FR2538192B1 - Generateur de sequences numeriques pseudoaleatoires - Google Patents

Generateur de sequences numeriques pseudoaleatoires

Info

Publication number
FR2538192B1
FR2538192B1 FR8221361A FR8221361A FR2538192B1 FR 2538192 B1 FR2538192 B1 FR 2538192B1 FR 8221361 A FR8221361 A FR 8221361A FR 8221361 A FR8221361 A FR 8221361A FR 2538192 B1 FR2538192 B1 FR 2538192B1
Authority
FR
France
Prior art keywords
pseudoaleatory
sequence generator
digital sequence
digital
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
Application number
FR8221361A
Other languages
English (en)
Other versions
FR2538192A1 (fr
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.)
Radiotechnique SA
Original Assignee
Radiotechnique SA
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 Radiotechnique SA filed Critical Radiotechnique SA
Priority to FR8221361A priority Critical patent/FR2538192B1/fr
Priority to DE8383201780T priority patent/DE3371947D1/de
Priority to EP83201780A priority patent/EP0115097B1/fr
Priority to JP58239001A priority patent/JPS59167140A/ja
Publication of FR2538192A1 publication Critical patent/FR2538192A1/fr
Application granted granted Critical
Publication of FR2538192B1 publication Critical patent/FR2538192B1/fr
Priority to US06/810,529 priority patent/US4649419A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F7/58—Random or pseudo-random number generators
    • G06F7/582—Pseudo-random number generators
    • G06F7/584—Pseudo-random number generators using finite field arithmetic, e.g. using a linear feedback shift register
    • 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
    • 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
    • H04N7/169—Systems operating in the time domain of the television signal
    • H04N7/1696—Systems operating in the time domain of the television signal by changing or reversing the order of active picture signal portions
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2207/00—Indexing scheme relating to methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F2207/58—Indexing scheme relating to groups G06F7/58 - G06F7/588
    • G06F2207/581—Generating an LFSR sequence, e.g. an m-sequence; sequence may be generated without LFSR, e.g. using Galois Field arithmetic
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2207/00—Indexing scheme relating to methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F2207/58—Indexing scheme relating to groups G06F7/58 - G06F7/588
    • G06F2207/583—Serial finite field implementation, i.e. serial implementation of finite field arithmetic, generating one new bit or trit per step, e.g. using an LFSR or several independent LFSRs; also includes PRNGs with parallel operation between LFSR and outputs

Landscapes

  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computational Mathematics (AREA)
  • Computer Security & Cryptography (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Color Television Systems (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
FR8221361A 1982-12-20 1982-12-20 Generateur de sequences numeriques pseudoaleatoires Expired FR2538192B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FR8221361A FR2538192B1 (fr) 1982-12-20 1982-12-20 Generateur de sequences numeriques pseudoaleatoires
DE8383201780T DE3371947D1 (en) 1982-12-20 1983-12-15 Generator of random number sequences
EP83201780A EP0115097B1 (fr) 1982-12-20 1983-12-15 Générateur de séquences numériques pseudoaléatoires
JP58239001A JPS59167140A (ja) 1982-12-20 1983-12-20 擬似ランダム２進アドレス発生器
US06/810,529 US4649419A (en) 1982-12-20 1985-12-17 Pseudo-random binary sequency generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8221361A FR2538192B1 (fr) 1982-12-20 1982-12-20 Generateur de sequences numeriques pseudoaleatoires

Publications (2)

Publication Number Publication Date
FR2538192A1 FR2538192A1 (fr) 1984-06-22
FR2538192B1 true FR2538192B1 (fr) 1985-06-07

Family

ID=9280299

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8221361A Expired FR2538192B1 (fr) 1982-12-20 1982-12-20 Generateur de sequences numeriques pseudoaleatoires

Country Status (2)

Country Link
JP (1) JPS59167140A (fr)
FR (1) FR2538192B1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2239817A1 (en) * 1973-07-31 1975-02-28 Trt Telecom Radio Electr Digital noise generator generates random equiprobable bits - by adding outputs from non-equiprobable generator and binary-series generator
US3963905A (en) * 1974-09-11 1976-06-15 Bell Telephone Laboratories, Incorporated Periodic sequence generators using ordinary arithmetic
DE2547937B2 (de) * 1975-10-25 1981-06-04 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Verfahren zum Erzeugen zufallsähnlicher Zeichenfolgen
FR2448824A1 (fr) * 1979-02-06 1980-09-05 Telediffusion Fse Systeme de videotex muni de moyens de controle d'acces a l'information

Also Published As

Publication number Publication date
FR2538192A1 (fr) 1984-06-22
JPH0430797B2 (fr) 1992-05-22
JPS59167140A (ja) 1984-09-20

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse