Information reproducing apparatus

Details Information reproducing apparatus Information reproducing apparatus

1977-04-05

1979-12-25

Wolff, John H.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the record

360 75, 360 73, 226175, G11B 1518, G11B 1700, G11B 2102

Patent

active

041808398

ABSTRACT:
Apparatus are disclosed for reproducing information from an information carrying tape wherein the tape is advanced by the imposition of a first force longitudinally of the tape, and wherein a second force extending into the plane of the tape at an angle to the first force is imposed. A flutter component is detected in information reproduced from the tape, and the second force is varied in response to the detected flutter component in the sense of a flutter reduction. Advantageously, the mentioned first force may be varied in response to a low-frequency flutter component, while the second force may be varied in respone to a high-frequency flutter component. Piezoelectric tape drive capstan, tape guiding and reproduce head actuating or mounting systems are also disclosed.

REFERENCES:
patent: 3048665 (1962-08-01), Wilcox
patent: 3384767 (1968-05-01), Arnold et al.
patent: 3396890 (1968-08-01), Fulton
patent: 3524196 (1970-08-01), Church et al.
patent: 3559192 (1971-01-01), Schlossbauer
patent: 3706861 (1972-12-01), Giel
IBM Technical Disclosure Bulletin, vol. 15, No. 10, 3-1973, Closed-loop Head Positioning Apparatus, by Grant et al.

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