JPS55149583A - Video recording and reproducing unit - Google Patents

Video recording and reproducing unit

Info

Publication number
JPS55149583A
JPS55149583A JP5776779A JP5776779A JPS55149583A JP S55149583 A JPS55149583 A JP S55149583A JP 5776779 A JP5776779 A JP 5776779A JP 5776779 A JP5776779 A JP 5776779A JP S55149583 A JPS55149583 A JP S55149583A
Authority
JP
Japan
Prior art keywords
dropout
signal input
distortion
detector
switch
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
JP5776779A
Other languages
Japanese (ja)
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 JP5776779A priority Critical patent/JPS55149583A/en
Publication of JPS55149583A publication Critical patent/JPS55149583A/en
Pending 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
    • H04N5/94—Signal drop-out compensation

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Signal Processing For Recording (AREA)

Abstract

PURPOSE:To prevent the distortion of picture due to voltage variation, by stopping the operation of the dropout compensation circuit until the tape speed is stable, when change-over is made from the stop mode to the reproduction mode. CONSTITUTION:The delay video signal of the 1H delay circuit 4 is replaced with the output of the dropout detector 6 which detects the dropout of the amplified output of the reproduced FM signal input 1. The switch 10 operated with the after loading signal input 9 is connected to the dropout detector 6. Futher, in case of changing over from the stop to the reproduction mode, the operation of the dropout detection circuit 6 is stopped with the switch 10 until the input of the after loading signal 9 is present. Accordingly, while the tape runs in a constant speed and the FM signal input 1 is present, the distortion of picture due to the operation of the dropout detector 6 can be prevented.
JP5776779A 1979-05-09 1979-05-09 Video recording and reproducing unit Pending JPS55149583A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5776779A JPS55149583A (en) 1979-05-09 1979-05-09 Video recording and reproducing unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5776779A JPS55149583A (en) 1979-05-09 1979-05-09 Video recording and reproducing unit

Publications (1)

Publication Number Publication Date
JPS55149583A true JPS55149583A (en) 1980-11-20

Family

ID=13065018

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5776779A Pending JPS55149583A (en) 1979-05-09 1979-05-09 Video recording and reproducing unit

Country Status (1)

Country Link
JP (1) JPS55149583A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5864604A (en) * 1981-10-15 1983-04-18 Pioneer Video Corp Dropout compensating device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5864604A (en) * 1981-10-15 1983-04-18 Pioneer Video Corp Dropout compensating device

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