JPS5731286A - Improving device of picture quality - Google Patents
Improving device of picture qualityInfo
- Publication number
- JPS5731286A JPS5731286A JP10574780A JP10574780A JPS5731286A JP S5731286 A JPS5731286 A JP S5731286A JP 10574780 A JP10574780 A JP 10574780A JP 10574780 A JP10574780 A JP 10574780A JP S5731286 A JPS5731286 A JP S5731286A
- Authority
- JP
- Japan
- Prior art keywords
- supplied
- output
- luminance signal
- subtractor
- led
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/64—Circuits for processing colour signals
- H04N9/646—Circuits for processing colour signals for image enhancement, e.g. vertical detail restoration, cross-colour elimination, contour correction, chrominance trapping filters
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Processing Of Color Television Signals (AREA)
Abstract
PURPOSE:To improve the quality of pictures, by eliminating only the carrier chrominance signal without losing the high band component of a luminance signal. CONSTITUTION:The luminance signal led to an output terminal 14 is supplied to a band amplifier 15. The output of amplification of the amplifier 15 is supplied to a switching circuit 17 via a wave detector 16. On the other hand, the luminance signal led to the terminal 14 is supplied to one of the input terminals of a subtractor 19 via a delaying circuit 18, and the output of the circuit 17 is supplied to the other input of the subtractor 19. The output of the subtractor 19 is led to a dot suppression luminance signal output terminal 20.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10574780A JPS5731286A (en) | 1980-07-31 | 1980-07-31 | Improving device of picture quality |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10574780A JPS5731286A (en) | 1980-07-31 | 1980-07-31 | Improving device of picture quality |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5731286A true JPS5731286A (en) | 1982-02-19 |
Family
ID=14415841
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10574780A Pending JPS5731286A (en) | 1980-07-31 | 1980-07-31 | Improving device of picture quality |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5731286A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6129583U (en) * | 1984-07-26 | 1986-02-22 | ソニー株式会社 | Luminance signal separation circuit |
-
1980
- 1980-07-31 JP JP10574780A patent/JPS5731286A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6129583U (en) * | 1984-07-26 | 1986-02-22 | ソニー株式会社 | Luminance signal separation circuit |
JPH04632Y2 (en) * | 1984-07-26 | 1992-01-09 |
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