JPS6477385A - Sequential scan converting circuit - Google Patents
Sequential scan converting circuitInfo
- Publication number
- JPS6477385A JPS6477385A JP62233907A JP23390787A JPS6477385A JP S6477385 A JPS6477385 A JP S6477385A JP 62233907 A JP62233907 A JP 62233907A JP 23390787 A JP23390787 A JP 23390787A JP S6477385 A JPS6477385 A JP S6477385A
- Authority
- JP
- Japan
- Prior art keywords
- horizontal scanning
- television signal
- delay means
- scanning period
- delay
- 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
Landscapes
- Television Systems (AREA)
Abstract
PURPOSE:To eliminate picture quality degradation when a picture having the motion of an oblique line is converted non-interlacedly by generating a scanning line to be inserted between horizontal scanning lines based on the output of two delay means to respectively delay, by the prescribed number of picture elements, television signal and a signal that the television signal is delayed by one horizontal scanning period. CONSTITUTION:The title circuit is provided with a first multistage delay means to delay the interlaced television signal from an input terminal 35 by the prescribed number of the picture elements in one horizontal scanning period and a third multistage delay means to delay, by the prescribed number of the picture elements in one horizontal scanning period, the television signal delayed by one horizontal scanning period by a line memory 40. The mutual correlation of the respective television signals outputted from the first multistage delay means and the respective television signals outputted from the third multistage delay means are respectively calculated and based on the correlation value, the scanning line to be inserted between the horizontal scanning lines of the interlaced television signal is generated.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62233907A JP2653442B2 (en) | 1987-09-18 | 1987-09-18 | Progressive scan conversion circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62233907A JP2653442B2 (en) | 1987-09-18 | 1987-09-18 | Progressive scan conversion circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6477385A true JPS6477385A (en) | 1989-03-23 |
JP2653442B2 JP2653442B2 (en) | 1997-09-17 |
Family
ID=16962455
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62233907A Expired - Lifetime JP2653442B2 (en) | 1987-09-18 | 1987-09-18 | Progressive scan conversion circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2653442B2 (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6243989A (en) * | 1985-08-22 | 1987-02-25 | Nec Home Electronics Ltd | Video adaptive scanning line interpolating device |
-
1987
- 1987-09-18 JP JP62233907A patent/JP2653442B2/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6243989A (en) * | 1985-08-22 | 1987-02-25 | Nec Home Electronics Ltd | Video adaptive scanning line interpolating device |
Also Published As
Publication number | Publication date |
---|---|
JP2653442B2 (en) | 1997-09-17 |
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