Patent ID: 8782520

Claim:
A method for differentiating haptic feelings of a selection menu using a rotary switch, the method comprising the steps of: expressing the haptic feelings by vibration and resistance against turning the rotary switch at different strengths when a user, selects from a variety of menus while scroll-manipulating the rotary switch to implement various kinds of functions of an electronic product, selects items from a main menu, transits a rotary switch menu from the main menu to a lower menu or from the lower menu to the main menu, and selects items from the lower menu, wherein a haptic feeling strength when the rotary switch menu is transited from the main menu to the lower menu or from the lower menu to the main menu is set to be greater than a haptic feeling strength when the items of the main menu and the lower menu are scrolled, the haptic feeling strength by the main menu and the lower menu is adjusted to be set to a strong feeling, a normal feeling, and a mild feeling based on a user selection mode, and each of the strong feeling, the normal feeling, and the mild feeling is set to be divided into three groups of: first users including general men, second users including middle-aged and elderly men, and third users including women.