Mode selecting device for a video signal reproducing apparatus

Details Mode selecting device for a video signal reproducing apparatus Mode selecting device for a video signal reproducing apparatus

1981-10-06

1984-01-24

Konick, Bernard

Dynamic magnetic information storage or retrieval

Record editing

360137, 200DIG34, H04N 576

Patent

active

044280050

ABSTRACT:
A mode selecting device for a video tape reproducing apparatus of the type in which a magnetic tape is transported past rotary magnetic heads, includes a control shaft adapted to rotate about an axis, a control knob connected to the upper end of the control shaft for manually controlling the rotation of the control shaft, a photo-disk rotatable with the control shaft, a pair of photo-detectors associated with the photo-disk for detecting the rotational speed, the angular position and the direction of rotation of the control shaft about the axis, a latch mechanism for maintaining the control shaft in either a first or second axial position along the axis and for effecting successive change-overs between the first and second axial positions in response to successive depressions of the control knob, the speed of movement of the tape being controlled in response to the detection of the angular position when the control shaft is maintained in the first axial position and the speed of movement of the tape being controlled in response to the detection of the rotational speed when the control shaft is maintained in the second axial position.

REFERENCES:
patent: 4139872 (1979-02-01), Tachi
patent: 4161001 (1979-07-01), Sakamoto

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