JPH0218783B2 - - Google Patents

Info

Publication number
JPH0218783B2
JPH0218783B2 JP58242184A JP24218483A JPH0218783B2 JP H0218783 B2 JPH0218783 B2 JP H0218783B2 JP 58242184 A JP58242184 A JP 58242184A JP 24218483 A JP24218483 A JP 24218483A JP H0218783 B2 JPH0218783 B2 JP H0218783B2
Authority
JP
Japan
Prior art keywords
signal
key information
key signal
key
information
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP58242184A
Other languages
English (en)
Japanese (ja)
Other versions
JPS60134643A (ja
Inventor
Seiichi Nanba
Kyukichi Yamane
Takehiko Yoshino
Naoki Kawai
Masanori Saito
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Japan Broadcasting Corp
Original Assignee
Japan Broadcasting Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Japan Broadcasting Corp filed Critical Japan Broadcasting Corp
Priority to JP58242184A priority Critical patent/JPS60134643A/ja
Publication of JPS60134643A publication Critical patent/JPS60134643A/ja
Publication of JPH0218783B2 publication Critical patent/JPH0218783B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/65—Arrangements characterised by transmission systems for broadcast
    • H04H20/76—Wired systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/09—Arrangements for device control with a direct linkage to broadcast information or to broadcast space-time; Arrangements for control of broadcast-related services
    • H04H60/14—Arrangements for conditional access to broadcast information or to broadcast-related services
    • H04H60/15—Arrangements for conditional access to broadcast information or to broadcast-related services on receiving information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/09—Arrangements for device control with a direct linkage to broadcast information or to broadcast space-time; Arrangements for control of broadcast-related services
    • H04H60/14—Arrangements for conditional access to broadcast information or to broadcast-related services
    • H04H60/16—Arrangements for conditional access to broadcast information or to broadcast-related services on playing information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/09—Arrangements for device control with a direct linkage to broadcast information or to broadcast space-time; Arrangements for control of broadcast-related services
    • H04H60/14—Arrangements for conditional access to broadcast information or to broadcast-related services
    • H04H60/23—Arrangements for conditional access to broadcast information or to broadcast-related services using cryptography, e.g. encryption, authentication, key distribution
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/76—Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet
    • H04H60/81—Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet characterised by the transmission system itself
    • H04H60/98—Physical distribution of media, e.g. postcards, CDs or DVDs
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Theoretical Computer Science (AREA)
JP58242184A 1983-12-23 1983-12-23 制御情報伝送方式 Granted JPS60134643A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58242184A JPS60134643A (ja) 1983-12-23 1983-12-23 制御情報伝送方式

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58242184A JPS60134643A (ja) 1983-12-23 1983-12-23 制御情報伝送方式

Publications (2)

Publication Number Publication Date
JPS60134643A JPS60134643A (ja) 1985-07-17
JPH0218783B2 true JPH0218783B2 (da) 1990-04-26

Family

ID=17085553

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58242184A Granted JPS60134643A (ja) 1983-12-23 1983-12-23 制御情報伝送方式

Country Status (1)

Country Link
JP (1) JPS60134643A (da)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2945670B2 (ja) * 1988-02-29 1999-09-06 日本放送協会 放送用受信機

Also Published As

Publication number Publication date
JPS60134643A (ja) 1985-07-17

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term