초록 ▼

A portable map display apparatus stores, in a memory, features of a plurality of points on a given map and features of routes connecting such points and, on receiving input signals concerning a given point of start and a given destination, sequentially displays, on an output device, the information

A portable map display apparatus stores, in a memory, features of a plurality of points on a given map and features of routes connecting such points and, on receiving input signals concerning a given point of start and a given destination, sequentially displays, on an output device, the information on the optimum route to be followed in reaching the destination from the point of start.

대표청구항 ▼

A portable map display apparatus, comprising: memory means for storing therein (a) a multiplicity of specific point locations within a predetermined geographical region, (b) substantially fixed, non-variable topographical features characteristic of said multiplicity of specific point locations withi

A portable map display apparatus, comprising: memory means for storing therein (a) a multiplicity of specific point locations within a predetermined geographical region, (b) substantially fixed, non-variable topographical features characteristic of said multiplicity of specific point locations within said predetermined geographical region, and (c) substantially fixed, non-variable topographical features characteristic of a plurality of different routes interconnecting said multiplicity of specific point locations within said predetermined geographical region; means for selectively inputting into said apparatus predetermined criteria by means of which an optimum route of travel can be determined, from said plurality of different routes interconnecting said multiplicity of specific point locations within said predetermined geographical region, between a predetermined point of start within said predetermined geographical region as selected from said multiplicity of specific point locations within said predetermined geographical region and a predetermined point of destination within said predetermined geographical region as selected from said multiplicity of specific point locations within said predetermined geographical region; optimum route determination means for determining said optimum route of travel, between said selected predetermined point of start and said selected predetermined point of destination, as dictated by said substantially fixed, non-variable topographical features characteristic of said multiplicity of specific point locations, and said substantially fixed, non-variable topographical features characteristic of said plurality of different routes interconnecting said multiplicity of specific point locations, within said predetermined geographical region, and in response to said selected predetermined criteria inputted into said apparatus; and means for displaying information characteristic of said optimum route, determined by said apparatus, defined between said selected predetermined point of start and said selected predetermined point of destination.