BG48559A1 - Device for input of symbols in programme television signal - Google Patents
Device for input of symbols in programme television signalInfo
- Publication number
- BG48559A1 BG48559A1 BG8256388A BG8256388A BG48559A1 BG 48559 A1 BG48559 A1 BG 48559A1 BG 8256388 A BG8256388 A BG 8256388A BG 8256388 A BG8256388 A BG 8256388A BG 48559 A1 BG48559 A1 BG 48559A1
- Authority
- BG
- Bulgaria
- Prior art keywords
- signal
- chrominance
- symbols
- input
- television signal
- Prior art date
Links
Landscapes
- Picture Signal Circuits (AREA)
Abstract
The device is applicable for use in TV studio processing equipment for all standard systems transmitting chrominance, especially for SECAM systems, where the mix is carried out with no frequency resolution of the chrominance signal nor its demodulation. An adaptive method is used to establish the level of a graphic signal, in accordance with a well known method. The adaptation to the signal is extended in relation to the optimal end contrast of the inserted graph, in comparison to the current brightness, which also adds to the new inserted image transparency. The device makes use of simplified and reliable translators at the input video signal levels with terminal key treatment, where, apart from good stability and precision, a better signal/noise ratio is obtained, because the processing channel is closed in the absence of an inserting signal.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BG8256388A BG48559A1 (en) | 1988-01-08 | 1988-01-08 | Device for input of symbols in programme television signal |
EP19890100173 EP0323851A3 (en) | 1988-01-08 | 1989-01-05 | Method and apparatus for entering symbols into a programme televion signal |
JP267089A JPH01288073A (en) | 1988-01-08 | 1989-01-09 | Method and apparatus for inserting code into television signal |
HU6089A HUT49020A (en) | 1988-01-08 | 1989-01-09 | Method and apparatus for converting a train of signals into television screen |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BG8256388A BG48559A1 (en) | 1988-01-08 | 1988-01-08 | Device for input of symbols in programme television signal |
Publications (1)
Publication Number | Publication Date |
---|---|
BG48559A1 true BG48559A1 (en) | 1991-03-15 |
Family
ID=3919988
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BG8256388A BG48559A1 (en) | 1988-01-08 | 1988-01-08 | Device for input of symbols in programme television signal |
Country Status (1)
Country | Link |
---|---|
BG (1) | BG48559A1 (en) |
-
1988
- 1988-01-08 BG BG8256388A patent/BG48559A1/en unknown
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