JPS6489634A - System for detecting station warning information - Google Patents
System for detecting station warning informationInfo
- Publication number
- JPS6489634A JPS6489634A JP62243542A JP24354287A JPS6489634A JP S6489634 A JPS6489634 A JP S6489634A JP 62243542 A JP62243542 A JP 62243542A JP 24354287 A JP24354287 A JP 24354287A JP S6489634 A JPS6489634 A JP S6489634A
- Authority
- JP
- Japan
- Prior art keywords
- step number
- station warning
- protecting step
- sent
- circuit
- 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)
- Maintenance And Management Of Digital Transmission (AREA)
Abstract
PURPOSE:To prevent erroneous detection and a detecting miss by changing the protecting step number of station warning information detection according to the error rate of a transmitting path. CONSTITUTION:For a digital signal which has a frame pattern and a station warning bit in a frame, the station warning bit is extracted by a station warning bit detecting circuit 2 and the signal is sent to a variable protecting step number circuit 6. On the other hand, a code error is detected in an error detecting circuit 3 and the error rate is calculated by an error counter 4 and sent to a protecting step number determining circuit 5. The protecting step number, which is determined here, is sent to the variable protecting step number circuit 6. In the variable protecting step number circuit 6, the station warning bit is inputted and the protecting step number is changed according to the error rate. Then, the station warning information to obtain protection are sent.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62243542A JPS6489634A (en) | 1987-09-30 | 1987-09-30 | System for detecting station warning information |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62243542A JPS6489634A (en) | 1987-09-30 | 1987-09-30 | System for detecting station warning information |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6489634A true JPS6489634A (en) | 1989-04-04 |
Family
ID=17105426
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62243542A Pending JPS6489634A (en) | 1987-09-30 | 1987-09-30 | System for detecting station warning information |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6489634A (en) |
-
1987
- 1987-09-30 JP JP62243542A patent/JPS6489634A/en active Pending
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