JPS6419832A - Narrow band detector - Google Patents

Narrow band detector

Info

Publication number
JPS6419832A
JPS6419832A JP17472387A JP17472387A JPS6419832A JP S6419832 A JPS6419832 A JP S6419832A JP 17472387 A JP17472387 A JP 17472387A JP 17472387 A JP17472387 A JP 17472387A JP S6419832 A JPS6419832 A JP S6419832A
Authority
JP
Japan
Prior art keywords
detecting
detecting part
output
time
time constant
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
Application number
JP17472387A
Other languages
Japanese (ja)
Inventor
Toshiaki Arai
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 JP17472387A priority Critical patent/JPS6419832A/en
Publication of JPS6419832A publication Critical patent/JPS6419832A/en
Pending legal-status Critical Current

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  • Noise Elimination (AREA)

Abstract

PURPOSE:To improve response speed at the time of the input of a sweeping signal without damaging the characteristic of a circuit by providing a differentia tion circuit part and an OFF detecting part for detecting the rapid change of an AGC voltage and detecting an OFF state thereof and deciding an output according to the three outputs of a comparing part, a pulse detecting part and the OFF detecting part. CONSTITUTION:The differentiation circuit part 6 and the OFF detecting part 7 for detecting the change of the AGC voltage are added to input the output of the OFF detecting part 7 to a logic part 5 together with the respective outputs of the comparing part 3 and the pulse detecting part 4. The differentia tion circuit part 6 and the OFF detecting part 7 detect the rapid change of the AGC voltage and output it to the logic part 5. Since the time constant of the differentiation circuit part 6 is set to the time constant of an AGC loop, an abnormal (squelch) output can be rapidly transmitted without being influenced by the time constant tau of the pulse detecting part 4 even at the time of a signal OFF to the time of inputting the sweeping signal.
JP17472387A 1987-07-15 1987-07-15 Narrow band detector Pending JPS6419832A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17472387A JPS6419832A (en) 1987-07-15 1987-07-15 Narrow band detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17472387A JPS6419832A (en) 1987-07-15 1987-07-15 Narrow band detector

Publications (1)

Publication Number Publication Date
JPS6419832A true JPS6419832A (en) 1989-01-23

Family

ID=15983526

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17472387A Pending JPS6419832A (en) 1987-07-15 1987-07-15 Narrow band detector

Country Status (1)

Country Link
JP (1) JPS6419832A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0350254A (en) * 1989-07-17 1991-03-04 Sharp Corp Electrodeposition coating composition
EP2454537B1 (en) 2009-07-16 2016-01-13 Termal SRL Radiation heating apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0350254A (en) * 1989-07-17 1991-03-04 Sharp Corp Electrodeposition coating composition
EP2454537B1 (en) 2009-07-16 2016-01-13 Termal SRL Radiation heating apparatus

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