Implementation of chapter 4 using 9 memories in car navigation system

摘要

[0001] The present invention relates to a method for implementing a car navigation system using four memories in a car navigation system. In general, a car navigation system reads four map data on a four-memory memory, The scroll speed is reduced due to copying time since the basic map must be copied even if scrolling a little. Therefore, the present invention can use the remaining memory after reading 4 maps by using memory, When scrolling, there is no need to copy, so the scrolling speed is increased.