JPS5614793A - Magnetic recording and reproducing device for color television signal - Google Patents

Magnetic recording and reproducing device for color television signal

Info

Publication number
JPS5614793A
JPS5614793A JP9076779A JP9076779A JPS5614793A JP S5614793 A JPS5614793 A JP S5614793A JP 9076779 A JP9076779 A JP 9076779A JP 9076779 A JP9076779 A JP 9076779A JP S5614793 A JPS5614793 A JP S5614793A
Authority
JP
Japan
Prior art keywords
cross modulation
signal
modulation component
magnetic recording
luminance
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
JP9076779A
Other languages
Japanese (ja)
Other versions
JPH0121677B2 (en
Inventor
Katsuhiko Yamamoto
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 JP9076779A priority Critical patent/JPS5614793A/en
Publication of JPS5614793A publication Critical patent/JPS5614793A/en
Publication of JPH0121677B2 publication Critical patent/JPH0121677B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/79—Processing of colour television signals in connection with recording
    • H04N9/87—Regeneration of colour television signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)

Abstract

PURPOSE:To improve the quality of a reproduced picture by reducing a cross modulation component, which causes troubles when a color signal and luminance singal are both FM-modulated and frequency multiplexed for magnetic recording, by providing the method of canceling the amount of cross modulation. CONSTITUTION:A luminance signal and color signal are FM-modulated by modulators 1 and 2 respectively and the sum signal of outputs of modulators 1 and 2 obtained by adder 3 is amplified before being recorded through a head. A reproduced signal is led out of a head. This signal includes a cross modulation component based upon the tertiary distortion of the tape head system. This reproduced signal is passed through limiter 5 to obtain the cross modulation component from limiter 5. This is passed through band-pass filter 6 to extract only the cross modulation component. Since the output of BPF6 includes the side band component of an FM luminance signal, slicer 7 extracts only the cross modulation component. Then, the cross modulation component of delay line 8 and that from slicer 7 are removed by subtracting.
JP9076779A 1979-07-16 1979-07-16 Magnetic recording and reproducing device for color television signal Granted JPS5614793A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9076779A JPS5614793A (en) 1979-07-16 1979-07-16 Magnetic recording and reproducing device for color television signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9076779A JPS5614793A (en) 1979-07-16 1979-07-16 Magnetic recording and reproducing device for color television signal

Publications (2)

Publication Number Publication Date
JPS5614793A true JPS5614793A (en) 1981-02-13
JPH0121677B2 JPH0121677B2 (en) 1989-04-21

Family

ID=14007751

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9076779A Granted JPS5614793A (en) 1979-07-16 1979-07-16 Magnetic recording and reproducing device for color television signal

Country Status (1)

Country Link
JP (1) JPS5614793A (en)

Also Published As

Publication number Publication date
JPH0121677B2 (en) 1989-04-21

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