Method for transmitting content with copy control information, content identification information and content status information
View Patent ↗A content transmitting apparatus and the like which execute copy control of content more securely than conventional, and can count copy number correctly according to the situation, even in the case where content transfer is interrupted are provided. The content reproducing apparatus 10 for transmitting content that is digital copyrighted work including a plurality of content blocks comprises: the content reproducing unit 11 which reads out content and the like from the DVD 30 ; the control unit 12 which repeats, for each of the plurality of content blocks, transmitting in parallel with the content blocks, the copy control information indicating copy permission of the content, the content identification information identifying content, and the content status information indicating status of the content blocks in the overall content; the data building unit 15 ; the transmission unit 16 ; and the like.
1. A content transmitting method for transmitting content of a first recording medium which is digital copyrighted work including a plurality of content blocks, the method comprising:
transmitting the content to an external apparatus, for each of the content blocks, and further transmitting copy control information indicating copy permission of the content that corresponds to the content block that is being transmitted, content identification information identifying the content that corresponds to the content block that is being transmitted, and content status information that is position information for the content block that is being transmitted, the content status information indicating a position of the block in the content,
wherein the transmitting includes:
repeating transmitting the copy control information from a start of transmitting the content to an end of transmitting the content,
repeating transmitting the content identification information from the start of transmitting the content to the end of transmitting the content,
transmitting (i) at least twice, content status information indicating that the content block that is being transmitted is located at a head part of the content, (ii) content status information indicating that the content block that is being transmitted is located at a central part of the content, and (iii) at least twice, content status information indicating that the content block that is being transmitted is located at an end part of the content, and
including, when the content identification information is divided into first information and second information different from each other, flag information into the first information and transmit the second information after the first information, the flag information indicating that information related to the content identification information follows.
2. A non-transitory recording medium containing a program for transmitting content of a first recording medium which is digital copyrighted work including a plurality of content blocks, the program, when executed by a computer, being configured to cause the computer to execute the content transmitting method according to claim 1 .