Transverse track location device with calibrated stepper motor

Details Transverse track location device with calibrated stepper motor Transverse track location device with calibrated stepper motor

1974-07-12

1976-01-06

Konick, Bernard

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Synchronizing moving-head moving-record recorders

360 73, 318685, G11B 2104, G11B 1546

Patent

active

039316394

ABSTRACT:
A track or stripe tape positioner for a helical scan or rotary head recorder uses digital techniques. The expected step size is preset into a counter. During the next phase, a calibration phase, the tape is stepped through a plurality of stripes whereat the preset value is adjusted to measured values. In the third phase, the average step size is maintained subject to certain averaged changes thus providing a high degree of noise rejection to ensure reliable incremental stepping of a record tape through the recorder.

REFERENCES:
patent: 3358080 (1967-12-01), MacLeod
patent: 3644813 (1972-02-01), Schoendorff
patent: 3805286 (1974-04-01), Kavanagh
patent: 3845500 (1974-10-01), Hart

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