Digitizing method and apparatus for compensating cursor of stylus velocity errors

摘要: A digitizer measuring abscissas and ordinates at separate times compensates these coordinates for errors created by cursor or stylus motion during the digitizing process. At highest level of operation this is achieved altering coordinate measurement sequence to be abscissa, ordinate, then associating ordinate with average two abscissas. Two separated an intervening abscissa could used as well. a lower similar alteration in procedure allows correction determination coarse values from pairs fine X' X" Y' Y" application principle vernier. When present pair do not correspond same point. This overcome X', X", find X value. The done Y', Y