Microprocessor controlled reproducing apparatus having asynchron

Details Microprocessor controlled reproducing apparatus having asynchron Microprocessor controlled reproducing apparatus having asynchron

1984-10-02

1987-01-06

Stellar, George G.

Dynamic magnetic information storage or retrieval

Record editing

360 73, G11B 1552

Patent

active

046351388

ABSTRACT:
A microprocessor controlled multiple servo system for use with a recording and reproducing apparatus is disclosed. The system controls all servo systems for a magnetic tape recording and reproducing apparatus, including a capstan servo, a reel servo, a scanning drum servo and an automatic scan tracking servo which controls the position of reproduced heads carried by the scanning drum which are of the type which can be transversely moved relative to the longitudinal direction of recorded tracks to accurately follow the tracks during special effect reproducing modes, such as slow motion, stop motion and fast motion reproducing. The microprocessor controlled servo system has unique and powerful functional capabilities which enable it to provide reliable precise asynchronous reproducing so that precisely accurate time compression and expansion can be carried out without performing any editing of the recorded material.

REFERENCES:
patent: 3683992 (1972-08-01), Farr
patent: 4296446 (1981-10-01), Zorbalas
patent: 4302784 (1981-11-01), Mussatt
patent: 4348699 (1982-09-01), Tsuchiya et al.
patent: 4358798 (1982-11-01), Hedlund et al.
IEEE Transactions on Consumer Electronics, vol. CE-27, Feb. 1981, pp. 71-79, One Chip Servo System LSI for Home VCR, Kobori et al.

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