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JPS5636277A - Video signal recording system - Google Patents

Video signal recording system

Info

Publication number
JPS5636277A
JPS5636277A JP11260379A JP11260379A JPS5636277A JP S5636277 A JPS5636277 A JP S5636277A JP 11260379 A JP11260379 A JP 11260379A JP 11260379 A JP11260379 A JP 11260379A JP S5636277 A JPS5636277 A JP S5636277A
Authority
JP
Japan
Prior art keywords
signal
video signal
frequency
circuit
supplied
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
JP11260379A
Other languages
Japanese (ja)
Other versions
JPS6337998B2 (en
Inventor
Akira Hirota
Yoshiteru Kosaka
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.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan 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 Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Priority to JP11260379A priority Critical patent/JPS5636277A/en
Publication of JPS5636277A publication Critical patent/JPS5636277A/en
Publication of JPS6337998B2 publication Critical patent/JPS6337998B2/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
    • H04N5/92—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback

Landscapes

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

Abstract

PURPOSE:To clarify the reproducing picture of the part where the video signal level changes rapidly, by causing phases in respective horizontal flyback times of the frequency-modulated video signal to agree with one another relatively when the video signal is frequency-modulated and recorded. CONSTITUTION:The luminance signal is separated from the color television signal input from input terminal 10 by low-pass filter 12. This luminance signal has high- band components emphasized by preemphasis circuit 15 and is supplied to frequency modulator 17 after removing undershoot and overshoot by white dark clip circuit 16. The horizontal synchronizing signal is separated from the input color television signal by horizontal synchronizing signal separating circuit 13, and this synchronizing signal is shaped by monostable multivibrator 18 and is supplied to modulator 17 after made into a prescribed-phase pulse by phase control circuit 19, thereby starting oscillation with a prescribed phase in the horizontal flyback time.
JP11260379A 1979-09-03 1979-09-03 Video signal recording system Granted JPS5636277A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11260379A JPS5636277A (en) 1979-09-03 1979-09-03 Video signal recording system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11260379A JPS5636277A (en) 1979-09-03 1979-09-03 Video signal recording system

Publications (2)

Publication Number Publication Date
JPS5636277A true JPS5636277A (en) 1981-04-09
JPS6337998B2 JPS6337998B2 (en) 1988-07-27

Family

ID=14590856

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11260379A Granted JPS5636277A (en) 1979-09-03 1979-09-03 Video signal recording system

Country Status (1)

Country Link
JP (1) JPS5636277A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2610152A1 (en) * 1987-01-27 1988-07-29 Sony Corp FREQUENCY MODULATION CIRCUIT
EP0447210A2 (en) * 1990-03-13 1991-09-18 Sharp Kabushiki Kaisha Carrier reset FM modulator and method of frequency modulating video signals
JPH0420087U (en) * 1990-06-12 1992-02-19

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2610152A1 (en) * 1987-01-27 1988-07-29 Sony Corp FREQUENCY MODULATION CIRCUIT
EP0447210A2 (en) * 1990-03-13 1991-09-18 Sharp Kabushiki Kaisha Carrier reset FM modulator and method of frequency modulating video signals
US5157359A (en) * 1990-03-13 1992-10-20 Sharp Kabushiki Kaisha Carrier reset fm modulator and method of frequency modulating video signals
JPH0420087U (en) * 1990-06-12 1992-02-19

Also Published As

Publication number Publication date
JPS6337998B2 (en) 1988-07-27

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