Head drum assembly for use in a video cassette recorder

Details Head drum assembly for use in a video cassette recorder Head drum assembly for use in a video cassette recorder

1995-12-07

1998-03-31

Levy, Stuart S.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

360108, 36013024, G11B 552, G11B 2100, G11B 2118

Patent

active

057345295

ABSTRACT:
A head drum assembly for use in a video cassette recorder comprises a rotary shaft, a flange, a plurality of the heads, a rotary drum, and signal transmitting means, wherein the signal transmitting means has a lower stator transformer mounted on a top surface of the stationary drum, the lower stator transformer provided with a plurality of grooves, each of the lower stator grooves being wound with a coil, a stopper ring mounted on the lower stator transformer, a rotor transformer attached on the circumferential protruding portion of the flange and provided with a plurality of grooves on its upper and lower surfaces, each of the upper rotor and the lower rotor grooves being wound with a coil, and an upper stator transformer mounted on the stopper ring and provided with a plurality of grooves, each of the upper stator grooves being wound with a coil, each of the lower stator grooves being aligned with each of the lower rotor grooves and each of the upper stator grooves being aligned with each of the upper rotor grooves.

REFERENCES:
patent: 5001585 (1991-03-01), Schalk
patent: 5019926 (1991-05-01), Van Tuijl et al.
patent: 5325248 (1994-06-01), Tabuchi et al.

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