JPS5510201A - Separator for color television luminance signal and chromaticity signal - Google Patents

Separator for color television luminance signal and chromaticity signal

Info

Publication number
JPS5510201A
JPS5510201A JP5015878A JP5015878A JPS5510201A JP S5510201 A JPS5510201 A JP S5510201A JP 5015878 A JP5015878 A JP 5015878A JP 5015878 A JP5015878 A JP 5015878A JP S5510201 A JPS5510201 A JP S5510201A
Authority
JP
Japan
Prior art keywords
signal
chromaticity
signals
difference
luminance signal
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
JP5015878A
Other languages
Japanese (ja)
Other versions
JPS5911312B2 (en
Inventor
Muneyuki Okuda
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.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Electric Industry 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 Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Priority to JP5015878A priority Critical patent/JPS5911312B2/en
Publication of JPS5510201A publication Critical patent/JPS5510201A/en
Publication of JPS5911312B2 publication Critical patent/JPS5911312B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Processing Of Color Television Signals (AREA)

Abstract

PURPOSE: To separate completely a chromaticity signal by making use of equality in amplitude and inversion of polarity between chromaticity subcarrier signals of adjacent frames.
CONSTITUTION: Input NTSC composite signals after A/D conversion are wirtten to one-frame memory 7 and then read out in the writing order. In this case, a time difference equivalent to one frame is made between an A/D conversion output and the read-out signal of it. Since stillpicture signals with a one-frame difference in time are equal in amplitude and difference in polarity, the luminance signal and chromaticity signal can be separated by addition and subtraction between both the signals. As for a motion picture, the luminance signal can be separated from the chromaticity signal by extracting still picture components because of a difference with data from one-frame memory 7.
COPYRIGHT: (C)1980,JPO&Japio
JP5015878A 1978-04-28 1978-04-28 Color television luminance signal chromaticity signal separation device Expired JPS5911312B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5015878A JPS5911312B2 (en) 1978-04-28 1978-04-28 Color television luminance signal chromaticity signal separation device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5015878A JPS5911312B2 (en) 1978-04-28 1978-04-28 Color television luminance signal chromaticity signal separation device

Publications (2)

Publication Number Publication Date
JPS5510201A true JPS5510201A (en) 1980-01-24
JPS5911312B2 JPS5911312B2 (en) 1984-03-14

Family

ID=12851376

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5015878A Expired JPS5911312B2 (en) 1978-04-28 1978-04-28 Color television luminance signal chromaticity signal separation device

Country Status (1)

Country Link
JP (1) JPS5911312B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55123280A (en) * 1979-03-16 1980-09-22 Nippon Hoso Kyokai <Nhk> Luminance and chromaticity signal separator
JPS6197287U (en) * 1984-11-30 1986-06-21
JPS6272290A (en) * 1985-09-26 1987-04-02 Nec Home Electronics Ltd Y/c separating device for high definition television
JPH06327024A (en) * 1993-05-12 1994-11-25 Nec Corp Video signal processing circuit
JP2002330447A (en) * 2001-04-27 2002-11-15 Sony Corp Luminance / color signal separation and noise reduction circuit

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55123280A (en) * 1979-03-16 1980-09-22 Nippon Hoso Kyokai <Nhk> Luminance and chromaticity signal separator
JPS6197287U (en) * 1984-11-30 1986-06-21
JPS6272290A (en) * 1985-09-26 1987-04-02 Nec Home Electronics Ltd Y/c separating device for high definition television
JPH06327024A (en) * 1993-05-12 1994-11-25 Nec Corp Video signal processing circuit
JP2002330447A (en) * 2001-04-27 2002-11-15 Sony Corp Luminance / color signal separation and noise reduction circuit

Also Published As

Publication number Publication date
JPS5911312B2 (en) 1984-03-14

Similar Documents

Publication Publication Date Title
JPS5492015A (en) Color television image receiving unit
EP0264965A3 (en) Video difference key generator
JPS5510228A (en) S/n improving unit for television video signal
JPS5242324A (en) Chroma signal processing system
JPS551743A (en) Television receiver
JPS5510201A (en) Separator for color television luminance signal and chromaticity signal
JPS5455324A (en) Color pickup unit
JPS5257717A (en) Tv pickup system
JPS57164687A (en) Double scanning image receiver
JPS5255429A (en) Color solid pickup unit
JPS54139332A (en) Static picture transmission system
JPS5324723A (en) Coding system for ntsc signal between frames
JPS53145521A (en) Receiving picture display system for television still picture communication
JPS54146917A (en) Television signal constituting system
JPS5377417A (en) Pal-ntsc signal converter
JPS5313312A (en) Interframe encoder of color television signal
JPS5294019A (en) Solid pick up unit
JPS55143884A (en) Color two-screen television receiver
JPS5746590A (en) Color video synthesizing device
JPS5646367A (en) Picture processor
JPS5437631A (en) Recording and reproducing sustem for secam system color video signal
JPS52138822A (en) Color picture signal recorder
JPS5310925A (en) Color solid image pickup unit
JPS5437428A (en) Solid state color pickup device
JPS5528642A (en) Reception unit for television multiplex braodcast