Method for filtering and selecting geographical points of interest and mobile unit corresponding thereto

摘要

This invention relates to a method of and a mobile unit to providing audible information about at least one geographical point of interest using a mobile unit; the method comprising at least one iteration of steps of:
- establishing an observation using a geographic observation unit; the establishing comprising establishing a geographic point of observation using a geographic positioning unit and establishing a direction of observation using a geographic orientation unit;
- providing uncertainty data associated with the point of observation and/or the direction of observation;
- establishing a geographic field of observation that is bounded and extending from the geographic point of observation as a function of the uncertainty data and the direction of observation;
- providing a list of records of geographic points of interest as a function of the geographic field of observation, which list of records of geographic points of interest has at least one geographic point of interest record
- creating a filtered list of points of interest by excluding geographic points of interest that only have a certain percentage of their physical extent within the geographic field of observation; and
- providing audible point of interest information associated with points of interest in the filtered list of point of interest.