Reproducing apparatus and method, and recording and...

Details Reproducing apparatus and method, and recording and... Reproducing apparatus and method, and recording and...

2005-08-01

2008-09-09

Hindi, Nabil Z (Department: 2627)

Dynamic information storage or retrieval

Binary pulse train information signal

Including sampling or a/d converting

C369S059220

Reexamination Certificate

active

07423949

ABSTRACT:
A signal of a run-length-limited code is read out from a recording medium. The read-out signal is converted into a reproduced digital signal. A decoder subjects the reproduced digital signal to first decoding different from run length decoding to get a first decoded signal. Information bit streams are generated from the first decoded signal. The information bit streams are different in timing by 1-bit-correpsonding intervals. Run length decoders subject the information bit streams to run length decoding to get run-length-decoded bit streams respectively. Each of the run-length-decoded bit streams undergoes one of error correction and error detection. A decision is made as to which of the run-length-decoded bit streams is the smallest in error number on the basis of results of the one of error correction and error detection. The run-length-decoded bit stream being the smallest in error number is selected and outputted as a likeliest information bit stream.

REFERENCES:
patent: 6492918 (2002-12-01), Rezzi et al.
patent: 10-106161 (1998-04-01), None

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