CH282897A - TV channels with encrypted TV signals. - Google Patents
TV channels with encrypted TV signals.Info
- Publication number
- CH282897A CH282897A CH282897DA CH282897A CH 282897 A CH282897 A CH 282897A CH 282897D A CH282897D A CH 282897DA CH 282897 A CH282897 A CH 282897A
- Authority
- CH
- Switzerland
- Prior art keywords
- encrypted
- channels
- signals
- 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
- H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
- H04N7/17345—Control of the passage of the selected programme
- H04N7/17363—Control of the passage of the selected programme at or near the user terminal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/16—Analogue secrecy systems; Analogue subscription systems
- H04N7/162—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/16—Analogue secrecy systems; Analogue subscription systems
- H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
- H04N2007/1739—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal the upstream communication being transmitted via a separate link, e.g. telephone line
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB11453/50A GB675061A (en) | 1950-05-08 | 1950-05-08 | Improvements in television transmitters |
Publications (1)
Publication Number | Publication Date |
---|---|
CH282897A true CH282897A (en) | 1952-05-15 |
Family
ID=9986532
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH282897D CH282897A (en) | 1950-05-08 | 1950-12-20 | TV channels with encrypted TV signals. |
CH282898D CH282898A (en) | 1950-05-08 | 1950-12-20 | Television receiver for receiving an encrypted television signal. |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH282898D CH282898A (en) | 1950-05-08 | 1950-12-20 | Television receiver for receiving an encrypted television signal. |
Country Status (2)
Country | Link |
---|---|
CH (2) | CH282897A (en) |
GB (2) | GB675061A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1058096B (en) * | 1952-12-15 | 1959-05-27 | Zenith Radio Corp | Encryption or decryption device for subscription television systems |
DE1083309B (en) * | 1955-01-12 | 1960-06-15 | Skiatron Electronics And Telev | Device for the encryption or decryption of television signals |
DE1126915B (en) * | 1956-02-03 | 1962-04-05 | Skiatron Electronics And Telev | Television system for the transmission of encrypted programs |
-
1950
- 1950-05-08 GB GB11453/50A patent/GB675061A/en not_active Expired
- 1950-05-08 GB GB11454/50A patent/GB675062A/en not_active Expired
- 1950-12-20 CH CH282897D patent/CH282897A/en unknown
- 1950-12-20 CH CH282898D patent/CH282898A/en unknown
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1058096B (en) * | 1952-12-15 | 1959-05-27 | Zenith Radio Corp | Encryption or decryption device for subscription television systems |
DE1083309B (en) * | 1955-01-12 | 1960-06-15 | Skiatron Electronics And Telev | Device for the encryption or decryption of television signals |
DE1126915B (en) * | 1956-02-03 | 1962-04-05 | Skiatron Electronics And Telev | Television system for the transmission of encrypted programs |
Also Published As
Publication number | Publication date |
---|---|
GB675061A (en) | 1952-07-02 |
GB675062A (en) | 1952-07-02 |
CH282898A (en) | 1952-05-15 |
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