JPS55114089A - Picture-quality improving circuit of color television receiver - Google Patents

Picture-quality improving circuit of color television receiver

Info

Publication number
JPS55114089A
JPS55114089A JP1973379A JP1973379A JPS55114089A JP S55114089 A JPS55114089 A JP S55114089A JP 1973379 A JP1973379 A JP 1973379A JP 1973379 A JP1973379 A JP 1973379A JP S55114089 A JPS55114089 A JP S55114089A
Authority
JP
Japan
Prior art keywords
frequency component
low
picture
signal
control
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
JP1973379A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6219115B2 (enExample
Inventor
Toshio Murakami
Masaru Noda
Hiroaki Nabeyama
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 JP1973379A priority Critical patent/JPS55114089A/ja
Publication of JPS55114089A publication Critical patent/JPS55114089A/ja
Publication of JPS6219115B2 publication Critical patent/JPS6219115B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Picture Signal Circuits (AREA)
  • Processing Of Color Television Signals (AREA)
JP1973379A 1979-02-23 1979-02-23 Picture-quality improving circuit of color television receiver Granted JPS55114089A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1973379A JPS55114089A (en) 1979-02-23 1979-02-23 Picture-quality improving circuit of color television receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1973379A JPS55114089A (en) 1979-02-23 1979-02-23 Picture-quality improving circuit of color television receiver

Publications (2)

Publication Number Publication Date
JPS55114089A true JPS55114089A (en) 1980-09-03
JPS6219115B2 JPS6219115B2 (enExample) 1987-04-27

Family

ID=12007511

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1973379A Granted JPS55114089A (en) 1979-02-23 1979-02-23 Picture-quality improving circuit of color television receiver

Country Status (1)

Country Link
JP (1) JPS55114089A (enExample)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0213179A (ja) * 1988-04-06 1990-01-17 Yves C Faroudja ローレベル遷移の遷移レベルブーストを行う遷移レベルブースタ
US5621480A (en) * 1993-04-19 1997-04-15 Mitsubishi Denki Kabushiki Kaisha Image quality correction circuit and method based on color density
US6002448A (en) * 1993-04-19 1999-12-14 Mitsubishi Denki Kabushiki Kaisha Image quality correction circuit and method based on color density

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0213179A (ja) * 1988-04-06 1990-01-17 Yves C Faroudja ローレベル遷移の遷移レベルブーストを行う遷移レベルブースタ
US5621480A (en) * 1993-04-19 1997-04-15 Mitsubishi Denki Kabushiki Kaisha Image quality correction circuit and method based on color density
US5663769A (en) * 1993-04-19 1997-09-02 Mitsubishi Denki Kabushiki Kaisha Image quality correction circuit based on color density
US5910823A (en) * 1993-04-19 1999-06-08 Mitsubishi Denki Kabushiki Kaisha Image quality correction circuit and method based on color density
US6002448A (en) * 1993-04-19 1999-12-14 Mitsubishi Denki Kabushiki Kaisha Image quality correction circuit and method based on color density
US6018373A (en) * 1993-04-19 2000-01-25 Mitsubishi Denki Kabushiki Kaisha Image quality correction circuit and method based on color density
US6023304A (en) * 1993-04-19 2000-02-08 Mitsubishi Denki Kabushiki Kaisha Image quality correction circuit and method based on color density
US6081302A (en) * 1993-04-19 2000-06-27 Mitsubishi Denki Kabushiki Kaisha Image quality correction circuit and method based on color density

Also Published As

Publication number Publication date
JPS6219115B2 (enExample) 1987-04-27

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