Programmable non-linear speed control for a recording and/or rep

Details Programmable non-linear speed control for a recording and/or rep Programmable non-linear speed control for a recording and/or rep

1984-09-04

1985-08-27

Stellar, George G.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the record

360 103, G11B 1544

Patent

active

045381909

ABSTRACT:
A monlinear speed control for special motion reproducing of a video recording and reproducing apparatus is disclosed. The apparatus is of the type which has an automatic scan tracking servo which controls the position of the 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 so as to accurately follow the tracks during variable speed special effect reproducing modes. The nonlinear control controls the longitudinal tape speed through the capstan servo and provides vernier control where it should be desirably located so that the operator can accurately control the special effect speeds. The nonlinear control also automatically compensates for changes in the speed and introduces a delay in the response to rapid changes that may occur at high speed special motion reproducing so that visually disturbing rapid changes in the video image will not be experienced by a viewer.

REFERENCES:
patent: 4004205 (1977-01-01), Yamamoto et al.
IEEE Transactions On Consumer Electronics, vol. CE-27, Feb. 1981 pp. 71-71 Kobori et al.: One Chip Servo System LSI For Home VCR.

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