Secure copy method and device for stored programs

Details Secure copy method and device for stored programs Secure copy method and device for stored programs

1983-07-19

1985-10-29

Cardillo, Jr., Raymond F.

Dynamic magnetic information storage or retrieval

Record copying

360 60, 360 53, G11B 586, G11B 1504

Patent

active

045503508

ABSTRACT:
A method and device for reproducing coded programs in which an incomplete program is recorded on one medium and a program having an algorithm for completing the program on the first medium is provided on a second medium. Upon correction of the first program by the algorithm of the second program to record on a third medium, data corresponding to the number of times of operation of the program on the second medium is updated on the second and/or the first medium, to enable accounting of the number of times the program on the first medium has been reproduced.

REFERENCES:
patent: 3169773 (1965-02-01), Redlich et al.
patent: 3243782 (1966-03-01), Underwood
patent: 3798359 (1974-03-01), Feistel
patent: 3958081 (1976-05-01), Ehrsam et al.
patent: 4038645 (1977-07-01), Birney et al.
patent: 4060839 (1977-11-01), Meadows
patent: 4120030 (1978-10-01), Johnstone
patent: 4271482 (1981-06-01), Giraud
patent: 4351007 (1982-09-01), Youngquist
Griffiths, Bloom; Flexible Digital Sound Editing Program for Minicomputer Systems, 3/82, Audio Eng. Soc., vol. 30, No. 3, pp. 127-134.

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