JPS54140828A - Luminance-color separation system - Google Patents

Luminance-color separation system

Info

Publication number
JPS54140828A
JPS54140828A JP4896778A JP4896778A JPS54140828A JP S54140828 A JPS54140828 A JP S54140828A JP 4896778 A JP4896778 A JP 4896778A JP 4896778 A JP4896778 A JP 4896778A JP S54140828 A JPS54140828 A JP S54140828A
Authority
JP
Japan
Prior art keywords
signal
input
luminance
supplied
motion
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
JP4896778A
Other languages
Japanese (ja)
Other versions
JPS6115635B2 (en
Inventor
Takashi Fujio
Norio Motoki
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.)
Japan Broadcasting Corp
Original Assignee
Nippon Hoso Kyokai NHK
Japan Broadcasting Corp
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 Nippon Hoso Kyokai NHK, Japan Broadcasting Corp filed Critical Nippon Hoso Kyokai NHK
Priority to JP4896778A priority Critical patent/JPS54140828A/en
Publication of JPS54140828A publication Critical patent/JPS54140828A/en
Publication of JPS6115635B2 publication Critical patent/JPS6115635B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To attain the luminance-color separation of a composite color television signal while maintaining high picture quality without losing original picture information.
CONSTITUTION: A composite color television signal from input terminal 1 and a signal delayed by one frame period by frame memory 1 are both led to subtractor 2 to form a difference signal between the input and output signals of frame memory 1, so that the difference signal will be zero at the still-picture part and negative or positive in polarity at the motion-picture part. this difference signal is supplied to decision circuit 3, which extracts a motion decision signal. Adder 5 and subtracter 6, on the other hand, generate a sum signal and a differenc signal between the input and output composite color television signals of frame memory 1. Further, the signal from terminal 1 is supplied to delay line 4, whose input and output signals are supplied to adder 8 and subtracter 9, so that a sum signal and a difference signal between two scanning lines adjoining each other in the same field will be extracted as the luminance signal and carrier of the motion-picture part.
COPYRIGHT: (C)1979,JPO&Japio
JP4896778A 1978-04-24 1978-04-24 Luminance-color separation system Granted JPS54140828A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4896778A JPS54140828A (en) 1978-04-24 1978-04-24 Luminance-color separation system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4896778A JPS54140828A (en) 1978-04-24 1978-04-24 Luminance-color separation system

Publications (2)

Publication Number Publication Date
JPS54140828A true JPS54140828A (en) 1979-11-01
JPS6115635B2 JPS6115635B2 (en) 1986-04-25

Family

ID=12818040

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4896778A Granted JPS54140828A (en) 1978-04-24 1978-04-24 Luminance-color separation system

Country Status (1)

Country Link
JP (1) JPS54140828A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5746590A (en) * 1980-09-03 1982-03-17 Shin Meiwa Ind Co Ltd Color video synthesizing device
JPS58129892A (en) * 1983-01-28 1983-08-03 Hitachi Ltd Color signal separation circuit
JPS58179081A (en) * 1982-04-14 1983-10-20 Hitachi Ltd Extracting circuit of varied area
JPS59110296A (en) * 1982-11-26 1984-06-26 アールシーエー　ライセンシング　コーポレーシヨン Comb type filtering method for television signal and comb type filter
JPS59198100A (en) * 1983-04-05 1984-11-09 テクトロニツクス・インコーポレイテツド Color and intensity separating and treating device
JPS61251289A (en) * 1985-04-29 1986-11-08 インタ−ナショナル　ビジネス　マシ−ンズ　コ−ポレ−ション Ntsc color video signal decomposer
JPS6242680A (en) * 1985-06-11 1987-02-24 トムソン・グラン・ピユブリツク Method and apparatus for separating brightness signal and color difference signal of pal or secam type compound video signal
JPS62125792A (en) * 1985-11-26 1987-06-08 Nec Home Electronics Ltd Comb-line filter for y/c separation
US4853765A (en) * 1987-04-30 1989-08-01 Hitachi, Ltd. Sequential scanning converter with frame comb filter and freeze frame feature
US4893176A (en) * 1985-10-09 1990-01-09 Faroudja Y C Adaptive comb filter for quadrature modulated color television systems
US5249037A (en) * 1988-06-03 1993-09-28 Hitachi, Ltd. Image signal correction circuit and image signal processor using the circuit

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4873020A (en) * 1971-12-20 1973-10-02
JPS4973018A (en) * 1972-11-13 1974-07-15
JPS5284915A (en) * 1976-01-07 1977-07-14 Hitachi Ltd Color picture encoding method
JPS533315A (en) * 1976-06-30 1978-01-13 Kawai Musical Instr Mfg Co Automatic playing device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4873020A (en) * 1971-12-20 1973-10-02
JPS4973018A (en) * 1972-11-13 1974-07-15
JPS5284915A (en) * 1976-01-07 1977-07-14 Hitachi Ltd Color picture encoding method
JPS533315A (en) * 1976-06-30 1978-01-13 Kawai Musical Instr Mfg Co Automatic playing device

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5746590A (en) * 1980-09-03 1982-03-17 Shin Meiwa Ind Co Ltd Color video synthesizing device
JPS58179081A (en) * 1982-04-14 1983-10-20 Hitachi Ltd Extracting circuit of varied area
JPH0348714B2 (en) * 1982-04-14 1991-07-25 Hitachi Ltd
JPH0228952B2 (en) * 1982-11-26 1990-06-27 Rca Licensing Corp
JPS59110296A (en) * 1982-11-26 1984-06-26 アールシーエー　ライセンシング　コーポレーシヨン Comb type filtering method for television signal and comb type filter
JPS58129892A (en) * 1983-01-28 1983-08-03 Hitachi Ltd Color signal separation circuit
JPS6249798B2 (en) * 1983-01-28 1987-10-21 Hitachi Seisakusho Kk
JPS59198100A (en) * 1983-04-05 1984-11-09 テクトロニツクス・インコーポレイテツド Color and intensity separating and treating device
JPS61251289A (en) * 1985-04-29 1986-11-08 インタ−ナショナル　ビジネス　マシ−ンズ　コ−ポレ−ション Ntsc color video signal decomposer
JPH0353837B2 (en) * 1985-04-29 1991-08-16
JPS6242680A (en) * 1985-06-11 1987-02-24 トムソン・グラン・ピユブリツク Method and apparatus for separating brightness signal and color difference signal of pal or secam type compound video signal
US4893176A (en) * 1985-10-09 1990-01-09 Faroudja Y C Adaptive comb filter for quadrature modulated color television systems
JPS62125792A (en) * 1985-11-26 1987-06-08 Nec Home Electronics Ltd Comb-line filter for y/c separation
US4853765A (en) * 1987-04-30 1989-08-01 Hitachi, Ltd. Sequential scanning converter with frame comb filter and freeze frame feature
US5249037A (en) * 1988-06-03 1993-09-28 Hitachi, Ltd. Image signal correction circuit and image signal processor using the circuit

Also Published As

Publication number Publication date
JPS6115635B2 (en) 1986-04-25

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