Method and device for mapping a data stream into an SDI channel

Method and device for mapping a data stream into an SDI channel

The invention provides a method for mapping a data stream onto an SDI channel, said data stream comprising a sequence of m-bit words, a range of values from 0 to 2**n−1 and from 2**m−2**n to 2**m−1 being excluded values on said SDI channel. The method comprises the steps of grouping the words to be...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Lugan, Sébastien, Buysschaert, Charles Daniel, Pellegrin, Pascal Hubert, Denison, Thomas, Rouvroy, Gaël
Format: Patent
Sprache:eng
Schlagworte:
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PICTORIAL COMMUNICATION, e.g. TELEVISION
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Beschreibung
Zusammenfassung:The invention provides a method for mapping a data stream onto an SDI channel, said data stream comprising a sequence of m-bit words, a range of values from 0 to 2**n−1 and from 2**m−2**n to 2**m−1 being excluded values on said SDI channel. The method comprises the steps of grouping the words to be transmitted, detecting if at least one of the words of the group contains a number of MSB's equal to one, and then recoding these MSBs and adding a constant, in order that no excluded values are obtained. Supplementary bits signal groups that have been recoded.