Wireless cable replacement for computer peripherals

• US 6,950,859 B1
• Filed: 12/23/2002
• Issued: 09/27/2005
• Est. Priority Date: 12/23/2002
• Status: Expired due to Term

• Current Assignee: CSR Technology Incorporated (Qualcomm, Inc.)
• Original Assignee: Microtune (San Diego), Inc. (Qualcomm, Inc.)
• Inventors: Singamsetty, Suresh Kumar, Barrett, Richard M. Jr., Bartek, David J., Govindarajulu, Sarath Babu, Tran, Kim Phuong, Devadiga, Yashodhara
• Primary Examiner(s): VO, TIM T
• Application Number:
  US10/329,102
• Time in Patent Office: 1,009 Days
• Field of Search: 710313-315, 375130-135
• US Class Current: 709/217
• CPC Class Codes: H04L 69/08 Protocols for interworking; Protocol conversion
• CPC Class Codes: H04L 69/22 Parsing or analysis of headers
• CPC Class Codes: H04W 84/20 Master-slave selection or change arrangements

Abstract

A method for emulating a physical connection using a wireless connection includes establishing a communication connection with a host controller according to a first communication protocol and establishing a wireless connection with a wireless device coupled to a peripheral. The method further includes receiving a wireless signal comprising registration information for the peripheral formatted according to a second communication protocol and communicating the registration information to the host controller using the communication connection. The communication of the registration information to the host controller allows the host controller to recognize the peripheral.

Claims

1. A method for emulating a physical connection using a wireless connection, comprising:

registering a slave adapter with a host controller through a physical connection between the slave adapter and the host controller;

in response to registration of the slave adapter, receiving configuration parameters from the host controller;

establishing a communication session with the host controller according to a first communication protocol;

establishing a wireless connection with a wireless device coupled to a peripheral;

receiving a wireless signal comprising peripheral registration information for the peripheral formatted according to a second communication protocol;

communicating the peripheral registration information to the host controller as part of the communication session to allow the host controller to recognize the peripheral;

receiving data from as part of the communication session; and

communicating, in a manner determined based on the configuration parameters, the data in a wireless signal using the wireless connection.

2. The method of claim 1, wherein the communication session is established on a Universal Serial Bus (USB) connection.

3. The method of claim 1, wherein the wireless connection is a Bluetooth connection.

4. The method of claim 1, wherein the first communication protocol and the second communication protocol are the same.

5. The method of claim 1, wherein the first communication protocol comprises a communication protocol different from the second communication protocol.

6. The method of claim 1, wherein:

the wireless signal is a first wireless signal; and

the method further comprises;

receiving a second wireless signal comprising information generated by the peripheral;

extracting the information from the second wireless signal; and

communicating the information to the host controller as part of the communication session.

7. The method of claim 1, wherein:

the peripheral registration information comprises a vendor identifier and a product identifier; and

the host controller selects a driver corresponding to the peripheral based on the peripheral registration information.

8. The method of claim 1, wherein the peripheral is one of a plurality of peripherals;

and further comprising;

establishing a wireless connection with a wireless device coupled to each peripheral;

receiving a wireless signal from each peripheral comprising peripheral registration information for that peripheral formatted according to the second communication protocol; and

communicating the peripheral registration information for each peripheral to the host controller as part of the communication session to allow the host controller to recognize that peripheral.

9. The method of claim 1, wherein establishing the communication session comprises:

forming the physical connection with the host controller; and

maintaining the communication session an inactive state until the wireless connection is established with the wireless device.

10. The method of claim 1, further comprising:

establishing a wireless connection with a plurality of wireless devices; and

exchanging information with each of the wireless devices.

11. The method of claim 1, wherein the communication session is established in a medium selected from the group consisting of:

an optical signal, an electrical signal, and a wireless signal.

12. The method of claim 1, wherein the configuration parameters specify a packet size, and wherein communicating the data in a manner determined based on the configuration parameters comprises communicating the data in packets that are sized based on the packet size specified by the configuration parameters.

13. The method of claim 6, wherein the configuration parameters specify the second communication protocol, and wherein extracting the data comprises extracting the data based on the second communication protocol specified by the configuration parameters.

14. A device, comprising:

a device interface operable to establish a communication session with a host controller according to a first communication protocol;

a wireless interface operable to;

receive a wireless signal from a wireless device coupled to a peripheral, the wireless signal comprising peripheral registration information for the peripheral formatted according to a second communication protocol; and

a processor operable to;

register the device with the host controller as part of the communication session;

receive configuration parameters from the host controller in response to registration of the device;

communicate the peripheral registration information to the host controller as part of the communication session in order to allow the host controller to recognize the peripheral;

receive data from the host controller as part of the communication session; and

communicates in a manner determined based on the configuration parameters, the data in a wireless signal using the wireless connection.

15. The device of claim 14, wherein the communication session is established on a Universal Serial Bus (USB) connection.

16. The device of claim 14, wherein the wireless connection is a Bluetooth connection.

17. The device of claim 14, wherein:

the device further comprises a printed circuit board;

the device interface comprises a B connector for USB connections; and

the B connector is integral to the printed circuit board.

18. The device of claim 14, wherein:

the peripheral registration information comprises a vendor identifier and a product identifier; and

the host controller selects a driver corresponding to the peripheral based on the peripheral registration information.

19. The device of claim 14, wherein:

the device further comprises a memory operable to store an encryption key;

the wireless interface is further operable to receive a wireless signal by receiving an encrypted wireless signal; and

the processor is further operable to decrypt the encrypted wireless signal based on the encryption key and to extract the peripheral registration information from the decrypted wireless signal.

20. The device of claim 14, wherein the communication session is established in a medium selected from the group consisting of:

an optical signal, an electrical signal, and a wireless signal.

21. The device of claim 14, wherein the first and second communication protocols are the same.

22. The device of claim 14, wherein the first communication protocol comprises a different communication protocol from the second communication protocol.

23. The device of claim 19, further comprising an encryption module operable to couple to the peripheral interface, the encryption module further operable to program the memory with the encryption key.

24. A system, comprising:

a slave adapter operable to;

register the slave adapter with a first host controller coupled to the slave adapter through a physical connection;

receive configuration parameters from the first host controller in response to the slave adapter registering with the first host controller;

receive data from the first host controller having a format specified by a communication protocol; and

communicate the data in a wireless signal in a manner determined based on the configuration parameters; and

a master adapter, comprising;

a wireless receiver operable to extract the data from the wireless signal; and

a second host controller operable to establish a communication session with a peripheral according to the communication protocol and further operable to communicate the data to the peripheral.

25. The system of claim 24, wherein the communication protocol is Universal Serial Bus (USB) protocol.

26. The system of claim 24, wherein the wireless signal is a Bluetooth signal.

27. The system of claim 24, wherein:

the slave adapter is one of a plurality of slave adapters, each slave adapter coupled to a computer; and

the slave adapters are further operable to;

detect the other slave adapters;

establish wireless connections with the other slave adapters; and

exchange information stored by the respective computers of the slave adapters in a manner determined based on configuration parameters received by those slave adapters.

28. The system of claim 24, wherein:

the master adapter is one of a plurality of master adapters, each coupled to a respective peripheral; and

the slave adapter is operable to;

establish a wireless connection with each of the master adapters; and

exchange information with the respective peripherals of the master adapters using the wireless connections.

29. The system of claim 24, wherein:

the master adapters are further operable to establish wireless connections with one another; and

the corresponding peripherals exchange information using the wireless connections between the master adapters.

30. The system of claim 24, wherein the configuration parameters specify a packet size and wherein the slave adapter is operable to communicate the data in the wireless signal in a manner determined based on the configuration parameters by communicating the data in packets that are sized based on the packet size specified by the configuration parameters.

31. The system of claim 24, wherein:

the communication protocol comprises a wireline communication protocol;

the configuration parameters specify a wireless communication protocol; and

the slave adapter is operable to communicate the data in the wireless signal in a manner determined based on the configuration parameters by communicating the data according to the wireless communication protocol specified by the configuration parameters.

32. The system of claim 24, wherein:

the peripheral registration information comprises a vendor identifier and a product identifier; and

the host controller is operable to select a driver corresponding to the peripheral based on the peripheral registration information.

33. A system, comprising:

a master adapter, comprising;

a host controller operable to establish a communication session according to a wireline communication protocol and further operable to receive data formatted according to the wireline communication protocol from the peripheral; and

a wireless interface operable to communicate the data in a wireless signal; and

a slave adapter, comprising;

a wireless interface operable to receive the wireless signal from the master adapter and to extract the data from the wireless signal;

a processor operable to;

register the slave adapter with a computer through a device interface physically connected to the computer;

receive configuration parameters from the computer in response to registering the slave adapter with the computer; and

convert, in a manner determined based on the configuration parameters, the extracted data from a wireless communication protocol to the wireline communication protocol; and

the device interface operable to communicate the converted data to the computer.

34. The system of claim 33, wherein the wireline communication protocol is Universal Serial Bus (USB) protocol.

35. The system of claim 33, wherein the wireless signal is a Bluetooth signal.

36. The system of claim 33, wherein the peripheral is selected from the group consisting of:

a printer, a scanner, a digital camera, a web camera, a modem, a personal digital assistant, a PC tablet, a joystick, a mouse, and a keyboard.

37. The system of claim 33, wherein:

the configuration parameters specify a wireless communication protocol; and

the processor is operable to convert the data in a manner determined based on the configuration parameters by converting the extracted data from the wireless communication protocol specified by the configuration parameters to the wireline communication protocol.

38. The system of claim 33, wherein:

the peripheral registration information comprises a vendor identifier and a product identifier; and

the computer is operable to select a driver corresponding to the peripheral based on the peripheral registration information.