Apparatus for reproducing an encoded digital signal based on a f

Details Apparatus for reproducing an encoded digital signal based on a f Apparatus for reproducing an encoded digital signal based on a f

1995-05-31

1996-11-05

Hindi, Nabil Z.

Dynamic information storage or retrieval

Binary pulse train information signal

Binary signal gain processing

H04N 576

Patent

active

055724965

ABSTRACT:
An encoded digital signal reproducing apparatus in which a read signal from a recording medium is compared with each of thresholds different from each other to generate at least two binary-coded signals. When a first predetermined code train pattern is detected from one of the two binary-coded signals and a second predetermined code train pattern is simultaneously detected from the other of the two binary-coded signals, a frame synchronization detection signal is generated. A data signal is then decoded from the read signal on the basis of the timing at which the frame synchronization detection signal is generated. Thus, the probability of erroneous detection of the frame synchronization signal is reduced even with a high recording density, thus making it possible to correctly detect the frame synchronization signal.

REFERENCES:
patent: 5151891 (1992-09-01), Bergmans
patent: 5392268 (1995-02-01), Rokutan
patent: 5467330 (1995-11-01), Ishida et al.
patent: 5473591 (1995-12-01), Abe

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