Wireless communication device and method

• US 8,140,013 B1
• Filed: 09/26/2008
• Issued: 03/20/2012
• Est. Priority Date: 06/04/2003
• Status: Active Grant

• Current Assignee: Monterey Research, LLC (Vector Capital Corporation)
• Original Assignee: Cypress Semiconductor Corporation (Infineon Technologies AG)
• Inventors: Beard, Paul, Wright, David
• Primary Examiner(s): Yun, Eugene
• Application Number:
  US12/239,602
• Time in Patent Office: 1,271 Days
• Field of Search: 455/41.2, 455/41.3, 455/39, 455/522, 455/422.1, 455/461, 455/465, 455/420, 455/410, 455/411, 455/566, 380/247, 380/270, 713/168, 713/151, 713/2, 725/35, 340/573.1
• US Class Current: 455/41.2
• CPC Class Codes: H04B 17/327 Received signal code power [RSCP]
• CPC Class Codes: H04B 17/382 for resource allocation, admission control or handover
• CPC Class Codes: H04W 76/14 Direct-mode setup

Abstract

A wireless communication device and associated method is described. The device includes a radio and a controller to operate the radio in a normal communications range responsive to the controller binding the radio to a host in a reduced binding range, where the radio and the controller are integrated into a single chip.

Claims

1. A device, comprising:

a radio; and

a controller operatively coupled to the radio to operate the radio in a normal communication range in response to the controller binding the radio to a host in a reducing binding range,

wherein the controller is configured to automatically switch the radio to operate in the normal communication range without user intervention in response to the controller binding the radio to the host, and

wherein the radio and the controller are integrated into a single chip.

2. The device of claim 1, wherein the radio is configured to operate in the reduced binding range in response to detecting that the host is within a threshold proximity.

3. The device of claim 1, wherein the controller is configured to cause the radio to transmit a bind channel change request identifying a bind channel on each of a plurality of wireless channels.

4. The device of claim 3, wherein the controller is configured to cause the radio to transmit a bind request in response to the host changing to the bind channel.

5. The device of claim 4, wherein the controller is configured to automatically switch the radio from operating at the reduced binding range to operating at the normal communications range after receiving a bind response to the bind request.

6. The device of claim 5, wherein the controller is configured to cause the radio to transmit a control response in response to the bind response.

7. The device of claim 1, wherein the controller is configured to direct the radio to modify transmit or receive signal strengths in response to the radio operating in the reduced binding range.

8. The device of claim 1, wherein the controller is configured to automatically cause the radio to operate at the reduced binding range in response to detecting a lack of communication from the host during operation of the radio at the normal communications range.

9. A method, comprising:

operating an integrated circuit chip at a reduced binding range to bind a host computer, wherein the integrated circuit chip includes a controller and a radio;

automatically switching the integrated circuit chip to operate in a normal communications range without user intervention in response to the integrated circuit chip binding to the host computer; and

operating the integrated circuit chip to communicate with the host computer at the normal communications range.

10. The method of claim 9, wherein the integrated circuit chip operates at the reduced binding range in response to detecting that the host computer is within a threshold proximity.

11. The method of claim 9, wherein the integrated circuit chip the reduced binding range in response to detecting a lack of communication from the host computer during operation of the integrated circuit chip at the normal communications range.

12. The method of claim 9, further comprising:

transmitting a bind channel change request on each of a plurality of wireless channels, wherein the bind channel change request identifies a bind channel;

transmitting a bind request in response to the host computer changing to the bind channel; and

in response to receiving a bind response, transmitting a control response and switching to a normal communications range.

13. A system, comprising:

an integrated circuit chip comprising a radio and a controller operatively coupled with the radio,

wherein the integrated circuit chip is configured to bind with a host computer at a reduced binding range, and communicate with the host computer at a normal communications range, and

wherein the integrated circuit chip is configured to automatically switch to operate in the normal communications range without user intervention in response to the integrated circuit chip binding to the host computer; and

the host computer, wherein the host computer is configured to bind with the integrated circuit chip in response to detecting that the integrated circuit chip is within a binding distance from the host computer.

14. The system of claim 13, wherein the integrated circuit chip is configured to operate in the reduced binding range in response to detecting that the host computer is within a threshold proximity.

15. The system of claim 13, wherein the integrated circuit chip is configured to transmit a bind channel change request identifying a bind channel on each of a plurality of wireless channels.

16. The system of claim 15, wherein the integrated circuit chip is configured to transmit a bind request in response to the host computer changing to the bind channel.

17. The system of claim 16, wherein the host computer is configured to transmit a bind response in response to receiving the bind request if the signal strength of the received bind request is above a predefined threshold.

18. The system of claim 17, wherein the integrated circuit chip is further configured to, in response to receiving the bind response from the host computer, switch from operating at the reduced binding range to operating at the normal range, and transmit a control response.

19. The system of claim 13, wherein the integrated circuit chip is configured to begin operating in the reduced binding range by modifying transmit or receive signal strengths of the radio.

20. The system of claim 13, wherein the integrated circuit chip is configured to operate at the reduced binding range in response to a lack of communication from the host computer during operation of the integrated circuit chip at the normal range.