JPS6481540A - Reception signal switching device - Google Patents
Reception signal switching deviceInfo
- Publication number
- JPS6481540A JPS6481540A JP23741387A JP23741387A JPS6481540A JP S6481540 A JPS6481540 A JP S6481540A JP 23741387 A JP23741387 A JP 23741387A JP 23741387 A JP23741387 A JP 23741387A JP S6481540 A JPS6481540 A JP S6481540A
- Authority
- JP
- Japan
- Prior art keywords
- output
- circuit
- delay
- signal
- outputted
- 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 prevent an abnormality from being supplied to an output terminal by switching a bit combiner circuit receiving two signals via a delay circuit by an output of a signal interruption detection circuit receiving the signal not through the delay circuit. CONSTITUTION:Input data D1, D3 are given respectively to signal interruption detecting circuits 1, 2 and also to data delay circuits 3, 4. Outputs D2, D4 of the delay circuits 3, 4 are supplied to the bit combiner circuit 6 and either or them is outputted as an output D5 by an output C3 of a switching control circuit 5. When the output D2 is outputted and the detection circuit 1 detects the signal interruption of the signal D1, the control circuit 5 outputs the output D4 from the output terminal C3. Since the delay time of the delay circuits 3, 4 is set larger than the time required the detection of the detecting circuits 1, 2, no error signal is outputted at the switching.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23741387A JPS6481540A (en) | 1987-09-24 | 1987-09-24 | Reception signal switching device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23741387A JPS6481540A (en) | 1987-09-24 | 1987-09-24 | Reception signal switching device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6481540A true JPS6481540A (en) | 1989-03-27 |
Family
ID=17015000
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP23741387A Pending JPS6481540A (en) | 1987-09-24 | 1987-09-24 | Reception signal switching device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6481540A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006180144A (en) * | 2004-12-22 | 2006-07-06 | Nec Corp | Line-switching device and line-switching method |
JP2012248923A (en) * | 2011-05-25 | 2012-12-13 | Ntt Communications Kk | Video switching device and video switching method |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62109441A (en) * | 1985-11-07 | 1987-05-20 | Nec Corp | Data transmission system |
-
1987
- 1987-09-24 JP JP23741387A patent/JPS6481540A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62109441A (en) * | 1985-11-07 | 1987-05-20 | Nec Corp | Data transmission system |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006180144A (en) * | 2004-12-22 | 2006-07-06 | Nec Corp | Line-switching device and line-switching method |
JP2012248923A (en) * | 2011-05-25 | 2012-12-13 | Ntt Communications Kk | Video switching device and video switching method |
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