Patent ID: 6137474
Filing Date: 2000-10-24
Classification: G06F

Abstract:
A coordinate input apparatus, comprising:a stick-type operation section having a cursor motion operating function and a switch operating function;operating force sensors operative to detect operational loads in the X and Y directions when said stick-type operation section is operated and output the detected operational loads as load data, the operating force sensors intersecting at right angles to each other;a coordinate computation section operative to compute the amount of cursor movement in the X and Y directions corresponding to the magnitude of the operational load from said load data;a storage section for storing the load data outputted from the operating force sensors;a peak value detection section operative to calculate the peak value of each of the load data stored in said storage section;a time measurement section operative to measure a threshold-value exceeding time during which each of said stored load data continuously exceeds a threshold value;an inclination computation section operative to compute the value of a load change inclination per unit time on the basis of said stored load data; andan operation determination section operative to determine a cursor moving operation or a switching operation of said stick-type operation section on the basis of:comparison between the peak value computed by said peak value detection section and a preset load value;the threshold-value exceeding time measured by said time measurement section; andcomparison between a maximum value of the load variation inclination value computed by said inclination computation section and a preset inclination value.