Title:
デジタル放送送信装置およびデジタル放送受信装置
Document Type and Number:
Japanese Patent JP5887399
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a digital broadcast transmission apparatus capable of distributing an access control program by a data carousel.SOLUTION: A digital broadcast transmission apparatus 1 includes: distribution data generation means 13 for encrypting an access control program by a master secret key and generating distribution data by the data type of a data carousel; distribution data scramble means 14 for encrypting the distribution data by a scramble key and generating encryption distribution data; common information generation means 15 for encrypting the scramble key by a transmission line protection key and generating common information; individual information generation means 16 for encrypting the transmission line protection key by a master key and generating individual information; download table generation means 17 for generating a download table including an identifier which indicates a fact that the access control program is transmitted by the data carousel; and multiplex means 19 for multiplexing the generated information.
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| WO/2001/078395 | OBJECT-CONDITIONAL ACCESS SYSTEM |
| WO/2019/015739 | ENCRYPTED AUDIO STREAMING |
| WO/2021/071785 | SECURE DISTRIBUTION OF MULTI-RESOLUTION POINT CLOUD |
Inventors:
Nishimoto Tomonari
Hiroyuki Kawakita
Tomoyuki Inoue
Hiroyuki Kawakita
Tomoyuki Inoue
Application Number:
JP2014263788A
Publication Date:
March 16, 2016
Filing Date:
December 26, 2014
Export Citation:
Assignee:
Japan Broadcasting Corporation
International Classes:
H04N21/266; H04L9/08; H04N21/4623
Domestic Patent References:
| JP2009267605A | ||||
| JP2004221935A | ||||
| JP2009147905A |
Foreign References:
| US20050091699 | ||||
| WO2006082812A1 |
Attorney, Agent or Firm:
Isono International Patent and Trademark Office