IT1239581B - Sistema di codificazione-decodificazione di trasmissioni televisive e scheda elettronica da impiegare in fase di decodificazione. - Google Patents

Sistema di codificazione-decodificazione di trasmissioni televisive e scheda elettronica da impiegare in fase di decodificazione.

Info

Publication number
IT1239581B
IT1239581B IT47602A IT4760290A IT1239581B IT 1239581 B IT1239581 B IT 1239581B IT 47602 A IT47602 A IT 47602A IT 4760290 A IT4760290 A IT 4760290A IT 1239581 B IT1239581 B IT 1239581B
Authority
IT
Italy
Prior art keywords
decoding
coding
electronic board
television broadcasts
phase
Prior art date
Application number
IT47602A
Other languages
English (en)
Other versions
IT9047602A0 (it
IT9047602A1 (it
Inventor
Silverio Tripicchio
Original Assignee
Antonini Vittorio
Silverio Tripicchio
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 Antonini Vittorio, Silverio Tripicchio filed Critical Antonini Vittorio
Priority to IT47602A priority Critical patent/IT1239581B/it
Publication of IT9047602A0 publication Critical patent/IT9047602A0/it
Priority to PL29318691A priority patent/PL293186A1/xx
Priority to AU72150/91A priority patent/AU7215091A/en
Priority to PCT/IT1991/000007 priority patent/WO1991012692A1/en
Publication of IT9047602A1 publication Critical patent/IT9047602A1/it
Application granted granted Critical
Publication of IT1239581B publication Critical patent/IT1239581B/it

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Circuits Of Receivers In General (AREA)
IT47602A 1990-02-07 1990-02-07 Sistema di codificazione-decodificazione di trasmissioni televisive e scheda elettronica da impiegare in fase di decodificazione. IT1239581B (it)

Priority Applications (4)

Application Number Priority Date Filing Date Title
IT47602A IT1239581B (it) 1990-02-07 1990-02-07 Sistema di codificazione-decodificazione di trasmissioni televisive e scheda elettronica da impiegare in fase di decodificazione.
PL29318691A PL293186A1 (en) 1990-02-07 1991-02-05 Tv signal transmission encoder-decoder system and electronic card for use in decoding
AU72150/91A AU7215091A (en) 1990-02-07 1991-02-05 Coder-decoder system for television transmissions and electronic card to be employed in decoding mode
PCT/IT1991/000007 WO1991012692A1 (en) 1990-02-07 1991-02-05 Coder-decoder system for television transmissions and electronic card to be employed in decoding mode

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT47602A IT1239581B (it) 1990-02-07 1990-02-07 Sistema di codificazione-decodificazione di trasmissioni televisive e scheda elettronica da impiegare in fase di decodificazione.

Publications (3)

Publication Number Publication Date
IT9047602A0 IT9047602A0 (it) 1990-02-07
IT9047602A1 IT9047602A1 (it) 1991-08-08
IT1239581B true IT1239581B (it) 1993-11-10

Family

ID=11261368

Family Applications (1)

Application Number Title Priority Date Filing Date
IT47602A IT1239581B (it) 1990-02-07 1990-02-07 Sistema di codificazione-decodificazione di trasmissioni televisive e scheda elettronica da impiegare in fase di decodificazione.

Country Status (4)

Country Link
AU (1) AU7215091A (it)
IT (1) IT1239581B (it)
PL (1) PL293186A1 (it)
WO (1) WO1991012692A1 (it)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2977434A (en) * 1955-04-05 1961-03-28 Skiatron Elect & Tele Decoding
US3736368A (en) * 1972-01-28 1973-05-29 Theatre Vision Inc Technique for encoding and decoding t.v. transmissions by means of a coded electronic ticket
US3777053A (en) * 1972-05-16 1973-12-04 Optical Systems Corp Converter for catv
US4430669A (en) * 1981-05-29 1984-02-07 Payview Limited Transmitting and receiving apparatus for permitting the transmission and reception of multi-tier subscription programs
JPS59208675A (ja) * 1983-05-13 1984-11-27 Nippon Denso Co Ltd 赤外螢光情報処理装置
US4696034A (en) * 1984-10-12 1987-09-22 Signal Security Technologies High security pay television system

Also Published As

Publication number Publication date
WO1991012692A1 (en) 1991-08-22
IT9047602A0 (it) 1990-02-07
AU7215091A (en) 1991-09-03
PL293186A1 (en) 1992-06-15
IT9047602A1 (it) 1991-08-08

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19960814