ÜBERTRAGEN VON VBI-INFORMATION IN DIGITALEN FERNSEHDATENSTRÖMEN

ÜBERTRAGEN VON VBI-INFORMATION IN DIGITALEN FERNSEHDATENSTRÖMEN

A method and apparatus are provided for communicating VBI user information in digital television data streams via a generic syntax. The syntax allows the digital transport of virtually any type of user data that may be carried in the VBI portion of an analog television signal. A pixel generator is u...

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Hauptverfasser: WALKER, KENT G, NUBER, RAY
Format: Patent
Sprache:ger
Schlagworte:
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PICTORIAL COMMUNICATION, e.g. TELEVISION
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NUBER, RAY
description A method and apparatus are provided for communicating VBI user information in digital television data streams via a generic syntax. The syntax allows the digital transport of virtually any type of user data that may be carried in the VBI portion of an analog television signal. A pixel generator is used to insert VBI lines into a digital video signal using information provided in the user portion of the digital data stream. The syntax provides the pixel generator with the start time of the first symbol, the number of pixels per symbol, the high and low levels to insert, the fraction of the symbol time that is transition time, the number of symbols to insert and the frame line number on which to insert the data.
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subjects ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PICTORIAL COMMUNICATION, e.g. TELEVISION
title ÜBERTRAGEN VON VBI-INFORMATION IN DIGITALEN FERNSEHDATENSTRÖMEN
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