United States Patent [19] [li] Patent Number: 4,631,678
Angermiiller et al. [45] Date of Patent: Dec. 23,1986
[54] INFORMATION INPUT
[75] Inventors: Helmut Angermiiller, Frankfurt am Main; Giinther Hahlganss, Kriftel, both of Fed. Rep. of Germany
[73] Assignee: VDO Adolf Schindling AG, Frankfurt am Main, Fed. Rep. of Germany
[21] Appl. No.: 612,102
[22] Filed: May 18,1984
[30] Foreign Application Priority Data
May 27, 1983 [DE] Fed. Rep. of Germany 3319224
[51] Int. Q.4 G06F 15/50
[52] U.S. a 364/424; 364/449;
340/995; 340/988
[58] Field of Search 364/424, 436, 444, 449,
364/450; 340/988, 995; 73/178 R
[56] References Cited
U.S. PATENT DOCUMENTS
3,824,534 7/1974 Straumsnes 340/988
4,357,593 11/1982 Tomkerwitsch 340/988
4,494,201 1/1985 Raymond et al 364/449
4,528,552 7/1985 Moriyama et al 340/995
FOREIGN PATENT DOCUMENTS
0034993 9/1981 European Pat. Off. 340/955
0057032 8/1982 European Pat. Off. 73/178 R
2938483 4/1981 Fed. Rep. of Germany .... 73/178 R
2125233 8/1982 Fed. Rep. of Germany .... 73/178 R
Primary Examiner—Parshotam S. Lall
Attorney, Agent, or Firm—Martin A. Farber
[57] ABSTRACT
The invention relates to an information input for a navigation device for highway vehicles in connection with which map markings which represent optically readable information and can be read by a reading device and fed to a data processing unit of the navigation device can be associated with a map, in particular a road map. A mark 6 can be associated with a starting or target point on the map and optically readable location markings 2 and 3 can be read by the reading device in the associated position of the mark 6 to the starting or target point.
22 Claims, 6 Drawing Figures
