IT1157144B - Sistema di procedimento di protezione per impedire la ricezione non autorizzata di trasmissioni televisive via satellite ad abbonamento sstv - Google Patents

Sistema di procedimento di protezione per impedire la ricezione non autorizzata di trasmissioni televisive via satellite ad abbonamento sstv

Info

Publication number
IT1157144B
IT1157144B IT68466/82A IT6846682A IT1157144B IT 1157144 B IT1157144 B IT 1157144B IT 68466/82 A IT68466/82 A IT 68466/82A IT 6846682 A IT6846682 A IT 6846682A IT 1157144 B IT1157144 B IT 1157144B
Authority
IT
Italy
Prior art keywords
key
random number
user
generator
enciphered
Prior art date
Application number
IT68466/82A
Other languages
English (en)
Other versions
IT8268466A0 (it
Inventor
Lin-Nan Lee
Russell J Fang
Original Assignee
Communications Satellite Corp
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 Communications Satellite Corp filed Critical Communications Satellite Corp
Priority to IT68466/82A priority Critical patent/IT1157144B/it
Publication of IT8268466A0 publication Critical patent/IT8268466A0/it
Application granted granted Critical
Publication of IT1157144B publication Critical patent/IT1157144B/it

Links

Landscapes

  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
IT68466/82A 1982-12-14 1982-12-14 Sistema di procedimento di protezione per impedire la ricezione non autorizzata di trasmissioni televisive via satellite ad abbonamento sstv IT1157144B (it)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IT68466/82A IT1157144B (it) 1982-12-14 1982-12-14 Sistema di procedimento di protezione per impedire la ricezione non autorizzata di trasmissioni televisive via satellite ad abbonamento sstv

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT68466/82A IT1157144B (it) 1982-12-14 1982-12-14 Sistema di procedimento di protezione per impedire la ricezione non autorizzata di trasmissioni televisive via satellite ad abbonamento sstv

Publications (2)

Publication Number Publication Date
IT8268466A0 IT8268466A0 (it) 1982-12-14
IT1157144B true IT1157144B (it) 1987-02-11

Family

ID=11309494

Family Applications (1)

Application Number Title Priority Date Filing Date
IT68466/82A IT1157144B (it) 1982-12-14 1982-12-14 Sistema di procedimento di protezione per impedire la ricezione non autorizzata di trasmissioni televisive via satellite ad abbonamento sstv

Country Status (1)

Country Link
IT (1) IT1157144B (it)

Also Published As

Publication number Publication date
IT8268466A0 (it) 1982-12-14

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