JPH01105287U - - Google Patents
Info
- Publication number
- JPH01105287U JPH01105287U JP15188U JP15188U JPH01105287U JP H01105287 U JPH01105287 U JP H01105287U JP 15188 U JP15188 U JP 15188U JP 15188 U JP15188 U JP 15188U JP H01105287 U JPH01105287 U JP H01105287U
- Authority
- JP
- Japan
- Prior art keywords
- output
- delay line
- luminance
- chromaticity signal
- comparator
- 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
- 238000000926 separation method Methods 0.000 claims description 3
- 230000001934 delay Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Processing Of Color Television Signals (AREA)
Description
第１図は本考案による輝度・色度信号分離回路
の一実施例を示す構成図、第２図は本考案のノツ
チフイルタの特性図、第３図は本考案のバンドパ
スフイルタの特性図、第４図は従来における輝度
・色度信号分離回路の一例を示す構成図である。
４……第１の１Ｈ遅延線、６……第１の比較器
、７……第２の１Ｈ遅延線、９……第２の比較器
。
FIG. 1 is a block diagram showing an embodiment of a luminance/chromaticity signal separation circuit according to the present invention, FIG. 2 is a characteristic diagram of a notch filter according to the present invention, and FIG. 3 is a characteristic diagram of a bandpass filter according to the present invention. FIG. 4 is a configuration diagram showing an example of a conventional luminance/chromaticity signal separation circuit. 4...first 1H delay line, 6...first comparator, 7...second 1H delay line, 9...second comparator.
Claims (1)
を１Ｈ期間遅延する第１の１Ｈ遅延線と、 上記輝度信号出力と第１の１Ｈ遅延線からの出
力との差に基づいてライン相関の強弱に応じた比
較出力を発生する第１の比較器と、 上記くし型フイルタにより分離された色度信号
出力を１Ｈ期間遅延する第２の１Ｈ遅延線と、 上記色度信号出力と第２の１Ｈ遅延線からの出
力との差に基づいてライン相関の強弱に応じた比
較出力を発生する第２の比較器とを備え、 上記第１ならびに第２の比較器からのそれぞれ
の出力に応じて、輝度信号系に介在されたノツチ
フイルタならびに色度信号系に介在されたバンド
パスフイルタの特性を制御するようにしたことを
特徴とする輝度・色度信号分離回路。[Claims for Utility Model Registration] A first 1H delay line that delays a luminance signal output separated by a comb filter for a period of 1H, based on the difference between the luminance signal output and the output from the first 1H delay line. a first comparator that generates a comparison output according to the strength of the line correlation; a second 1H delay line that delays the chromaticity signal output separated by the comb filter for a 1H period; and the chromaticity signal output and a second comparator that generates a comparison output according to the strength of the line correlation based on the difference between the output from the second 1H delay line and the output from the first and second comparators. A luminance/chromaticity signal separation circuit characterized in that the characteristics of a notch filter interposed in a luminance signal system and a bandpass filter interposed in a chromaticity signal system are controlled according to the output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15188U JPH01105287U (en) | 1988-01-06 | 1988-01-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15188U JPH01105287U (en) | 1988-01-06 | 1988-01-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01105287U true JPH01105287U (en) | 1989-07-14 |
Family
ID=31198926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15188U Pending JPH01105287U (en) | 1988-01-06 | 1988-01-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01105287U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5074332A (en) * | 1973-10-31 | 1975-06-19 |
-
1988
- 1988-01-06 JP JP15188U patent/JPH01105287U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5074332A (en) * | 1973-10-31 | 1975-06-19 |