Angular and positional dependent vector display
AssigneeHoneywell International Inc.
InventorsThomas Odegard, Steven Sanderson
Life of this patent
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Abstract
A method for using an algorithm for autonomous, real-time computation of the inserted delays between successive calligraphic or stroke type vectors that optimizes both image quality and performance for systems that generate stroke video for cathode ray tube (CRT) type displays. The algorithm operates on parameters for vector angular change screen position, and stroke write rate or clock rate to determine an inner-vector delay and to optimize the image quality of the resulting vector graphics display. The algorithm can be implemented at a rudimentary level of the system level architecture and eliminates much of the tedious, manual effort associated with image quality optimization typically dictated by a vector display system.
Claims18
A method of automatically inserting a delay between vectors of a stroke graphics driven CRT display, the method comprising the steps of:
- a) calculating an angular change between the vectors;
- b) determining a positional placement of a vector intersection of the vectors;
- c) determining a vector write rate;
- d) calculating the delay based on the calculated angular change 85, the determined positional placement 130 and the determined vector write rate;
- and
- e) inserting the calculated delay between the vectors.
A method of automatically inserting a delay between vectors based on an angular change between the vectors of a stroke graphics driven CRT display, the method comprising the steps of:
- a) calculating an angular change between the vectors;
- b) calculating the delay based on the calculated angular change;
- and
- c) inserting the calculated delay between the vectors.
A method of automatically inserting a delay between vectors based on an absolute positional placement of a vector intersection of the vectors of a stroke graphics driven CRT display, the method comprising the steps of:
- a) determining the absolute positional placement of the vector intersection of the vectors;
- b) calculating the delay based on the determined positional placement 130;
- and
- c) inserting the calculated delay between the vectors.
An apparatus for automatically inserting a delay between vectors of a stroke graphics driven CRT display comprising:
- a means for calculating an angular change between the vectors;
- a means for determining a positional placement of a vector intersection of the vectors;
- a means for determining a vector write rate;
- a means for calculating the delay based on the calculated angular change, the determined positional placement and the determined vector write rate;
- and
- a means for inserting the calculated delay between the vectors.
Dependencies are inferred from the claim text.