Viterbi decoder with direct current restoration

Details Viterbi decoder with direct current restoration Viterbi decoder with direct current restoration

2007-01-16

2007-01-16

Chase, Shelly (Department: 2133)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Digital data error correction

Reexamination Certificate

active

10945117

ABSTRACT:
A decoder for detecting data within an input signal with attenuated low frequency components that comprises a Viterbi decoder, is disclosed. Viterbi decoder internal data is used along with its output bits to reduce delay between the restored direct current (DC) component and the input signal to zero. As a result, increased accuracy of DC restoration and corresponding bit error rate reduction are achieved.

REFERENCES:
patent: 6249553 (2001-06-01), Honma
patent: 6404829 (2002-06-01), Sonu
patent: 6707624 (2004-03-01), Erden et al.
patent: 2003/0002419 (2003-01-01), Kuma et al.
patent: 2003/0043487 (2003-03-01), Morita et al.

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