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
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)
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. |
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 |
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 |
PL29318691A PL293186A1 (en) | 1990-02-07 | 1991-02-05 | Tv signal transmission encoder-decoder system and electronic card for use in decoding |
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)
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 |
-
1990
- 1990-02-07 IT IT47602A patent/IT1239581B/it active IP Right Grant
-
1991
- 1991-02-05 WO PCT/IT1991/000007 patent/WO1991012692A1/en unknown
- 1991-02-05 AU AU72150/91A patent/AU7215091A/en not_active Abandoned
- 1991-02-05 PL PL29318691A patent/PL293186A1/xx unknown
Also Published As
Publication number | Publication date |
---|---|
PL293186A1 (en) | 1992-06-15 |
WO1991012692A1 (en) | 1991-08-22 |
AU7215091A (en) | 1991-09-03 |
IT9047602A0 (it) | 1990-02-07 |
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 |