JPS55163994A - Color signal processor of picture recording and reproducing device - Google Patents

Color signal processor of picture recording and reproducing device

Info

Publication number
JPS55163994A
JPS55163994A JP7117079A JP7117079A JPS55163994A JP S55163994 A JPS55163994 A JP S55163994A JP 7117079 A JP7117079 A JP 7117079A JP 7117079 A JP7117079 A JP 7117079A JP S55163994 A JPS55163994 A JP S55163994A
Authority
JP
Japan
Prior art keywords
phase
oscillates
output
circuit
dividing
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
JP7117079A
Other languages
Japanese (ja)
Inventor
Himio Nakagawa
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 JP7117079A priority Critical patent/JPS55163994A/en
Publication of JPS55163994A publication Critical patent/JPS55163994A/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 improve color reproducibility by generating eight 45 deg.-out-of-phase signals by dividing, by providing VCO which oscillates at a frequency of 320fH (fH: horizontal frequency). CONSTITUTION:In recording, crystal VCO22 oscillates at fSC since its output is phase-compared to a burst signal by PD (phase comparing circuit) 23, and it is used for killer detection and also input to converter 19. On the other hand, 320fH VCO31 oscillates with accuracy since PLL is formed of 1/8-dividing circuit 32, 1/40- dividing circuit 17 and PD14. From this dividing circuit 32, 45 deg.-out-of-phase signals of 40fH are supplied to eight-phase logic circuit 33. In reproduction, VCO22 is made to run freely and the output of a phase comparison of its output to the burst signal is used to control VCO31. Thus, no color reproduction error happens due to the contents of a luminance signal, and consequently the color reproducibility can be improved.
JP7117079A 1979-06-08 1979-06-08 Color signal processor of picture recording and reproducing device Pending JPS55163994A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7117079A JPS55163994A (en) 1979-06-08 1979-06-08 Color signal processor of picture recording and reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7117079A JPS55163994A (en) 1979-06-08 1979-06-08 Color signal processor of picture recording and reproducing device

Publications (1)

Publication Number Publication Date
JPS55163994A true JPS55163994A (en) 1980-12-20

Family

ID=13452906

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7117079A Pending JPS55163994A (en) 1979-06-08 1979-06-08 Color signal processor of picture recording and reproducing device

Country Status (1)

Country Link
JP (1) JPS55163994A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100475029B1 (en) * 1998-01-06 2005-07-18 삼성전자주식회사 Automatic correction device for delay characteristics during recording / playback of video signals

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100475029B1 (en) * 1998-01-06 2005-07-18 삼성전자주식회사 Automatic correction device for delay characteristics during recording / playback of video signals

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