serves as content to be reproduced, and the [SPN] and [PTS] that serve as play time information 20 from the EP map included in the clip information file. Then, in step S403, the information processing device issues to the secure VM a request for calculating the parameters that are necessary for data replacement processing using the transformation data to which the adjustment table is applied. Note that the present processing example is a processing example that corresponds to the content reproduction processing example described in relation to Fig. 22, the restoration of the adjustment table is performed by applying the parameters sequentially (Pl, P2, P3, and so on) that serve as the secret parameters supplied from the secure VM 356

Petition 870180140775, of 10/11/2018, p. 102/274 as shown in Fig. 22 when replacing the content to which the adjustment table is applied, and the transformation data and transformation data established with identifier are obtained from the restored adjustment table.

The processing in step S403 is the processing to ask the secure VM to perform this parameter calculation, the secure VM calculates the parameters according to the request in step S410, and supplies them sequentially to the host's reproduction processing unit to perform the content playback. With this parameter calculation and supply processing in the secure VM, it is necessary for the reproduction processing unit to receive the parameters within a sufficient time for the playback time of a content, that is, enabling data replacement. In other words, the supply of the parameter from the secure VM needs to be received by the time of execution of the data transformation processing step in step S406 in the flow shown in Fig. 33.

In step S403, after issuing the parameter calculation command to the secure VM, the host's content playback processing unit reads content to be played (for example, AV stream data) from the video recording medium. step information

5404, and performs the description processing of the content read in step

5405. This description processing is the description processing previously described with reference to Figs. 18 to 22.

Following this description processing, the content playback processing unit submits the decrypted content to the data transformation processing in step S406. At the time of this data transformation processing, as previously described in relation to Fig. 22, the content reproduction processing unit sequentially applies the parameters (Pl, P2, P3, and

Petition 870180140775, of 10/11/2018, p. 103/274, and so on) supplied from the secure VM 356 to perform the restoration of the adjustment table (for example, computation OR exclusive through the application of the parameters), obtain transformation data and transformation data established with identifier from of the restored adjustment table, and performs content replacement processing.

The content playback processing unit then performs decoding processing and outputting content in step S407. Decode processing is, for example, MPEG decoding processing. The content reproduction processing unit repeatedly performs this processing (steps S401 to S407) until the reproduction of the end of content configuration data (end of title) or the user between suspending content playback (Yes in step S411 ). In step S411, in the event of detection of the end of the title or entry of suspension of content playback by the user, processing ends. The one above is the sequence of playback of content accompanied by data transformation.

Next, the description will be made with respect to the execution sequence of the special reproduction processing (high speed), which is accompanied by the data transformation, with respect to Fig. 34. The processing flow in Fig. 34 also corresponds to the processing content reproduction previously described with reference to Fig. 22, the processing in block 381 shown with the dotted line frame in Fig. 22, that is, the processing of the host's content reproduction processing unit to perform the processing in real time is performed like processing in steps S501 to S507 in the stream shown in Fig. 34, and processing the secure VM to perform processing in block 385 shown with the dotted line frame in Fig. 22 is equivalent to processing in step S510 of the flow shown in Fig. 34.

First, in step S501, the data processing device

Petition 870180140775, of 10/11/2018, p. 104/274 information to perform content playback selects content to be played from the content recorded in the information recording medium, reads the EP map that corresponds to the content selected to be played and, in step S502, obtains the positions of image I within the 5 source packages constituting an AV stream that serves as content to be reproduced, and the [SPN] and [PTS] that serve as reproduction time information from the EP map, and selects the images to be applied to special reproduction (high speed).

Then, in step S503, the information processing device sends the secure VM a request to calculate the parameters that are necessary for the data transformation processing to which the adjustment table is applied in relation to the images to be reproduced that are applied to high speed playback. The secure VM calculates the parameters according to the request in step S510, and supplies them sequentially to the host's reproduction processing unit to perform content reproduction. With this parameter calculation and supply processing in the secure VM, it is necessary for the reproduction processing unit to receive the parameters within enough time for the playback time of a content, in the present example, 20 within enough time for the time high speed reproduction reproduction that enables data replacement, and this requires processing in a shorter time than the processing previously described with respect to Fig. 33. In other words, supplying the parameter from the secure VM needs be received by the data transformation processing execution time in step S506 in the flow shown in Fig. 34, and this allowed time is reduced depending on the high speed reproduction rate.

In step S503, after issuing the parameter calculation command to the secure VM, the reproduction processing unit

Petition 870180140775, of 10/11/2018, p. 105/274 content of the host reads the encrypted data that corresponds to the selected images (images selected in step S503) constituting the content to be reproduced (for example, AV stream data) from the information recording medium in step S504, and performs decryption processing of the data recorded in step S505. This decryption processing is the decryption processing previously described with reference to Figs. 18 to 22.

Following this decryption processing, the content playback processing unit submits the decrypted content to data transformation processing in step S506. At the time of this data transformation processing, as previously described with reference to Fig. 22, the content reproduction processing unit sequentially applies the parameters (Pl, P2, P3 and so on) supplied from the secure VM to execute restoring the fit table (for example, computation OR exclusive by applying the parameters), obtains the transformation data and transformation data established with identifier from the restored adjustment table, and performs content replacement processing .

Next, the content playback processing unit performs the decoding and output processing of content in step S507. Decode processing is, for example, MPEG decoding processing. The content playback processing unit repeatedly performs this processing (steps S501 to S507) until the reproduction of the end of content configuration data (end of title) or the user enters the suspension of content playback (Yes in step S511 ). In step S511, in the event of detection of the end of the title or entry of suspension of content playback by the user, processing ends. The one above is the sequence of playback of content accompanied by data transformation.

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Thus, in the event of the execution of the special reproduction (high speed) of a content accompanied with data transformation, calculation of the parameters, restoration of the adjustment table to which the parameters are applied, and processing of substitution of the transformation data recorded in the table adjustment settings, this processing needs to be performed in order to be in the playing time and, if the reproduction rate increases, this processing cannot be maintained with the playing time and, consequently, a situation where the content playback for can to occur.

In order to prevent this situation, as previously described with reference to Figs. 24 to 31, an arrangement becomes efficient where certain images I or the equivalent are established as normal content that does not require transformation, that is, unmodified data, the information regarding these unmodified images is recorded in the information table of special reproduction management or EP map and, at the time of reproduction processing, special reproduction processing (high speed) that is not accompanied by any data transformation is performed through the application of the management information table special reproduction or EP map.

A description will be made with respect to a sequence to perform special reproduction processing (high speed) not accompanied by data transformation through the application of the special reproduction management information table or EP map with respect to Fig. 35. The processing flow in Fig. 35 also corresponds to the content reproduction processing described previously with respect to Fig. 22, the processing in block 381 shown with the dotted line frame in Fig. 22, that is, the processing of the processing unit. host content playback processing to perform real-time processing is performed as processing in the steps

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S601 to S605 of the flow shown in Fig. 35. The present processing example is the special reproduction processing (high speed) not accompanied with data transformation, so the parameter calculation by the secure VM 356 becomes unnecessary.

First, in step S601, the information processing device for performing content playback selects content to be played back from the contents recorded in the information recording medium, and reads the clip information file that corresponds to the selected content to be reproduced. Next, in step S602, based on the EP map within the clip information file, or on the special reproduction management information table previously described with respect to Figs. 27 and 28, the information processing device obtains the information in relation to the I images without data modification, that is, the positions of the I images without data modification and [SPN] and [PTS] that serve as run time information. playback, and selects the images to be applied for special playback (high speed) from only the unmodified images.

In step S603, the information processing device reads the encrypted data that corresponds to the selected images (images selected in step S602) constituting the content to be reproduced (for example, AV stream data) from the information recording medium, and performs decryption processing of the data recorded in step S604. This decryption processing is the decryption processing previously described with reference to Figs. 18 to 22.

Then, following this decryption processing, the information processing device performs the decoding and content output processing in step S605. Decode processing is, for example, MPEG decoding processing. The information processing device repeatedly performs this

Petition 870180140775, of 10/11/2018, p. 108/274 processing (steps S601 to S605) until the playback of the content data of the end of content (end of the title) or the user enters the suspension of the content playback (Yes in step S611). In step S611, in the event of detection of the end of the title or the entry of suspension of the content playback by the user, the processing ends. The one above is the sequence of reproduction of content not accompanied by data transformation.

In this way, the processing of the calculation of the parameters, restoration of the adjustment table to which the parameters are applied, and 10 processing of substitution of the transformation data registered in the restored adjustment table need not be performed by means of the application of the information table. special reproduction management or EP map to perform special reproduction processing (high speed) unaccompanied by data transformation and, even if the reproduction rate increases, reproduction of non-stop content can be performed.

7. Example of processing of generation and reproduction 2 of a content that includes modified data corresponding to the special reproduction

In the following, as an example of generation processing and reproduction 2 of a content that includes modified data corresponding to the special reproduction, a description will be made with respect to a configuration example where the establishment of images that have a certain interval (N) that they are stipulated in advance as unmodified data enables unmodified images to be selected effectively, 25 thereby executing special reproduction processing (high speed) unaccompanied with data transformation. That is, as previously described with reference to Figs. 6 to 8, blocks of the adjustment table are obfuscated so as not to be readily decrypted, and, with high speed reproduction such as 2x, the decryption of the

Petition 870180140775, of 10/11/2018, p. 109/274 obfuscation of the same can be performed even if there is a relatively low CPU capacity of the device, but at the time of very high speed reproduction, such as 100x or the equivalent, the decryption of the obfuscation of the same is sometimes slow too much for the reproduction rate. To that end, as described below, the present processing example enables special reproduction (high speed) processing not accompanied by data transformation without the application of the special reproduction management information table above.

The information processing device to perform content reproduction is configured so that a host reproduction program obtains interval information from the images I established as unmodified data as cycle information (N) at the time of processing of initialization in increments of the title that corresponds to a medium (medium of recording information) or content. Alternatively, an arrangement can be made where the value of the cycle information (N) is recorded in a database file (for example, clip information file) of an information recording medium, and the N can be obtained prior to reproduction. Using these adjustments allows the reproduction processing unit to perform a content reproduction to obtain the range of the images I established as unmodified data based on the cycle information (N), and to perform the reproduction processing by selecting the corresponding images I this interval (N) enables special reproduction (high speed) that does not require data transformation to be performed.

Note that when performing this processing example, it is necessary to determine a rule in order to accurately point out the images I that have not undergone any data transformation beforehand from the value of the interval (N) between the images I established as unmodified data. For example, a rule like the following is

Petition 870180140775, of 10/11/2018, p. 110/274 established.

The first image I of the content must be unmodified data.

I images must be established as non-modified data in an N-piece cycle.

The information indicating the I images in which the GOP I images are established as unmodified data must be recorded on the EP map.

Suppose that the I images of a part of the GOPs are established as unmodified data based on a predetermined rule, and that special reproduction must be performed using an EP_MAP in which the information indicating the unmodified data is not recorded.

Note that an arrangement can be made where the interval (N) of the images I established as unmodified data is established with a different value for each content, or an arrangement can be made where the interval (N) is determined uniformly as a standard common to all content. For example,

N = 10

Thus, if the range of unmodified I images that is common to all content is determined, the playback device can perform special playback that does not require any data transformation processing by executing I image selection using the range N = 10 in the special reproduction of all contents stored in the information recording medium.

If the playback device for performing cryptographic processing knows the range (N) of the images I set as unmodified data, the playback device can easily obtain the positions (SPN) and time stamp (PTS) of the non-modified images. modified

Petition 870180140775, of 10/11/2018, p. 111/274 based on the EP map, and you can perform special reproduction by collecting these I images only. Note that the I images to be selected in the special reproduction can be selected not only with an interval of 10, but also with 20, 30 to 100, or several similar intervals, thus manipulating different reproduction rates.

A description will be made regarding an example of specific content adjustment and an example of reproduction processing with reference to Fig. 36 and the subsequent drawings. Fig. 36A illustrates content submitted to MPEG encoding, and is recorded content, recorded in the information recording medium. One block corresponds to a GOP.

Each GOP includes, as described above, I images, B images and P images, and special reproduction such as high-speed reproduction can be performed by reproduction in which I images are selected from the GOP for each predetermined interval, for example. The example shown in Fig. 36A is an example in which the images I including these respective GOPs are fitted as unmodified data. With the example shown in Fig. 36A, the interval (n) of the images I adjusted as unmodified data, that is, the cycle information N is

N = 5.

With the EP map, as information related to the images I included in each GOP as described above, * higher number of packets of images I (SPN: number of source packets) and * PTS (presentation time stamp) of image I, this information is recorded, and the information processing device to perform special content reproduction obtains the image information I recorded on the EP map at a predetermined interval based on the cycle (N), and performs reproduction by selecting images I, selecting, therefore, only the images I adjusted as

Petition 870180140775, of 10/11/2018, p. 112/274 unmodified data, and allowing reproduction without effecting data transformation.

Fig. 36B illustrates the registration information of the EP map. Fig. 36B illustrates the correlation between a table number (I) within the EP map, the highest number of image packets I (SPN), and PTS (presentation time stamp) of image I. This information is stored in the EP map. The table number (I) within the EP map, with this example, matches a number of GOPs. The present example illustrates an example in which the image I information of all GOPs is stored in the EP map. Note that the image I information for all GOPs is not always stored on the EP map. Such an example will be described below with reference to Fig. 37.

With the example shown in Fig. 36B, the image information I of all GOPs is stored in the EP map, the table number [I] within the EP map coincides with a number of GOPs, which is equivalent to the number of GOPs within of the content shown in (a). An I image is stored in each GOP, so that the number of GOPs is equivalent to the highest image I sequence number within the content.

That is, 0, 5, and 10 of the table number I recorded on the EP map are information relating to unmodified I images and, specifically, * higher number of I image packets (SPN: source package number) and * PTS (presentation time stamp) of image I, this information is recorded, and the information processing device to perform special content reproduction obtains the image I information recorded on the EP map in an interval cycle (N = 5) , and selects information for every five entries (5 GOPs) from the EP map table, thereby enabling unmodified I images to be selected and reproduced, and allowing for special reproduction,

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100 as high speed reproduction, only of images I set as unmodified data, to be performed.

That is, if reproduction of a medium in which non-modified I images are recorded in a cycle interval is performed using the EP map prepared for special reproduction, or similar, special reproduction can be performed without providing an indicator or similar on the EP map. In addition, for example, if the display period for a GOP is set to 0.5 seconds, performing playback for every five GOPs allows I images for every 2.5 seconds to be displayed one after the other, thereby performing , high speed playback. Furthermore, not only in the case of high speed reproduction in which the reproduction device obtains all unmodified I images with the present example, but also in the case of unmodified I images existing in a cycle of N = 5, if, say, these images to be reproduced are selected and displayed in a cycle of N = 10, displaying images for every ten GOPs allows images for every 10 seconds to be displayed, thus making reproduction at even greater speed depending on a period displaying an image.

Next, a description will be made of an example in the case of not storing image information I corresponding to all GOPs in the EP map with reference to Fig. 37. As described above, the image information I of all GOPs is not always is stored in the EP map. Fig. 37 illustrates an example of registration information for such an EP map, for example.

Fig. 37A is a diagram illustrating the correlation between the GOPs in the recorded content of the information recording medium and the table number recorded on the EP map. The highest GOP 0 is registered on the EP map, and its registration information is stored in the table number [I = 0] of the EP map. However, the following GOP has no record information 9 in the

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101 EP map. The next GOP 2 is registered on the EP map, and its registration information is stored in the table number [I = 1] of the EP map. Thus, with the present example, the EP map is configured with the GOPs constituting the content, registration information relating to all other GOPs is recorded.

With the example of content recorded in Fig. 37A, GOP 0 (EP 0 map) and GOP 10 (EP 5 map) are GOPs in which images I (or the entire GOP) are adjusted as unmodified data.

Fig. 37B illustrates the EP map registration information. In the case of selecting unmodified images of the registration information of this EP map, as with the case described with reference to Fig. 36, the cycle information (N) is obtained, and information is selected from the EP map according to a cycle of N = 5. That is, the table numbers 0, 5 etc. are selected to obtain image information I, and reproduction is performed. This example is configured of which the actual content (content shown in Fig. 37A), an unmodified I image is selected for every 10 GOPs. That is, the information processing device for performing content reproduction based on the EP map obtains the cycle information related to the unmodified image I corresponding to the registration table number of the EP map, and performs reproduction.

The selection of information for each 5 entries (5 GOPs) of the EP map table allows selection and reproduction of non-modified I images to be executed, thus making special reproduction, such as high speed reproduction, only of I images adjusted as data. unmodified.

Description will be made with reference to Fig. 38 relative to an example of processing the information processing device to perform special reproduction, such as high speed reproduction, by obtaining unmodified I image information with reference to the EP map of a content in the which unmodified I images are adjusted in one

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102 firm cycle. The information processing device for performing special reproduction, such as high speed reproduction, first obtains the EP map shown in Fig. 38A. As previously described with reference to Fig. 29 and others, the EP map (EP_map) is data included in the clip information file (clip information), and the information processing device for performing reproduction processing obtains the EP map from the clip information file corresponding to an AV data stream to be played.

The EP map, as shown in Fig. 38A includes the following information:

* number of tables on the EP map * highest number of I image packets (SPN: Source packet number), and * PTS (presentation time stamp) of image I.

The number of EP map tables is the number of the table number [I] of the EP map described with reference to Figs. 36 and 37, and a number equal to or less than the number of GOP is taken.

The diagram specifically illustrating the registration information of the EP map of Fig. 38a is data shown in Fig. 38B, which illustrates the correlation between a table number (I) within the EP map, the highest number of I image packets (SPN ), and PTS (presentation time stamp) of image I. Let's say that the information related to images I adjusted as unmodified data is the table number (I) = 0, 5, 10 etc.

The playback device for performing special playback, such as high speed playback, obtains cycle information (N = 5) using one of the selection modes in order to obtain from the secure VM, or obtain from the content attribute information recorded in the middle of recording information, or using a predetermined fixed value, selects image information I from the table number (I) = 0, 5, 10 etc. according to the cycle obtained

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103 (N = 5), creates a virtual EP map consisting of the selected image I information shown in Fig. 38C, for example, and performs reproduction processing consisting only of the images I selected based on this EP map. According to this processing, reproduction processing can be performed without performing data transformation.

Fig. 39 illustrates an example in the case where all the image information I recorded on the EP map is information relating to the images I corresponding to unmodified data. The EP map in Fig. 39A, as well as Fig. 38A, includes the following information:

* number of EP map tables, * highest number of I image pack (SPN: Source pack number), and * PTS (presentation time stamp) of image I.

The drawing specifically illustrating the registration information of the EP map of f 39A is from data shown in 39B, which illustrates correlation between a table number (I) within the EP map, the highest number of I image packets (SPN), and PTS (presentation time stamp) of image I. Let's say that the information related to images I adjusted as unmodified data is the entire table number (I) = 0, 1,2 etc.

The playback device for performing special playback, such as high speed playback, obtains cycle information (N = 1) using one of the selection modes, such as to obtain from the secure VM, obtain from the content attribute information recorded on the recording medium of information, or use a predetermined fixed value, selects the image information I from the table number (I) = 0, 1,2 etc. according to the cycle (N = 1) obtained, it creates a virtual EP map consisting of the selected image I information shown in Fig. 39C, for example, and performs reproduction processing consisting only of the images I selected based on this EP map. According to this processing, the reproduction processing

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104 can be executed without performing data transformation.

Note that with the present example, the cycle is N = 1, so reproduction can be performed based on the original EP map information shown in Fig. 39B without creating a virtual EP map consisting of 5 selected image information shown in Fig. 39C. Even in this case, special reproduction can be performed without data transformation, and without creating a virtual map. In addition, from the perspective of image destruction, adjusting I images as modified is desirable, but from the perspective of high speed reproduction, with a device that selects only I images and displays I images in order, the weight of functionality processing increases. In this way, both image destruction and special reproduction can be achieved by modifying processing being carried out with respect to I images not registered on the EP map, and not making processing modification on the I 15 images registered on the EP map.

Next, a description will be made with reference to the flows in Figs. 40 to 43 related to a processing sequence to perform special reproduction (high speed) not accompanied by data transformation by applying unmodified image data set for 20 each predetermined cycle (N). Note that, as described above, if special reproduction processing (high speed) is relatively slow speed high speed reproduction (for example, 2x) which has a margin for obfuscation decryption, there is no need to select unmodified I images as shown in the following flow, control can be done in order to select even modified images in a range in which the processing time is managed.

The processing flow shown in Fig. 40 is an example of processing in the event that the reproduction processing unit ((reproduction processing application program)) of the host

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105 information processing device to perform content reproduction obtains cycle information (N) equivalent to the range of images I adjusted as unmodified data from the secure VM at the time of performing initialization processing in title increments corresponding to a medium ( means of recording information) or content. First, in step s701, the reproduction processing unit ((reproduction processing application program)) of the host obtains cycle information (N) equivalent to the range of images I adjusted as unmodified data from the secure VM. Step s701 shows the processing of the secure VM, in which the secure VM obtains the cycle information (N) from the adjusted secure information corresponding to the recorded content of the information recording medium, and provides it to the reproduction processing unit (( program) reproduction processing application).

In step s702, the reproduction processing device, which obtained the cycle information (N), based on the EP map within the clip information file, obtains information related to the I images without modifying the data, that is, the positions of the I images without data modification and [SPN] and [PTS] serving as reproduction time information, and selects the images to be applied for special reproduction (high speed) of unmodified I images only.

Then, in step S703, the playback processing device reads the encrypted data corresponding to the selected images (images selected in step s702) constituting content to be reproduced (for example, AV data stream) from the information recording medium, and performs decryption processing of the data read in step s704. This decryption processing is the decryption processing previously described with reference to Figs. 18 to 22.

Following this decryption processing, the

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106 playback processing device performs decryption processing and produces content in step s705. Decryption processing is, for example, MPEG decoding processing. The playback processing device repeatedly performs these processes (steps s701 to s705) until the playback of the content configuration data ends (end of the title) or the user enters suspending the content playback (YES, in step s711) . In step s711, in the case of end of title detection or entry of suspension of content playback by the user, processing ends. The above is the special playback sequence (high speed) of content not accompanied by data transformation.

In this way, special reproduction processing (high speed) not accompanied by data transformation can be performed without using the special reproduction management information table by applying cycle information corresponding to the image information I set as unmodified data.

The processing flow shown in Fig. 41 illustrates the processing sequence in case the range of images I set as unmodified data is set as the fixed value in the system, and hand modification is performed for each content, but in a firm cycle (N).

First, in step s721, the reproduction processing unit (reproduction processing application (program)) of the host obtains cycle information (N) equivalent to the image interval I, which is set as the fixed system value. This cycle information can be obtained with various types of techniques, such as obtaining the fixed value serving as the established value that is set in the reproduction processing application (program), obtaining the fixed value information recorded in the information recording medium, get the fixed amount

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107 established in the memory of the information processing device, or similar, for example. S712a indicates cycle information data (N) that can be obtained with these processes.

In step s722, based on the EP map within the clip information file, the reproduction processing device, which obtained the cycle information (N), obtains information relating to images I without data modification, that is, the positions of images I without data modification and [SPN] and [PTS] serving as reproduction time information, and selects the images to be applied for special reproduction (high speed) only of unmodified images. The processing in the following steps s623 to s731 is the same as previously described with reference to Fig. 40 and, consequently, its description will be omitted.

The processing flow shown in Fig. 42 illustrates an example in which the range of images I adjusted as unmodified data is adjusted to be changeable for each content. First, in step s741, the reproduction processing unit ((program) reproduction processing application) of the host obtains the cycle information (N) equivalent to the range of images I adjusted as unmodified data in the EP map record table of the Secure VM.

The cycle information is equivalent to the cycle information in the EP map registration table. For example, in the EP map previously described with reference to Fig. 38, cycle information is taken (N = 5), and in the EP map previously described with reference to f 39, cycle information is taken (N = 1) . Step s741a shows the processing of the secure VM, in which the secure VM obtains the cycle information (N), which is equivalent to the information and range of unmodified image information within image information I recorded in the registration table of the EP map, of the adjusted secure information corresponding to the recorded content of the information recording medium, and provides it to the data processing unit

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108 reproduction ((program) reproduction processing application).

In step s742 based on the EP map within the clip information file, the reproduction processing device, which obtained the cycle information (N), obtains information about the GOPs or I images without modifying the data, that is, the information positions of GOP or I images without data modification and [SPN] and [PTS] serving as reproduction time information, and selects the images to be applied for special reproduction (high speed) of unmodified images only. The processing in the following steps s743 to s751 is the same processing previously described with reference to Fig. 40 and, consequently, its description will be omitted.

The processing flow shown in Fig. 43 illustrates the processing sequence in the event that the range of images I adjusted as unmodified data is set as the fixed value of the system, and modification is not carried out for each content, but in a firm cycle.

First, in step s761, the host's reproduction processing unit ((program) reproduction processing application) obtains cycle information (N) equivalent to the range of images I set as unmodified data in the map record table. EP.

In order to obtain this cycle information (N), several types of techniques are applicable, such as obtaining the fixed value serving as the established value that is adjusted in the reproduction processing application (program), obtaining the fixed value established in the memory of the information processing device, or similar, for example. S761a indicates cycle information data (N) that can be obtained with these processes.

The cycle information is equivalent to the cycle information in the EP map registration table. For example, on the EP map previously

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109 described with reference to Fig. 38, the cycle information is taken (N = 5), and in the EP map previously described with reference to Fig. 39, the cycle information is taken (N = 1). In step s762, based on the EP map within the clip information file, the reproduction processing device, which obtained the cycle information (N), obtains information regarding GOPs or images I without modifying the data, that is, the information positions of GOP or I images without data modification and [SPN] and [PTS] serving as reproduction time information, and selects the images to be applied for special reproduction (high speed) of unmodified I images only . The processing in the following steps s763 to s771 is the same processing previously described with reference to Fig. 40 and, consequently, its description will be omitted.

Fig. 44 illustrates a block diagram illustrating the functions of the information processing device (reproduction device) for obtaining the special reproduction management information table described with reference to Figs. 27 and 28, or the EP map described with reference to Fig. 31, the cycle information (N) described with reference to Figs. 36 to 43, and perform special playback, such as high speed playback.

An unmodified I image selection unit 721 performs processing to select I images serving as unmodified data of a content to be played. This processing is performed as processing based on a special reproduction management information table 701 corresponding to the content to be reproduced (for example, tables shown in Figs. 27 and 28), or an EP 702 map (for example, EP map shown in Fig. 311), or cycle information (N) 703. Note that this information is obtained by directly reading the information recording medium, or reading via the secure VM.

The unmodified I21 image selector unit performs

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110 processing to select an I image for each predetermined cycle, and then select I images served as unmodified data. Specifically, the unmodified I image selector unit 721 performs processing to obtain cycle information equivalent to the interval of 5 GOPs or I images consisting of unmodified data such as the cycle information from the EP map record table, and obtain the information from the images I adjusted as unmodified data from the EP map based on the cycle information. In addition, the non-modified I image selector unit 721 performs processing to select I images serving 10 as unmodified data based on unalterable canned cycle information for each content, or the cycle information corresponding to a content, which is adjusted depending on a content.

An unmodified image decoder unit 722 performs decoding processing of the selected I images by the modified I image selector unit 721, and a content production unit 723 produces the I images that are the result of decoding. According to the processing process, special reproduction, such as reproduction at high speed, without undergoing data transformation, can be performed.

8. Configuration of the information processing device

In the following, a description will be made regarding an example of hardware configuration of the information processing device to run an application as the host with reference to Fig. 45. An information processing device 800 has a CPU 809 that 25 performs data processing. according to various types of programs, including OS, content playback and recording application programs, mutual authentication processing, various processing that are accompanied by content playback, for example, the data transformation processing described above, for example, etc.,

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111

ROM 808 serving as a storage area for programs, parameters etc., memory 910, and input / output I / F 802 for input / output of digital signals, an input / output I / F 804 having an A / D, D / converter The 805 for analog signal input / output, an MPEG 803 CODEC to perform MPEG data encryption and decryption processing, TS-PS 806 processing media to perform TS (transport stream) - PS (program stream) processing , 807 encryption processing means to perform various types of encryption processing, such as mutual authentication, encrypted content decryption processing, etc., an 812 recording medium such as a hard disk, and an 811 drive triggering the 812 recording medium and making input / output data input / output signals, with each block being connected to an 801 bus.

The information processing device (host) 800 is connected to the drive by a connection bus, such as an ATAPIBUS, for example. Adjustment tables, contents etc. they are input / output via I / F 802 digital signal input / output. Encryption processing and decryption processing are performed by means of 807 encryption processing, applying AES algorithms, or similar, for example.

Note that programs to perform encryption or recording processing are kept inside ROM 808, for example, and memory 810 is used while executing the programs, as needed, for a storage and working area of parameters and data.

ROM 808 or recording medium 812 stores, for example, the public password of an Administration Center, a secret password for a host, a public password certificate for the host and, in addition, a drive CRL serving as a relocation list. etc.

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112

At the time of the reproduction or external production of a content, a data transformation processing program obtained from the information recording medium is applied to perform processing without succession to several processing sequences described previously in the processing examples, such as decrypted or encrypted content. , adjustment table restoration, writing transformation data based on data stored in adjustment tables, etc.

The present invention has been described in detail so far with reference to specific embodiments. However, it is self-evident that someone skilled in the art can make modifications and substitutions to the embodiments without departing from the essence of the present invention. That is, the present invention was revealed as an example, and should not be interpreted restrictively. The judgment of the essence of the present invention must be made with reference to the claims section.

Note that the series of processing described in the Report can be performed by hardware, software or a combination of both. In the case of performing processing with software, a program recording the processing sequence can be installed in memory inside a computer that has built-in dedicated and executed hardware, or the program can be installed on the general purpose computer capable of performing various types of processing.

For example, the program can be recorded on a hard disk or ROM (read-only memory) serving as recording media beforehand. Or, the program can be temporarily or permanently stored (recorded) on removable media, such as a floppy disk, CDROM (compact read-only memory disk), Mo disk (magneto-optical), DVD (digital versatile disk), magnetic disk , semiconductor memory, etc. This removable recording medium can be provided as so-called bundled software.

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113

Note that in addition to installing the program from the removable recording media as described above on the computer, the program can be transferred wirelessly to the computer from the download site, or transferred to the computer over networks, such as LAN (local area network) ) or 5 Internet, using cable, with a computer receiving the program transferred in a way, and installing it on an embedded recording medium, such as a hard disk or similar.

In addition, the various types of processing described in the Report are not restricted to execution in the described time sequence, and 10 can be performed in parallel or independently, depending on the processing capabilities of the device performing the processing. Note that the system, as used in this report, means a logical set arrangement of multiple devices, and is not restricted to an arrangement in which all component devices are in the same housing.

Claims (5)

1. Information processing device to perform high speed video reproduction, comprising: a modified data generation unit (37) configured to generate modified data obtained by modifying content configuration data; an adjustment table generating unit (34) configured to generate an adjustment table, in which transformation data serving as an object to be replaced by said modified data are recorded; characterized by the fact of additionally understanding: a reproduction management information generation unit (521) configured to generate an EP map that stores multiple entries, each entry including a package number and a presentation time stamp (PTS) corresponding to the package number; and a data recording unit (39) configured to record content including said modified data and said adjustment table in an information recording medium (10; 100; 310), in which the said modified data generation unit ( 37) is configured to perform data modification processing with the encoded MPEG data configuration units included in a TS package constituting content as data modification processing units with the exception of unmodified I images, where I images unmodified corresponds to entries for each predetermined cycle of the multiple entries that are recorded on the EP map, and where the entries for each predetermined cycle of the multiple entries, which are recorded on the EP map, have at least one Petition 870180140775, of 10/11/2018, p. 128/274 entry between them. 2. Device according to claim 1, characterized by the fact that that modified data generation unit is configured to perform data modification processing, in which a slice within a DCT block included in encoded MPEG data is adjusted as data modification processing units to generate breached data serving as breached content; and wherein that data recording unit is configured to perform processing to record content including that data breached in an information recording medium. 3. Device according to claim 1, characterized by the fact that that modified data generation unit is configured to perform data modification processing, in which an arithmetic encoding block fitted to an encoded MPEG data image is adjusted how data modification processing units to generate breached data serving as breached content; and wherein that data recording unit is configured to perform processing to record content including that data breached in an information recording medium. 4. Device according to claim 1, characterized by the fact that that modified data generation unit is configured to perform data modification processing, in which an I image that is included in encoded MPEG data is selected as an image to be subjected to data modification processing to generate violated data serving as violated content; and wherein that data recording unit is configured to perform processing to record content including that data breached in an information recording medium. 5. Device according to claim 1, characterized Petition 870180140775, of 10/11/2018, p. 129/274 due to the fact that that adjustment table generating unit is configured to generate an adjustment table, in which transformation data established with an identifier, which allows identification information of a content reproduction device or content reproduction application to be analyzed, are recorded. 6. Device, according to claim 5, characterized by the fact that the generating unit of the adjustment table is configured to perform data modification processing, in which the transformation data established with an identifier, which allows the identification information of a content playback device or content playback application to be analyzed, are fitted with a macro block within a DCT block included in MPEG data encoded as the data modification processing units to generate that transformation data established with identifier. 7. Device, according to claim 1, characterized by the fact that that modified data generation unit is configured to perform data modification processing, in which all the images I included in encoded MPEG data are selected as non- modified, and only a B image or P image is selected as an image to be subjected to that modification processing to generate violated data. 8. Non-transitory information recording medium (10; 100; 310), in which a content is recorded, which stores: a content in which partial content configuration data is set as modified data; and an adjustment table that records adjustment position information relating to transformation data serving as an object to be replaced by the modified data, and the content of the transformation data; Petition 870180140775, of 10/11/2018, p. 130/274 characterized by the fact that it additionally stores: an EP map that stores multiple entries, each entry including a package number and a presentation time stamp (PTS) corresponding to the package number, where the modified data is generated data by executing data modification processing for one or more image data other than specified unmodified I images of multiple I images included in encoded MPEG data, where the unmodified I images correspond to entries for each predetermined cycle of the multiple entries that are recorded on the EP map, and wherein the entries for each predetermined cycle of the multiple entries, which are recorded on the EP map, have at least one entry between them. 9. Non-transitory information recording medium, according to claim 8, characterized by the fact that modified data includes violated data preventing normal reproduction; and wherein said breached data is modified data generated with data modification processing. 10. Non-transitory information recording medium, according to claim 8, characterized by the fact that those modified data include violated data preventing normal reproduction; and wherein said breached data is modified data generated with that data modification processing, in which a slice within a DCT block included in encoded MPEG data is set up as processing units. 11. Non-transitory information recording medium, according to claim 8, characterized by the fact that the modified data includes violated data preventing normal reproduction; and Petition 870180140775, of 10/11/2018, p. 131/274 wherein said breached data is modified data generated with that data modification processing, in which an arithmetic encoding block fitted to an image of encoded MPEG data is adjusted as processing units. 12. Non-transitory information recording medium, according to claim 8, characterized by the fact that the modified data includes violated data preventing normal reproduction; and wherein said breached data is modified data generated with data modification processing, in which an image I included in encoded MPEG data is selected as an image to be subjected to data modification processing. 13. Non-transitory information recording medium, according to claim 8, characterized by the fact that such an adjustment table is an adjustment table in which transformation data established with an identifier, which allows identification information of a reproduction device content or content playback application to be analyzed, are recorded. 14. Non-transitory information recording medium, according to claim 13, characterized by the fact that the mentioned transformation data established with an identifier are data generated with said data modification processing, in which a macro block within a DCT block included in encoded MPEG data is set as processing units. 15. Non-transitory information recording medium, according to claim 13, characterized by the fact that the mentioned transformation data established with an identifier are data generated with said data modification processing, in which an image B included in data Encoded MPEG is set as processing units. 16. Data structure, including as configuration data: Petition 870180140775, of 10/11/2018, p. 132/274 a content in which partial configuration data of the content are set as modified data; and an adjustment table that records adjustment position information relating to transformation data serving as an object to be replaced by the modified data, and the content of the transformation data; characterized by including as configuration data: an EP map that stores multiple entries, each entry including a package number and a presentation time stamp (PTS) corresponding to the package number, where the modified data is generated data by executing data modification processing for one or more image data other than specified unmodified I images of multiple I images included in encoded MPEG data, where the unmodified I images correspond to entries for each predetermined cycle of the multiple entries that are recorded on the EP map, and wherein the entries for each predetermined cycle of the multiple entries, which are recorded on the EP map, have at least one entry between them. 17. Data structure according to claim 16, characterized by the fact that the aforementioned modified data is modified data generated with the data modification processing. 18. Data structure according to claim 16, characterized by the fact that the aforementioned modified data is modified data generated with that data modification processing, in which a slice within a DCT block included in encoded MPEG data is adjusted as processing units. 19. Data structure according to claim 16, Petition 870180140775, of 10/11/2018, p. 133/274 being characterized by the fact that the aforementioned modified data are modified data generated with that data modification processing, in which an arithmetic coding block fitted to an image of encoded MPEG data is adjusted as processing units. 20. Data structure, according to claim 16, characterized by the fact that the mentioned modified data are modified data generated with that data modification processing, in which an image I included in encoded MPEG data is selected as a image to be submitted to data modification processing. 21. Data structure according to claim 16, being characterized by the fact that that adjustment table is an adjustment table in which transformation data established with an identifier, which allows identification information of a reproduction device of 15 content or content playback application to be analyzed, are recorded. 22. Data structure, according to claim 21, characterized by the fact that said transformation data established with an identifier is data generated with said processing 20 data modification, in which a macro block within a DCT block included in encoded MPEG data is set as processing units. 23. Data structure, according to claim 21, being characterized by the fact that said transformation data 25 established with identifier are data generated with said data modification processing, in which an image B included in encoded MPEG data is set as processing units. 24. Device for manufacturing information recording media, comprising: Petition 870180140775, of 10/11/2018, p. 134/274 a modified data generation unit (37) configured to generate modified data obtained by modifying content configuration data; an adjustment table generating unit (34) configured to generate an adjustment table, in which transformation data serving as an object to be replaced by said modified data are recorded; characterized by the fact of additionally understanding: a reproduction management information generation unit (521) configured to generate an EP map that stores multiple entries, each entry including a package number and a presentation time stamp (PTS) corresponding to the package number; and a data recording unit (39) configured to record content including said modified data and said adjustment table in an information recording medium (10; 100; 310), in which that modified data generation unit (37 ) is configured to perform data modification processing with various image data with the exception of unmodified I images, where unmodified I images correspond to inputs for each predetermined cycle of the multiple inputs that are recorded on the EP map, and in which the entries for each predetermined cycle of the multiple entries, which are recorded on the EP map, have at least one entry between them. 25. Information processing device to perform content reproduction processing that is subjected to MPEG encoding processing, of which part of the content configuration data is set as modified data, a device characterized by the fact that it comprises: Petition 870180140775, of 10/11/2018, p. 135/274 an unmodified I image selector unit (721) being configured to select I images serving as unmodified data from said content in which the unmodified I images correspond to inputs for each predetermined cycle of multiple inputs that are registered on an EP map, in which the entries for each predetermined cycle of the multiple entries, which are registered on the EP map, have at least one entry between them; and a decoding processing unit (155), and product, being configured to perform decoding processing, and product processing, of the unmodified I images selected by said unmodified I image selector unit (721). 26. Information processing device according to claim 25, characterized in that such an unmodified I image selector unit is configured to perform processing to obtain the position of an I image serving as unmodified data applying at least one of a table and the EP map which is adjusted correspondingly to a content to be reproduced. 27. Information processing device according to claim 25, characterized in that such an unmodified I image selector unit is configured to perform processing for selecting an I image serving as unmodified data based on information from unalterable canned cycle for each content, which is information equivalent to the range of GOPs or images I consisting of unmodified data. 28. Information processing device according to claim 25, characterized in that such an unmodified I image selector unit is configured to perform processing for selecting an I image serving as unmodified data based on information from cycle corresponding to a content, which is adjusted accordingly Petition 870180140775, of 10/11/2018, p. 136/274 according to a content, and it is cycle information equivalent to the range of GOPs or images I consisting of unmodified data. 29. Information processing method, comprising the steps of: generate modified data to generate modified data obtained by modifying content configuration data; generate adjustment table to generate an adjustment table, in which transformation data serving as an object to be replaced by said modified data are recorded; characterized by the fact that it additionally understands the steps of: generate reproduction management information to generate an EP map that stores multiple entries, each entry including a package number and a presentation time stamp corresponding to the package number; and recording data to record content including said modified data, and said setting table in an information recording medium, wherein that step of generating modified data performs data modification processing with the included encoded MPEG data configuration units in a TS package constituting content as data modification processing units with the exception of unmodified I images, where the unmodified I images correspond to entries for each predetermined cycle of the multiple entries that are recorded on the EP map, and wherein the entries for each predetermined cycle of the multiple entries, which are recorded on the EP map, have at least one entry between them. Petition 870180140775, of 10/11/2018, p. 137/274 30. Information processing method according to claim 29, characterized in that said step of generating modified data is a step to perform data modification processing, in which a slice within a DCT block included in data Encoded MPEG is set up as data modification processing units to generate breached data serving as breached content; and wherein said data recording step is a step for performing processing to record content including said data breached in an information recording medium. 31. Information processing method, according to claim 29, characterized by the fact that this modified data generation step is a step to perform data modification processing, in which an arithmetic coding block adjusted in an image of encoded MPEG data is set up as data modification processing units to generate breached data serving as breached content; and wherein said data recording step is a step for performing processing to record content including said data breached in an information recording medium. 32. Information processing method according to claim 29, characterized in that said step of generating modified data is a step to perform data modification processing, in which an image I included in encoded MPEG data is selected as an image to be subjected to data modification processing to generate violated data serving as violated content; and wherein said data recording step is a step to perform processing to record content including those mentioned Petition 870180140775, of 10/11/2018, p. 138/274 data breached in an information recording medium. 33. Information processing method, according to claim 29, characterized by the fact that said step of generating an adjustment table is a step to generate an adjustment table (15; 105; 314) in which transformation data established with identifier, which enable identification information of a content playback device or content playback application to be analyzed, are recorded. 34. Information processing method, according to claim 33, characterized by the fact that this setting table generation step is a step to generate the transformation data established with an identifier, which allows the identification information of a device content playback or content playback application to be analyzed, adjusted by performing data modification processing, in which a macro block within a DCT block included in encoded MPEG data is set as data modification processing units Dice. 35. Information processing method, according to claim 29, characterized by the fact that this modified data generation step performs data modification processing, in which all the images I included in encoded MPEG data are selected as non-data -modified, and only a B image or P image is selected as an image to be subjected to modification processing to generate modified data. 36. Method for manufacturing information recording medium, which comprises the steps of: generate modified data to generate modified data obtained by modifying content configuration data; generate adjustment table to generate an adjustment table, in which Petition 870180140775, of 10/11/2018, p. 139/274 transformation data serving as an object to be replaced by said modified data are recorded; characterized by the fact that it additionally understands the steps of: generate reproduction management information to generate an EP map that stores multiple entries, each entry including a package number and a presentation time stamp corresponding to the package number; and recording data to record content including said modified data, and said adjustment table in an information recording medium, wherein that step of generating modified data is a step to perform data modification processing with various image data with the exception of unmodified I images, where unmodified I images correspond to entries for each predetermined cycle of the multiple entries that are recorded on the EP map, and where the entries for each predetermined cycle of the multiple entries, which are recorded on the EP map, they have at least one entry between them. 37. Information processing method for performing content reproduction processing that is subjected to MPEG encoding processing, of which part of the content configuration data is set as modified data, a method that is characterized by the fact that it comprises the steps of : select unmodified I image to select I images serving as unmodified data of that content in which unmodified I images correspond to entries for each predetermined cycle of multiple entries that are recorded on an EP map, in Petition 870180140775, of 10/11/2018, p. 140/274 that the entries for each predetermined cycle of the multiple entries, which are recorded on the EP map, have at least one entry between them; and processing product decoding to perform decoding and product processing of the unmodified I images selected by the aforementioned unmodified I image selection step. 38. Information processing method according to claim 37, characterized by the fact that such an unmodified I image selection step is a step to perform processing to obtain the position of an I image serving as unmodified data applying at least one of a table and the EP map which is adjusted correspondingly to a content to be reproduced. 39. Information processing method according to claim 37, characterized by the fact that such an unmodified I image selection step performs processing to select an I image serving as unmodified data based on cycle information fixed unchanged for each content, which is cycle information equivalent to the range of GOPs or images I consisting of unmodified data. 40. Information processing method according to claim 37, characterized by the fact that such an unmodified I image selection step performs processing to select an I image serving as unmodified data based on cycle information corresponding to a content, which is adjusted according to a content, and is cycle information equivalent to the range of GOPs or images I made up of unmodified data. 41. Computer-readable media, characterized by the fact that it contains instructions that, when executed on an information processing device, cause the Petition 870180140775, of 10/11/2018, p. 141/274 information processing perform a processing method to record content on an information recording medium, comprising the steps of: generate modified data to generate modified data obtained by modifying content configuration data; generate adjustment table to generate an adjustment table, in which transformation data serving as an object to be replaced by said modified data are recorded; generate reproduction management information to generate an EP map that stores multiple entries, each entry including a package number and a presentation time stamp corresponding to the package number; and recording data to record content including said modified data, and said setting table in an information recording medium, wherein that step of generating modified data is a step to perform data modification processing with the configuration units of encoded MPEG data included in a TS package constituting content as data modification processing units with the exception of unmodified I images, where unmodified I images correspond to inputs for each predetermined cycle of the multiple inputs that are recorded in the EP map, and in which the entries for each predetermined cycle of the multiple entries, which are registered in the EP map, have at least one entry between them. 42. Computer-readable media, characterized by the fact that it contains instructions that, when executed on an information processing device, cause the Petition 870180140775, of 10/11/2018, p. 142/274 information processing perform a method of processing content reproduction subjected to MPEG encoding processing, of which part of the content configuration data is set as modified data, comprising the steps of: 5 select unmodified I image to select I images serving as unmodified data of said content in which the unmodified I images correspond to entries for each predetermined cycle of multiple entries that are recorded on an EP map, where the entries for each predetermined cycle of the multiple entries, which 10 are recorded on the EP map, has at least one entry between them; and processing product decoding to perform decoding and product processing of the unmodified I images selected by the aforementioned unmodified I image selection step.