Driving method of global positioning system using short-range communication

• US 8,243,771 B2
• Filed: 01/16/2009
• Issued: 08/14/2012
• Est. Priority Date: 01/18/2008
• Status: Expired due to Fees

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Kim, Wan-Jin, Jeong, Min-Seop, Lee, Sung-Hwan
• Primary Examiner(s): Liu, Shuwang
• Assistant Examiner(s): Bolourchi, Nader
• Application Number:
  US12/354,846
• Publication Number:
  US 20090180519A1
• Time in Patent Office: 1,306 Days
• Field of Search: 375/130, 375/132
• 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;

establishing a connection via the Bluetooth protocol between the first Bluetooth master and the Bluetooth slave;

transmitting, by the second Bluetooth master, the inquiry code to the Bluetooth slave to determine if the Bluetooth slave is capable of receiving the satellite orbit information from the first Bluetooth master;

requesting, by the second Bluetooth master, the satellite orbit information from the first Bluetooth master through the Bluetooth slave;

requesting, by the Bluetooth slave, the satellite orbit information from the first Bluetooth master in response to the requesting of the satellite orbit information by the second Bluetooth master;

transmitting the satellite orbit information requested by the Bluetooth slave to the Bluetooth slave from the first Bluetooth master;

transmitting, from the Bluetooth slave, a frequency hop selection (FHS) packet to the second Bluetooth master to establish a set frequency for a connection via the Bluetooth protocol between the Bluetooth slave and the second Bluetooth master; and

transmitting the satellite orbit information from the Bluetooth slave to the second Bluetooth master in response to the establishment of the set frequency so as to transmit the satellite orbit information from the first Bluetooth master 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:

establishing a connection via a Bluetooth protocol between a first Bluetooth master and a Bluetooth slave;

transmitting, by a second Bluetooth master, an inquiry code to the Bluetooth slave to determine if the Bluetooth slave is capable of receiving readily available satellite orbit information from the first Bluetooth master;

requesting, by the second Bluetooth master, the readily available satellite orbit information from the first Bluetooth master through the Bluetooth slave upon powering up of the second Bluetooth master;

requesting, by the Bluetooth slave, the satellite orbit information from the first Bluetooth master in response to the requesting of the satellite orbit information by the second Bluetooth master;

transmitting the satellite orbit information requested by the Bluetooth slave to the Bluetooth slave from the first Bluetooth master;

transmitting, from the Bluetooth slave, a frequency hop selection (FHS) packet to the second Bluetooth master to establish a set frequency for a connection via the Bluetooth protocol between the Bluetooth slave and the second Bluetooth master; and

accessing the readily available satellite orbit information from the first Bluetooth master by the Bluetooth slave and transmitting, from the Bluetooth slave to the second Bluetooth master, the accessed readily available satellite orbit information in response to the establishment of the set frequency and the powering up of the second 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).

14. A method of operating a global positioning system, comprising:

receiving updated satellite orbit information by a first Bluetooth master via a satellite receiver;

establishing a connection via a Bluetooth protocol between the first Bluetooth master and a Bluetooth slave;

transmitting, by a second Bluetooth master, an inquiry code to the Bluetooth slave to determine if the Bluetooth slave is capable of receiving the updated satellite orbit information from the first Bluetooth master;

receiving a request from the second Bluetooth master for the updated satellite orbit information through the Bluetooth slave by the first Bluetooth master having direct access to the satellite receiver and the updated satellite orbit information;

requesting, by the Bluetooth slave, the updated satellite orbit information from the first Bluetooth master in response to the requesting of the updated satellite orbit information by the second Bluetooth master;

transmitting the updated satellite orbit information requested by the Bluetooth slave to the Bluetooth slave from the first Bluetooth master;

transmitting, from the Bluetooth slave, a frequency hop selection (FHS) packet to the second Bluetooth master to establish a set frequency for a connection via the Bluetooth protocol between the Bluetooth slave and the second Bluetooth master; and

transmitting the updated satellite orbit information from the Bluetooth slave to the second Bluetooth master in response to the establishment of the set frequency so as to transmit the updated satellite orbit information from the first Bluetooth master to the second Bluetooth master through the Bluetooth slave.