JPS6471288A - Luminance signal and chrominance signal separation filter corresponding to picture correlation - Google Patents

Luminance signal and chrominance signal separation filter corresponding to picture correlation

Info

Publication number
JPS6471288A
JPS6471288A JP22882087A JP22882087A JPS6471288A JP S6471288 A JPS6471288 A JP S6471288A JP 22882087 A JP22882087 A JP 22882087A JP 22882087 A JP22882087 A JP 22882087A JP S6471288 A JPS6471288 A JP S6471288A
Authority
JP
Japan
Prior art keywords
signal
chrominance signal
given
chrominance
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.)
Pending
Application number
JP22882087A
Other languages
Japanese (ja)
Inventor
Reiko Tamura
Hiroshi Ito
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP22882087A priority Critical patent/JPS6471288A/en
Publication of JPS6471288A publication Critical patent/JPS6471288A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To reduce the effect of leakage of a mutual channel of a luminance signal and a chrominance signal by using a luminance signal/chrominance signal filter depending on the correlation of a picture in the vertical aud horizontal direction of a composite color television signal. CONSTITUTION:A composite color television signal is sampled by an A/D converter 4. The A/D converter 4 and the output of one-line delay circuits 5a, 5b are given to a vertical chrominance signal extraction filter 6a, a horizontal chrominance signal extraction filter 6b and a horizontal/vertical chrominance signal extraction filter 6c. Outputs of the filters 6a-6c are given to a switch circuit 8 via compensation delay circuits 5c-5e. An output of the picture correlation discrimination circuit 7 is given to the switch circuit 8 as a control signal. The output of the switch circuit 8 is outputted from the terminal 2 as the chrominance signal and given to a subtractor circuit 9a. A luminance signal is outputted from the subtraction circuit 9a.
JP22882087A 1987-09-10 1987-09-10 Luminance signal and chrominance signal separation filter corresponding to picture correlation Pending JPS6471288A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22882087A JPS6471288A (en) 1987-09-10 1987-09-10 Luminance signal and chrominance signal separation filter corresponding to picture correlation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22882087A JPS6471288A (en) 1987-09-10 1987-09-10 Luminance signal and chrominance signal separation filter corresponding to picture correlation

Publications (1)

Publication Number Publication Date
JPS6471288A true JPS6471288A (en) 1989-03-16

Family

ID=16882373

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22882087A Pending JPS6471288A (en) 1987-09-10 1987-09-10 Luminance signal and chrominance signal separation filter corresponding to picture correlation

Country Status (1)

Country Link
JP (1) JPS6471288A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5491522A (en) * 1993-06-11 1996-02-13 Goldstar Co., Ltd. Luminance and color signal isolation device
US5508753A (en) * 1994-04-21 1996-04-16 Matsushita Electric Industrial Co., Ltd. Luminance and chrominance signal separating apparatus
US5654768A (en) * 1995-03-27 1997-08-05 Matsushita Electric Industrial Co., Ltd. Pal-system adaptive color-signal demodulator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5491522A (en) * 1993-06-11 1996-02-13 Goldstar Co., Ltd. Luminance and color signal isolation device
US5508753A (en) * 1994-04-21 1996-04-16 Matsushita Electric Industrial Co., Ltd. Luminance and chrominance signal separating apparatus
US5654768A (en) * 1995-03-27 1997-08-05 Matsushita Electric Industrial Co., Ltd. Pal-system adaptive color-signal demodulator

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