Robert Boschgmbh

Alexander Romanowski

Mathias Wien

Sven Bauer

Peter Siepen

Wilhelm Vogt

Thomas Wedi

In the case of a method for transformation encoding of moving-image sequences, motion vectors are estimated block-by-block, with which said motion vectors a motion compensation is carried out. The prediction error is transformation-encoded. According to the invention, the block size of the transformation encoding is coupled to the block size used in each case for the motion compensation. This measure makes it possible to enhance the efficiency of the encoding of the prediction error in hybrid encoding procedures that use various block sizes.

Method for transformation-coding full motion image sequences

A method and system for updating clock references in a digital data stream is proposed, wherein all clock references present in the data stream are updated by means of a single system clock. A time recovery unit compares time t,transported in the clock reference (PCR) with the time of the system clock t,and stamps the difference (t,&minus;t,) of the two times into the clock reference. After remultiplexing, a stamping unit reads out the time difference (t,&minus;t,) of the two times from the time stamp, subtracts it from the actual time in the system clock and stamps the value (t,&plus;d) into the clock reference. Due to similarities in operation, the time recovery unit and stamping unit may share common circuitry.

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Hildesheim, Germany

Alexander Romanowski