DRIVING METHOD OF GLOBAL POSITIONING SYSTEM USING SHORT-RANGE COMMUNICATION

• US 20090180519A1
• Filed: 01/16/2009
• Published: 07/16/2009
• Est. Priority Date: 01/18/2008
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Kim, Wan-Jin, LEE, Sung-Hwan, Jeong, Min-Seop
• Granted Patent: US 8,243,771 B2
• Time in Patent Office: Days
• US Class Current: 375/130
• CPC Class Codes: G01S 19/05 providing aiding data
• CPC Class Codes: H04B 1/713 using frequency hopping
• CPC Class Codes: H04B 2201/70715 with application-specific features
• CPC Class Codes: H04W 64/00 Locating users or terminals or network equipment for network management purposes, e.g. mobility management
• CPC Class Codes: H04W 84/06 Airborne or Satellite Networks space-based or airborne stations H04B7/185
• CPC Class Codes: H04W 84/18 Self-organising networks, e.g. ad-hoc networks or sensor networks

Abstract

A global positioning system using Bluetooth technology, including: a first Bluetooth master that receives satellite orbit information; a Bluetooth slave that communicates with the first Bluetooth master in a Bluetooth protocol; and a second Bluetooth master that transmits an inquiry code for communication with the Bluetooth slave in the Bluetooth protocol. The second Bluetooth master provides positioning information by requesting the satellite orbit information from the first Bluetooth master through the Bluetooth slave and transmitting the satellite orbit information to the second Bluetooth master through the Bluetooth slave.

Claims

1. A driving method of a global positioning system having:

a first Bluetooth master to receive satellite orbit information;

a Bluetooth slave to communicate with the first Bluetooth master in a Bluetooth protocol; and

a second Bluetooth master to transmit an inquiry code for communication with the Bluetooth slave in the Bluetooth protocol, the method comprising;

requesting the satellite orbit information from the first Bluetooth master through the Bluetooth slave; and

transmitting the satellite orbit information to the second Bluetooth master through the Bluetooth slave.

2. The method as set forth in claim 1, wherein the second Bluetooth master is used to search for the Bluetooth slave, which is capable of receiving a satellite signal, by means of the inquiry code.

3. The method as set forth in claim 1, wherein the Bluetooth slave is already connected to the first Bluetooth master before communicating with the second Bluetooth master.

4. The method as set forth in claim 1, wherein the first Bluetooth master comprises a satellite receiver.

5. The method as set forth in claim 4, wherein the first Bluetooth master receives the satellite orbit information through the satellite receiver.

6. The method as set forth in claim 1, wherein the satellite orbit information includes information received within 4 hours.

7. The method as set forth in claim 1, wherein the second Bluetooth master comprises a satellite receiver.

8. The method as set forth in claim 7, wherein the satellite receiver can be operated in cold and hot start modes.

9. The method as set forth in claim 8, wherein the satellite receiver operates in the hot start mode by means of the satellite orbit information received from the first Bluetooth master.

10. The method as set forth in claim 1, wherein the Bluetooth protocol includes Bluetooth 2.1.

11. A method of operating a global positioning system (GPS), comprising:

requesting readily available satellite orbit information through a Bluetooth slave upon powering up of a Bluetooth master; and

accessing the readily available satellite orbit information from a second Bluetooth master by the Bluetooth slave and transmitting the accessed readily available satellite orbit information to the powering up Bluetooth master.

12. The method as set forth in claim 11, wherein the second Bluetooth master receives the readily available satellite orbit information through a satellite antenna.

13. The method as set forth in claim 11, wherein the requesting the readily available satellite orbit information is performed by transmitting an ID packet to the Bluetooth slave by means of a dedicated inquiry access code (DIAC).