JPS6418332A - Timing extraction circuit - Google Patents

Timing extraction circuit

Info

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
Application number
JP62174515A
Other languages
Japanese (ja)
Other versions
JPH0585095B2 (en
Inventor
Yoshihiro Uda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NEC Corp filed Critical NEC Corp
Priority to JP62174515A priority Critical patent/JPS6418332A/en
Publication of JPS6418332A publication Critical patent/JPS6418332A/en
Publication of JPH0585095B2 publication Critical patent/JPH0585095B2/ja
Granted legal-status Critical Current

Links

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.
JP62174515A 1987-07-13 1987-07-13 Timing extraction circuit Granted JPS6418332A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (2)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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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