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Owing to charger noise, inaccurate touch points and fake touch points may happen so that a device has a wrong behavior. The intensity of charger noise could be much larger than that of original touch signals. Besides, the frequency of charger noise varies for each different charger. Therefore, industry identifies charger noise as the most difficult problem in capacitive touch applications. The solution...
Microcontrollers (MCUs) are extensively used in consumer devices for specific purposes because they are tiny, cheap, and low-power. Any time-consuming algorithm and any large-size program are not suited for MCUs. Recently, we found that the conventional multi-touch algorithm becomes computationally expensive to handle the applications of large-sized touch panels. Although a more high-end MCU can obtain...
As the techniques for manufacturing touch panels continue to advance, the more large-sized touch panels are being produced. However, the conventional multi-touch tracking algorithm becomes time-consuming to handle the applications of large-sized touch panels. In this paper, we employ advanced techniques, such as clustering and partitioning, to partition a large-sized tracking problem into smaller...
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