JPS5510201A - Separator for color television luminance signal and chromaticity signal - Google Patents
Separator for color television luminance signal and chromaticity signalInfo
- Publication number
- JPS5510201A JPS5510201A JP5015878A JP5015878A JPS5510201A JP S5510201 A JPS5510201 A JP S5510201A JP 5015878 A JP5015878 A JP 5015878A JP 5015878 A JP5015878 A JP 5015878A JP S5510201 A JPS5510201 A JP S5510201A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- chromaticity
- signals
- difference
- luminance signal
- 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
- Processing Of Color Television Signals (AREA)
Abstract
PURPOSE: To separate completely a chromaticity signal by making use of equality in amplitude and inversion of polarity between chromaticity subcarrier signals of adjacent frames.
CONSTITUTION: Input NTSC composite signals after A/D conversion are wirtten to one-frame memory 7 and then read out in the writing order. In this case, a time difference equivalent to one frame is made between an A/D conversion output and the read-out signal of it. Since stillpicture signals with a one-frame difference in time are equal in amplitude and difference in polarity, the luminance signal and chromaticity signal can be separated by addition and subtraction between both the signals. As for a motion picture, the luminance signal can be separated from the chromaticity signal by extracting still picture components because of a difference with data from one-frame memory 7.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5015878A JPS5911312B2 (en) | 1978-04-28 | 1978-04-28 | Color television luminance signal chromaticity signal separation device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5015878A JPS5911312B2 (en) | 1978-04-28 | 1978-04-28 | Color television luminance signal chromaticity signal separation device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5510201A true JPS5510201A (en) | 1980-01-24 |
JPS5911312B2 JPS5911312B2 (en) | 1984-03-14 |
Family
ID=12851376
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5015878A Expired JPS5911312B2 (en) | 1978-04-28 | 1978-04-28 | Color television luminance signal chromaticity signal separation device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5911312B2 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55123280A (en) * | 1979-03-16 | 1980-09-22 | Nippon Hoso Kyokai <Nhk> | Luminance and chromaticity signal separator |
JPS6197287U (en) * | 1984-11-30 | 1986-06-21 | ||
JPS6272290A (en) * | 1985-09-26 | 1987-04-02 | Nec Home Electronics Ltd | Y/c separating device for high definition television |
JPH06327024A (en) * | 1993-05-12 | 1994-11-25 | Nec Corp | Video signal processing circuit |
JP2002330447A (en) * | 2001-04-27 | 2002-11-15 | Sony Corp | Luminance chrominance signal separation and noise reduction circuit |
-
1978
- 1978-04-28 JP JP5015878A patent/JPS5911312B2/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55123280A (en) * | 1979-03-16 | 1980-09-22 | Nippon Hoso Kyokai <Nhk> | Luminance and chromaticity signal separator |
JPS6158079B2 (en) * | 1979-03-16 | 1986-12-10 | Japan Broadcasting Corp | |
JPS6197287U (en) * | 1984-11-30 | 1986-06-21 | ||
JPS6272290A (en) * | 1985-09-26 | 1987-04-02 | Nec Home Electronics Ltd | Y/c separating device for high definition television |
JPH0695767B2 (en) * | 1985-09-26 | 1994-11-24 | 日本電気ホームエレクトロニクス株式会社 | High-definition television Y / C separation device |
JPH06327024A (en) * | 1993-05-12 | 1994-11-25 | Nec Corp | Video signal processing circuit |
JP2002330447A (en) * | 2001-04-27 | 2002-11-15 | Sony Corp | Luminance chrominance signal separation and noise reduction circuit |
Also Published As
Publication number | Publication date |
---|---|
JPS5911312B2 (en) | 1984-03-14 |
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