Data compression system

Communications: electrical – Audible indication – Percussion-type sound producer

Patent

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Details

364900, H03M 730

Patent

active

047017457

ABSTRACT:
A data compression system includes an input store (1) for receiving and storing a plurality of bytes of data from an outside source. Data processing means for processing successive bytes of data from the input store includes circuit means (21-25) operable to check whether a sequence of bytes is identical with a sequence of bytes already processed, output means (27) operable to apply to a transfer medium (12) each byte of data not forming part of such an identical sequence, and an encoder (26) responsive to the identification of such a sequence to apply to the transfer means (12) an identification signal which identifies both the location in the input store of the previous occurrence of the sequence of bytes and the number of bytes in the sequence.

REFERENCES:
patent: 4054951 (1977-10-01), Jackson

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