Data reproducing circuit

Details Data reproducing circuit Data reproducing circuit

1982-04-15

1984-10-16

Cardillo, Jr., Raymond F.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358342, 360 381, 369 32, 369 59, H04N 576

Patent

active

044778422

ABSTRACT:
A data reproducing circuit comprises a modulated data signal supplying circuit for supplying a modulated data signal including a framing code representing a series of data signals, a clock signal detecting and reproducing circuit supplied with the demodulated data signal, for detecting and reproducing a clock signal, a data signal demodulating circuit supplied with the modulated data signal, for demodulating the data signal, a memory circuit for reading in and reading out a data signal demodulated by the data signal demodulating circuit, a framing code detecting circuit for detecting a framing code within a signal read in by the memory circuit, an instruction signal producing circuit responsive to the detection of the framing code by the framing code detecting circuit, for producing a signal for instructing read-out from the memory circuit, and a dropout detecting circuit for detecting dropout within the modulated data signal supplied thereto and producing a detected output, so that the instruction signal producing circuit does not produce the instruction signal.

REFERENCES:
patent: 4409627 (1983-10-01), Eto et al.
Malhieu, "A Random Access System Adapted for the Optical Video Disk", Journal of the SMPTE, vol. 86, 2/77, pp. 80-83.

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