JPS5797787A - Picture reproducing device - Google Patents

Picture reproducing device

Info

Publication number
JPS5797787A
JPS5797787A JP55176038A JP17603880A JPS5797787A JP S5797787 A JPS5797787 A JP S5797787A JP 55176038 A JP55176038 A JP 55176038A JP 17603880 A JP17603880 A JP 17603880A JP S5797787 A JPS5797787 A JP S5797787A
Authority
JP
Japan
Prior art keywords
circuit
video signal
noise components
output
high band
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
JP55176038A
Other languages
Japanese (ja)
Other versions
JPS6347030B2 (en
Inventor
Kenichi Hirata
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP55176038A priority Critical patent/JPS5797787A/en
Publication of JPS5797787A publication Critical patent/JPS5797787A/en
Publication of JPS6347030B2 publication Critical patent/JPS6347030B2/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Picture Signal Circuits (AREA)
  • Television Signal Processing For Recording (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)

Abstract

PURPOSE:To improve the SN ratio considerably, by delaying the demodulated video signal through an HPF to extract noise components and by extracting noise components included in the video signal through a subtracting circuit. CONSTITUTION:In respect to a video signal input, the empasized high band is reduced by a de-emphasis circuit 12, and a 1H-delayed high band part is subtracted from the output of an HPF13 by a subtracting circuit 15, and high band components of the picture are cancelled, and noise components of the video signal are amplified by an amplifying circuit 16 and are given to a sbtracting circuit 17. The output of the circuit 16 is subtracted from the output of the circuit 12 by the circuit 17. In this case, since noise components included in the circuit 12 are aliminated, the video signal which does not include noise is supplied to a video amplifying circuit 18.
JP55176038A 1980-12-10 1980-12-10 Picture reproducing device Granted JPS5797787A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55176038A JPS5797787A (en) 1980-12-10 1980-12-10 Picture reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55176038A JPS5797787A (en) 1980-12-10 1980-12-10 Picture reproducing device

Publications (2)

Publication Number Publication Date
JPS5797787A true JPS5797787A (en) 1982-06-17
JPS6347030B2 JPS6347030B2 (en) 1988-09-20

Family

ID=16006628

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55176038A Granted JPS5797787A (en) 1980-12-10 1980-12-10 Picture reproducing device

Country Status (1)

Country Link
JP (1) JPS5797787A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61150163A (en) * 1984-12-24 1986-07-08 Matsushita Electric Ind Co Ltd Noise rejecting device
US9847433B2 (en) 2014-05-30 2017-12-19 Interchip Corporation Integrated MOS varicap, and voltage controlled oscillator and filter having same

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH026118U (en) * 1988-06-28 1990-01-16
JPH0475611U (en) * 1990-11-14 1992-07-02

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5545270A (en) * 1978-09-26 1980-03-29 Sanyo Electric Co Ltd Beat removal system of video player

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5545270A (en) * 1978-09-26 1980-03-29 Sanyo Electric Co Ltd Beat removal system of video player

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61150163A (en) * 1984-12-24 1986-07-08 Matsushita Electric Ind Co Ltd Noise rejecting device
US9847433B2 (en) 2014-05-30 2017-12-19 Interchip Corporation Integrated MOS varicap, and voltage controlled oscillator and filter having same

Also Published As

Publication number Publication date
JPS6347030B2 (en) 1988-09-20

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