Method and means for filtering and amplifying signal components

Details Method and means for filtering and amplifying signal components Method and means for filtering and amplifying signal components

1974-05-08

1976-03-16

Eddleman, Alfred H.

Dynamic magnetic information storage or retrieval

Recording for monetary delay of an analog signal

360 18, 360 24, 360 54, G11B 509, G11B 2710, G11B 2728

Patent

active

039450350

ABSTRACT:
A method and means for filtering and intensifying signal components of a desired predetermined period of repetition wherein a plurality of recording heads in tandem arrangement are provided, adjacent recording heads being equally spaced from each other. A magnetic tape is drawn past the recording heads at a constant velocity. The recurring signal component of desired period of repetition is delivered to the recording heads simultaneously and in such a way that the portion of the magnetic tape upon which each individual recording of the desired signal component is made by each recording head reaches the next recording head simultaneously with the next such signal component. As a result the amplitude of the desired signal component is increased on the magnetic tape and the amplitude of all other periods of repetition is relatively reduced. The summated signal can be reproduced by means of a playback head and an appropriate readout means.

REFERENCES:
patent: 699630 (1902-05-01), Pedersen
patent: 2105318 (1938-01-01), Goldsmith
patent: 3247483 (1966-04-01), Wood
patent: 3378825 (1968-04-01), Offner
patent: 3480932 (1969-11-01), Brandstadter
patent: 3665429 (1972-05-01), Thornley

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