JPS57119582A - Comb-shape filter - Google Patents

Comb-shape filter

Info

Publication number
JPS57119582A
JPS57119582A JP675481A JP675481A JPS57119582A JP S57119582 A JPS57119582 A JP S57119582A JP 675481 A JP675481 A JP 675481A JP 675481 A JP675481 A JP 675481A JP S57119582 A JPS57119582 A JP S57119582A
Authority
JP
Japan
Prior art keywords
line
correlation
output
color
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
JP675481A
Other languages
Japanese (ja)
Other versions
JPS637714B2 (en
Inventor
Kunio Kume
Kiyoshi Morioka
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.)
Pioneer Corp
Original Assignee
Pioneer Corp
Pioneer Electronic 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 Pioneer Corp, Pioneer Electronic Corp filed Critical Pioneer Corp
Priority to JP675481A priority Critical patent/JPS57119582A/en
Publication of JPS57119582A publication Critical patent/JPS57119582A/en
Publication of JPS637714B2 publication Critical patent/JPS637714B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/77—Circuits for processing the brightness signal and the chrominance signal relative to each other, e.g. adjusting the phase of the brightness signal relative to the colour signal, correcting differential gain or differential phase
    • H04N9/78—Circuits for processing the brightness signal and the chrominance signal relative to each other, e.g. adjusting the phase of the brightness signal relative to the colour signal, correcting differential gain or differential phase for separating the brightness signal or the chrominance signal from the colour television signal, e.g. using comb filter

Abstract

PURPOSE:To prevent cross color disturbance by extracting a chromaticity signal directly in a line correlation state, and extracting the chromaticity signal through a BPF, which attenuates a luminance signal component, in other state. CONSTITUTION:The output of an LPF12 is amplified by an amplifier 13, whose output is processed by rectification 14 to form a line-correlation detection part which detects line correlation. With the output of this line correlation detection part, a switch circuit 16 extracts a chromaticity signal, separated at a line-correlation part, directly. The circuit 16 extracts a luminance signal, separated through a BPF10 whic attenuates a luminance component, where the line correlation is not born. Thus, cross-color disturbance is prevented securely and the resolution of color is improved.
JP675481A 1981-01-19 1981-01-19 Comb-shape filter Granted JPS57119582A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP675481A JPS57119582A (en) 1981-01-19 1981-01-19 Comb-shape filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP675481A JPS57119582A (en) 1981-01-19 1981-01-19 Comb-shape filter

Publications (2)

Publication Number Publication Date
JPS57119582A true JPS57119582A (en) 1982-07-26
JPS637714B2 JPS637714B2 (en) 1988-02-18

Family

ID=11646967

Family Applications (1)

Application Number Title Priority Date Filing Date
JP675481A Granted JPS57119582A (en) 1981-01-19 1981-01-19 Comb-shape filter

Country Status (1)

Country Link
JP (1) JPS57119582A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51135424A (en) * 1975-04-14 1976-11-24 Thomson Csf Luminance and chromaticity signal separator

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51135424A (en) * 1975-04-14 1976-11-24 Thomson Csf Luminance and chromaticity signal separator

Also Published As

Publication number Publication date
JPS637714B2 (en) 1988-02-18

Similar Documents

Publication Publication Date Title
JPS57124723A (en) Perforation detector for film
JPS5429919A (en) Video signal processing circuit
JPS57119582A (en) Comb-shape filter
JPS5244120A (en) Color information detection circuit
JPS6430387A (en) Y/c separator circuit
JPS57155852A (en) Stereo reproducing device
JPS5574285A (en) Separator for luminance and chroma signal
JPS5425116A (en) Color signal demodulator circuit of color television on secam system
JPS57164605A (en) Amplifier
JPS5354000A (en) Detection signal processing circuit of photoelectric type smoke detectors
JPS53112032A (en) Color signal processing circuit of secam system
JPS5297623A (en) Phase detection unit
JPS5776987A (en) Signal detection circuit
JPS53136430A (en) Noise eliminator circuit
JPS574682A (en) Secam color discriminating circuit
JPS546723A (en) Pickup device
JPS54116841A (en) Signal processor of color television receiver
JPS5628584A (en) Automatic color saturation control unit
JPS5492016A (en) Comb type filter
JPS53137634A (en) Detection system for character frame
JPS5397811A (en) Detector for abnormality in synchronism
JPS5528652A (en) Rejection circuit for cross-color
JPS5778292A (en) Color gain variable circuit
JPS5264224A (en) Color killer circuit
JPS5348616A (en) Signal isolation circuit