JPS56759A - Terminal station unit for communication - Google Patents
Terminal station unit for communicationInfo
- Publication number
- JPS56759A JPS56759A JP7587979A JP7587979A JPS56759A JP S56759 A JPS56759 A JP S56759A JP 7587979 A JP7587979 A JP 7587979A JP 7587979 A JP7587979 A JP 7587979A JP S56759 A JPS56759 A JP S56759A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- circuit
- stored
- digital
- output
- 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
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/204—Multiple access
- H04B7/2043—Mixed mode, TDM and FDM systems
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Time-Division Multiplex Systems (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
- Radio Relay Systems (AREA)
Abstract
PURPOSE:To establish economical time sharing multiple connection system communication use terminal station unit, by storing and processing the part excluding the fixed or semi-fixed code of the burst of input modulator and output of demodulator to the memory circuit. CONSTITUTION:In a ground station of satellite communication, the signal input to the terminal 3 is converted at the conversion circuit 29 being the digital signal of a given form. This signal is once stored in the memory circuit 30 together with the digital signal corresponding to the signal fed to other input terminals 3a, 3b under the control of the processor 31. The signal stored in the circuit 30 is added with the fixed code and semi-fixed control signal for the synchronism processed with require processing and read out in high speed at the unit 31 to form the burst and output is made after digital modulation 9. Further, the reception signal is in digital demodulation 12 and stored in the memory circuit 33 under the control of the processor 33. The digital signal stored in the circuit 32 is read out with required processing at the unit 33 and given to the conversion circuit 34, and it is converted into the signal form corresponding to the ground station for output.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7587979A JPS56759A (en) | 1979-06-15 | 1979-06-15 | Terminal station unit for communication |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7587979A JPS56759A (en) | 1979-06-15 | 1979-06-15 | Terminal station unit for communication |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56759A true JPS56759A (en) | 1981-01-07 |
Family
ID=13589000
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7587979A Pending JPS56759A (en) | 1979-06-15 | 1979-06-15 | Terminal station unit for communication |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56759A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5291607A (en) * | 1976-01-27 | 1977-08-02 | Siemens Ag | Demultiplexer for digital signals interleaved by word unit and synchronizing initially |
-
1979
- 1979-06-15 JP JP7587979A patent/JPS56759A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5291607A (en) * | 1976-01-27 | 1977-08-02 | Siemens Ag | Demultiplexer for digital signals interleaved by word unit and synchronizing initially |
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