Car navigation aid on-board receiver

Abstract

Abstract The receiver is intended to receive, via transmitters and a special broadcast channel, coded messages containing at least locations of problems of a finite series of locations placed in memory (11) in the receiver and comprising means (32) for decoding of messages and means (8-12, 2) of restoration of the latter into a form accessible to a motorist. The receiver also comprises a memory (11) for storage of pixels representing road maps, means (8) of display of portions of these maps on a visual display terminal (2) and means (8) of graphical restoration of the locations of problems from the messages on the terminal (2). When a traffic problem produces its effects on a section of road between two points, this section is shown up on a portion of a displayed map by substitution, for the pixels of the section, of pixels of a particular colour. <IMAGE>

Inventors

• 👤 Jean Babsky
• 👤 François Millet

Bibliographic Details