JPS641389A - Signal processing circuit for television receiver - Google Patents
Signal processing circuit for television receiverInfo
- 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
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
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)
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 |
-
1987
- 1987-06-24 JP JP15543387A patent/JPH0632451B2/en not_active Expired - Lifetime
Cited By (2)
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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