JPH0369970U - - Google Patents
Info
- Publication number
- JPH0369970U JPH0369970U JP12717189U JP12717189U JPH0369970U JP H0369970 U JPH0369970 U JP H0369970U JP 12717189 U JP12717189 U JP 12717189U JP 12717189 U JP12717189 U JP 12717189U JP H0369970 U JPH0369970 U JP H0369970U
- Authority
- JP
- Japan
- Prior art keywords
- video signal
- contour correction
- correction circuit
- predetermined time
- circuit
- 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
Links
Landscapes
- Picture Signal Circuits (AREA)
Description
第１図は本考案の全体構成を示すブロツク図、
第２図は従来回路の構成を示すブロツク図、第３
図は、従来回路の場合の各部信号波形図、第４図
は、本考案の場合の各部信号波形図である。
４〜６……クランプ回路、７……クリツプ回路
、８……輪郭信号発生回路。
Figure 1 is a block diagram showing the overall configuration of the present invention.
Figure 2 is a block diagram showing the configuration of a conventional circuit;
The figure is a signal waveform diagram of each part in the case of a conventional circuit, and FIG. 4 is a diagram of signal waveforms of each part in the case of the present invention. 4 to 6... Clamp circuit, 7... Clip circuit, 8... Contour signal generation circuit.
Claims (1)
信号の原信号と所定の時間遅延した映像信号及び
、該所定の時間とほぼ同一の時間だけさらに遅延
した映像信号をそれぞれ加減算し、輪郭補正信号
を発生させる輪郭補正回路において、該輪郭補正
回路の前段に上記それぞれの入力映像信号の所定
の映像信号レベルよりも黒レベル方向の映像信号
をクリツプするクリツプ回路を備えたことを特徴
とする輪郭補正回路。 A contour correction signal is generated by adding and subtracting the original video signal clamped at the same DC potential, the video signal delayed by a predetermined time, and the video signal further delayed by approximately the same time as the predetermined time. 1. A contour correction circuit, characterized in that the contour correction circuit is provided with a clip circuit preceding the contour correction circuit for clipping a video signal that is closer to a black level than a predetermined video signal level of each of the input video signals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12717189U JPH0369970U (en) | 1989-11-01 | 1989-11-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12717189U JPH0369970U (en) | 1989-11-01 | 1989-11-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0369970U true JPH0369970U (en) | 1991-07-12 |
Family
ID=31674945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12717189U Pending JPH0369970U (en) | 1989-11-01 | 1989-11-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0369970U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01264475A (en) * | 1988-04-15 | 1989-10-20 | Fujitsu General Ltd | aperture compensation circuit |
| JPH0340669A (en) * | 1989-07-07 | 1991-02-21 | Matsushita Electric Ind Co Ltd | Video signal processor |
-
1989
- 1989-11-01 JP JP12717189U patent/JPH0369970U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01264475A (en) * | 1988-04-15 | 1989-10-20 | Fujitsu General Ltd | aperture compensation circuit |
| JPH0340669A (en) * | 1989-07-07 | 1991-02-21 | Matsushita Electric Ind Co Ltd | Video signal processor |
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