US006140943A [ii] Patent Number: [45] Date of Patent:
[54] ELECTRONIC WIRELESS NAVIGATION SYSTEM
[76] Inventor: Alfred B. Levine, P.O. Box 34-1738, Bethesda, Md. 20827
[21] Appl. No.: 09/372,573 [22] Filed: Aug. 12, 1999
[51] Int. C I. G08G 25/36
[52] U.S. CI 340/995; 340/991; 340/990;
340/928; 340/988; 340/905; 364/449; 364/444
[58] Field of Search 340/995, 991,
340/990, 928, 988, 905; 701/221, 207;
364/449, 449.6, 444
[56] References Cited
U.S. PATENT DOCUMENTS
5,179,519 1/1993 Adachi et al 364/449
5,689,252 11/1997 Ayanonglu et al 340/991
5,699,056 12/1997 Yoshida 340/905
5,699,255 12/1997 Ellis et al 364/449.6
5,739,772 4/1998 Nanba et al 340/990
5,774,830 6/1998 Tsuji 701/213
5,831,552 11/1998 Sogawa et al 340/995
5,864,305 1/1999 Rosenquist 340/905
Primary Examiner—Daniel J. Wu
Assistant Examiner—Tai T. Nguyen
[57] ABSTRACT
An electronic navigation system using wirelessly tranmitted video map images from one or more ground based tranmitters together with wireless receivers having visual display available to travelers, for receiving and displaying the video map images. In one embodiment a cellular system is provided using video map images covering different zones or cells ol a city or other community. GPS reception is combined to additionally provide location, direction, and speed parameters on the received video maps. Transmitted video image information may also include names of streets, roads, as well as places of interest and to obtain service and assistance in emergencies. Interactive controls are provided as supplements to assist travelers in obtaining specific information as well as additional information.
19 Claims, 4 Drawing Sheets
