Excavating
Patent
1978-07-17
1980-08-12
Atkinson, Charles E.
Excavating
G06F 1110
Patent
active
042176603
ABSTRACT:
Digital information is convolutionally encoded and stored in row by successive row sequence in a storage matrix. The interleaved data from the matrix is outputted in column by successive column order for transmission over a medium.
The decoding process includes loading the encoded bit stream in column by successive column sequence in a decoder matrix. The stored data is then outputted in row by row sequence, thereby deinterleaving the bit stream. The original information bits are then regenerated by processing the bit stream through a convolutional decoder.
The instant data processing system is capable of correcting for one out of four successive random errors and burst errors having a length of one-fourth of the entire message.
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Franco, Coding for Error-Free Communications, Electro-Technology, Jan. 1968, pp. 53, 55-62.
Peterson and Weldon, Error Correcting Codes, Second Edition, the MIT Press, 1972, pp. 427-435 and 440-445.
Atkinson Charles E.
Gillman James W.
Motorola Inc.
Scheer James A.
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