Apparatus for reproducing digital audio and video data

Details Apparatus for reproducing digital audio and video data Apparatus for reproducing digital audio and video data

1989-11-20

1992-08-18

Psitos, Aristotelis

Dynamic magnetic information storage or retrieval

Record editing

358343, 360 64, G11B 502

Patent

active

051404737

ABSTRACT:
Digital audio and video signals are recorded on successive tracks which extend obliquely formed on a video tape, and reproduced therefrom by reproducing heads which are movable in a direction transverse to the tracks by means of a bimorph device so that a plurality of tracks, corresponding to one field video and audio signals, are skipped in a variable tape speed mode. Tracks provided for the audio signal are arranged at opposite ends of the video tracks. In a mode where the head skips one field, the signal amplitude level of the audio signal reproduced from one end portion of the audio tracks is controlled so as to be gradually reduced and a signal amplitude level of the audio signal reproduced from the other end portion of a different field track portion is controlled so as to be gradually increased so that cross-fading thereof is effected.

REFERENCES:
patent: 4296443 (1981-10-01), Sakamoto et al.
patent: 4644400 (1987-02-01), Kouyama et al.
patent: 4707805 (1987-11-01), Narusawa et al.
patent: 4717972 (1988-01-01), Heitmann
patent: 4751590 (1988-06-01), Wilkinson
patent: 5012361 (1991-04-01), Chiba et al.
Fernseh and Kinotechnik, vol. 38, No. 7, Jul. 1984, pp. 281-286; J. Heitmann: "Digitale Videoaufzeichnung Grundlagen.Standardisierung.Entwicklung".
S.M.P.T.B. Journal, vol. 97, No. 3, Mar. 1988, pp. 182-193, White Plains, N.Y., U.S.: R. Brush: "Design Considerations for the D-2 NTSC Composite DVTR".
Wireless World, No. 1850, May 1984, pp. 55-58, Sheepen Place, Olchester, GB; J. R. Watkinson et al.: "Variable-Speed Video Playback".

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