Abstract: 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.

Abstract: For converting an MPEG-2-compatible transport stream, it is separated into video and/or audio portions, as well as information that accompanies programs. The information that accompanies programs is converted into a DVD-compatible format and embedded in a DVD-compatible program stream together with the video and/or audio portions. This measure makes extended display possible in low-end terminals having only one base function.

Abstract: 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.

Abstract: 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 tpcr transported in the clock reference (PCR) with the time of the system clock tclock and stamps the difference (tclock−tpcr) of the two times into the clock reference. After remultiplexing, a stamping unit reads out the time difference (tclock−tpcr) of the two times from the time stamp, subtracts it from the actual time in the system clock and stamps the value (tpcr+d) into the clock reference. Due to similarities in operation, the time recovery unit and stamping unit may share common circuitry.