JPS648793A - Luminance signal chrominance signal separation filter corresponding to picture correlation - Google Patents

Luminance signal chrominance signal separation filter corresponding to picture correlation

Info

Publication number
JPS648793A
JPS648793A JP16441687A JP16441687A JPS648793A JP S648793 A JPS648793 A JP S648793A JP 16441687 A JP16441687 A JP 16441687A JP 16441687 A JP16441687 A JP 16441687A JP S648793 A JPS648793 A JP S648793A
Authority
JP
Japan
Prior art keywords
sampling
signal
noticed
given
extraction filter
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
JP16441687A
Other languages
Japanese (ja)
Inventor
Hitoshi Seto
Tadashi Kasezawa
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 JP16441687A priority Critical patent/JPS648793A/en
Publication of JPS648793A publication Critical patent/JPS648793A/en
Pending legal-status Critical Current

Links

Landscapes

  • Processing Of Color Television Signals (AREA)

Abstract

PURPOSE:To reduce dot disturbance by using a delay means so as to retard a composite video signal thereby obtaining a sampling value of plural noticed sampling points at the same time. CONSTITUTION:A decoded color TV signal of the NTSC system from a terminal 1 is given to an A/D converter 4, which samples a TV signal by a sampling frequency. The sampled TV signal is given to a one line delay circuit 5a and the sampling in a noticed sampling point and the sampled value at the sampling point of the picture of the noticed sampling point by one line higher and lower are extracted simultaneously through a one line delay circuit 5b. The sampled value extracted from the circuits 5a, 5b is given to a vertical direction color signal extraction filter 6a, a horizontal direction color signal extraction filter 6b, a horizontal/vertical direction color signal extraction filter 6c and a picture correlation discrimination circuit 7 to reduce the dot disturbance.
JP16441687A 1987-07-01 1987-07-01 Luminance signal chrominance signal separation filter corresponding to picture correlation Pending JPS648793A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16441687A JPS648793A (en) 1987-07-01 1987-07-01 Luminance signal chrominance signal separation filter corresponding to picture correlation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16441687A JPS648793A (en) 1987-07-01 1987-07-01 Luminance signal chrominance signal separation filter corresponding to picture correlation

Publications (1)

Publication Number Publication Date
JPS648793A true JPS648793A (en) 1989-01-12

Family

ID=15792732

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16441687A Pending JPS648793A (en) 1987-07-01 1987-07-01 Luminance signal chrominance signal separation filter corresponding to picture correlation

Country Status (1)

Country Link
JP (1) JPS648793A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0583732A (en) * 1990-06-09 1993-04-02 Samsung Electron Co Ltd Luminance and color-signal separating circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0583732A (en) * 1990-06-09 1993-04-02 Samsung Electron Co Ltd Luminance and color-signal separating circuit

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