JPS625512B2 - - Google Patents

Info

Publication number
JPS625512B2
JPS625512B2 JP55107678A JP10767880A JPS625512B2 JP S625512 B2 JPS625512 B2 JP S625512B2 JP 55107678 A JP55107678 A JP 55107678A JP 10767880 A JP10767880 A JP 10767880A JP S625512 B2 JPS625512 B2 JP S625512B2
Authority
JP
Japan
Prior art keywords
code
enable
receiving
transmitting
key code
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
Application number
JP55107678A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5733878A (en
Inventor
Tsutomu Kanai
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.)
Faurecia Clarion Electronics Co Ltd
Original Assignee
Clarion Co Ltd
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 Clarion Co Ltd filed Critical Clarion Co Ltd
Priority to JP10767880A priority Critical patent/JPS5733878A/ja
Publication of JPS5733878A publication Critical patent/JPS5733878A/ja
Publication of JPS625512B2 publication Critical patent/JPS625512B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/167—Systems rendering the television signal unintelligible and subsequently intelligible
    • H04N7/1675—Providing digital key or authorisation information for generation or regeneration of the scrambling sequence

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
JP10767880A 1980-08-07 1980-08-07 Cipher decoding system Granted JPS5733878A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10767880A JPS5733878A (en) 1980-08-07 1980-08-07 Cipher decoding system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10767880A JPS5733878A (en) 1980-08-07 1980-08-07 Cipher decoding system

Publications (2)

Publication Number Publication Date
JPS5733878A JPS5733878A (en) 1982-02-24
JPS625512B2 true JPS625512B2 (enExample) 1987-02-05

Family

ID=14465199

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10767880A Granted JPS5733878A (en) 1980-08-07 1980-08-07 Cipher decoding system

Country Status (1)

Country Link
JP (1) JPS5733878A (enExample)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5980080A (ja) * 1982-10-30 1984-05-09 Pioneer Electronic Corp Ｃａｔｖ端末器における視聴可否制御装置
JPH0787453B2 (ja) * 1985-06-28 1995-09-20 ソニー株式会社 情報サービスシステム

Also Published As

Publication number Publication date
JPS5733878A (en) 1982-02-24

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