Abstract: An electronic device including a touch-enabled display module configured to display a plurality of windows according to a multi-window mode; and a control module configured to displaying on the touch screen a first application window and a second application window according to the multi-window mode, alter the first application window in response to a touchscreen input received via the touch-enabled display, and automatically alter the second application window in response to the alteration of the first application window.

Abstract: An automatic transmission includes an input shaft; a hub housing; a first clutch; a planetary gear portion; and a second clutch. A locking gap of the first clutch is formed to be greater than a locking gap of the second clutch. When the hub housing is rotated in the reverse direction, the sun gear is rotated in the forward direction, the second clutch is first released before the first clutch is locked, so that the hub housing is rotated in the reverse direction and is capable of moving backward.

Abstract: An automatic transmission includes: an input shaft that is rotatably installed on a fixing shaft; a hub housing into which the input shaft is inserted; a first clutch, of which one side is installed on the input shaft and the other side is installed at the hub housing; a planetary gear portion including a carrier having a satellite gear that is engaged between a ring gear formed on inner walls of the hub housing and a linear gear formed on the input shaft; and a second clutch, of which one side is installed on the planetary gear portion and the other side is installed on the hub housing, wherein the first clutch and the second clutch include one-direction clutches that are locked in opposite directions, and when the hub housing is rotated in a reverse direction, the second clutch is released prior to the first clutch.