| 摘要 |
A system for processing a set of M base-one coded digital data words each having a capacity of N-bit levels for extracting a desired threshold data word therefrom is disclosed. An array of N M-stage shift registers are arranged to sequentially store each data word of the set in one of its columns. A data word is stored by shifting into the first column of the shift register rows only the bit levels of each data word which have a one status. This shifting operation renders a magnitude-related ordered set of the data words in the columns of the array. A predetermined column or columns may be tapped for extracting a data word representative of a desired threshold level of the contents of the array. In an alternative embodiment, a sequential train of similar base-one coded data words may be processed for extracting a desired data word from each of the most recent M data words of the train. This alternative embodiment is operative to perform shifting operations based on bit level comparisons of each data word ready for storage M + i and each corresponding data word i which is the oldest stored in the array. Similarly, a magnitude related ordered set is formed in the columns of the array with each most recent M data words of the train and likewise, a column or columns may be tapped for extracting the desired data word of each ordered set.
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