Robert Boschgmbh

Ant Nachrichtentechnik Gmbh

Jann Binder

Karlheinz Grotz

Klaus Krull

Georg Sussmeier

Wolfgang Bambach

The process for transmission of digital application data with a predetermined application data timing signal (T1) includes oversampling the application data signal for transmission of the application data with an independent timing signal (T2) which has a frequency which is greater than, but less than twice, that of the application data timing signal (T1). In order to make expensive timing rate adjustment measures unnecessary, the application data is transmitted with this independent timing signal for data transmission. The recovery of the application data timing signal (T1) at the receiver end can be accomplished without considerable effort or expense. The process includes regenerating the application data timing signal (T1) from the scanned application data signal transmitted at the independent timing signal (T2) on the reception end and subsequently recovering the application data signal with the aid of the regenerated application data timing signal (T1).

Process for transmission of digital application data

For the preparation of data such as digitized television channel signals or television channel bundles, useful data are periodically replaced by a frame marker (F) in at least one of N parallel partial data streams of different bit significance. For this replacement, a partial data stream of low bit significance is selected because there the degradation is lowest. Because of this measure, the bit rate does not have to be increased in order to include a frame marker and a simple structure is possible for the multiplexer and demultiplexer at the respective transmission interfaces.

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Aspach, Germany

Jann Binder