Common error protection code for data stored as a composite of d

Details Common error protection code for data stored as a composite of d Common error protection code for data stored as a composite of d

1996-01-05

1997-04-01

Kim, Kenneth S.

Excavating

360 48, 371 377, 395872, G06F 1108

Patent

active

056174322

ABSTRACT:
A data processing system and method providing error protection for data transmitted between a processor and a buffer in one data format and transmitted between the buffer and a user device in a different data format. An adaptor is interposed between the processor and the buffer for transmitting to the buffer (i) successive data segments in the one data format, each ending with appended check bytes in a preselected cyclic redundancy code (CRC); and (ii) check bytes using the same CRC appended at the end of each segment in the different data format to create in the buffer records which are a composite of both formats, but viewed as in the one data format by the processor and as in the different data format by the user device. The boundaries of the segments in each format must be known to the adaptor. Since both formats use the same CRC, CRC bytes for each segment in each data format will provide an identical preselected value in the absence of a detectable error. A second adaptor, which does not and need not know the boundaries of the data segments in the one data format, is interposed between the buffer and the user device for transmitting the data between the buffer and user device in the different data format.

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