Appeal No. 1997-0384
Application 08/086,498
As further discussed, infra, we find that the applied
references to Tsunoda and Hilsum, whether taken singly or in
combination, fail to teach or suggest at least the feature of
blanking during scrolling for a time proportional to a decay
rate
of the display as defined in each of independent claims 1 and
18 on appeal.
Representative independent claim 1 is reproduced below:1
1. A display circuit for scrolling information image
frames across a display area having a first end and a second
end such that message images move across the display area, the
first and second ends on opposite ends of the display area,
the display circuit comprising:
a liquid crystal display element having a persistent
display screen including the display area to display the
information image frames thereupon, the persistent display
screen having an associated image decay rate;
a display signal generator coupled to the display element
to generate display signals which cause the display element to
sequentially display in the display area a plurality of
information image frames which are periodically moved a
1We note that the bracketed and underlined changes made in
representative claim 1 are included herein so as to best demonstrate our
understanding of what is being claimed as it is described in appellants’
specification. Our understanding of what is being claimed is that no
information image is being displayed at the display element during the
blanking interval.
3
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