초록 ▼

Data for a map of a predetermined area is divided into a plurality of blocks, stored in an external memory medium such as a cassette tape, and loaded into a CPU when deemed necessary. The map as a whole or parts of the map can be arbitrarily selected and displayed through the operation of a keyboard

Data for a map of a predetermined area is divided into a plurality of blocks, stored in an external memory medium such as a cassette tape, and loaded into a CPU when deemed necessary. The map as a whole or parts of the map can be arbitrarily selected and displayed through the operation of a keyboard, and vocal sight-seeing guidances corresponding to the displayed maps are simultaneously produced. Control of this multiple map system is effected by an electronic device having a microprocessor, and selected maps and necessary words are shown in displayed pictures by a display means, such as a cathode ray tube or the like.

대표청구항 ▼

A system for selectively producing visual and audio information relating to at least one geographical map, comprising: a magnetic tape disposed in a standard cassette enclosure, said tape having serially stored thereon (a) digital signals representing images of plural distinct geographical maps, (b)

A system for selectively producing visual and audio information relating to at least one geographical map, comprising: a magnetic tape disposed in a standard cassette enclosure, said tape having serially stored thereon (a) digital signals representing images of plural distinct geographical maps, (b) digital signals representing an image of predetermined designations of each of said maps, and (c) analog signals representing sounds associated with said images, said analog signals being physically stored on said tape in proximity to the digital signals representing images associated therewith; means for automatically locating a first position on said tape at which said digital signals representing said image of said predetermined designations are stored, and for automatically locating a second position on said tape at which said digital signals representing the image of a selected geographical map are stored; means for reading said digital signals representing said image of said predetermined designations from said tape beginning at said first located position, and for reading said digital signals representing the image of said selected map and said analog signals representing sounds associated with the image of said selected map from said tape beginning at said second located position; means for visually displaying the image of said predetermined designations in response to said digital signals read by said reading means, and for visually displaying the image of said selected map in response to said digital signals read by said reading means; means for generating sounds in response to said analog signals read by said reading means; and control means for selecting one of said predetermined designations in response to the image of said predetermined designations produced by said display means, and for controlling said locating means to locate the position on said tape at which said digital signals representing the image of the geographical map designated by said selected designation are stored.