Title:
送信装置および受信装置
Document Type and Number:
Japanese Patent JP6397357
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a conditional access system for enabling a broadcast business company to manage a version of a related information sub-system activated in a receiver.SOLUTION: A conditional access system S comprises: a receiver 2 in which a plurality of related information sub-system programs P are stored in advance; and a transmitter 1. The transmitter 1 transmits, to the receiver 2, a CA load descriptor in which a first program identification for identifying a related information sub-system program P for each conditional access method and a first load instruction for selecting one version from one or more existing versions of the related information sub-system program P are set. The receiver 2 activates a related information sub-system program P identified by a first program identification corresponding to the transmitter 2's conditional access method and its first load instruction.
Inventors:
Nishimoto Tomonari
Tomoyuki Inoue
Tomoyuki Inoue
Application Number:
JP2015039752A
Publication Date:
September 26, 2018
Filing Date:
March 02, 2015
Export Citation:
Assignee:
Japan Broadcasting Corporation
General foundation nhk engineering system
General foundation nhk engineering system
International Classes:
H04N21/266; H04H20/28; H04H20/93; H04H60/15; H04H60/23; H04H60/25; H04L9/08; H04L9/14; H04N21/2362; H04N21/4623
Domestic Patent References:
JP2009267605A | ||||
JP2005515725A | ||||
JP2013258507A | ||||
JP2013070247A | ||||
JP2000350185A |
Attorney, Agent or Firm:
Isono International Patent and Trademark Office
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