CA642144A - Subscription television system - Google Patents
Subscription television systemInfo
- Publication number
- CA642144A CA642144A CA642144A CA642144DA CA642144A CA 642144 A CA642144 A CA 642144A CA 642144 A CA642144 A CA 642144A CA 642144D A CA642144D A CA 642144DA CA 642144 A CA642144 A CA 642144A
- Authority
- CA
- Canada
- Prior art keywords
- television system
- subscription television
- subscription
- television
- 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
Links
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA642144T |
Publications (1)
Publication Number | Publication Date |
---|---|
CA642144A true CA642144A (en) | 1962-06-05 |
Family
ID=35920667
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA642144A Expired CA642144A (en) | Subscription television system |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA642144A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4642688A (en) * | 1983-06-24 | 1987-02-10 | Scientific Atlanta, Inc. | Method and apparatus for creating encrypted and decrypted television signals |
US5553141A (en) * | 1982-07-12 | 1996-09-03 | Scientific-Atlanta, Inc. | Encryption and decryption (scrambling and unscrambling) of video signals |
-
0
- CA CA642144A patent/CA642144A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5553141A (en) * | 1982-07-12 | 1996-09-03 | Scientific-Atlanta, Inc. | Encryption and decryption (scrambling and unscrambling) of video signals |
US4642688A (en) * | 1983-06-24 | 1987-02-10 | Scientific Atlanta, Inc. | Method and apparatus for creating encrypted and decrypted television signals |
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