Verfahren und Vorrichtung zur Zusatzdatenübertragung in TV-Kanälen

Verfahren und Vorrichtung zur Zusatzdatenübertragung in TV-Kanälen

The method derives a system clock signal (ST) and a video pulse (BI) from the line sync pulses (ZI) by counting-out and evaluating areas free from information. Video and audio signals are digitised, stored, buffered, compressed and multiplexed into the data clock signal. Called-up additional data ar...

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Hauptverfasser: GOETTING, OLIVER, POEGEL, FRANK, LORENZ, RUDOLF-WERNER, SCHOENTHIER, JENS, HILLER, HARTMUT, FINGER, ADOLF
Format: Patent
Sprache:ger
Schlagworte:
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PICTORIAL COMMUNICATION, e.g. TELEVISION
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creator GOETTING, OLIVER
POEGEL, FRANK
LORENZ, RUDOLF-WERNER
SCHOENTHIER, JENS
HILLER, HARTMUT
FINGER, ADOLF
description The method derives a system clock signal (ST) and a video pulse (BI) from the line sync pulses (ZI) by counting-out and evaluating areas free from information. Video and audio signals are digitised, stored, buffered, compressed and multiplexed into the data clock signal. Called-up additional data are superimposed, pref. after being band-limited, on the colour composite video signal (FBAS). At the receiver, the data are regenerated by clamping, limiting and digitisation followed by digital correlation and decision. The additional data are demultiplexed and separated into video and audio for decompression and reproduction in analogue form.
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subjects ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PICTORIAL COMMUNICATION, e.g. TELEVISION
title Verfahren und Vorrichtung zur Zusatzdatenübertragung in TV-Kanälen
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