Importance

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Abstract

The apparatus for converting a first data stream supplied from a first buffer for accumulating the first data stream into a second data stream, and supplying the second data stream to a second buffer for accumulating the second data stream, is provided. The first data stream includes a plurality of first data groups each including significant data. Further, the first data stream includes a plurality of time values each indicating a point of time corresponding to a position of respective one of the plurality of first data groups within the first data stream. The apparatus includes: a first determining device for determining a first amount of the first data stream accumulated in the first buffer on the basis of at least one of the plurality of time values; a second determining device for determining a second amount of the second data stream accumulated in the second buffer on the basis of an amount of the second data stream that is supplied to the second buffer; a calculation device for calculating a difference between the first amount and the second amount by subtracting the second amount from the first amount; a first placing device for placing the significant data extracted from the first data stream supplied from the first buffer, into the second data stream, if the difference is smaller than a predetermined value; and a second placing device for placing an additional data into the second data stream, if the difference is not smaller than the predetermined value.

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First Claim