Photocopying – Projection printing and copying cameras – With cathode ray tube for light source
Patent
1989-05-08
1991-05-14
Hayes, Monroe H.
Photocopying
Projection printing and copying cameras
With cathode ray tube for light source
355 71, 355 81, G03B 2772, G03B 2780
Patent
active
050160400
ABSTRACT:
The present invention relates to a method and apparatus for reducing the effect of recording errors on images and information which are recorded in sections onto a recording medium. Recording errors can detract from the quality of a recording particularly at the boundaries of recorded sections. The present invention introduces a number of methods which reduce the effect of recording errors by distributing the errors smoothly over areas of the recording, by modifying the recording level near the section boundaries, by modifying the recording process near the section boundaries, by modifying the shape, size and orientation of the recorded sections, by varying the position of the transition point from one section to an adjacent section and by introducing an overlap region which allows the section boundary to be modified.
REFERENCES:
patent: 2960019 (1960-11-01), Craig
patent: 4025189 (1977-05-01), Pugsley
patent: 4093964 (1978-06-01), Aughton
patent: 4701045 (1987-10-01), Plummer
Hayes Monroe H.
Silhouette Technology Inc.
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