JPS5685986A - Color television signal processing circuit - Google Patents

Color television signal processing circuit

Info

Publication number
JPS5685986A
JPS5685986A JP16260879A JP16260879A JPS5685986A JP S5685986 A JPS5685986 A JP S5685986A JP 16260879 A JP16260879 A JP 16260879A JP 16260879 A JP16260879 A JP 16260879A JP S5685986 A JPS5685986 A JP S5685986A
Authority
JP
Japan
Prior art keywords
signal
output
circuit
border line
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
JP16260879A
Other languages
Japanese (ja)
Inventor
Shinichiro Taguchi
Nobuya Nagao
Tetsuo Sakai
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP16260879A priority Critical patent/JPS5685986A/en
Publication of JPS5685986A publication Critical patent/JPS5685986A/en
Pending 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 obtain an emphasized natural border line by separating a composite video signal into a chrominance signal and a luminance signal, which are free from a cross color and a dot disturbance, and also correcting the vertical border line of the luminance signal. CONSTITUTION:A signal M which has been delayed by 1 horizontal period, and a signal T delayed by 2H horizontal period are generated by the 1H delay lines 22, 23 from a composite video signal B of the input terminal 21, and the operation of M-(B+T)/2 and M+(B+T)/2 is executed by the compounding circuits 24, 25. The output of the circuit 24 is input to the BPF26, and it is separated and output as a chrominance signal from the terminal 27. Also, the output of the circuit 25 is a luminance signal, and it is input to the compounding circuit 32 through the delay 30 and the LPF31. Also, the output of the circuit 25 is pick up only an output of the vertical border line correcting signal by the LPF28, the amplitude is adjusted by the variable gain amplifying circuit 29, and it is compounded with the luminance signal component whose delay time from the LPF31 is made to coincide by the circuit 32, and the resultant is output from the terminal 33.
JP16260879A 1979-12-14 1979-12-14 Color television signal processing circuit Pending JPS5685986A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16260879A JPS5685986A (en) 1979-12-14 1979-12-14 Color television signal processing circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16260879A JPS5685986A (en) 1979-12-14 1979-12-14 Color television signal processing circuit

Publications (1)

Publication Number Publication Date
JPS5685986A true JPS5685986A (en) 1981-07-13

Family

ID=15757822

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16260879A Pending JPS5685986A (en) 1979-12-14 1979-12-14 Color television signal processing circuit

Country Status (1)

Country Link
JP (1) JPS5685986A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02296488A (en) * 1989-04-20 1990-12-07 Thomson Consumer Electron Inc Television receiver

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02296488A (en) * 1989-04-20 1990-12-07 Thomson Consumer Electron Inc Television receiver

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