JPS6439841A - Data transmission system - Google Patents
Data transmission systemInfo
- Publication number
- JPS6439841A JPS6439841A JP19554587A JP19554587A JPS6439841A JP S6439841 A JPS6439841 A JP S6439841A JP 19554587 A JP19554587 A JP 19554587A JP 19554587 A JP19554587 A JP 19554587A JP S6439841 A JPS6439841 A JP S6439841A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- outputted
- information data
- analog
- digital
- 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
Landscapes
- Time-Division Multiplex Systems (AREA)
Abstract
PURPOSE:To contrive the improvement of the transmission efficiency by mixing a separated digital information data into a gap of an analog information data and transmitting it, by switching the separated digital information data and the analog information data. CONSTITUTION:A level detector 4 executes a level detection of an output of an AGC circuit 3, and when an analog signal AS is inputted, a control signal C outputted from a control part 5 becomes H and gates 6, 7 are switched, respectively, and the analog signal AS outputted from the AGC circuit 3 is transmitted. When the analog signal AS is not inputted, a start separator SS for showing a start of a digital signal data is added to the head of a digital signal DS reserved in a memory 8, and it is supplied to an encoder 10 and coding is executed. In this case, the control signal outputted from the control part 5 becomes L and the gates 6, 7 are switched, respectively, and the digital signal DS outputted from the encoder 10 is transmitted. In such a way, the transmission efficiency is improved.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19554587A JPS6439841A (en) | 1987-08-05 | 1987-08-05 | Data transmission system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19554587A JPS6439841A (en) | 1987-08-05 | 1987-08-05 | Data transmission system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6439841A true JPS6439841A (en) | 1989-02-10 |
Family
ID=16342881
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP19554587A Pending JPS6439841A (en) | 1987-08-05 | 1987-08-05 | Data transmission system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6439841A (en) |
-
1987
- 1987-08-05 JP JP19554587A patent/JPS6439841A/en active Pending
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