Multi‐touch detector architecture based on efficient buffering of intensities and labels

This Letter presents a multi‐touch detector architecture incorporating an efficient buffering scheme. Most of the power consumption in a detector is originated from the intensive use of buffers that necessitate dual‐port memories. To alleviate the silicon area and the power consumption, the author scrutinises and manipulates the pattern of requests made to the buffers. More specifically, two consecutive requests are rescheduled to be processed at once, and the buffers and the surrounding circuits are modified accordingly. As a result, only one request is made to a buffer at a time, and the dual‐port memories are substituted with the single‐port counterparts. Implementation results demonstrate that the proposed architecture can diminish the silicon area by 36% and the power consumption by 17% compared with the state‐of‐the‐art one.