Method for processing of key release event in remote controller, remote controller and remote controlled apparatus for the same

A method for processing a key release event, a remote controller for the same, and a remote controlled device for the same are provided to minimize errors for a point of time to execute an operation corresponding to a key release event by processing key release events according to idle frames without waiting until the next press frame is received. A remote controller(100) comprises a key input part(110), a sensor part(120), a signal generation part(130), and a signal output part(140). The key input part(110) has a plurality of key buttons. The sensor part(120) detects a key press state and outputs a signal. The signal generation part(130) generates a press frame or an idle frame according to a signal outputted from the sensor part(120). The signal output part(140) transmits the press frame or the idle frame, generated from the signal generation part(130), to a remote controlled device through a one-way communication network.