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JPS5577289A - Color video signal processor - Google Patents

Color video signal processor

Info

Publication number
JPS5577289A
JPS5577289A JP15216578A JP15216578A JPS5577289A JP S5577289 A JPS5577289 A JP S5577289A JP 15216578 A JP15216578 A JP 15216578A JP 15216578 A JP15216578 A JP 15216578A JP S5577289 A JPS5577289 A JP S5577289A
Authority
JP
Japan
Prior art keywords
signal
circuit
filter
bpf1
mixer
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
JP15216578A
Other languages
Japanese (ja)
Inventor
Shinji Kaneko
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP15216578A priority Critical patent/JPS5577289A/en
Publication of JPS5577289A publication Critical patent/JPS5577289A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To obtain a color video signal which never lowers vertical resolution while the mixing of the side-band signal of a horizontal synchronizing signal is eliminated, by providing a circuit with an arithmetic type comb line filter and switch circuit.
CONSTITUTION: A chrominance signal including the burst signal of BPF1 is supplied to subtraction type comb line filter 2 composed of delay line 3 for one horizontal period delay and subtracting mixer 4. Mixer 4 subtracts the output of delay line 3 from that of BPF1 to cancel the side-band signal of the horizontal synchronizing signal. Then, the output of this mixer 4 and that of BPF1 are alternated by switch circuit 5. Then, the luminance signal of LPF11 is supplied to synchronous separator circuit 6 to separate the horizontal synchronizing signal, which is applied to switching signal generating circuit 7, and circuit 5 is changed over by a switching signal over to a filter side 2 side in a burst signal section or to a filter 1 side if not. This output is passed through frequency converter circuit 16 and LPF17 to obtain a low- band converted chrominance signal.
COPYRIGHT: (C)1980,JPO&Japio
JP15216578A 1978-12-07 1978-12-07 Color video signal processor Pending JPS5577289A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15216578A JPS5577289A (en) 1978-12-07 1978-12-07 Color video signal processor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15216578A JPS5577289A (en) 1978-12-07 1978-12-07 Color video signal processor

Publications (1)

Publication Number Publication Date
JPS5577289A true JPS5577289A (en) 1980-06-10

Family

ID=15534438

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15216578A Pending JPS5577289A (en) 1978-12-07 1978-12-07 Color video signal processor

Country Status (1)

Country Link
JP (1) JPS5577289A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4701787A (en) * 1985-01-28 1987-10-20 Mitsubishi Denki Kabushiki Kaisha Selectively enabled image signal processing circuit using recursive filtering

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4701787A (en) * 1985-01-28 1987-10-20 Mitsubishi Denki Kabushiki Kaisha Selectively enabled image signal processing circuit using recursive filtering
US4772939A (en) * 1985-01-28 1988-09-20 Mitsubishi Denki Kabushiki Kaisha Selectively enabled image signal processing circuit using recursive filtering

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