Patent ID: 7831349
Filing Date: 2010-11-09
Classification: G01C

Abstract:
1. A method of controlling display luminosity according to an operational mode in a navigation system, comprising: determining whether a specific function button is selected from a plurality of function buttons, the plurality of function buttons corresponding to a respective plurality of operational modes of the navigation system, said plurality of operational modes including at least two of a communication mode, an audio mode, a video mode, or a peripheral illumination intensity adjustment mode; detecting a speed of a subject of the navigation system; and automatically adjusting a display luminosity based on the operational mode that corresponds to the selected button and the detected speed, the display luminosity adjusted to a first luminosity for a first one of said plurality of operational modes and to a second luminosity different from the first luminosity for a second one of said plurality of operational modes, the operational mode corresponding to the selected button being one of the first or second operational modes.