Excavating
Patent
1994-04-05
1996-04-02
Beausoliel, Jr., Robert W.
Excavating
371 201, G06F 1100
Patent
active
055047610
ABSTRACT:
Error detection apparatus for a communications line includes an even/odd detection unit for detecting whether an even number of bipolar pulses or an odd number of bipolar pulses occur between a first pulse (violation pulse) interrupting an alternating pattern of bipolar pulses and a second pulse (violation pulse), and an output unit which determines that there is a line error in a target block defined by the first and second violation pulses when a detection result of the even/odd detection unit indicates an even number, wherein the first and second violation pulses occur in a code sequence in accordance with a predetermined coding scheme.
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Ishiwatari Junichi
Shinbashi Masahiro
Beausoliel, Jr. Robert W.
Fujitsu Limited
Palys Joseph E.
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