JPS5656084A - Video signal converter - Google Patents

Video signal converter

Info

Publication number
JPS5656084A
JPS5656084A JP13081179A JP13081179A JPS5656084A JP S5656084 A JPS5656084 A JP S5656084A JP 13081179 A JP13081179 A JP 13081179A JP 13081179 A JP13081179 A JP 13081179A JP S5656084 A JPS5656084 A JP S5656084A
Authority
JP
Japan
Prior art keywords
signal
delay line
adder
supplied
terminal
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
JP13081179A
Other languages
Japanese (ja)
Inventor
Toru Fujishima
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP13081179A priority Critical patent/JPS5656084A/en
Publication of JPS5656084A publication Critical patent/JPS5656084A/en
Pending 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
    • H04N9/80—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)

Abstract

PURPOSE:To obtain sufficient performance even when a 1H delay line of narrow band width is used and to prevent deterioration in resolution accompanying with it, by providing a comb line filter, for separating a color signal, independently to the 1H delay line for luminance signal separation. CONSTITUTION:An input signal from terminal 1 is suppled to AM modulator 3, whose modulated signal has a standard frequency color signal separated and extracted through comb line filter 19 and this signal is supplied to adder 15 via BPF6. Further, the modulated signal from modulator 3 is supplied to 1H delay line 20 as well and a dropout compensating signal is supplied to terminal 10 via envelope detector 7, LPF8 and delay line 9. Furthermore, the signal separated from the output of LPF8 via BPF21 is supplied to adder 12 and has a low frequency conversion color signal removed through the comb line filter composed of 1H delay line 20, delay line 11 and adder 12, so that a luminance signal will appear at the output of adder 12. This signal is added 15 via frequency correcting circuit 22 and delay line 13, so that a TV signal including the standard frequency color signal appears at terminal 16.
JP13081179A 1979-10-12 1979-10-12 Video signal converter Pending JPS5656084A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13081179A JPS5656084A (en) 1979-10-12 1979-10-12 Video signal converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13081179A JPS5656084A (en) 1979-10-12 1979-10-12 Video signal converter

Publications (1)

Publication Number Publication Date
JPS5656084A true JPS5656084A (en) 1981-05-16

Family

ID=15043254

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13081179A Pending JPS5656084A (en) 1979-10-12 1979-10-12 Video signal converter

Country Status (1)

Country Link
JP (1) JPS5656084A (en)

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