JPS57194688A - Method for data communication in catv system - Google Patents
Method for data communication in catv systemInfo
- Publication number
- JPS57194688A JPS57194688A JP56081618A JP8161881A JPS57194688A JP S57194688 A JPS57194688 A JP S57194688A JP 56081618 A JP56081618 A JP 56081618A JP 8161881 A JP8161881 A JP 8161881A JP S57194688 A JPS57194688 A JP S57194688A
- Authority
- JP
- Japan
- Prior art keywords
- channel
- data
- center
- signals
- program
- 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.)
- Pending
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
- H04N7/162—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing
- H04N7/165—Centralised control of user terminal ; Registering at central
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56081618A JPS57194688A (en) | 1981-05-27 | 1981-05-27 | Method for data communication in catv system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56081618A JPS57194688A (en) | 1981-05-27 | 1981-05-27 | Method for data communication in catv system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57194688A true JPS57194688A (en) | 1982-11-30 |
Family
ID=13751308
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56081618A Pending JPS57194688A (en) | 1981-05-27 | 1981-05-27 | Method for data communication in catv system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57194688A (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01130298A (ja) * | 1987-11-17 | 1989-05-23 | Matsushita Electric Ind Co Ltd | テレビ共聴網内通信方式 |
-
1981
- 1981-05-27 JP JP56081618A patent/JPS57194688A/ja active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01130298A (ja) * | 1987-11-17 | 1989-05-23 | Matsushita Electric Ind Co Ltd | テレビ共聴網内通信方式 |
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