Elastic buffer with error detection using a hamming distance cir

Details Elastic buffer with error detection using a hamming distance cir Elastic buffer with error detection using a hamming distance cir

1992-05-18

1993-12-28

Beausoliel, Jr., Robert W.

Excavating

371 401, 371 571, 371 60, H03M 1300

Patent

active

052746470

ABSTRACT:
An elastic buffer circuit uses codes having a predetermined number of bits and a Hamming distance of 1 when adjacent memory elements are designated. The codes contain a common code in which bits other than, one bit of the code each adjacent memory element are the same. The elastic buffer includes a plurality of memory elements for storing data and then outputting the data. A writing designation means generates writing position coded for successively designating the memory element in cycles when data is stored in the memory element in synchronism with a first clock pulse using the code. A reading designation means generates a reading position code for successively designating the memory element in cycles using the codes when data is read out from the memory element in synchronism with a second clock pulse. An error detection circuit detects an occurrence of an over-flow error or an under-flow error when the common code of the memory element designated by the reading position code is the same as the common code of the memory element designated by the writing position code.

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