Detector circuit for detecting drop-out in reproduced digital da

Details Detector circuit for detecting drop-out in reproduced digital da Detector circuit for detecting drop-out in reproduced digital da

1988-03-18

1989-08-22

Richardson, Robert L.

Facsimile and static presentation processing

Facsimile

Recording apparatus

360 381, H04N 576

Patent

active

048601217

ABSTRACT:
A drop-out detector circuit for use in a data reproducing device in which a reproduced high-frequency signal is digitized. The most significant bit of the digitized signal is sampled, and its logic state detected over a predetermined number of sampling periods. Both high- and low-frequency drop-outs can be detected from the detected logic state pattern of the most significant bit.

REFERENCES:
patent: 4498104 (1985-02-01), Schulz
patent: 4591925 (1986-05-01), Trytko
patent: 4760470 (1988-07-01), Wagner et al.

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