US Patent 9977592 Touch rim control method and associated device

A portable device is provided. The portable device includes: a display; a controller, a processor, a housing, and a touch rim. The controller and the processor are installed inside the housing. The touch rim is configured to detect a gesture performed on the touch rim to generate at least one touch detection signal. The controller is configured to receive at least one detection signal from the touch rim, and to transmit the touch detection signal to the processor. The processor analyzes the touch detection signal to determine the gesture performed on the touch rim, and performs an operation associated with the gesture.