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Information processing device, information recording medium, information processing method, and program

An information processing device and a technology for controlling information, which are used in recording signal processing, color TV signal processing, information storage, etc.

Active Publication Date: 2019-11-15
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0024] However, this treatment has not yet

Method used

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  • Information processing device, information recording medium, information processing method, and program
  • Information processing device, information recording medium, information processing method, and program
  • Information processing device, information recording medium, information processing method, and program

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0513] (Example 1) An example of setting and recording a duplication control information of an additional header relative to N packets (MMTP packets or TLV packets)

example 2

[0514] (Example 2) An example of setting a duplication control information recording an additional header relative to configuration data of a packet (MMTP packet or TLV packet) having a fixed length

example 3

[0515] (Example 3) An example of setting a duplication control information recording an additional header relative to configuration data of a packet (MMTP packet or TLV packet) having a variable length

[0516] Hereinafter, such additional header setting examples will be sequentially described.

[0517] [6-2-1. (Example 1) An example of setting and recording an additional header with respect to N packets (MMTP packets or TLV packets)]

[0518] First, refer to Figure 19 An example in which an additional header in which one copy control information is recorded is set with respect to N packets (MMTP packets or TLV packets) is described.

[0519] Figure 19 is a diagram showing an example of a configuration of recording data against a medium, as referred to above Figure 17 or Figure 18 mentioned.

[0520] Such as Figure 19 As shown in , an information processing apparatus records data received from a transmitting device such as a broadcasting station in a medium in which...

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Abstract

The present invention implements a configuration for reproducing block encrypted MMT format data with a timestamp applied thereto. An MMT format stream file and a reproduction control information fileare created and recorded on a medium. The stream file is composed of: data blocks encrypted with an encryption key generated with an additional header as a seed, the additional header storing copy control information for each block; and the additional header. The reproduction control information file stores position identification information capable of determining the position in reproduction data, the position of a seed applied to the decryption of the reproduction data, the position of a timestamp, and the position of a seed applied to the decryption of the timestamp. The recorded information is used to perform data decryption and data reproduction with a timestamp applied thereto.

Description

technical field [0001] The present disclosure relates to an information processing device, an information recording medium, an information processing method, and a program. More specifically, the present disclosure relates to information in which a process of inputting MPEG Media Transport (MMT) format data standardized as a future data transmission standard into a broadcast wave or the like to be recorded in a medium, or a reproduction process of medium recorded data is performed Processing equipment, information recording medium, information processing method and program. Background technique [0002] Currently, standardization of data transmission for realizing broadcasting of high image quality images such as 4K images, 8K images, etc. has progressed, and as one of the standardizations, a data distribution system using the MPEG Media Transport (MMT) format has been considered. [0003] The MMT format defines a data transfer system (transmission format), for example, to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B20/10G11B20/12H04N5/913H04N5/917H04N5/92
CPCG11B20/00086H04N5/913H04N21/2347H04N21/23605H04N21/23895H04N21/43853H04N21/85406H04N21/2362H04N21/242H04N2005/91364H04N9/8042H04N9/8233G11B20/12H04N9/82H04L9/0861G11B20/00492G11B20/10527
Inventor 上田健二朗内村幸一
Owner SONY CORP