US patent 등록 “User input method for use in portable device using virtual input area”, US 9727131
User input method for use in portable device using virtual input area Patent number: 9727131 Abstract: A portable device and user input method of the portable device using a virtual input area is provided. The portable device may include a sensor configured to sense a user input to an input area, the input area being at least… 더 보기 »US patent 등록 “User input method for use in portable device using virtual input area”, US 9727131