JPS6418332A - Timing extraction circuit - Google Patents
Timing extraction circuitInfo
- Publication number
- JPS6418332A JPS6418332A JP62174515A JP17451587A JPS6418332A JP S6418332 A JPS6418332 A JP S6418332A JP 62174515 A JP62174515 A JP 62174515A JP 17451587 A JP17451587 A JP 17451587A JP S6418332 A JPS6418332 A JP S6418332A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- signal
- output
- clock
- terminal
- 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
- 238000000605 extraction Methods 0.000 title 1
- 230000003247 decreasing effect Effects 0.000 abstract 2
- 230000010355 oscillation Effects 0.000 abstract 2
- 238000001514 detection method Methods 0.000 abstract 1
- 230000003252 repetitive effect Effects 0.000 abstract 1
- 230000001360 synchronised effect Effects 0.000 abstract 1
Landscapes
- Synchronisation In Digital Transmission Systems (AREA)
Abstract
PURPOSE:To continue the operation of a signal processing circuit of the post- stage by detecting that the pulse density of an input signal is decreased so as to send an output signal of a built-in oscillation circuit as a clock signal thereby preventing missing of a clock. CONSTITUTION:When a conventional 4B5B coded signal of 125Mb/s is given to an input terminal 1, a stable clock signal of 125MHz is extracted from a tank circuit 4. Then an output of a limiter amplifier 5 is selected by a changeover circuit 10, and a data signal and a clock signal in the synchronized state are sent from a data output terminal 3 and a clock output terminal 15 respectively. When the line is idle, the input signal is a repetitive signal of 2.5MHz. Thus, the circuit 4 cannot extract the clock component and an output voltage of a peak detection circuit 6 is decreased. In setting a reference voltage circuit 8 so as to invert the output of a comaprator circuit 7, the circuit 10 sends an output signal of an oscillation circuit 9 to the terminal 15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62174515A JPS6418332A (en) | 1987-07-13 | 1987-07-13 | Timing extraction circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62174515A JPS6418332A (en) | 1987-07-13 | 1987-07-13 | Timing extraction circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6418332A true JPS6418332A (en) | 1989-01-23 |
| JPH0585095B2 JPH0585095B2 (en) | 1993-12-06 |
Family
ID=15979861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62174515A Granted JPS6418332A (en) | 1987-07-13 | 1987-07-13 | Timing extraction circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6418332A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5074113A (en) * | 1989-06-23 | 1991-12-24 | Toyota Jidosha Kabushiki Kaisha | Air-fuel ratio control device of an internal combustion engine |
| US5207057A (en) * | 1991-05-16 | 1993-05-04 | Toyota Jidosha Kabushiki Kaisha | Air-fuel ratio control device for an engine |
| JP2006155598A (en) * | 2004-10-29 | 2006-06-15 | Hitachi Omron Terminal Solutions Corp | Display input system, display control method, and display control program |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61161054A (en) * | 1985-01-09 | 1986-07-21 | Nec Corp | Receiving signal off detecting circuit |
| JPS61216541A (en) * | 1985-03-22 | 1986-09-26 | Hitachi Ltd | Data transmitting device |
-
1987
- 1987-07-13 JP JP62174515A patent/JPS6418332A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61161054A (en) * | 1985-01-09 | 1986-07-21 | Nec Corp | Receiving signal off detecting circuit |
| JPS61216541A (en) * | 1985-03-22 | 1986-09-26 | Hitachi Ltd | Data transmitting device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5074113A (en) * | 1989-06-23 | 1991-12-24 | Toyota Jidosha Kabushiki Kaisha | Air-fuel ratio control device of an internal combustion engine |
| US5207057A (en) * | 1991-05-16 | 1993-05-04 | Toyota Jidosha Kabushiki Kaisha | Air-fuel ratio control device for an engine |
| JP2006155598A (en) * | 2004-10-29 | 2006-06-15 | Hitachi Omron Terminal Solutions Corp | Display input system, display control method, and display control program |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0585095B2 (en) | 1993-12-06 |
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