ES296728Y - Codificador-decodificador para evitar y-o dificultar la obtencion de copias de programas de ordenador. - Google Patents

Codificador-decodificador para evitar y-o dificultar la obtencion de copias de programas de ordenador.

Info

Publication number
ES296728Y
ES296728Y ES1985296728U ES296728U ES296728Y ES 296728 Y ES296728 Y ES 296728Y ES 1985296728 U ES1985296728 U ES 1985296728U ES 296728 U ES296728 U ES 296728U ES 296728 Y ES296728 Y ES 296728Y
Authority
ES
Spain
Prior art keywords
decoder
encoder
avoid
computer programs
difficult obtaining
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
ES1985296728U
Other languages
English (en)
Other versions
ES296728U (es
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.)
PELLING N JOHN M
Original Assignee
PELLING N JOHN M
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=10562483&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES296728(Y) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by PELLING N JOHN M filed Critical PELLING N JOHN M
Publication of ES296728U publication Critical patent/ES296728U/es
Application granted granted Critical
Publication of ES296728Y publication Critical patent/ES296728Y/es
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09C—CIPHERING OR DECIPHERING APPARATUS FOR CRYPTOGRAPHIC OR OTHER PURPOSES INVOLVING THE NEED FOR SECRECY
    • G09C1/00—Apparatus or methods whereby a given sequence of signs, e.g. an intelligible text, is transformed into an unintelligible sequence of signs by transposing the signs or groups of signs or by replacing them by others according to a predetermined system
    • G09C1/04—Apparatus or methods whereby a given sequence of signs, e.g. an intelligible text, is transformed into an unintelligible sequence of signs by transposing the signs or groups of signs or by replacing them by others according to a predetermined system with sign carriers or indicators moved relative to one another to positions determined by a permutation code, or key, so as to indicate the appropriate corresponding clear or ciphered text

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Credit Cards Or The Like (AREA)
  • Toys (AREA)
ES1985296728U 1984-06-15 1985-06-14 Codificador-decodificador para evitar y-o dificultar la obtencion de copias de programas de ordenador. Expired ES296728Y (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8415281 1984-06-15

Publications (2)

Publication Number Publication Date
ES296728U ES296728U (es) 1988-03-01
ES296728Y true ES296728Y (es) 1988-11-16

Family

ID=10562483

Family Applications (1)

Application Number Title Priority Date Filing Date
ES1985296728U Expired ES296728Y (es) 1984-06-15 1985-06-14 Codificador-decodificador para evitar y-o dificultar la obtencion de copias de programas de ordenador.

Country Status (10)

Country Link
US (1) US4972477A (es)
EP (1) EP0185724A1 (es)
JP (1) JPS61502427A (es)
CA (1) CA1265109A (es)
ES (1) ES296728Y (es)
GB (1) GB2167891B (es)
IE (1) IE56668B1 (es)
PT (1) PT80644B (es)
WO (1) WO1986000162A1 (es)
ZA (1) ZA854457B (es)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2196169A (en) * 1986-10-13 1988-04-20 Nicholas John Marshall Pelling An encoding/decoding device
US5024495A (en) * 1990-04-20 1991-06-18 Anderson David B Computer software protection, by optical effects
GB9123797D0 (en) * 1991-11-08 1992-01-02 Megaprint Group The Limited Information-encrypting device and method
DE19750779C1 (de) * 1997-11-10 1999-01-14 Deutsche Telekom Ag Verfahren zum Identifizieren von Verrätern proprietärer Daten
DE19847942A1 (de) * 1998-04-03 2000-04-13 Deutsche Telekom Ag Verfahren zum Einbringen manipulationssicherer digitaler Fingerabdrücke in elektronische Dokumente
DE19816356C2 (de) 1998-04-03 2001-01-25 Deutsche Telekom Ag Verfahren zum Einbringen manipulationssicherer digitaler Fingerabdrücke in elektronische Dokumente
DE59914374D1 (de) 1998-10-09 2007-07-26 Deutsche Telekom Ag Verfahren zum Einbringen und zur Analyse von manipulationssicheren digitalen Fingerabdrücken in elektronischen Dokumenten
US7406174B2 (en) * 2003-10-21 2008-07-29 Widevine Technologies, Inc. System and method for n-dimensional encryption

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US387957A (en) * 1888-08-14 Piebbe bfigis mobeolsr aistd claude dueaistd
GB222505A (en) * 1923-09-28 1925-04-16 Cryptograph Ab Improved ciphering apparatus
GB367528A (en) * 1931-01-24 1932-02-25 Jacob Smith Ross Coding and decoding machine or cryptograph machine
US2296312A (en) * 1941-05-12 1942-09-22 Edward J Sheehy Variable authenticator
US2668369A (en) * 1951-03-13 1954-02-09 Philip G Hilbert Cipher device
US2624958A (en) * 1951-09-06 1953-01-13 Fine Harry Cryptogrammic device
GB782249A (en) * 1956-01-21 1957-09-04 Meyer Horst Improvements in or relating to playballs
GB859046A (en) * 1956-04-30 1961-01-18 Zygmunt Stanislaw Piotrowski Cipher apparatus
US2941313A (en) * 1958-05-09 1960-06-21 Saul R Levin Magnifying attachment for a world globe
CH409474A (de) * 1962-09-19 1966-03-15 Europ Handelsges Anst Chiffriertafel an einem mechanischen Chiffriergerät
GB1523671A (en) * 1976-12-09 1978-09-06 Tilford B E L Games and apparatus therefor
US4107655A (en) * 1977-01-10 1978-08-15 Moorhouse John H Mechanical code for operated device for access to coded electrical circuits
US4373281A (en) * 1978-01-19 1983-02-15 Sebastian James A Device for displaying indicia
US4473228A (en) * 1981-06-29 1984-09-25 Hart John R Three-dimensional combinatorial linkage
US4415158A (en) * 1981-09-21 1983-11-15 General Symmetrics, Inc. Puzzle
US4599489A (en) * 1984-02-22 1986-07-08 Gordian Systems, Inc. Solid state key for controlling access to computer software
US4560164A (en) * 1984-06-13 1985-12-24 Darling Phillip H Toy puzzle
US4625967A (en) * 1985-06-04 1986-12-02 Yu Chin Lai Movable surface global puzzle

Also Published As

Publication number Publication date
PT80644A (en) 1985-07-01
ZA854457B (en) 1986-02-26
IE56668B1 (en) 1991-10-23
ES296728U (es) 1988-03-01
GB8515064D0 (en) 1985-07-17
EP0185724A1 (en) 1986-07-02
WO1986000162A1 (en) 1986-01-03
JPS61502427A (ja) 1986-10-23
GB2167891B (en) 1989-05-24
IE851442L (en) 1985-12-15
CA1265109A (en) 1990-01-30
PT80644B (en) 1986-11-12
GB2167891A (en) 1986-06-04
US4972477A (en) 1990-11-20

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