Code error detecting circuit

Details Code error detecting circuit Code error detecting circuit

1996-11-08

1999-06-29

Tu, Trinh L.

Excavating

371 377, 371 671, G06F 1110, G06F 1100

Patent

active

059178418

ABSTRACT:
A Cyclic Redundancy Check (CRC) code word except a fixed pattern is provided to a code data input terminal of a division circuit in synchronization with a clock signal and divided at the division circuit, then, a remainder data of the division result is outputted from output terminals. The remainder data outputted from the output terminals is compared with a CRC inherent value at a comparison circuit, and a comparison result signal indicating whether the CRC code word includes errors is outputted. A temporary memory means takes in the comparison result signal in response to rise of a clock signal inputted into a clock signal input terminal, temporarily stores it, then output its storage contents as an error detecting signal via an output node.

REFERENCES:
patent: 3648238 (1972-03-01), Yarrington
patent: 3733477 (1973-05-01), Tate et al.
patent: 4506365 (1985-03-01), Collins
patent: 5495488 (1996-02-01), Nakamura
patent: 5504758 (1996-04-01), Inoue et al.

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