| 摘要 |
<P>PROBLEM TO BE SOLVED: To automatically change a volume of an in-cabin sound, in response to the presence of driver's acquaintance as much as possible. <P>SOLUTION: This car navigation system records a voice guide registration flag about a facility as a travel history, based on a threshold value frequency or more of use of the facility, and conducts a voice guide in sections 37a, 37b by a simple voice guide, when the facility turning the voice guide registration flag on exists in the sections in a guide route. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
