Appeal No. 96-2044
Application 07/530,030
problems associated with the “winding-up” process wherein a graph display which has reached the end
of a display screen is caused to shift leftwardly (jump-back) along a time axis. In order to prevent the
quick jump-back operation which obstructs an operator’s observation of the graph, the instant
invention allows the graph to be moved back toward the center of the screen at a speed and a manner
that can be followed by an operator using successive displays of transient graphs during the jump-back
operation when the end of the graph reaches the end of the graph display area.
Representative independent claim 1 is reproduced as follows:
1. A graph displaying method for sequentially displaying data representative of quantity varying
with time on a display screen, the method comprising the steps of:
inputting data representative of levels of quantity varying with time as a succession of graph
points;
sequentially displaying said succession of graph points on a display screen from one end of the
display screen toward the other end of the display screen as a graph;
automatically moving the graph to a predetermined position toward the one end of the display
screen at a speed which can be followed by the operator's eye, by sequentially displaying transient
graphs between the other end of the display screen and the predetermined position, when the
succession of graph points reaches the end of a graph display area on the display screen; and
displaying a additional succession of graph points, one graph point at a tim [sic] at a leading end
of the graph.
The examiner relies on the following references:
Mahler 4,233,631 Nov. 11, 1980
Schlater 4,829,293 May 9, 1989
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