Patent ID: 7774135

Claim:
A program stored on a computer readable medium and having instructions for controlling an information processor, in a portable system, that displays a map image and point information, said program being executed by said information processor and configured to provide the map image display comprising: receiving a broadcast stream that includes a broadcast content having a commercial message; automatically extracting a character string from the broadcast stream; automatically identifying a matching keyword corresponding to the character string from a plurality of keywords provided in a keyword dictionary, the plurality of keywords respectively corresponding to businesses, such that a given business corresponds to the matched keyword; and upon automatically identifying the matching keyword: automatically searching for the given business in the direction of advancement of the portable system, the business associated with the commercial message; automatically identifying point information for a landmark associated with the given business; and automatically displaying the point information for the landmark superimposed on the map image such that the landmark for the given business is visually indicated on the map image, wherein the map image is displayed according to a navigational position of the portable system and the landmark is displayed in the direction of advancement of the portable system.