Universal digital data copying system

Details Universal digital data copying system Universal digital data copying system

1981-01-02

1983-03-01

Kilgore, Robert M.

Dynamic magnetic information storage or retrieval

Record copying

G11B 586

Patent

active

043756557

ABSTRACT:
A Universal Digital Data Copying System for the blind copying of digital information from electromagnetic media such as flexible discs is disclosed. The system provides a master drive and a slave drive by which information is read from the master drive, timed by a phase-locked oscillator, converted by a serial to parallel converter, and controlled by a controller and stored in the high speed memory buffer. The output of the controller is fed to a parallel to serial converter and precompensation circuit. Thereupon the information is written at the slave drive at a fixed clock rate. A verifier to test the quality of the recording is also disclosed. By the addition of other drive units, the system provides for any desired number of copies to be made concurrently from a single master. The invention thus provides a copying system independent of the media employed, format or encoding scheme used.

REFERENCES:
patent: 3535467 (1970-10-01), Thieme
patent: 3805284 (1974-04-01), Coon
patent: 3842245 (1974-10-01), Schneiderhan
patent: 4106062 (1978-08-01), Foote
patent: 4320486 (1982-03-01), Cooley

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