Data processor for recording and reading out check data and true

Details Data processor for recording and reading out check data and true Data processor for recording and reading out check data and true

1981-02-06

1982-11-23

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

Checking record characteristics or modifying recording...

360 67, G11B 1502, G11B 502

Patent

active

043608426

ABSTRACT:
A data reader reads data from a magnetic tape using a reproduction head. This data is presented to a loading control circuit which amplifies the signal produced by the reproduction head, as needed. The sufficiency of the volume level produced by the loading control circuit is detected by a volume adjustment detection circuit which detects the sufficiency of the signal level. If the signal level is insufficient, a buzzer is sounded indicating to the operator of the data reader that the gain level of the loading control circuit is insufficient. If the gain level is determined to be sufficient by the volume adjustment detection circuit, a signal path to a data detection circuit is enabled. The data detection circuit determines the presence of actual data and presents this data to a readout circuit.

REFERENCES:
patent: 3430215 (1969-02-01), Krossa et al.
patent: 3660821 (1972-05-01), Weber et al.
patent: 3996558 (1976-12-01), Heun
patent: 4222081 (1980-09-01), Kamo et al.

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