Abstract: A method for operating an electronic device is provided. Aspects include configuring a touch slop corresponding to a reference for performing a scroll in response to detection of a first touch event and acquiring touch information corresponding to a current touch point every predetermined time while the first touch event is maintained. Based on a determination that a touch movement distance exceeds the touch slop, based on the acquired touch information, aspects include initiating a scroll for a first screen displayed on the display module. Aspects further include identifying scroll data comprising at least one of a movement speed, a movement distance, and deceleration of the first touch event, based on the touch information acquired while the scroll is performed and determining whether to end the scroll, based on the scroll data to control a state of the scroll for the first screen.

Abstract: The present disclosure relates to a method of shifting content on a display of an electronic device. In one embodiment, the method includes displaying the content, setting a first coordinate value for a touch as a reference point, setting at least one shift direction determination area based on the reference point, identifying a second coordinate value for the touch, setting the direction in which the content is to be shifted based on the shift direction determination area and the second coordinate value, and shifting the content in the set shift direction. Other embodiments are possible.

Abstract: The present disclosure relates to a method of shifting content on a display of an electronic device. In one embodiment, the method includes displaying the content, setting a first coordinate value for a touch as a reference point, setting at least one shift direction determination area based on the reference point, identifying a second coordinate value for the touch, setting the direction in which the content is to be shifted based on the shift direction determination area and the second coordinate value, and shifting the content in the set shift direction. Other embodiments are possible.

Abstract: Provided are a tag estimation method and a tag identification method using the same in a RFID system. In the tag estimating method, a reader divides tags in an identifiable area into a predetermined number of groups. Tags are identified by applying a pilot frame Lp to a first group among the divided groups. The reader calculates a collision probability Pcoll of tags after the pilot frame ends. Then, unidentified tags of the first group, which are not identified for the pilot frame, are identified by allocating an additional pilot slot Ladd at an end of the pilot frame or generating a new frame L1 according to the collision probability Pcoll.

Abstract: Provided are a tag estimation method and a tag identification method using the same in a RFID system. In the tag estimating method, a reader divides tags in an identifiable area into a predetermined number of groups. Tags are identified by applying a pilot frame Lp to a first group among the divided groups. The reader calculates a collision probability Pcoll of tags after the pilot frame ends. Then, unidentified tags of the first group, which are not identified for the pilot frame, are identified by allocating an additional pilot slot Ladd at an end of the pilot frame or generating a new frame L1 according to the collision probability Pcoll.