Patent ID: 9459716
Filing Date: 2016-10-04
CPC Classification: G06F,G07C

Claim Text:
1. A device having a touch panel, comprising: a detector configured to detect a first touch and a second touch concurrent with the first touch on a display screen, detect a period of time that the display screen is touched during the first and second touches, and detect changes of position of the first and second touches; a controller configured to determine a first display mark mode corresponding to the first touch, and to determine a second display mark mode corresponding to the second touch, different from the first display mark mode, after the detector detects the second touch; and a display unit configured to display, on the display screen, respective touch-detected marks based on a corresponding one of the first display mark mode and the second display mark mode at a position around each of the first and second touches, wherein the detector is able to detect that a predetermined touch operation is performed based at least on an order of the touches, and the controller changes a display mode of the touch-detected marks according to the content of the touch operation.