Digital encoder-decoder

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371 42, 371 45, 371 47, G06F 1110

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043120709

ABSTRACT:
A digital encoding and decoding system suited for use in a mobile trunked dispatch communication system capable of error correction, error detection, and detection of loss of synchronization. The encoder comprises a cyclic block encoder, an autosynchronization sequence combiner, a convolutional encoder, and a bit interleaver to encode information to be transmitted. The decoder comprises a bit de-interleaver, a convolutional decoder, an autosynchronization sequence combiner, and a cyclical block decoder to recover the transmitted information and also indicates whether any errors are present in the recovered information.

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Lin, An Introduction to Error Correcting Codes, Prentice Hall, 1970, pp. 70-83.

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