JPS5541081A - Chrominance signal circuit of pal color television receiver - Google Patents
Chrominance signal circuit of pal color television receiverInfo
- Publication number
- JPS5541081A JPS5541081A JP11550978A JP11550978A JPS5541081A JP S5541081 A JPS5541081 A JP S5541081A JP 11550978 A JP11550978 A JP 11550978A JP 11550978 A JP11550978 A JP 11550978A JP S5541081 A JPS5541081 A JP S5541081A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- output
- phase
- detector
- inversion mode
- 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
- Processing Of Color Television Signals (AREA)
Abstract
PURPOSE: To eliminate the lateral noise at weak electric field reception, by controlling the FF of ID (identification) circuit making correct the inversion mode of PAL switch with the output of the differentiation circuit smoothing the output of phase detection and improving the characteristics against noise.
CONSTITUTION: The circuit provides the ID circuit 20 making accurate the inversion mode of the PAL switch 17 and the burst gate circuit 21 picking up the burst signal every other one line with the pulse of 1/2 horizontal frequency from FF 19 through the connection of the burst gate 10. Further, the phase shifter 22 shifting the ouput of the subcarrier oscillator 12 by +45° and the phase detector 23 phase- detecting the burst signal of the gate circuit 21 and the subcarrier from the phase shifter 22, are provided, and the output of the detector 23 is added to the integration circuit 24, the output of the detector 23 is fed to the FF circuit 19 with smoothing, the noise characteristics is improved with normal inversion mode, and lateral noise caused at weak electric field reception is eliminated.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11550978A JPS5541081A (en) | 1978-09-18 | 1978-09-18 | Chrominance signal circuit of pal color television receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11550978A JPS5541081A (en) | 1978-09-18 | 1978-09-18 | Chrominance signal circuit of pal color television receiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5541081A true JPS5541081A (en) | 1980-03-22 |
Family
ID=14664273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11550978A Pending JPS5541081A (en) | 1978-09-18 | 1978-09-18 | Chrominance signal circuit of pal color television receiver |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5541081A (en) |
-
1978
- 1978-09-18 JP JP11550978A patent/JPS5541081A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ES478723A1 (en) | Color television receiver. | |
| JPS5267917A (en) | Color tv receiver | |
| JPS5541081A (en) | Chrominance signal circuit of pal color television receiver | |
| JPS5552684A (en) | Color television picture receiver | |
| JPS5568789A (en) | Television picture receiver | |
| JPS5561186A (en) | Color television receiver | |
| JPS54149424A (en) | Signal detector of television receiver | |
| JPS55151874A (en) | Television sound multiple broadcast receiver | |
| JPS54137233A (en) | Color identification circuit for color television picture receiver using secam-pal conversion system | |
| JPS5765087A (en) | Color television receiver | |
| JPS5523696A (en) | Phase shift circuit | |
| JPS54161231A (en) | Color television receiver | |
| JPS5668084A (en) | Color signal circuit of pal color television receiver | |
| JPS5511649A (en) | Color decision circuit for secam-system color television receiver | |
| JPS5267217A (en) | Color demodulation circuit of color tv receiver | |
| JPS5673991A (en) | Color demodulation device | |
| JPS5561182A (en) | Synchronizing unit for pal system color television receiver | |
| JPS5461416A (en) | Television receiver | |
| JPS5544201A (en) | Multi-channel receiver selector for cable television | |
| JPS5730486A (en) | Chrominance demodulator | |
| JPS54159125A (en) | Correction circuit | |
| JPS5625884A (en) | Color demodulation unit | |
| JPS53140928A (en) | Television receiver | |
| GB1499409A (en) | Processing circuit for colour television signals | |
| JPS5652984A (en) | Synchronous coupling system of color television camera |