DE3280237D1 - Sicherheitssystem fuer sstv-verschluesselung. - Google Patents

Sicherheitssystem fuer sstv-verschluesselung.

Info

Publication number
DE3280237D1
DE3280237D1 DE8383900222T DE3280237T DE3280237D1 DE 3280237 D1 DE3280237 D1 DE 3280237D1 DE 8383900222 T DE8383900222 T DE 8383900222T DE 3280237 T DE3280237 T DE 3280237T DE 3280237 D1 DE3280237 D1 DE 3280237D1
Authority
DE
Germany
Prior art keywords
key
random number
generator
encryption
encipher
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 - Fee Related
Application number
DE8383900222T
Other languages
English (en)
Inventor
Lin-Nan Lee
Russell J Fang
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.)
Comsat Corp
Original Assignee
Comsat 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 Comsat Corp filed Critical Comsat Corp
Application granted granted Critical
Publication of DE3280237D1 publication Critical patent/DE3280237D1/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • 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
DE8383900222T 1981-11-19 1982-11-19 Sicherheitssystem fuer sstv-verschluesselung. Expired - Fee Related DE3280237D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/322,833 US4484027A (en) 1981-11-19 1981-11-19 Security system for SSTV encryption
PCT/US1982/001631 WO1983001881A1 (en) 1981-11-19 1982-11-19 A security system for sstv encryption

Publications (1)

Publication Number Publication Date
DE3280237D1 true DE3280237D1 (de) 1990-10-11

Family

ID=23256635

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8383900222T Expired - Fee Related DE3280237D1 (de) 1981-11-19 1982-11-19 Sicherheitssystem fuer sstv-verschluesselung.

Country Status (7)

Country Link
US (1) US4484027A (de)
EP (1) EP0094423B1 (de)
JP (2) JPS58501982A (de)
AT (1) ATE56333T1 (de)
CA (2) CA1194212A (de)
DE (1) DE3280237D1 (de)
WO (1) WO1983001881A1 (de)

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Also Published As

Publication number Publication date
JPS58501982A (ja) 1983-11-17
JPH06125554A (ja) 1994-05-06
CA1328501E (en) 1985-09-24
CA1194212A (en) 1985-09-24
US4484027A (en) 1984-11-20
EP0094423B1 (de) 1990-09-05
EP0094423A1 (de) 1983-11-23
WO1983001881A1 (en) 1983-05-26
CA1328501B (en) 1994-04-12
EP0094423A4 (de) 1986-11-27
ATE56333T1 (de) 1990-09-15

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