JPS5795788A - Color television signal processor - Google Patents

Color television signal processor

Info

Publication number
JPS5795788A
JPS5795788A JP16286281A JP16286281A JPS5795788A JP S5795788 A JPS5795788 A JP S5795788A JP 16286281 A JP16286281 A JP 16286281A JP 16286281 A JP16286281 A JP 16286281A JP S5795788 A JPS5795788 A JP S5795788A
Authority
JP
Japan
Prior art keywords
signal
luminance
adder
filtered
output
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
JP16286281A
Other languages
Japanese (ja)
Inventor
Seiji Tanaka
Shusaku Nagahara
Yoshizumi Eto
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP16286281A priority Critical patent/JPS5795788A/en
Publication of JPS5795788A publication Critical patent/JPS5795788A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Processing Of Color Television Signals (AREA)

Abstract

PURPOSE:To achieve effective use of expensive 1H delay line, by realizing the function of the seperation of luminance and chroma components, and vertical direction profile emphasis of luminance component with the same comb type filter. CONSTITUTION:An NTSC signal fed to a terminal 1 is separated to each signal at a comb type filter 2. Output signals of 1H delay lines 3,4 are summed at an adder 5 and filtered at an HPF 6 to obtain a luminance signal high frequency component without carrier chrominance signal component. On the other hand, an output signal of the delay line 3 is filtered at an LPF 8 to be a luminance signal low frequency component. Further, the output signal of the delay lines 3,4 and the input signal are summed at an adder 9, filtered at an LPF 10 to obtain a vertical profile signal of the luminance signal. They are summed at an adder 12 to obtain the luminance signal emphasizing the profile and eliminating the carrier chrominance signal at the output terminal 13. On the other hand, the output of the adder 9 is filtered at an HPF 14 and a carrier chrominance signal rejected with the luminance signal is obtained at an output terminal 15.
JP16286281A 1981-10-14 1981-10-14 Color television signal processor Pending JPS5795788A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16286281A JPS5795788A (en) 1981-10-14 1981-10-14 Color television signal processor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16286281A JPS5795788A (en) 1981-10-14 1981-10-14 Color television signal processor

Publications (1)

Publication Number Publication Date
JPS5795788A true JPS5795788A (en) 1982-06-14

Family

ID=15762662

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16286281A Pending JPS5795788A (en) 1981-10-14 1981-10-14 Color television signal processor

Country Status (1)

Country Link
JP (1) JPS5795788A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4750033A (en) * 1986-04-18 1988-06-07 Sony Corporation Comb filter, chrominance and luminance signal separating circuit for modifying the level-frequency characteristic of the luminance signal
US4764964A (en) * 1986-05-20 1988-08-16 Sony Corporation Signal processing apparatus
US5045929A (en) * 1989-05-13 1991-09-03 Zenith Electronics Corporation Three dimensional luma/chroma separation and vertical detail generation
JP2006522719A (en) * 2003-04-11 2006-10-05 アイサ オートマシオン アンデュストリエル ソシエテ アノニム Method for automatically packaging containers

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3798353A (en) * 1970-10-31 1974-03-19 Fernseh Gmbh Correcting vertical resolution in television color images
JPS51135424A (en) * 1975-04-14 1976-11-24 Thomson Csf Luminance and chromaticity signal separator

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3798353A (en) * 1970-10-31 1974-03-19 Fernseh Gmbh Correcting vertical resolution in television color images
JPS51135424A (en) * 1975-04-14 1976-11-24 Thomson Csf Luminance and chromaticity signal separator

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4750033A (en) * 1986-04-18 1988-06-07 Sony Corporation Comb filter, chrominance and luminance signal separating circuit for modifying the level-frequency characteristic of the luminance signal
US4764964A (en) * 1986-05-20 1988-08-16 Sony Corporation Signal processing apparatus
US5045929A (en) * 1989-05-13 1991-09-03 Zenith Electronics Corporation Three dimensional luma/chroma separation and vertical detail generation
JP2006522719A (en) * 2003-04-11 2006-10-05 アイサ オートマシオン アンデュストリエル ソシエテ アノニム Method for automatically packaging containers

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