Rotary transformer circuit for multiple head video cassette reco

Details Rotary transformer circuit for multiple head video cassette reco Rotary transformer circuit for multiple head video cassette reco

1995-03-10

1997-08-26

Psitos, Aristotelis M.

Dynamic magnetic information storage or retrieval

General recording or reproducing

Signal switching

360 46, 360 64, G11B 1512, G11B 1514, G11B 509

Patent

active

056616139

ABSTRACT:
A rotary transformer circuit, for a video cassette recorder, including: a single rotary transformer; a plurality of magnetic heads for recording/playing back signals on the magnetic tape; and a switching circuit for selectively sampling each of the plurality of magnetic heads and for forming a signal of concatenated individual-head sub-signals and for selectively connecting a signal of concatenated individual-head sub-signals to corresponding ones of the plurality of magnetic heads. The switching circuit transferring the signal of concatenated individual-head sub-signals through the single rotary transformer. The circuit avoids noise caused by cross-talk when using multiple rotary transformers.

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patent: 5291342 (1994-03-01), Kim et al.
patent: 5369534 (1994-11-01), Han
patent: 5434720 (1995-07-01), Higashiyama et al.
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Patent Abstracts of Japan; vol. 10 No. 149; May 30, 1986; JP61003302 (Hitachi Seisakusho).
Patent Abstracts of Japan; vol. 10 No. 408; Jul. 29, 1993; JP5074002 (Sanyo Electric Co., Ltd.).

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