Digitizer having selected area designation

Details Digitizer having selected area designation Digitizer having selected area designation

1989-12-11

1991-02-12

Grimley, A. T.

Photocopying

Contact printing

Light boxes

355218, 355326, 355328, G03G 2100

Patent

active

049928287

ABSTRACT:
Apparatus for selecting and displaying areas on an original document which are to receive special editing. High intensity light passing through a liquid crystal device (LCD) is projected through the document to highlight the selected areas. Control of the electronic shutters in the LCD is responsive to the coordinate data entered by the digitizing apparatus. The complete area can be highlighted as well as only highlighting a border around the designated area. Specific color can be used for highlighting the selected area to provide additional information as to the type of editing to be performed within the selected area.

REFERENCES:
patent: 4268164 (1981-05-01), Yajima et al.
patent: 4371898 (1983-02-01), Nakamura
patent: 4375918 (1983-03-01), Isono et al.
patent: 4687317 (1987-08-01), Appel et al.
patent: 4699498 (1987-10-01), Naemura et al.
patent: 4720729 (1988-01-01), Watanabe
patent: 4734789 (1988-03-01), Smith et al.
patent: 4742373 (1988-05-01), Nakatani
patent: 4745433 (1988-05-01), Fujimura et al.
patent: 4752806 (1988-06-01), Haas et al.
patent: 4873552 (1989-10-01), Otsuki

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