FIELD: physics; measurement.
SUBSTANCE: invention relates to portable navigation systems particularly for installation in an automobile. The portable personal navigation device is programmed with possibility of linking any function, related to a basic set of functions, with a non-overlapping input sensory area, which is sufficiently large for reliable activation by touching with a finger. The invention is based on understanding that, a set of basic functions can be identified, and can then be reliably selected/activated by touching the input sensory area with a finger, where the input sensory area is sufficiently large for reliable activation. This is especially preferable for a navigation device installed in an automobile, in which the basic functions are those functions which are likely to be activated by the driver when driving the automobile.
EFFECT: design of a portable navigation device with a non-overlapping input sensory area, which is sufficiently large for reliable activation by touching with a finger.
18 cl, 4 dwg
