Method and arrangement for drop-out compensation during the repr

Details Method and arrangement for drop-out compensation during the repr Method and arrangement for drop-out compensation during the repr

1987-09-02

1989-03-14

LaRoche, Eugene R.

Dynamic magnetic information storage or retrieval

Monitoring or testing the progress of recording

358336, H04N 578

Patent

active

048129259

ABSTRACT:
A method for drop-out compensation during the reproduction of magnetically recorded signals, which signals are reproduced from several tracks of a record carrier and are combined into a monochannel signal. In this method, a drop-out identification signal is produced in each channel. Further, at least one bit combination of the digital signal exhibiting time errors is reserved for the transmission of the drop-out identification signal. The drop-out identification signal is subjected, together with the digital signal, to a time error correction. The drop-out identification signal, corrected with respect to time errors, is used for controlling a drop-out memory in a manner such that in the case of a drop-out, the output signal of the drop-out memory is inserted instead of the disturbed signal part into the monochannel signal corrected with respect to time errors, while with a non-disturbed signal, the drop-out memory is reloaded.

REFERENCES:
patent: 4541018 (1985-09-01), Watanabe

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