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Relational algebra operating device

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专利汇可以提供Relational algebra operating device专利检索,专利查询,专利分析的服务。并且PURPOSE:To efficiently make sort processing for a large capacity data in high speed, by making a processing element constituted of a processor by which an input data is sort processed through the use of two buffer memories and a memory having FIFO function. CONSTITUTION:Processing elements PE1-PEn coupled in n-stages of cascade consists of a processor Pk sort-processing by using two buffer memories Mk1 and Mk3 (where; k=1-n) and a memory Bk2 having FIFO function. The memory Bk2 can access readout and write of data at the same time, and data are read out in the order of sequence of data for FIFO function. The data are alternately written in memories Mk1, Bk2, Mk3, Bk2, Mk1, Bk2... in parallel, the processor Pk compares data written in two memories, reads out them according to a prescribed sort rule and outputs the result to the next stage. A control processor CP controls the sort processing of the sort engine consisting of the elements PE1-PEn and writes an output via a common bus to an output buffer memory OB.,下面是Relational algebra operating device专利的具体信息内容。

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