Patent ID: 9632599
Date: 2017-04-25
CPC Classifications: G06F

Claim:
1. A capacitive position detection apparatus, comprising: (i) a sensor surface including a first set of conductors and a second set of conductors that intersect the first set of conductors, wherein the capacitive position detection apparatus, in operation, time-divisionally detects a finger and a pen-shaped position indicator, the capacitive position detection apparatus detecting the finger by supplying signals to the first set of conductors and receiving signals from the second set of conductors, and detecting the pen-shaped position indicator by receiving detection signals from the first and second sets of conductors, the detection signals being generated in the first and second sets of conductors in response to indication signals from the pen-shaped position indicator; and (ii) the pen-shaped position indicator including: a pen-shaped body having a pen-tip portion; a first electrode arranged at a first position of the pen-tip portion; a second electrode arranged at a second position of the pen-tip portion different from the first position; and a signal production circuit configured to supply first and second signals to the first and second electrodes, respectively, wherein the first and second signals are distinguishable from each other, wherein the first and second electrodes are configured to form first and second capacitive relationships with the sensor surface, respectively, to generate detection signals in the sensor surface based on which angle information of the pen-shaped position indicator is obtainable.