Electronic navigation system and method

A method of efficiently transmitting routing directions and driving actions, said method comprising the steps of:

• (a) generating a routing direction and a driving action for a user;
• (b) expressing the routing direction and the driving action in at least one of a plurality of tokenized forms, each of said plurality of tokenized forms representing a pre-defined routing direction and driving action in compact form;
• (c) electromagnetically transmitting said at least one of said plurality of tokenized forms to a remote unit;
• (d) receiving said at least one of said plurality of tokenized forms at said remote unit;
• and
• (e) at said remote unit, expanding said at least one of said plurality of tokenized forms received in step (d) into a textual driving instruction indicating what direction a vehicle should proceed at an intersection and what additional driving action should be taken, for display to a user at said remote unit.

A system for generating and transmitting route directions in a compact form, comprising:

• (a) a base unit which
• (i) generates a first set of maneuver arms for providing a gaphical representation of a calculated route to be taken by a vehicle through an intersection and geometric representations of a plurality of segments of roads to be traveled about an intersection along the route, wherein the intersection is an origin and said representations of each of said plurality of segments of roads starts at the origin and radiates outward to an endpoint Xi, Yi to approximate the angles at which the roads approach the intersections, to depict a first intersection on a display, each maneuver arm of the first set of maneuver arms being represented by at least one endpoint,
• (ii) generates a second set of maneuver arms to depict a second intersection on a display, each maneuver arm of the second set of maneuver arms being represented by at least one endpoint, and
• (iii) compares the proximity of the first intersection and the second intersection and, if the first intersection and the second intersection are within a predetermined range of each other, combines the first set of maneuver arms with the second set of maneuver arms to produce a combined set of endpoints to depict the first set of maneuver arms and the second set of maneuver arms on a common display;
• and
• (b) a communications link to transmit the combined set of endpoints to a remote unit in electromagnetic form.

A system for generating and transmitting routing directions comprising:

• (a) a base unit which
• (i) generates a routing direction and driving action for a user and
• (ii) expresses the routing direction and driving action in at least one of a plurality of tokenized forms, each of said plurality of tokenized forms representing a pre-defined routing direction and driving action in compact form;
• (b) a communications link to electromagnetically transmit said at least one of said plurality of tokenized forms;
• and
• (c) a remote unit which
• (i) receives said at least one of said plurality of tokenized forms from the communications link, and
• (ii) expands said at least one of said plurality of tokenized forms into a textual driving instruction indicating what direction a vehicle should proceed at an intersection and what additional driving action should be taken, for communication to a user at said remote unit.

A method of efficiently transmitting routing directions and driving actions, said method comprising the steps of:

• (a) generating a routing direction and driving action for a user;
• (b) expressing the routing direction and driving action in at least one of a plurality of tokenized forms, each of said plurality of tokenized forms representing a pre-defined routing direction and driving action in compact form;
• (c) electromagnetically transmitting said at least one of said plurality of tokenized forms to a remote unit;
• (d) receiving said at least one of said plurality of tokenized forms at said remote unit;
• and
• (e) at said remote unit, expanding said at least one of said plurality of tokenized forms received in step (d) into a textual driving instruction indicating what direction a vehicle should proceed at an intersection and what additional driving action should be taken, for annunciation to a user at said remote unit.