Navigational information indicator for supplying a vehicle drive

Details Navigational information indicator for supplying a vehicle drive Navigational information indicator for supplying a vehicle drive

1979-01-24

1980-12-30

Krass, Errol A.

Boots, shoes, and leggings

340 24, 340 73, 364444, G06F 1550

Patent

active

042427312

ABSTRACT:
A navigational information indicator for supplying a vehicle driver with make-turn instructions comprises a first memory for storing each information indicative of each distance travelled by the vehicle as far as a point at which a turn is made, a second memory for storing each information indicative of the direction of each turn, and a display circuit for displaying a directional sign. When the vehicle travels from a first point toward a second point, the distances and directions of turns are respectively stored in the first and second memories in a sequence and these pieces of information are read out in the reverse sequence when the vehicle travels back to the first point from the second point along the same route. The stored information is read out to display each directional sign so as to supply the vehicle driver with make-turn instructions along the return trip.

REFERENCES:
patent: 3824534 (1974-07-01), Straumsnes
patent: 3845289 (1974-10-01), French
patent: 3925641 (1975-12-01), Kashio

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