Interchangeable display modules for portable handheld devices

• US 7,884,815 B2
• Filed: 05/08/2007
• Issued: 02/08/2011
• Est. Priority Date: 02/28/2002
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Palm, Inc. (TCL Technology Group Corp.)
• Inventors: Lam, Lawrence, Gettemy, Shawn R., Fraser, Sherridythe A., Wong, Yoon Kean, Lee, Kevin
• Primary Examiner(s): Patel; Nitin
• Application Number:
  US11/801,335
• Publication Number:
  US 20080032755A1
• Time in Patent Office: 1,372 Days
• Field of Search: 345156-173, 345/30, 710/100, 710/12, 710/13, 340/572.1, 455/575.1
• US Class Current: 345/204
• CPC Class Codes: G09G 2340/14 Solving problems related to the presentation of information to be displayed
• CPC Class Codes: G09G 2370/042 for monitor identification
• CPC Class Codes: G09G 2370/045 using multiple communication channels, e.g. parallel and serial
• CPC Class Codes: G09G 5/006 Details of the interface to the display terminal specific for a display terminal using a CRT G09G1/167; using a flat panel G09G3/2096; circuits for interfacing with colour displays G09G5/04

Abstract

A handheld computing device featuring interchangeable display units is disclosed. The handheld computing device includes a processing unit and a visual display unit detachable from the processing unit. The processing unit and the detachable visual display unit include communication ports capable of communicating with each other. The processing unit further can receive information representative of the properties of the detachable visual display unit.

Claims

1. A mobile computing device comprising:

a processor;

a display unit coupled to the processor; and

a wireless communication interface, wherein the processor is configured to detect a property of a projection display unit via the wireless communication interface and to send information to be displayed on the projection display unit.

2. The mobile computing device of claim 1, further comprising a display controller having display controller settings, wherein the processor is configured to update the display controller based on the detected property of the projection display, wherein the display controller is configured to provide the information to be displayed on the projection display unit based on the detected property of the projection display.

3. The mobile computing device of claim 2, wherein the property comprises color capability and resolution.

4. The mobile computing device of claim 2, wherein the property comprises a display type.

5. The mobile computing device of claim 2, further comprising a memory configured to store properties of a plurality of different displays.

6. The mobile computing device of claim 1, wherein the mobile computing device comprises a wireless mobile phone.

7. The mobile computing device of claim 1, wherein the mobile computing device comprises a handheld personal digital assistant.

8. The mobile computing device of claim 1, wherein the wireless communication interface is configured to operate according to an IEEE 802.11 protocol.

9. The mobile computing device of claim 1, further comprising the projection display unit.

10. A method of displaying information from a mobile computing device on a projection display, comprising:

wirelessly detecting a property of the projection display unit via a wireless communication interface on the mobile computing device;

updating display controller settings on the mobile computing device based on the detected property; and

wirelessly sending information to be displayed on the projection display unit.

11. The method of claim 10, wherein the property comprises color capability and resolution.

12. The method of claim 11, wherein the property comprises a display type.

13. The method of claim 10, further comprising storing properties of a plurality of different displays.

14. The method of claim 10, wherein the mobile computing device comprises a wireless mobile phone.

15. The method of claim 10, wherein the steps of wirelessly detecting and wirelessly sending operate according to an IEEE 802.11 protocol.

16. A computing device comprising:

a processor;

a display coupled to the processor; and

a wireless communication interface, wherein the processor is configured to communicate display data via the wireless communication interface to a display system comprising a display unit with different properties than the display coupled to the processor.

17. The computing device of claim 16, wherein the processor is configured to detect a property of the display unit via the wireless communication interface and to communicate the display data based on the detected property.

18. The computing device of claim 16, wherein the processor is configured to detect properties of a plurality of display systems and to store the properties in a memory, wherein the processor is configured to communicate display data via the wireless communication interface with the plurality of display systems.

19. The computing device of claim 16, wherein the display system comprises a television set comprising a television transceiver.

20. The computing device of claim 16, wherein at least one of the properties is that the display unit is larger than the display coupled to the processor.

21. The computing device of claim 16, further comprising the display system comprising the display unit.