| 摘要 |
A circuit for controlling a differential touch sensing system is disclosed. The control circuit includes: a labeling unit which performs a labeling process of converting a differential value into a labeling value; a palm region detecting unit which detects a palm region by scanning a change in the labeling value; a forgotten operation unit which performs forgotten operation including a first operation of setting a forgotten count value to unit blocks corresponding to the palm region, and a second operation, and a second operation of updating the forgotten count value of the unit blocks defined as an extended palm region in a previous frame in a region beyond the palm region; and a palm region extending unit which defines the unit blocks having the forgotten count value as the extended palm region. |
