JPS5731275A - Recorder and reproducer of video signal - Google Patents

Recorder and reproducer of video signal

Info

Publication number
JPS5731275A
JPS5731275A JP10610780A JP10610780A JPS5731275A JP S5731275 A JPS5731275 A JP S5731275A JP 10610780 A JP10610780 A JP 10610780A JP 10610780 A JP10610780 A JP 10610780A JP S5731275 A JPS5731275 A JP S5731275A
Authority
JP
Japan
Prior art keywords
signal
high band
waveform
video signal
emphasizing
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
JP10610780A
Other languages
Japanese (ja)
Inventor
Shigekazu Togashi
Hiroshi Kitaura
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP10610780A priority Critical patent/JPS5731275A/en
Publication of JPS5731275A publication Critical patent/JPS5731275A/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
    • H04N5/92—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
    • H04N5/923—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback using preemphasis of the signal before modulation and deemphasis of the signal after demodulation

Landscapes

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

Abstract

PURPOSE:To obtain a signal having an improve S/N and a reduced distortion, by clipping or compressing the high band component of a video signal higher than a certain level and then pre-emphasizing and de-emphasizing the high band component for recording and reproducing respectively. CONSTITUTION:For a VTR, etc., the video signal of waveform (a) is applied through a terminal 10, and only the high band component higher than a certain level is extracted like a waveform (b) through a high band peak clipping circuit 21. Thus a signal (b) whose components higher than a certain level of + or -E is clipped is obtained. After this, a signal (d) whose high band component is emphasized is obtained through a pre-emphasizing circuit 1 and modulated by an FM modulator 3 to be recorded. This signal is demodulated by an FM demodulator 6 to obtain a waveform (d) during the reproduction. Then a signal of waveform (l) is reproduced through a terminal 11 and via a de-emphasizing circuit 7. In such way, the degree of emphasis is increased while reducing the occurrence of the screen distortion like the smears, streaking, etc. Thus a video signal is reproduced with an improved S/N.
JP10610780A 1980-07-31 1980-07-31 Recorder and reproducer of video signal Pending JPS5731275A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10610780A JPS5731275A (en) 1980-07-31 1980-07-31 Recorder and reproducer of video signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10610780A JPS5731275A (en) 1980-07-31 1980-07-31 Recorder and reproducer of video signal

Publications (1)

Publication Number Publication Date
JPS5731275A true JPS5731275A (en) 1982-02-19

Family

ID=14425256

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10610780A Pending JPS5731275A (en) 1980-07-31 1980-07-31 Recorder and reproducer of video signal

Country Status (1)

Country Link
JP (1) JPS5731275A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6174107A (en) * 1984-09-19 1986-04-16 Victor Co Of Japan Ltd Signal processing circuit
US5490316A (en) * 1993-06-11 1996-02-13 Sumitomo Wiring Systems Ltd (A Corp. Of Japan) Continuous terminal crimping machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6174107A (en) * 1984-09-19 1986-04-16 Victor Co Of Japan Ltd Signal processing circuit
US5490316A (en) * 1993-06-11 1996-02-13 Sumitomo Wiring Systems Ltd (A Corp. Of Japan) Continuous terminal crimping machine

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