JPH057917B2 - - Google Patents

Info

Publication number
JPH057917B2
JPH057917B2 JP57013672A JP1367282A JPH057917B2 JP H057917 B2 JPH057917 B2 JP H057917B2 JP 57013672 A JP57013672 A JP 57013672A JP 1367282 A JP1367282 A JP 1367282A JP H057917 B2 JPH057917 B2 JP H057917B2
Authority
JP
Japan
Prior art keywords
code
program
signal
scrambled
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 - Lifetime
Application number
JP57013672A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58131875A (ja
Inventor
Takafumi Okada
Hisao Mogi
Kazuo Yamagiwa
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP57013672A priority Critical patent/JPS58131875A/ja
Publication of JPS58131875A publication Critical patent/JPS58131875A/ja
Publication of JPH057917B2 publication Critical patent/JPH057917B2/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
    • H04N7/162—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
JP57013672A 1982-01-30 1982-01-30 テレビジョン信号伝送装置 Granted JPS58131875A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57013672A JPS58131875A (ja) 1982-01-30 1982-01-30 テレビジョン信号伝送装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57013672A JPS58131875A (ja) 1982-01-30 1982-01-30 テレビジョン信号伝送装置

Publications (2)

Publication Number Publication Date
JPS58131875A JPS58131875A (ja) 1983-08-05
JPH057917B2 true JPH057917B2 (fr) 1993-01-29

Family

ID=11839680

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57013672A Granted JPS58131875A (ja) 1982-01-30 1982-01-30 テレビジョン信号伝送装置

Country Status (1)

Country Link
JP (1) JPS58131875A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61198889A (ja) * 1985-02-27 1986-09-03 Nec Corp 有料テレビジヨンの端末インタフエ−ス装置
ES2222543T3 (es) * 1991-09-30 2005-02-01 Interactive Television, S.A. Procedimiento y su equipo para comunicacion interactiva bidireccional por television.

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0237749A (ja) * 1988-07-27 1990-02-07 Nec Corp マスタースライス型半導体装置

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0237749A (ja) * 1988-07-27 1990-02-07 Nec Corp マスタースライス型半導体装置

Also Published As

Publication number Publication date
JPS58131875A (ja) 1983-08-05

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