METHOD AND DEVICE INCLUDING A MAP MEDIUM FOR CORRECTING NAVIGATION INFORMATION

• US 20070233366A1
• Filed: 03/30/2007
• Published: 10/04/2007
• Est. Priority Date: 04/04/2006
• Status: Abandoned Application

• Current Assignee: MiTAC International Corporation (MiTAC Holdings Corp.)
• Original Assignee: MiTAC International Corporation (MiTAC Holdings Corp.)
• Inventors: Lin, Ping-Chih
• Application Number:
  US11/694,271
• Publication Number:
  US 20070233366A1
• Time in Patent Office: Days
• US Class Current: 701/207
• CPC Class Codes: G01C 21/30 Map- or contour-matching
• CPC Class Codes: G01C 21/3446 Details of route searching algorithms, e.g. Dijkstra, A*, arc-flags, using precalculated routes
• CPC Class Codes: G01S 19/47 the supplementary measurement being an inertial measurement, e.g. tightly coupled inertial
• CPC Class Codes: G09B 29/106 using electronic means

Abstract

A method and device including a map medium for correcting navigation information is described. The method includes the following steps: receiving a height varying signal; receiving a plane coordinate; comparing identification information with the height varying signal, the identification information predefined to represent adjacent roads on different planes in a map medium; and outputting an identification result according to the comparing result.

Claims

1. A method for correcting navigation information, comprising the steps of:

receiving a height varying signal;

receiving a plane coordinate;

comparing identification information with the height varying signal, the identification information predefined to represent adjacent roads on different planes in a map medium; and

outputting an identification result according to the comparing result.

2. The method of claim 1, wherein the identification result is a notice message.

3. The method of claim 1, further comprising a step of receiving a starting coordinate and an end coordinate from the map medium and planning a first navigation path before the step of receiving the height varying signal and the plane coordinate.

4. The method of claim 3, wherein the identification result is a second navigation path achieved from the plane coordinate and a road corresponding to the identification result.

5. The method of claim 4, wherein the step of receiving the plane coordinate comprising:

reading a satellite signal;

computing a longitude value and a latitude value from the satellite signal; and

achieving the plane coordinate from the longitude value and the latitude value.

6. The method of claim 5, wherein the step of receiving the height varying signal comprising:

reading an acceleration signal; and

achieving the height varying signal according to the acceleration signal.

7. A device for correcting navigation information, comprising:

an acceleration sensor generating an acceleration signal;

a processing unit receiving the acceleration signal and outputting a height varying signal;

a storage unit storing a map medium including an identification information predefined to represent adjacent roads on different planes in the map medium; and

a display unit showing a map screen according to the map medium.

8. The device of claim 7, further comprising a satellite signal receiver receiving and transmitting a satellite signal to the processing unit to output a plane coordinate.

9. The device of claim 8, wherein the processing unit achieving a location mark in the map according to the plane coordinate.

10. The device of claim 9, wherein the location mark is achieved from the plane coordinate and the identification information corresponding to the height varying signal, the location mark is displayed at a road in the map with the identification information.

11. The device of claim 9, wherein the processing unit displaying a navigation path at a road in the map with the identification information according to the plane coordinate and the identification information corresponding to the height varying signal.

12. A map medium used for a satellite navigator comprising:

a plurality of maps; and

identification information predefined to represent adjacent roads on different planes in the map and supplied for comparing with a height varying signal.