JPS54106114A - Information transmission system - Google Patents
Information transmission systemInfo
- Publication number
- JPS54106114A JPS54106114A JP1373378A JP1373378A JPS54106114A JP S54106114 A JPS54106114 A JP S54106114A JP 1373378 A JP1373378 A JP 1373378A JP 1373378 A JP1373378 A JP 1373378A JP S54106114 A JPS54106114 A JP S54106114A
- Authority
- JP
- Japan
- Prior art keywords
- units
- center
- power source
- center system
- keyboard
- 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
Abstract
PURPOSE: To ensure the accurate grasp of the coupling time to save the unnecessary time as well as to secure the effective working of the center in the system through which the video or aural information stored in the center is transmitted by the request of the terminal unit, by securing an automatic display of the coupling via the power source ON of the terminal.
CONSTITUTION: The following component units are provided: transmission devices 3∼4 which transmit the stored video or aural information; the center system including both transmission devices 2; and terminal units A∼N which contain keyboard 14 to supply the request information and transmisstion/reception device 9. Units A∼N are coupled with the center system via modulators 10a∼10n and 13a∼13n plus demodulators 11a∼11n and 12a∼12n respectively. Then the circuit is provided to device 9 of units A∼N to encode the genre of keyboard 14. Thus, the input is blocked for keyboard 14 before and after of the make and break of the power source and also the code indicating the make or break of the power source is sent to the center system in several times. At the center system, the code is decided to form a link, thus the stored and specified information being transmitted.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1373378A JPS54106114A (en) | 1978-02-08 | 1978-02-08 | Information transmission system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1373378A JPS54106114A (en) | 1978-02-08 | 1978-02-08 | Information transmission system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54106114A true JPS54106114A (en) | 1979-08-20 |
Family
ID=11841439
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1373378A Pending JPS54106114A (en) | 1978-02-08 | 1978-02-08 | Information transmission system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54106114A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5786060A (en) * | 1980-11-18 | 1982-05-28 | Matsushita Electric Ind Co Ltd | Meter voltage amplifier circuit |
-
1978
- 1978-02-08 JP JP1373378A patent/JPS54106114A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5786060A (en) * | 1980-11-18 | 1982-05-28 | Matsushita Electric Ind Co Ltd | Meter voltage amplifier circuit |
JPH026024B2 (en) * | 1980-11-18 | 1990-02-07 | Matsushita Electric Ind Co Ltd |
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