Fast connection establishment method for bluetooth device

• US 20040203366A1
• Filed: 07/15/2002
• Published: 10/14/2004
• Est. Priority Date: 05/29/2002
• Status: Active Grant

• Current Assignee: GONG Sun Capital LLC
• Original Assignee: GVC Corporation (Lite-On Technology Corporation)
• Inventors: Chen, James
• Granted Patent: US 6,978,119 B2
• Time in Patent Office: Days
• US Class Current: 455/41.2
• CPC Class Codes: H04W 76/10 Connection setup
• CPC Class Codes: H04W 8/26 Network addressing or numbering for mobility support
• CPC Class Codes: H04W 84/18 Self-organising networks, e.g. ad-hoc networks or sensor networks

Abstract

A fast connection establishment method for a bluetooth device is used to establish a connection between two bluetooth devices in order to provide a wireless transmission function. A bluetooth module, bluetooth address memory, CPU and connection interface for outside device are installed in each bluetooth device. The method first connects the three signal contacts of a bluetooth device to the three signal contacts of another bluetooth device to interchange the bluetooth addresses with each other. Then, the bluetooth address memory of the bluetooth device is used to store the bluetooth address of the opposite bluetooth device. After this, the bluetooth address is sent out after the power source of the bluetooth device is on. Finally, a bluetooth connection procedure is started if the bluetooth address of the opposite device is received by it in a specific time. Thereby, a wireless transmission can be established between two bluetooth devices.

Claims

1. A fast connection establishment method for a bluetooth device, wherein a bluetooth module, a bluetooth address memory, CPU and an outside device connection interface are mainly installed in the bluetooth device, said method comprising the following steps:

(a) contacting three signal contacts of said bluetooth device with three signal contacts of another bluetooth device, and then, both bluetooth addresses being interchanged each other before said bluetooth devices are switched on;

(b) using said bluetooth address memory of said bluetooth device to store said bluetooth address of said another bluetooth device;

(c) said bluetooth address being sending out from said bluetooth device after said bluetooth device is switched on; and

(d) a bluetooth connection procedure being activated if said bluetooth address of said another bluetooth device is received in a specific time,

therefore, a connection being able to be build between said two bluetooth devices so as to provide a wireless transmission function.

2. The method of claim 1, wherein said three signal contacts are connected with a data input line, ground line and data output line respectively.

3. The method of claim 1, wherein said connection interface is used to connect said bluetooth device with an outside device.

4. The method of claim 3, wherein said connection interface is a RS232 or an USB interface.

5. The method of claim 3, wherein said outside device is a computer, a modem, a keyboard or a mouse.

6. The method of claim 1, wherein said bluetooth device further comprises a speaker or a photodiode, used to prompt the success or failure of said bluetooth connection.

7. The method of claim 1, wherein at said (d) step, said bluetooth device enters into page scan mode to wait for a connection, if said bluetooth address of said opposite bluetooth device is larger than said bluetooth address of said bluetooth device after said bluetooth connection procedure is activated.

8. The method of claim 1, wherein at said (d) step, said bluetooth device enters into page mode to ask for building a connection, if said bluetooth address of said opposite bluetooth device is smaller than said bluetooth address of said bluetooth device after said bluetooth connection procedure is activated.

9. A bluetooth device, mainly comprising:

a bluetooth module, used to process a wireless transmission with another bluetooth device;

a bluetooth address memory, used to store a previously memorized bluetooth address of said opposite bluetooth device; and

a CPU;

so as to build a connection with said another bluetooth device to provide a wireless transmission.

10. The device of claim 9, wherein said bluetooth device further comprises a connection interface to connect said bluetooth device with an outside device.

11. The device of claim 9 or 10, wherein said bluetooth device further comprises a speaker or a photodiode, used to prompt the success or failure of said bluetooth connection.

12. A wireless transmission device, used to replace a RS232, mainly comprising a RS connection head connected to a computer or a peripheral device;

three signal contacts including a data output line, a ground line and a data input line;

a wireless transmission being processed between said two bluetooth devices after said three contacts of said both bluetooth devices are contacted.