JPS6460120A - Instrument for measuring code error rate - Google Patents
Instrument for measuring code error rateInfo
- Publication number
- JPS6460120A JPS6460120A JP21669987A JP21669987A JPS6460120A JP S6460120 A JPS6460120 A JP S6460120A JP 21669987 A JP21669987 A JP 21669987A JP 21669987 A JP21669987 A JP 21669987A JP S6460120 A JPS6460120 A JP S6460120A
- Authority
- JP
- Japan
- Prior art keywords
- pattern
- mark rate
- rate
- reception
- signal
- 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.)
- Granted
Links
Landscapes
- Detection And Prevention Of Errors In Transmission (AREA)
Abstract
PURPOSE:To measure an error rate under severer condition to fluctuate a mark rate and to widely shorten a pull in time by sending a test pattern signal to have the arbitrary mark rate to a measured system, receiving the signal and adopting a mark rate recovering circuit in a receiving side. CONSTITUTION:A 1/2<m> mark rate pattern is sent from a transmission part 21 to a measured system 22 as a test signal. On the other hand, in a reception part 23, the mark rate pattern is made from a reception signal through the measured system 22 and an M system false random pattern is synchronizing- reproduced of a (2N<-1>) bit in a synchronizing circuit 29. The 1/2<m> mark rate pattern is generated in a receiving side 1/2<m> mark rate pattern generating circuit 34 and compared with a reception pattern in an error detecting circuit 37 and an error in reception pattern is detected. Thus, the mark rate is fluctuated and the error rate can be measured under the severer condition. Then, the pull in time is shortened.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21669987A JP2512004B2 (en) | 1987-08-31 | 1987-08-31 | Bit error rate measuring device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21669987A JP2512004B2 (en) | 1987-08-31 | 1987-08-31 | Bit error rate measuring device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6460120A true JPS6460120A (en) | 1989-03-07 |
JP2512004B2 JP2512004B2 (en) | 1996-07-03 |
Family
ID=16692535
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP21669987A Expired - Lifetime JP2512004B2 (en) | 1987-08-31 | 1987-08-31 | Bit error rate measuring device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2512004B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0813251A (en) * | 1994-07-04 | 1996-01-16 | Agency Of Ind Science & Technol | Production of alginic acid-based filament |
JPH0813252A (en) * | 1994-06-29 | 1996-01-16 | Agency Of Ind Science & Technol | Alginic acid-based fiber, its production and product therefrom |
JP2008070112A (en) * | 2001-07-19 | 2008-03-27 | Mitsubishi Electric Corp | Air conditioner |
-
1987
- 1987-08-31 JP JP21669987A patent/JP2512004B2/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0813252A (en) * | 1994-06-29 | 1996-01-16 | Agency Of Ind Science & Technol | Alginic acid-based fiber, its production and product therefrom |
JPH0813251A (en) * | 1994-07-04 | 1996-01-16 | Agency Of Ind Science & Technol | Production of alginic acid-based filament |
JP2008070112A (en) * | 2001-07-19 | 2008-03-27 | Mitsubishi Electric Corp | Air conditioner |
Also Published As
Publication number | Publication date |
---|---|
JP2512004B2 (en) | 1996-07-03 |
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Legal Events
Date | Code | Title | Description |
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R250 | Receipt of annual fees |
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S531 | Written request for registration of change of domicile |
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R250 | Receipt of annual fees |
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EXPY | Cancellation because of completion of term | ||
FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 12 Free format text: PAYMENT UNTIL: 20080416 |