Magnetic recording and/or reproducing apparatus having tape guid

Dynamic magnetic information storage or retrieval – Record editing

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Details

360 361, H04N 578

Patent

active

053371925

ABSTRACT:
A magnetic recording apparatus comprises a time base compressing portion for causing a video signal to be subjected to time base compression, a recording signal producing portion for forming a recording video signal based on the video signal with compressed time base, a tape guide cylinder, a rotary magnetic head device disposed in the tape guide cylinder, and a recording signal supplying portion for supplying the rotary magnetic head device with the recording video signal, wherein assuming that .alpha. represents the diameter of a standard tape guide cylinder employed in a standard apparatus, .beta. represents a tape wrapping angle on the standard tape guide cylinder, .gamma. represents the revolving speed of a standard rotary magnetic head device disposed in the standard tape guide cylinder, and .delta. represents the number of magnetic gap portions of the standard rotary magnetic head device, the diameter of the tape guide cylinder is selected to be X.multidot..alpha., where X is a positive number smaller than one, the tape wrapping angle on the tape guide cylinder is selected to be .beta./X, the revolving speed of the rotary magnetic head device is selected to be Z.multidot..gamma., where X is a positive integer larger than 1 and smaller than 4, and the number of magnetic gap portions of the rotary magnetic head is selected to be .delta..

REFERENCES:
patent: 4510538 (1985-04-01), Sato et al.
patent: 4785358 (1988-11-01), Ninomiya
patent: 4930031 (1990-05-01), Nagahara et al.
Patent Abstracts of Japan, vol. 9292, Nov. 19, 1985, JP60129903 Yutaka, Magnetic Recording and Reproducing Device.
Patent Abstracts of Japan, vol. 7 No. 204, Sep. 9, 1983, JP 58-101578, Oota, Video Signal Recorder.
Patent Abstracts of Japan vol. 011389, Dec. 19, 1987 of JP 62154205 Kenji, Recording and Reproducing Device for Sound Signal.

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