DE3371947D1 - Generator of random number sequences - Google Patents

Generator of random number sequences

Info

Publication number
DE3371947D1
DE3371947D1 DE8383201780T DE3371947T DE3371947D1 DE 3371947 D1 DE3371947 D1 DE 3371947D1 DE 8383201780 T DE8383201780 T DE 8383201780T DE 3371947 T DE3371947 T DE 3371947T DE 3371947 D1 DE3371947 D1 DE 3371947D1
Authority
DE
Germany
Prior art keywords
generator
random number
number sequences
sequences
random
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
DE8383201780T
Other languages
English (en)
Inventor
Jean-Pierre Societe Ci Arragon
Christian Societe Civil Cantou
Gerard Societe Civile S Marie
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
Priority claimed from FR8221361A external-priority patent/FR2538192B1/fr
Priority claimed from FR8313540A external-priority patent/FR2551235B1/fr
Application filed by Radiotechnique SA filed Critical Radiotechnique SA
Application granted granted Critical
Publication of DE3371947D1 publication Critical patent/DE3371947D1/de
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)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
DE8383201780T 1982-12-20 1983-12-15 Generator of random number sequences Expired DE3371947D1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8221361A FR2538192B1 (fr) 1982-12-20 1982-12-20 Generateur de sequences numeriques pseudoaleatoires
FR8313540A FR2551235B1 (fr) 1983-08-22 1983-08-22 Generateur de sequences numeriques pseudoaleatoires

Publications (1)

Publication Number Publication Date
DE3371947D1 true DE3371947D1 (en) 1987-07-09

Family

ID=26223195

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8383201780T Expired DE3371947D1 (en) 1982-12-20 1983-12-15 Generator of random number sequences

Country Status (3)

Country Link
US (1) US4649419A (de)
EP (1) EP0115097B1 (de)
DE (1) DE3371947D1 (de)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2184272A (en) * 1985-11-25 1987-06-17 Philips Electronic Associated Interface between a receiver and a sub-system
US4866770A (en) * 1986-07-08 1989-09-12 Scientific Atlanta, Inc. Method and apparatus for communication of video, audio, teletext, and data to groups of decoders in a communication system
US4771463A (en) * 1986-12-05 1988-09-13 Siemens Transmission Systems, Inc. Digital scrambling without error multiplication
US4852023A (en) * 1987-05-12 1989-07-25 Communications Satellite Corporation Nonlinear random sequence generators
US5412587A (en) * 1988-12-28 1995-05-02 The Boeing Company Pseudorandom stochastic data processing
US5255378A (en) * 1989-04-05 1993-10-19 Intel Corporation Method of transferring burst data in a microprocessor
US5131083A (en) * 1989-04-05 1992-07-14 Intel Corporation Method of transferring burst data in a microprocessor
CH683580A5 (fr) * 1990-02-21 1994-03-31 Kudelski Sa Procédé et dispositif d'embrouillage et de désembrouillage d'un signal vidéo.
FR2671647A1 (fr) * 1991-01-16 1992-07-17 France Etat Generateur pseudo-aleatoire.
US5235423A (en) * 1991-08-16 1993-08-10 The Grass Valley Group, Inc. Controllable pseudo random noise pattern generator for use in video special effects
US5210770A (en) * 1991-09-27 1993-05-11 Lockheed Missiles & Space Company, Inc. Multiple-signal spread-spectrum transceiver
EP0580870A4 (en) * 1992-02-14 1994-06-08 Advantest Corp Multi-channel pseudo-random pattern generator
US6947560B1 (en) * 1999-04-26 2005-09-20 Telefonaktiebolaget L M Ericsson (Publ) Method and device for effective key length control
KR100611955B1 (ko) * 1999-07-20 2006-08-11 삼성전자주식회사 스크램블러
DE10339999B4 (de) * 2003-08-29 2005-07-14 Infineon Technologies Ag Pseudozufallszahlengenerator
US8145691B2 (en) * 2006-02-24 2012-03-27 Novell, Inc. Techniques for random bit generation
US8219782B2 (en) * 2008-09-18 2012-07-10 Xilinx, Inc. Address generation
CA2664620A1 (en) 2009-05-07 2009-07-20 Avalon Microelectronics, Inc. Pseudo-random bit sequence generator
US9954708B2 (en) 2013-11-15 2018-04-24 Intel Corporation Method and apparatus for frequency interleaving
US10552988B2 (en) * 2017-12-22 2020-02-04 Intel Corporation Ordering segments of an image for encoding and transmission to a display device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2547937B2 (de) * 1975-10-25 1981-06-04 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Verfahren zum Erzeugen zufallsähnlicher Zeichenfolgen
FR2431809A1 (fr) * 1978-07-20 1980-02-15 Telediffusion Fse Procedes et dispositifs de brouillage et de debrouillage pour images de television
US4459611A (en) * 1978-08-28 1984-07-10 Fuji Xerox Co., Ltd. Image conversion system
US4329711A (en) * 1979-02-20 1982-05-11 Payview Limited Apparatus for encoding of information
US4484027A (en) * 1981-11-19 1984-11-20 Communications Satellite Corporation Security system for SSTV encryption
FR2533099A1 (fr) * 1982-09-14 1984-03-16 Radiotechnique Procede de brouillage d'images de television et dispositif de dechiffrage d'images ainsi brouillees

Also Published As

Publication number Publication date
US4649419A (en) 1987-03-10
EP0115097B1 (de) 1987-06-03
EP0115097A1 (de) 1984-08-08

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee