Apple is continuing to study ways in which users get physical feedback when painting on textured surfaces. A new Apple patent describes how real texture drawings are simulated with the tip of a stylus while providing haptic feedback.
In the U.S. patent no. 20190384402 patent, Apple says that when a force is used on the tip, the force sensing system can detect the movement of the tip relative to the housing, and the haptic feedback system can move the tip relative to the shell by sensing magnetic fields in magnetic elements connected to the tip of the pen and the housing.
Haptic feedback can be used to render texture sensations and simulate painting on real textured surfaces. The new patent application is similar to the 2015 patent application, and even uses the same drawings. It describes a stylus that provides haptic feedback. However, the 2019 patent specifically relates to a way to get a sense of authenticity by using the tip of the pen in this way.
When the 2015 patent was disclosed, the original Apple Pencil was months away from its release. Since then, it has undergone major changes, and the new patent suggests that Apple is looking to further develop the Apple Pencil design. Apple said in its patent filing that the improved stylus could provide haptic feedback at the tip of the pen when used to provide a specific sense of touch and texture, simulating patterning on textured surfaces.