Navigation Device and Navigation Method Using the Same

• US 20090228208A1
• Filed: 02/20/2009
• Published: 09/10/2009
• Est. Priority Date: 03/07/2008
• Status: Abandoned Application

• Current Assignee: MStar Semiconductor Incorporated (MediaTek, Inc.)
• Original Assignee: MStar Semiconductor Incorporated (MediaTek, Inc.)
• Inventors: Yang, Shih-Chi
• Application Number:
  US12/389,852
• Publication Number:
  US 20090228208A1
• Time in Patent Office: Days
• US Class Current: 701/211
• CPC Class Codes: G01C 21/20 Instruments for performing navigational calculations G01C21/24, G01C21/26 take precedence
• CPC Class Codes: G01C 21/3632 Guidance using simplified or iconic instructions, e.g. using arrows G01C21/365 takes precedence

Abstract

A navigation device and a navigation method using the same are provided. The navigation device includes a storage unit, a positioning module, a first calculating unit and a display unit. The first calculating unit is coupled to the storage unit, and the display unit is coupled to the first calculating unit. The storage unit stores at least a set of theme information. The positioning module detects longitude and latitude information of a current location so as to generate geographic information. The first calculating unit generates an indication direction according to the geographic information, a reference direction, and the theme information without referencing map data. The display unit displays the indication direction.

Claims

1. A navigation device, comprising:

a storage unit, for storing at least one set of point of theme (POT) information;

a positioning module, for detecting longitude and latitude information of a current location so as to generate geographic information;

a first calculating unit, coupled to the storage unit, for generating an indication direction according to the geographic information, the POT information, and a reference direction without referencing map data; and

a display unit, coupled to the first calculating unit, for displaying the indication direction.

2. The navigation device as claimed in claim 1, wherein the display unit simultaneously displays the reference direction and the indication direction.

3. The navigation device as claimed in claim 1, wherein the map data includes street information of a current location of the navigation device.

4. The navigation device as claimed in claim 1, wherein the first calculating unit controls the positioning module so as to detect the set of geographic information.

5. The navigation device as claimed in claim 1, further comprising:

a second calculating unit, for controlling the positioning module so as to detect the set of geographic information.

6. The navigation device as claimed in claim 5, wherein the positioning module and the second calculating unit are realized using a Global Positioning System (GPS) chip.

7. The navigation device as claimed in claim 1, wherein the POT information comprises a POT name, and longitude and latitude information.

8. The navigation device as claimed in claim 1, further comprising:

a user interface circuit, for marking longitude and latitude information of a current location of the navigation device as the POT information.

9. The navigation device as claimed in claim 1, wherein the POT information is associated with a same theme.

10. A navigation method, comprising steps of:

providing at least one set of point of theme (POT) information;

detecting longitude and latitude information of a current location of a navigation device so as to generate geographic information;

generating an indication direction according to the geographic information, the set of POT information, and a reference direction without referencing map data; and

displaying the indication direction.

11. The navigation method as claimed in claim 10, wherein the reference direction and the indication direction are simultaneously displayed.

12. The navigation method as claimed in claim 10, being implemented in a navigation device, wherein the map data comprises street information of a current location of the navigation device.

13. The navigation method as claimed in claim 10, further comprising steps of:

generating a linear distance value according to the set of geographic information and the POT information; and

displaying the linear distance value.

14. The navigation method as claimed in claim 10, wherein the POT information includes a POT name, and longitude and latitude information.

15. The navigation method as claimed in claim 10, further comprising a step of:

generating an alert signal when situated near a predetermined POT.

16. The navigation method as claimed in claim 10, wherein the POT information is associated with a same theme.

17. A navigation method, comprising steps of:

providing a navigation device, a destination and a predetermined location, wherein the navigation device displays navigation information of the destination;

determining whether the navigation device approaches the predetermined location; and

generating an alert signal when the navigation device is situated within a predetermined range from the predetermined location.

18. The navigation method as claimed in claim 17, wherein the alert signal is displayed by a display unit of the navigation device.

19. The navigation method as claimed in claim 17, wherein the alert signal is played by an audio playing device of the navigation device.

20. The navigation method as claimed in claim 17, wherein the destination and the predetermined location are associated with a same theme.