US 8,020,212 B2Granted

Information processing apparatus and method, content management system, information recording medium, and computer program

AssigneeSony Corporation

InventorYoshikazu Takashima

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Abstract

An information processing apparatus including a data processor and a communication unit is provided. For a content management unit provided with corresponding usage control information, the data processor executes a program corresponding to the content management unit, and obtains identification information set for the content management unit from an information recording medium and sends, via the communication unit, the obtained identification information to an access destination which is determined based on information indicated in the program, so that the data processor performs processing for obtaining download data set for the content management unit via the communication unit or for obtaining playback permission information concerning content corresponding to the content management unit via the communication unit.

Claims13

Dependent claims

An information processing apparatus comprising:

a data processor;
a communication unit;
and
a memory device storing instructions which when executed by the data processor, cause the data processor to operate with the communication unit to, for a first one of a plurality of content management units recorded on an information recording medium:
(a) execute a program which corresponds to said first content management unit, wherein:
(i) content is divided into the plurality of content management units, the plurality of content management units being distinct from the information recording medium and each of the plurality of content management units having corresponding usage control information;
and
(ii) the first content management unit includes a plurality of storage areas, the plurality of storage areas of the first content management unit including:
(A) a content file having first content stored therein;
and
(B) a usage control information file having first usage control information including basic identification information stored therein;
(b) obtain the basic identification information stored in the first content management unit recorded on the information recording medium;
(c) send the obtained basic identification information to an access destination which is determined based on information indicated in the program;
(d) send additional information to the access destination, the additional information being used for determining whether a download permitting condition or a playback permitting condition is satisfied;
(e) if it is determined that the playback permitting condition is satisfied:
(i) receive information associated with said playback permitting condition;
and
(ii) thereafter, record the received information associated with said playback permitting condition in at least one of the plurality of storage areas of said first content management unit recorded on the information recording medium;
and
(f) if it is determined that the download permitting condition is satisfied:
(i) generate an encrypted file which includes a download data set obtained from the access destination;
and
(ii) thereafter, record said generated encrypted file in at least one of the plurality of storage areas of said first content management unit recorded on the information recording medium.

20 more elements

A content management system comprising:

a client configured to execute a program corresponding to a first one of a plurality of content management units recorded on an information recording medium, wherein:
(a) the information recording medium stores content divided into the plurality of content management units, the plurality of content management units being distinct from the information recording medium and each of the plurality of content management units having corresponding usage control information;
and
(b) the first content management unit includes a plurality of storage areas, the plurality of storage areas of the first content management unit including:
(A) a content file having first content stored therein;
and
(B) a usage control information file having first usage control information including basic identification information stored therein;
and
a server configured to:
(a) receive, from the client, the basic identification information stored in the first content management unit recorded on the information recording medium;
(b) determine, based on the basic identification information received from the client, whether a download data set for the first content management unit is to be provided or whether content playback permission information concerning content corresponding to the first content management unit is to be provided, the program being a data sending execution program which sends additional information to the server;
and
(c) determine, based on the additional information received from the client, whether a download permitting condition or a playback permitting condition is satisfied;
and
(d) if it is determined that the playback permitting condition is satisfied:
(i) provide information associated with said playback permitting condition to the client;
and
(ii) thereafter, record the information associated with said playback permitting condition in at least one of the plurality of storage areas of said first content management unit recorded on the information recording medium;
and
(e) if it is determined that the download permitting condition is satisfied:
(i) generate an encrypted file which includes a download data set obtained from the access destination;
and
(ii) thereafter, record said generated encrypted file in at least one of the plurality of storage areas of said first content management unit recorded on the information recording medium.

20 more elements

A non-transitory information recording medium comprising:

content divided into a plurality of content management units, the plurality of content management units being distinct from the non-transitory information recording medium and each of the plurality of content management units having corresponding usage control information, said plurality of content management units including a first content management unit which includes a plurality of storage areas, the plurality of storage areas of the first content management unit including:
(A) a content file having first content stored therein;
and
(B) a usage control information file having first usage control information including basic identification information stored therein;
and
a program corresponding to each of the plurality of content management units as storage information, wherein:
(a) the program includes at least one of information concerning a first location from which download data set for said first content management unit associated with a program is obtained and information concerning a second location from which playback permission information concerning content corresponding to the first content management unit is obtained;
(b) the program is a data sending execution program including additional information used for determining whether a download permitting condition or a playback permitting condition is satisfied;
(c) if it is determined that the playback permitting condition is satisfied:
(i) information associated with said playback permitting condition is provided to the client;
and
(ii) the information associated with said playback permitting condition is recorded in at least one of the plurality of storage areas of said first content management unit recorded on the non-transitory computer readable medium;
and
(d) if it is determined that the downloading permission permitting condition is satisfied:
(i) an encrypted file is generated which includes the download data set obtained from the second location;
and
(ii) said generated encrypted file is recorded in at least one of the plurality of storage areas of said first content management unit recorded on the information recording medium.

14 more elements

An information processing method comprising:

executing a program corresponding to a first one of a plurality of content management units recorded on an information recording medium, wherein:
(i) the information recording medium stores content divided into the plurality of content management units, the plurality of content management units being distinct from the information recoding medium and each of the plurality of content management units having corresponding usage control information;
and
(ii) the first content management unit includes a plurality of storage areas, the plurality of storage areas of the first content management unit including:
(A) a content file having first content stored therein;
and
(B) a usage control information file having first usage control information including basic identification information stored therein;
obtaining the basic identification information stored in the first content management unit recorded on the information recording medium;
sending the obtained basic identification information to an access destination that is determined based on information indicated in the program;
sending additional information to the access destination for determining whether a download permitting condition or a playback permitting condition is satisfied based on the additional information;
if it is determined that the playback permitting condition is satisfied:
(i) receiving information associated with said playback permitting condition;
and
(ii) thereafter, recording the received information associated with said playback permitting condition in at least one of the plurality of storage areas of said first content management unit recorded on the information recording medium;
and
if it is determined that the download permitting condition is satisfied:
(i) generating an encrypted file which includes a download data set obtained from the access destination;
and
(ii) thereafter, recording said generated encrypted file in at least one of the plurality of storage areas of said first content management unit recorded on the information recording medium.

16 more elements

A program stored in a non-transitory computer readable medium for allowing a computer to execute information processing comprising:

executing a program corresponding to a first one of a plurality of content management units recorded on an information recording medium, wherein:
(i) the information recording medium stores content divided into the plurality of content management units, the plurality of content management units being distinct from the information recording medium and each of the plurality of content management units having corresponding usage control information;
and
(ii) the first content management unit includes a plurality of storage areas, the plurality of storage areas of the first content management unit including:
(A) a content file having first content stored therein;
and
(B) a usage control information file having first usage control information including basic identification information stored therein;
obtaining the basic identification information stored in the first content management unit recorded on the information recording medium;
sending the obtained basic identification information to an access destination that is determined based on information indicated in the program;
sending additional information to the access destination for determining whether a download permitting condition or a playback permitting condition is satisfied based on the additional information;
if it is determined that the playback permitting condition is satisfied:
(a) receiving information associated with said playback permitting condition;
and
(b) thereafter, recording the received information associated with said playback permitting condition in at least one of the plurality of storage areas of said first content management unit recorded on the information recording medium;
if it is determined that the download permitting condition is satisfied:
(a) generating an encrypted file which includes a download data set obtained from the access destination;
and
(b) thereafter, recording said generated encrypted file in at least one of the plurality of storage areas of said first content management unit recorded on the information recording medium.

15 more elements

An information processing apparatus comprising:

a data processor;
and
a memory device storing instructions which when executed by the data processor, cause the data processor to, for a first one of a plurality of content management units recorded on an information recording medium:
(i) execute a program corresponding to the first content management unit provided with corresponding control information, wherein:
(a) the information recording medium has content stored thereon, the content being divided into the plurality of content management units and including at least one of a studio ID of a package ID, the plurality of content management units being distinct from the information recording medium and each of the plurality of content management units having corresponding usage control information;
and
(b) the first content management unit includes a plurality of storage areas, the plurality of storage areas of the first content management unit including:
(A) a content file having first content stored therein;
and
(B) a usage control information file having first usage control information including basic identification information stored therein;
and
(ii) in response to the program being executed:
(a) at least one of the studio ID and package ID is obtained;
(b) said studio ID or said package ID is sent to an access destination determined by the execution of the program corresponding to the first content management unit;
(c) processing for obtaining a download data set for the content management unit or for obtaining playback permission information concerning content corresponding to the content management unit is performed;
(d) additional information is sent to the access destination for determining whether a download permitting condition or a playback permitting condition is satisfied;
(e) if it is determined that the playback permitting condition is satisfied:
(i) processing for receiving information associated with said playback permitting condition is performed;
and
(ii) thereafter, the received information associated with said playback permitting condition is recorded in at least one of the plurality of storage areas of said first content management unit recorded on the information recording medium;
and
(f) if it is determined that the download permitting condition is satisfied:
(i) generate an encrypted file which includes a download data set obtained from the access destination;
and
(ii) thereafter, said generated encrypted file is recorded in at least one of the plurality of storage areas of said first content management unit recorded on the information recording medium.

22 more elements

Dependencies are inferred from the claim text.

Facts

Application: 11/350,708Filed 9 Feb 2006
Priority: JP P2005-03510810 Feb 2005
Published: US 2006/0195911 A131 Aug 2006
Granted: 13 Sep 2011
Term ends: Not estimatedThe source records don’t support an estimate.

Classification17 codes

H04L 63/0428
For providing a confidential data exchange among entities communicating through data packet networks: wherein the data content is protected, e.g.…
G11B 20/00086
Signal processing not specific to the method of recording or reproducing; Circuits therefor: circuits for prevention of unauthorised reproduction…
G11B 20/00115
Involving measures which result in a restriction to authorised record carriers: wherein the record carrier stores a unique medium identifier
G11B 20/00181
Involving measures which result in a restriction to authorised contents recorded on or reproduced from a record carrier, e.g. music or software:…