A digital content protection apparatus and method for digital rights management (DRM) are provided in which a content file including a plurality of content parts is imported such that a header is included which stores location information required for decoding each of the content parts. Therefore, the number of content parts constituting the content file can be recognized, and a license that is required for the use of each of the content parts can be acquired by analyzing header information without necessitating the parsing of the transport packets of the content file. Accordingly, preparation time for using content can be reduced.

Claims

22 · 2 independent · depth 3

22 granted claims

›1.independentA method of importing a first content file, comprising a plurality of content parts, to a second content file, the method comprising:na processor whic…+13

›2.↳ 1The method of claim 1, wherein the content parts each have different usage constraint information.d2

›3.↳ 1The method of claim 1, further comprising creating identification information for identifying the content parts.d2+1

›5.↳ 1The method of claim 1, wherein the licenses each comprises at least one of a content ID of the corresponding content part and a content key of the cor…d2

›6.↳ 1The method of claim 1, further comprising creating information (PROGRM_ID) for identifying the contents of the first content file from others.d2

›7.↳ 1The method of claim 1, further comprising creating protection information comprising information required to decrypt the content parts.d2+1

›9.↳ 1The method according to claim 1, further comprising creating a header which indicates location information to use each of the plurality of content par…d2

›10.↳ 1The method according to claim 1, wherein at least one of the first content file and the second content file comprises a broadcast program.d2

›11.↳ 1The method according to claim 1, wherein the second content file is created after the first content file is imported into a user's domain.d2

›12.↳ 1The method according to claim 1, wherein importing comprises issuing licenses for the plurality of content parts.d2

›13.↳ 1The method according to claim 1, wherein protection information packets are periodically inserted among each of the plurality of content parts of the …d2

›14.↳ 1The method according to claim 1, wherein the usage constraint information comprises one of copy control information and a broadcast flag.d2

›15.independentAn apparatus for importing a first content file, comprising a plurality of content parts, to a second content file, the apparatus comprising:nan encry…+7

›16.↳ 15The apparatus of claim 15, wherein the content parts each have different usage constraint information.d2

›17.↳ 15The apparatus of claim 15, further comprising an element that creates identification information for identifying the content parts.d2+1

›19.↳ 15The apparatus of claim 15, wherein the licenses each comprises at least one of a content ID of the corresponding content part and a content key of the…d2

›20.↳ 15The apparatus of claim 15, further comprising an element that creates information (PROGRM_ID) for identifying the contents of the first content file f…d2

›21.↳ 15The apparatus of claim 15, further comprising an element that creates protection information comprising information required to decrypt the content pa…d2+1

Classifications

21 codes

IPC · International Patent Classification

Section G — Physics

G06F11/30
G06F21/10

Section H — Electricity

H04N21/4627
H04N21/435
H04N21/845
H04N21/835
H04N21/254

USPC · US Patent Classification

726/27726/31726/33713/160726/7713/165726/4726/2726/1380/202713/171713/161380/201726/30

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Pendency

8.1 y

2,947 days filing → grant

Office actions

non-final + final

Responses

3 RCE

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Examiner

Luu Pham

art unit 2439 · TC 2400

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Citations: 113 back · 0 forward

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Priority chain

2 priority documents

Priority

15 Feb 2006

earliest claimed

›Priority documents — 2

Type	Document	Date
provisional	US 60773341	15 Feb 2006
related publication	US 20070192875 A1	16 Aug 2007

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