Compound portable computing device with dual portion keyboard coupled over a wireless link

• US 6,867,965 B2
• Filed: 06/10/2002
• Issued: 03/15/2005
• Est. Priority Date: 06/10/2002
• Status: Expired due to Fees

• Current Assignee: Soon Huat Khoo
• Original Assignee: Soon Huat Khoo
• Inventors: Khoo, Soon Huat
• Primary Examiner(s): Trost, William
• Assistant Examiner(s): Kim, Wesley
• Application Number:
  US10/167,251
• Publication Number:
  US 20030227745A1
• Time in Patent Office: 1,009 Days
• Field of Search: 455/556.1, 455/556.2, 455/557, 455/66.1, 455/69, 455/11.1, 455/554, 361/686, 361/681, D14/244, D14/247, 705/57, 345/168, 345/169
• US Class Current: 361/679.3
• CPC Class Codes: G06F 3/0231 Cordless keyboards
• CPC Class Codes: G06F 3/0233 Character input methods
• CPC Class Codes: G06F 3/0238 Programmable keyboards key guide holders G06F3/0224
• CPC Class Codes: H04M 1/72412 using two-way short-range wireless interfaces

Abstract

A compound portable computing device comprising two or more separate portable devices coupled over a wireless link is described. A first portable computing device contains a first portion of a full-size conventional QWERTY keyboard. A second portable computing device contains a second portion of the full-size keyboard, and the first portion and the second portion together comprise the keys of the full-size keyboard. A network link is established that couples the first portable computing device to the second portable computing device. A partial keyboard map is loaded into memory of the first and second devices. The partial keyboard map loaded into the memory of the first device corresponds to the portion of the keyboard contained in the first device, and the partial keyboard map loaded into the memory of the second device corresponds to the portion of the keyboard contained in the second device. The partial keyboard maps are operable to allow the first and second portable computing devices to operate in conjunction with each other to provide text input using the first and second portions of the full-size keyboard.

Claims

1. A networked computing device comprising:

a first portable computing device containing a first portion of a full-size keyboard;

a second portable computing device containing a second portion of the full-size keyboard, wherein the first portion and the second portion together comprise the keys of the full-size keyboard;

a network link coupling the first portable computing device to the second portable computing device;

a first partial keyboard map loaded into memory of the first portable computing device; and

a second partial keyboard map loaded into memory of the second portable computing device, the first and second partial keyboard maps operable to allow the first and second portable computing devices to operate in conjunction with each other to provide text input using the first and second portions of the full-size keyboard.

2. The networked computing device of claim 1 wherein the full-size keyboard is a conventional QWERTY keyboard.

3. The networked computing device of claim 2 wherein the network link comprises a flexible hard-wire cable.

4. The networked computing device of claim 2 wherein the network link comprises a wireless link.

5. The networked computing device of claim 3 wherein the wireless link utilizes a Bluetooth protocol between the first portable computing device and the second portable computing device.

6. The networked computing device of claim 5 wherein

the first portable computing device is designated as a slave device and the first portion of the full-size keyboard comprises keys on the left-hand side of the conventional QWERTY keyboard, and wherein

the second portable computing device is designated as a master device and the second portion of the full-size keyboard comprises keys on the right-hand side of the conventional QWERTY keyboard.

7. The networked computing device of claim 1 wherein the first portable computing device is one of a mobile phone, a Personal Digital Assistant, and a portable notebook computer.

8. The networked computing device of claim 1 wherein the second portable computing device is one of a mobile phone, a Personal Digital Assistant, and a portable notebook computer.

9. A method of providing a compound data entry device comprising the steps of:

providing a first portable computing device containing a first portion of a full-size keyboard, the full-size keyboard corresponding to a conventional QWERTY keyboard;

providing a second portable computing device containing a second portion of the full-size keyboard, wherein the first portion and the second portion together comprise the keys of the full-size keyboard;

establishing a network link coupling the first portable computing device to the second portable computing device;

loading a first partial keyboard map into memory of the first portable computing device;

loading a second partial keyboard map into memory of the second portable computing device; and

configuring the first and second portable computing devices to operate in conjunction with each other to provide text input using the first and second portions of the full-size keyboard.

10. The method of claim 9 wherein the network link comprises a flexible hard-wire cable.

11. The method of claim 10 wherein the network link comprises a wireless link.

12. The method of claim 11 wherein the wireless link utilizes a Bluetooth protocol between the first portable computing device and the second portable computing device.

13. The method of claim 12 further comprising the steps of:

designating the first portable computing device as a slave device and assigning the first portion of the full-size keyboard to comprise keys on the left-hand side of the conventional QWERTY keyboard; and

designating the second portable computing device as a master device and assigning the second portion of the full-size keyboard to comprise keys on the right-hand side of the conventional QWERTY keyboard.

14. The method of claim 13 further comprising the steps of:

establishing a Bluetooth wireless link between the first and second portable computing devices when the first portable computing device is within a predetermined range of the second portable computing device;

maintaining the wireless link as long as a heartbeat signal is transmitted between the first and second portable computing devices, or key input activity is detected by either the first or second portable computing devices; and

closing the wireless link upon detection of a termination activity.

15. The method of claim 9 wherein the first portable computing device is one of a mobile phone, a Personal Digital Assistant, and a portable notebook computer, and wherein the second portable computing device is one of a mobile phone, a Personal Digital Assistant, and a portable notebook computer.

16. The method of claim 13, wherein the first portable computing device includes a touch-sensitive display, the method further comprising the step of assigning one or more of the keys on the left-hand side of the conventional QWERTY keyboard to be embodied in a portion of the touch-sensitive display of the first portable computing device.