JPS5570120A - Comb-line filter - Google Patents

Comb-line filter

Info

Publication number
JPS5570120A
JPS5570120A JP14398078A JP14398078A JPS5570120A JP S5570120 A JPS5570120 A JP S5570120A JP 14398078 A JP14398078 A JP 14398078A JP 14398078 A JP14398078 A JP 14398078A JP S5570120 A JPS5570120 A JP S5570120A
Authority
JP
Japan
Prior art keywords
luminance signal
delay
vertical
signal component
luminance
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
JP14398078A
Other languages
Japanese (ja)
Inventor
Hiroshi Tanigawa
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP14398078A priority Critical patent/JPS5570120A/en
Publication of JPS5570120A publication Critical patent/JPS5570120A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H15/00—Transversal filters

Landscapes

  • Processing Of Color Television Signals (AREA)

Abstract

PURPOSE:To correct the deterioration of the vertical luminance signal resolution and thus to enhance the reproduced picture quality by adding the luminance signal component and the chrominance signal component together and then obtaining the luminance signal component with the vertical contour correction given from the output side. CONSTITUTION:Delay line 31 performs the delay which is longer than the 1H period by the delay time of LPF6; while delay line 32 features the same delay time as LPF6. As a result, the delay time is made to differ by the amount exactly equivalent to the 1H period at the input point of adder 4, and the luminance component with no vertical detail signal added is obtained at the output side. This luminance signal component is compared with the chrominance component obtained at the output of subtractor 5. And then the luminance signal component with the vertical contour correction given is obtained from the output side of adder 8 since the delay is already given by the delay time at filter 6. In this way, the deterioration is corrected for the resolution of the vertical luminance signal at the luminance- chrominance separation circuit, thus increasing the reproduced picture quality of the TV picture receiver.
JP14398078A 1978-11-21 1978-11-21 Comb-line filter Pending JPS5570120A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14398078A JPS5570120A (en) 1978-11-21 1978-11-21 Comb-line filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14398078A JPS5570120A (en) 1978-11-21 1978-11-21 Comb-line filter

Publications (1)

Publication Number Publication Date
JPS5570120A true JPS5570120A (en) 1980-05-27

Family

ID=15351511

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14398078A Pending JPS5570120A (en) 1978-11-21 1978-11-21 Comb-line filter

Country Status (1)

Country Link
JP (1) JPS5570120A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5377424A (en) * 1976-12-21 1978-07-08 Hitachi Ltd Chrominance components processing unit of color television receiver
JPS53119628A (en) * 1977-03-25 1978-10-19 Rca Corp Electric signal processor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5377424A (en) * 1976-12-21 1978-07-08 Hitachi Ltd Chrominance components processing unit of color television receiver
JPS53119628A (en) * 1977-03-25 1978-10-19 Rca Corp Electric signal processor

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