JPS57166794A - Transmitting system of color video signal - Google Patents
- ️Thu Oct 14 1982
JPS57166794A - Transmitting system of color video signal - Google Patents
Transmitting system of color video signalInfo
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Publication number
- JPS57166794A JPS57166794A JP5153481A JP5153481A JPS57166794A JP S57166794 A JPS57166794 A JP S57166794A JP 5153481 A JP5153481 A JP 5153481A JP 5153481 A JP5153481 A JP 5153481A JP S57166794 A JPS57166794 A JP S57166794A Authority
- JP
- Japan Prior art keywords
- signal
- component
- band
- pass filter
- low Prior art date
- 1981-04-06 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N11/00—Colour television systems
- H04N11/06—Transmission systems characterised by the manner in which the individual colour picture signal components are combined
- H04N11/12—Transmission systems characterised by the manner in which the individual colour picture signal components are combined using simultaneous signals only
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Color Television Systems (AREA)
Abstract
PURPOSE:To reduce the capacity of a frame memory of a signal transmission system, by setting the sampling frequency at a sufficiently low level. CONSTITUTION:For the dot sequential signal S read out of a frame memory 40, the high band component YH of the luminance signal Y is extracted through a band pass filter 52. At the same time, a multiplexer 51 separates the synthetic red primary color signal R' from the signal S. Then the low band component RL is extracted out of the signal R' through a low pass filter 53. Furthermore the components YH and RL are added together through a signal adder 56 to obtain the reproduced red primary signal R'. Here no problem arises for the practical use of the signal S as long as the low side band of the component YH of the signal Y in the carrier component is not mixed into the DC component of a chroma component. As a result, the sampling frequency f1 is set to satisfy fY<f1, where fY is high band component cutoff frequency of band pass filter 31.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5153481A JPS57166794A (en) | 1981-04-06 | 1981-04-06 | Transmitting system of color video signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5153481A JPS57166794A (en) | 1981-04-06 | 1981-04-06 | Transmitting system of color video signal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57166794A true JPS57166794A (en) | 1982-10-14 |
Family
ID=12889681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5153481A Pending JPS57166794A (en) | 1981-04-06 | 1981-04-06 | Transmitting system of color video signal |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57166794A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6229383A (en) * | 1985-07-30 | 1987-02-07 | Nippon Tv Housoumou Kk | Television system |
| US4868679A (en) * | 1987-01-14 | 1989-09-19 | Pioneer Electronic Corporation | Method of recording and reproducing color video signals |
-
1981
- 1981-04-06 JP JP5153481A patent/JPS57166794A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6229383A (en) * | 1985-07-30 | 1987-02-07 | Nippon Tv Housoumou Kk | Television system |
| US4868679A (en) * | 1987-01-14 | 1989-09-19 | Pioneer Electronic Corporation | Method of recording and reproducing color video signals |
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