BG48559A1 - Device for input of symbols in programme television signal - Google Patents

Device for input of symbols in programme television signal

Info

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
Application number
BG8256388A
Inventor
Emil P Vladkov
Original Assignee
Komitet Za Televizija I Radio
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Komitet Za Televizija I Radio filed Critical Komitet Za Televizija I Radio
Priority to BG8256388A priority Critical patent/BG48559A1/en
Priority to EP19890100173 priority patent/EP0323851A3/en
Priority to HU6089A priority patent/HUT49020A/en
Priority to JP267089A priority patent/JPH01288073A/en
Publication of BG48559A1 publication Critical patent/BG48559A1/en

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  • 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.
BG8256388A 1988-01-08 1988-01-08 Device for input of symbols in programme television signal BG48559A1 (en)

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
HU6089A HUT49020A (en) 1988-01-08 1989-01-09 Method and apparatus for converting a train of signals into television screen
JP267089A JPH01288073A (en) 1988-01-08 1989-01-09 Method and apparatus for inserting code into television signal

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)

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