JPS641389A - Signal processing circuit for television receiver - Google Patents

Signal processing circuit for television receiver

Info

Publication number
JPS641389A
JPS641389A JP15543387A JP15543387A JPS641389A JP S641389 A JPS641389 A JP S641389A JP 15543387 A JP15543387 A JP 15543387A JP 15543387 A JP15543387 A JP 15543387A JP S641389 A JPS641389 A JP S641389A
Authority
JP
Japan
Prior art keywords
signal
comb
line
line filter
input video
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
JP15543387A
Other languages
Japanese (ja)
Other versions
JPH011389A (en
JPH0632451B2 (en
Inventor
Toshinori Murata
Toshiyuki Kurita
Ikuya Arai
Shigeru Hirahata
Masahito Sugiyama
Himio Nakagawa
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 JP15543387A priority Critical patent/JPH0632451B2/en
Publication of JPH011389A publication Critical patent/JPH011389A/en
Publication of JPS641389A publication Critical patent/JPS641389A/en
Publication of JPH0632451B2 publication Critical patent/JPH0632451B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

PURPOSE: To obtain satisfactory picture quality by automatically detecting whether an input signal is a regular standard signal or a non-standard signal, and selecting an optimum signal processing system and a clock based on the result.
CONSTITUTION: The input video signal is detected whether it is the standard signal or the non-standard signal, and an optimum comb-line filter processing corresponding to an input video signal is executed based on the detected result. When the input video signal is decided to the standard signal, a frame comb-line filter 109 and a line comb-line filter 110 adapted to movement are used by using the clock in which color burst is set as a reference. When the input video signal is decided to be the non-standard signal, a line comb-line filter 102 previously separates luminance signal and chrominance signal, the frame comb-line filter 109 adapted to movement is operated for them by the clock in which a horizontal synchronizing signal is set as the reference. In case of a still picture, a frame comb-line processing is executed and in case of a moving image, it jumps and the output of the line comb-line filter 102 is outputted as a separation signal as it is. Thus, satisfactory picture quality can be obtained.
COPYRIGHT: (C)1989,JPO&Japio
JP15543387A 1987-06-24 1987-06-24 Signal processing circuit of television receiver Expired - Lifetime JPH0632451B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15543387A JPH0632451B2 (en) 1987-06-24 1987-06-24 Signal processing circuit of television receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15543387A JPH0632451B2 (en) 1987-06-24 1987-06-24 Signal processing circuit of television receiver

Publications (3)

Publication Number Publication Date
JPH011389A JPH011389A (en) 1989-01-05
JPS641389A true JPS641389A (en) 1989-01-05
JPH0632451B2 JPH0632451B2 (en) 1994-04-27

Family

ID=15605917

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15543387A Expired - Lifetime JPH0632451B2 (en) 1987-06-24 1987-06-24 Signal processing circuit of television receiver

Country Status (1)

Country Link
JP (1) JPH0632451B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02246690A (en) * 1989-02-21 1990-10-02 Grass Valley Group Inc:The Decoder for video signal
EP0411661A2 (en) * 1989-08-04 1991-02-06 Matsushita Electric Industrial Co., Ltd. Dot crawling interference elimination device and color subcarrier vertical correlation detection device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02246690A (en) * 1989-02-21 1990-10-02 Grass Valley Group Inc:The Decoder for video signal
EP0411661A2 (en) * 1989-08-04 1991-02-06 Matsushita Electric Industrial Co., Ltd. Dot crawling interference elimination device and color subcarrier vertical correlation detection device

Also Published As

Publication number Publication date
JPH0632451B2 (en) 1994-04-27

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