JPS5627589A - Color auxiliary modulator - Google Patents

Color auxiliary modulator

Info

Publication number
JPS5627589A
JPS5627589A JP10317379A JP10317379A JPS5627589A JP S5627589 A JPS5627589 A JP S5627589A JP 10317379 A JP10317379 A JP 10317379A JP 10317379 A JP10317379 A JP 10317379A JP S5627589 A JPS5627589 A JP S5627589A
Authority
JP
Japan
Prior art keywords
color
level
output
black
phase
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
JP10317379A
Other languages
Japanese (ja)
Other versions
JPS603261B2 (en
Inventor
Takahiro Yamazaki
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.)
NEC Home Electronics Ltd
NEC Corp
Original Assignee
NEC Home Electronics Ltd
Nippon Electric 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 NEC Home Electronics Ltd, Nippon Electric Co Ltd filed Critical NEC Home Electronics Ltd
Priority to JP10317379A priority Critical patent/JPS603261B2/en
Publication of JPS5627589A publication Critical patent/JPS5627589A/en
Publication of JPS603261B2 publication Critical patent/JPS603261B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N11/00—Colour television systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Processing Of Color Television Signals (AREA)

Abstract

PURPOSE:To make an edge part clear by improving the phase reproducibility of a chrominance signal part at a boundary between a black-and-white part and other- color part by increasing the logical level of a chrominance signal when a color display signal assigning white or black color is supplied. CONSTITUTION:Color data CD1-CD3 are input following color burst flag pulse CBF. When color data CD1-CD3 are all held at level ''L'' or ''H'', symmetric rectangular signal selecting circuit 3 generates an output of level ''L'' and NAND gate 8 sends out an output of level ''H'', causing the output of the 1st mixing circuit 9 to change. As a result, the phase detection range is widened and the phase reproducibility improves.
JP10317379A 1979-08-15 1979-08-15 Color sub-modulator Expired JPS603261B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10317379A JPS603261B2 (en) 1979-08-15 1979-08-15 Color sub-modulator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10317379A JPS603261B2 (en) 1979-08-15 1979-08-15 Color sub-modulator

Publications (2)

Publication Number Publication Date
JPS5627589A true JPS5627589A (en) 1981-03-17
JPS603261B2 JPS603261B2 (en) 1985-01-26

Family

ID=14347107

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10317379A Expired JPS603261B2 (en) 1979-08-15 1979-08-15 Color sub-modulator

Country Status (1)

Country Link
JP (1) JPS603261B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6073865U (en) * 1983-10-28 1985-05-24 ダイハツ工業株式会社 Structure of exhaust gas recirculation passage

Also Published As

Publication number Publication date
JPS603261B2 (en) 1985-01-26

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