Magnetic tape position measuring system

Details Magnetic tape position measuring system Magnetic tape position measuring system

1977-11-29

1979-04-24

Konick, Bernard

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the record

360 38, 360 37, G11B 1518

Patent

active

041515668

ABSTRACT:
A magnetic tape position measuring system utilizes a detector and counter circuit which is responsive to the prerecorded control track signal of a magnetic tape recording as a position measuring signal on playback for improved accuracy. A second detector monitors the presence or absence of the prerecorded control track signal and in the absence of, or interruption of, the control track signal switching circuits automatically switch the measuring system to the magnetic tape driven tachometer signals so as to maintain a continuous position measure.

REFERENCES:
patent: 3897379 (1975-07-01), DeFrancesco
patent: 4037260 (1977-07-01), Busby
patent: 4044389 (1977-08-01), Oldershaw
patent: 4062048 (1977-12-01), Weber
RCA Catalog TA. 3950-Video Tape Editor.
Tape Address Detector Subsystem; by Schaefer et al., IBM Tech. Disc. Bull.; vol. 13, No. 10, Mar. 1971, pp. 2855-2856.

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