Wireless presentation system

• US 7,434,166 B2
• Filed: 06/02/2004
• Issued: 10/07/2008
• Est. Priority Date: 06/03/2003
• Status: Active Grant

• Current Assignee: Harman International Industries Incorporated (Samsung Electronics Co. Ltd.)
• Original Assignee: Harman International Industries Incorporated (Samsung Electronics Co. Ltd.)
• Inventors: Acharya, Shrikant, Crosbie, John E., Ninomiya, Shiro, Acharya, Shrinath
• Primary Examiner(s): NGUYEN, CAO H
• Application Number:
  US10/859,653
• Publication Number:
  US 20050036509A1
• Time in Patent Office: 1,588 Days
• Field of Search: 715740-765, 715853-854, 715840-843, 709/223, 709/209
• US Class Current: 715/740
• CPC Class Codes: G03B 21/10 Projectors with built-in or built-on screen
• CPC Class Codes: G03B 2206/00 Systems for exchange of information between different pieces of apparatus, e.g. for exchanging trimming information, for photo finishing
• CPC Class Codes: H04L 63/0428 wherein the data content is protected, e.g. by encrypting or encapsulating the payload
• CPC Class Codes: H04N 21/4122 additional display device, e.g. video projector digital output for controlling a plurality of local displays G06F3/1423
• CPC Class Codes: H04N 21/43615 Interfacing a Home Network, e.g. for connecting the client to a plurality of peripherals home Audio Video Interoperability [HAVI] data switching networks H04L12/2805
• CPC Class Codes: H04N 21/43637 involving a wireless protocol, e.g. Bluetooth, RF or wireless LAN [IEEE 802.11] arrangements for wireless networking or broadcasting of information in indoor or near-field type systems H04B10/114
• CPC Class Codes: H04N 21/441 Acquiring end-user identification , e.g. using personal code sent by the remote control or by inserting a card
• CPC Class Codes: H04N 21/4753 for user identification, e.g. by entering a PIN or password cryptographic authentication protocols H04L9/32; networks authentication protocols H04L63/08
• CPC Class Codes: H04W 12/06 Authentication
• CPC Class Codes: H04W 12/50 Secure pairing of devices

Abstract

A system and method for interactive management of multiple wireless devices (such as PDA'"'"'s or desktop or laptop computers) making graphical or video presentations while connected wirelessly to a display device whose wireless module converts the transmitted data from the wireless devices to the required format for display.

Claims

1. A shareable display system comprising:

at least one multimedia display;

a data port configured to receive first control data through a first data link with a first computing device and configured to receive second control data through a second data link with a second computing device, the first and second control data for controlling information displayed on the multimedia display;

a processor configured to;

receive at least one of the first and second control data, via the first and second data links, from at least one of the first computing device and second computing device;

determine at least one right to control a shareable resource of the multimedia display from the respective device that transmitted the control data;

determine whether the control data received matches the at least one right to control the shareable resource multimedia display;

executing the control data if the control data matches the at least one right,

where at least one of the first and second data links comprise a wireless data link.

2. The shareable display system of claim 1, where the processor is further configured to arbitrate between video data received through the first and second data links in a roundtable mode.

3. The shareable display system of claim 1, where the processor is configured to arbitrate between video data received through the first and second data links in a moderator mode.

4. The shareable display system of claim 1, where the first computing device comprises a portable computer and the first data link receives high-bandwidth data from the portable computer, and

where the second computing device comprises a handheld computing device and the second data link receives low-bandwidth data from the handheld computing device.

5. The shareable display system of claim 4, where the handheld computing device comprises a PDA.

6. The shareable display system of claim 4, where the handheld computing device comprises a cellular telephone.

7. The shareable display system of claim 1, further comprising a memory-card interface, where the data port is further configured to receive data from a memory card removably coupled to the memory-card interface.

8. The shareable display system of claim 1, where the first computing device comprises a PDA unit.

9. The shareable display system of claim 1, where the second computing device comprises a laptop computer.

10. The shareable display system of claim 1, where the shareable display system comprises a video projector.

11. The shareable display system of claim 1, where the shareable display system comprises a wireless audio receiver, and

where the selected video data includes compressed audio data.

12. The shareable display system of claim 1, where the shareable display system is comprised in a module configured to be removably attached to a video projector.

13. The shareable display system of claim 1, where the first data link comprises a wireless Ethernet link from the first computing device.

14. The shareable display system of claim 1, where the first data link comprises a wired Ethernet link from the first computing device.

15. The shareable display system of claim 1, where the first data link comprises a wireless Bluetooth®

link from the first computing device.

16. The shareable display system of claim 1, where video data received through the first data link includes compressed image information.

17. The shareable display system of claim 1, where video data received through the first data link includes uncompressed image information.

18. The shareable display system of claim 1, where video data received through the first data link includes compressed video information.

19. The shareable display system of claim 1, where video data received through the first data link includes uncompressed video information.

20. The shareable display system of claim 1, where the data port is configured to interface with the first computing device so that the multimedia display comprises an extended monitor for the first computing device.

21. The shareable display system of claim 1, where the data port is configured to interface with the first computing device so that the multimedia display reproduces an image displayed on a local screen of the first computing device.

22. The shareable display system of claim 1, where the control data comprises a blanking command;

and

where the processor is configured to blank the video display in response to the blanking command from the first computing device.

23. The shareable display system of claim 1, where the first and second data links are formed with a network server.

24. The shareable display system of claim 1, where the first and second data links are ad-hoc links.

25. The shareable display system of claim 1, where the processor is configured to display a communications dialog interface on the first computing device.

26. The shareable display system of claim 25, where the communications dialog interface is user-configurable to include text in a native language of a user.

27. The shareable display system of claim 1, further comprising an update module configured to receive update information from a server computer through a network connection,

where the update information is useable in updating the controller.

28. The shareable display system of claim 27, where the controller comprises a processor and a memory holding computer instructions for the processor, and

where the update information comprises updated computer instructions.

29. The shareable display system of claim 1, further comprising an identification module coupled to the data port and configured to identify the first and second computing devices.

30. The shareable display system of claim 1, further comprising an identification module coupled to the data port and configured to identify users of the first and second computing devices.

31. The shareable display system of claim 30, where the identification module includes a memory comprising identifying characteristics of the first and second computing devices.

32. The shareable display system of claim 30, where the identification module includes an interface to a data file accessible through a computer network,

where the data file comprises identifying characteristics of the first and second computing devices.

33. The shareable display system of claim 1, where at least one of the first computing device and second computing device is a moderator device.

34. The shareable display system of claim 33, where the processor determines rights to control the multimedia display based on whether the device that transmitted the control data is the moderator device.

35. The shareable display system of claim 1, where the shareable resource of the multimedia display comprises a mouse cursor;

and

where the control data received comprises data indicative of controlling the mouse cursor displayed on the multimedia display.

36. The shareable display system of claim 1, where the shareable resource of the multimedia display comprises editing at least a portion of information displayed on the multimedia display;

and

where the control data received comprises data indicative of editing the at least a portion of the information displayed on the multimedia display.

37. The shareable display system of claim 36, where the control data comprises data indicative of highlighting text displayed on the multimedia display.

38. The shareable display system of claim 1, where the shareable resource of the multimedia display comprises displaying text on the multimedia display;

and

where the control data received comprises data indicative of the text for display on the multimedia display.

39. The shareable display system of claim 38, where the processor is further configured to determine a color of the text based on whether the first computing device or second computing device sent the control data.

40. The shareable display system of claim 1, where the shareable resource of the multimedia display comprises displaying at least one image on the multimedia display;

and

where the control data received comprises data indicative of the at least one image for display on the multimedia display.

41. The shareable display system of claim 40, where the processor is further configured to arbitrate between video data received through the first and second data links in a roundtable mode.

42. The shareable display system of claim 1, where the first computing device comprises a device designated to control the shareable display system;

and

further comprising;

receiving data from the second computing device requesting control of the shareable display system; and

determining whether to transfer control to the second computing device for at least a part of the sharable display system.

43. The shareable display system of claim 42, where the first computing device comprises a moderator designated to control the shareable display system;

and

where determining whether to transfer control to the second computing device comprises determining whether to designate the second computing device as the moderator designated to control the shareable display system.