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US 2006/0069925 A1Published application
Content processing device, content accumulation medium, content processing method and content processing program
OwnerShinichi Nakai, Naohiko Noguchi +3inventors
InventorsShinichi Nakai, Naohiko Noguchi, Shinichi Matsui, Takaaki Nanba, Ryuji Inoue
Life of this patent
Estimating the term…
Abstract
With respect to encrypted content 104 stored in content storage medium 102, by storing information with a small data amount related to the encrypted content 104 in content storage medium 102 in association with the encrypted content 104, it is possible to distinguish between encrypted content 104 based on the related information without decoding the encrypted content 104 with a large data amount. It is thereby possible to more readily distinguish between a plurality of pieces of content stored in the content storage medium.
Claims29
1-46. (canceled)
A content processing apparatus comprising:
- a first storage section that stores therein an identifier unique to the content processing apparatus and identification data;
- an encrypting section that encrypts content using the identification data using the identifier;
- and
- an output section that stores the encrypted content and the encrypted identification data in content storage medium in association with each other.
1 more element
A content processing apparatus comprising:
- a first storage section that stores therein an identifier unique to the content processing apparatus;
- an encrypting section that encrypts content using the identification data using the identifier;
- and
- an output section that stores the encrypted content in a directory of a content storage medium, a name of the directory based on the identifier.
1 more element
A content processing apparatus comprising:
- a first storage section that stores therein an identifier unique to the content processing apparatus;
- an authentication section that determines whether access is allowed to a first area of the content storage medium, the content storage medium having the first area and a second area;
- an encrypting section that encrypts content using the identifier;
- and
- an output section that stores the identifier in the first area and stores the encrypted content in the second area, in the content storage medium.
2 more elements
A content processing apparatus comprising:
- a first storage section that stores therein an identifier unique to the content processing apparatus;
- a second storage section that stores therein information which is different from the identifier and is used to determine whether encrypted content to be stored in a content storage medium can be decoded in the content processing apparatus;
- an encrypting section that encrypts content using the identifier;
- and
- an output section that stores the encrypted content and the information in the content storage medium.
2 more elements
A content processing apparatus comprising:
- a first storage section that stores therein an identifier unique to the content processing apparatus;
- a second storage section that stores therein a directory name of a content storage medium used to store encrypted content;
- an encrypting section that encrypts content using the identifier;
- and
- an output section that stores the encrypted content in a directory in the content storage medium with the same directory name as the directory name stored in the second storage section.
2 more elements
60-66. (canceled)
A content processing apparatus comprising:
- an input section that reads out encrypted content from a content storage medium, and encrypted first identification data from the content storage medium;
- a first storage section that stores therein second identification data and an identifier unique to the content processing apparatus;
- a decoding section that decodes the encrypted first identification data using the identifier;
- and
- a comparing section that compares the decoded first identification data with the second identification data stored in the first storage section,
- wherein when the decoded first identification data agrees with the second identification data, the decoding section decodes the encrypted content using the identifier.
3 more elements
A content processing apparatus comprising:
- an input section that reads out encrypted content from a content storage medium and a name of a directory from the content storage medium storing the content;
- a first storage section that stores therein an identifier unique to the content processing apparatus;
- a comparing section that compares the name of the directory read from the content storage medium with the identifier;
- and
- a decoding section that decodes the encrypted content using the identifier, when the name of the directory agrees with the identifier.
2 more elements
A content processing apparatus comprising:
- an authentication section that determines whether access is allowed to a first area of a content storage medium the content storage medium having the first area and a second area;
- an input section that reads out a first identifier from the first area in the content storage medium, and encrypted content, associated with the first identifier, from the second area in the content storage medium;
- a first storage section that stores therein a second identifier unique to the content processing apparatus;
- a comparing section that compares the first identifier with the second identifier;
- and
- a decoding section that decodes the encrypted content using the second identifier when the first identifier agrees with the second identifier.
3 more elements
A content processing apparatus comprising:
- an input section that reads out encrypted content from a content storage medium, and first information to determine whether the encrypted content in the content storage medium can be decoded in the content processing apparatus;
- a first storage section that stores therein an identifier unique to the content processing apparatus;
- a second storage section that stores therein second information that is different from the identifier and used to determine whether the encrypted content can be decoded in the content processing apparatus;
- a comparing section that compares the first information with the second information;
- and
- a decoding section that decodes the encrypted content using the identifier when the first information agrees with the second information.
3 more elements
A content processing apparatus comprising:
- an input section that reads out encrypted content and a name of a first directory from a content storage medium in which the encrypted content is stored in the first directory;
- a first storage section that stores therein an identifier unique to the content processing apparatus;
- a second storage section that stores therein a second directory name of the content storage medium in which the encrypted content is stored;
- a comparing section that compares a name of the first directory with the second directory name;
- and
- a decoding section that decodes the encrypted content using the identifier when the name of the first directory agrees with the second directory name.
3 more elements
80-86. (canceled)
Dependencies are inferred from the claim text.