JPS55159683A - Detector for frequency characteristic for transmission line - Google Patents

Detector for frequency characteristic for transmission line

Info

Publication number
JPS55159683A
JPS55159683A JP6819979A JP6819979A JPS55159683A JP S55159683 A JPS55159683 A JP S55159683A JP 6819979 A JP6819979 A JP 6819979A JP 6819979 A JP6819979 A JP 6819979A JP S55159683 A JPS55159683 A JP S55159683A
Authority
JP
Japan
Prior art keywords
circuit
fed
signal
output
difference
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
JP6819979A
Other languages
Japanese (ja)
Other versions
JPS6128269B2 (en
Inventor
Tadaaki Yoshinaka
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP6819979A priority Critical patent/JPS55159683A/en
Publication of JPS55159683A publication Critical patent/JPS55159683A/en
Publication of JPS6128269B2 publication Critical patent/JPS6128269B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/93—Regeneration of the television signal or of selected parts thereof
    • H04N5/95—Time-base error compensation

Abstract

PURPOSE:To obtain the frequency characteristic detector for transmission lines, having conventionality, by detecting the detection voltage corresponding to the slope of a horizontal synchronizing signal included in a video signal after detection and improving the electric characteristics of transmission system based on it. CONSTITUTION:The reproduced video signal from an input terminal 1 is fed to a pedestal clamp circuit 3 via a variable LPF circuit and this output is fed to a window comparator 4. To this comparator 4, the divided voltage picked up among a plurality of voltage dividing resistors 7-9 connected between standard power supply terminals 5 and 6 is applied, to form the pulse signal corresponding to the slope of the output from the clamp circuit 3. Next, this signal is fed to a switch circuit 12 via a monostable mutivibrator 10, AND gate 11, and integration is made at the integration circuit 14 and 15, and the difference is detected at a difference detection circuit 16. After that, this difference level is fed to a switch circuit 17 and it is fed back to a circuit 2 via an adder 18 connected to a DC power supply 19 and this output is synchronized with the signal from an input terminal 13.
JP6819979A 1979-05-31 1979-05-31 Detector for frequency characteristic for transmission line Granted JPS55159683A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6819979A JPS55159683A (en) 1979-05-31 1979-05-31 Detector for frequency characteristic for transmission line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6819979A JPS55159683A (en) 1979-05-31 1979-05-31 Detector for frequency characteristic for transmission line

Publications (2)

Publication Number Publication Date
JPS55159683A true JPS55159683A (en) 1980-12-11
JPS6128269B2 JPS6128269B2 (en) 1986-06-30

Family

ID=13366880

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6819979A Granted JPS55159683A (en) 1979-05-31 1979-05-31 Detector for frequency characteristic for transmission line

Country Status (1)

Country Link
JP (1) JPS55159683A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0454699Y2 (en) * 1988-05-25 1992-12-22
CN111670406A (en) 2018-01-30 2020-09-15 大日本印刷株式会社 Liquid crystal dimming device and manufacturing method thereof

Also Published As

Publication number Publication date
JPS6128269B2 (en) 1986-06-30

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