REFRESHING METHOD OF BACKGROUND SIGNAL AND DEVICE FOR APPLYING THE METHOD

摘要

A refreshing method of background signal for a device includes: obtaining one or more touched coordinate pair; obtaining a refreshing area according to the touched coordinate pair, an extension parameter, and a measuring breadth; and refreshing a background signal of the refreshing area. The refreshing area is determined by extending a distance of measuring breadth from a center point corresponding to the touched coordinate pair along the orthogonal directions. Accordingly, the refreshing area is sufficient to address the situation where the user draws a line continuously from the touched coordinate pair if the measuring breadth is determined properly. Therefore, the method may satisfy the needs of the user and reduce the refreshing time of an active area of the device. In addition, a device for applying the method is provided as well.

主权项

1. A refreshing method of background signal, applicable to a sensing device capable of receiving positional information, comprising:
obtaining the positional information; obtaining a refreshing area based on the positional information, an extension parameter, and a measuring breadth; and refreshing a background signal of the refreshing area.