Magnetophoresis type display and graphic input/output device usi

Details Magnetophoresis type display and graphic input/output device usi Magnetophoresis type display and graphic input/output device usi

1985-10-07

1987-06-23

Schreyer, Stafford D.

Telegraphy

Systems

Position coordinate determination for writing

340709, 340787, 340788, 40426, 40449, 346 21, 434409, G08C 2100, G09F 1900

Patent

active

046754768

ABSTRACT:
A magnetophoresis type display suited to display characters, graphics and other patterns which are entered into a handwriting input device, and a graphic input/output device which, by utilizing such a display, in an input mode generates an electric signal (graphic signal) indicative of coordinates of an input point and, in a display mode, displays a pattern responsive to a graphic signal applied thereto. The display is provided with means for partially erasing a pattern which has been entered and displayed. The partial erase means comprises a carriage loaded with a magnet which is movable vertically and horizontally driven by a drive mechanism.

REFERENCES:
patent: 3055113 (1962-09-01), Grandjean
patent: 3570445 (1971-03-01), Johnson
patent: 3591939 (1971-07-01), Payne et al.
patent: 4288936 (1981-09-01), Okutsu

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