JPH0519327B2 - - Google Patents

Info

Publication number
JPH0519327B2
JPH0519327B2 JP62257055A JP25705587A JPH0519327B2 JP H0519327 B2 JPH0519327 B2 JP H0519327B2 JP 62257055 A JP62257055 A JP 62257055A JP 25705587 A JP25705587 A JP 25705587A JP H0519327 B2 JPH0519327 B2 JP H0519327B2
Authority
JP
Japan
Prior art keywords
shift register
word
pseudo
binary sequence
sequence generator
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
JP62257055A
Other languages
English (en)
Japanese (ja)
Other versions
JPS64811A (en
JPH01811A (ja
Inventor
Henrii Joozefu Beekaa
Ryutsuku Emieru Rushian Boosu
Piitaa Robaato Burenando
Edomundo Rafuaeru Buraun
Jerarudo Ofurei Kurozaa
Uiruherumusu Maruteinusu Doon
Sutanrei Meikinson Edowaadoson
Sutefuan Erii
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.)
British Broadcasting Corp
BAE Systems Electronics Ltd
Original Assignee
British Broadcasting Corp
Marconi 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
Priority claimed from GB848412431A external-priority patent/GB8412431D0/en
Application filed by British Broadcasting Corp, Marconi Co Ltd filed Critical British Broadcasting Corp
Publication of JPS64811A publication Critical patent/JPS64811A/ja
Publication of JPH01811A publication Critical patent/JPH01811A/ja
Publication of JPH0519327B2 publication Critical patent/JPH0519327B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/84—Generating pulses having a predetermined statistical distribution of a parameter, e.g. random pulse generators
    • 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)
  • Error Detection And Correction (AREA)
  • Time-Division Multiplex Systems (AREA)
JP62-257055A 1984-02-06 1987-10-12 擬似ランダムバイナリシーケンス発生器 Granted JPH01811A (ja)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB8403046 1984-02-06
GB8403046 1984-02-06
GB848412431A GB8412431D0 (en) 1984-05-16 1984-05-16 Scrambling methods
GB8412431 1984-05-16

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP60500689A Division JPS61502435A (ja) 1984-02-06 1985-02-04 擬似ランダムバイナリシ−ケンス発生器

Publications (3)

Publication Number Publication Date
JPS64811A JPS64811A (en) 1989-01-05
JPH01811A JPH01811A (ja) 1989-01-05
JPH0519327B2 true JPH0519327B2 (2) 1993-03-16

Family

ID=

Also Published As

Publication number Publication date
EP0171408A1 (en) 1986-02-19
EP0246714B1 (en) 1990-11-22
DE3578285D1 (de) 1990-07-19
DE3580049D1 (de) 1990-11-08
DE3580679D1 (de) 1991-01-03
EP0246714A1 (en) 1987-11-25
US4748576A (en) 1988-05-31
JPS64811A (en) 1989-01-05
EP0247703A1 (en) 1987-12-02
JPH0542175B2 (2) 1993-06-25
JPS64812A (en) 1989-01-05
WO1985003604A1 (en) 1985-08-15
EP0171408B1 (en) 1990-06-13
EP0247703B1 (en) 1990-10-03

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