Signal processing apparatus

Pulse or digital communications – Equalizers

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375341, 371 431, 360 46, 360 65, H03H 730

Patent

active

058090711

ABSTRACT:
A signal processing apparatus for performing maximum likelihood decoding using one of a partial response PR(1,1) scheme and a partial response PR(1,0,1) scheme, has a maximum likelihood decoding device which includes a comparison circuit for comparing a branch metric difference supplied from an external circuit and a held past metric difference, a holding circuit for holding, as a new metric difference, one of the branch metric difference supplied from the external circuit and the held past metric difference on the basis of a comparison output from the comparison circuit, and a deciding circuit for deciding decoded data on the basis of the comparison output from the comparison circuit.

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IEE Transactions on Communication and Electronics, vol. 82, May 1963 "The duobinakry technique for high speed data transmission", pp. 214-218.
Lender, A., "The Duobinary Technique For High-Speed Data Transmission", IEEE Trans. Comm and Electron, vol. CS-5, pp. 214-218, May 1963.

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