Display system with nonvisible data projection

• US 6,811,267 B1
• Filed: 06/09/2003
• Issued: 11/02/2004
• Est. Priority Date: 06/09/2003
• Status: Active Grant

• Current Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Original Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Inventors: Allen, William J., Cruz-Uribe, Antonio S.
• Primary Examiner(s): MAHONEY, CHRISTOPHER E
• Application Number:
  US10/457,947
• Time in Patent Office: 512 Days
• Field of Search: 353/28, 353/79, 353/122, 359/443, 359/630, 349/11, 348/584, 348/586, 348/589
• US Class Current: 353/122
• CPC Class Codes: G03B 21/005 Projectors using an electronic spatial light modulator but not peculiar thereto
• CPC Class Codes: G09G 2358/00 Arrangements for display data security
• CPC Class Codes: G09G 3/3413 Details of control of colour illumination sources
• CPC Class Codes: H04N 9/3114 by using a sequential colour filter producing one colour at a time

Abstract

A display system includes an illumination source configured to produce visible and nonvisible radiation and to direct the visible and nonvisible radiation along an optical path; and a modulator disposed in the optical path configured to modulate the visible radiation to generate a visible image, and to modulate the nonvisible radiation to generate a nonvisible data stream.

Claims

1. A display system comprising:

an illumination source configured to produce visible and nonvisible radiation; and

a modulator configured to modulate the visible radiation to generate a visible image and to modulate the nonvisible radiation to generate a nonvisible data stream.

2. The display system of claim 1, where the visible radiation and the nonvisible radiation are temporally sequenced.

3. The display system of claim 1, where the modulator includes a color-forming element and an image-forming element.

4. The display system of claim 3, where the color-forming element includes a color wheel.

5. The display system of claim 4, where the color wheel includes a red transmissive segment, a green transmissive segment, a blue transmissive segment, and an infrared transmissive segment.

6. The display system of claim 3, where the image-forming element includes a transmissive image-forming element.

7. The display system of claim 3, where the image-forming element includes a reflective image-forming element.

8. The display system of claim 7, where the image-forming element includes a micromirror array.

9. The display system of claim 1, where the nonvisible radiation includes infrared radiation.

10. The display system of claim 1, further comprising a receiver configured to receive the nonvisible data stream.

11. The display system of claim 10, where the receiver is included in the display surface.

12. The display system of claim 1, where the nonvisible data stream includes serial data.

13. The display system of claim 1, further comprising an optically addressed active display surface including optically addressed receivers configured to receive the nonvisible data stream.

15. The display system of claim 1, where the nonvisible data stream includes image data.

16. The display system of claim 1, where the nonvisible data stream includes data related to a display system environment.

14. A display system comprising:

an illumination source configured to produce visible and nonvisible radiation; and

a modulator configured to modulate the visible radiation to generate a visible image and to modulate the nonvisible radiation to generate a nonvisible data stream that includes audio data.

17. A projection engine, comprising:

at least one illumination source;

a color-forming element, configured to manipulate radiation from the at least one illumination source to define at least one visible band and at least one nonvisible band; and

an image-forming element configured to form a visible image using the visible band and to form a nonvisible data stream using the nonvisible band.

18. The projection engine of claim 17, where the color-forming element is a color wheel.

19. The projection engine of claim 17, where the image-forming element is a micromirror array.

20. The projection engine of claim 17, where the image-forming element is configured to form the nonvisible data stream by pulse modulation.

21. The projection engine of claim 17, where the color-forming element is configured to temporally sequence the visible band and the nonvisible band.

22. A method of temporally sequencing a visible image and a nonvisible data stream, the method comprising:

generating visible and nonvisible radiation;

sequencing the visible radiation and the nonvisible radiation using a modulator;

modulating the visible radiation to generate a visible image; and

modulating the nonvisible radiation to generate a nonvisible data stream.

23. The method of claim 22, further comprising projecting the visible image onto a display surface.

24. The method of claim 22, further comprising projecting the nonvisible data stream onto a receiver.

25. The method of claim 24, where the nonvisible data stream includes additional image data.

26. The method of claim 24, where the nonvisible data stream includes a plurality of parallel data streams.

27. The method of claim 24, further comprising serializing data from the plurality of nonvisible data streams after reception at the receiver.

28. A method of temporally sequencing a visible image and a nonvisible data stream, the method comprising:

generating visible and nonvisible radiation;

sequencing the visible radiation and the nonvisible radiation;

modulating the visible radiation to generate a visible image;

modulating the nonvisible radiation to generate a nonvisible data stream that includes audio data; and

projecting the nonvisible data stream onto a receiver.

29. A storage medium readable by a processor, having embodied therein a program of commands executable by the processor to:

modulate visible radiation to generate a visible image corresponding to received image data; and

modulate nonvisible radiation to generate a nonvisible data stream corresponding to received non-image data.

30. The storage medium of claim 29, the storage medium further having embodied therein a program of commands executable by the processor to sequence the visible radiation and the nonvisible radiation.

31. A display system, comprising:

means for producing visible radiation;

means for producing nonvisible radiation;

means for modulating the visible radiation to generate a visible image; and

means for modulating the nonvisible radiation to generate a nonvisible data stream.

32. A projector, comprising a projection engine that includes:

an illumination source that produces visible and nonvisible radiation;

a color-forming element configured to sequentially pass the visible and nonvisible radiation;

an image-forming element configured to receive the sequenced visible and nonvisible radiation, form a visible image using the visible radiation, and form a nonvisible data stream using the nonvisible radiation.

33. The projector of claim 32, wherein the color-forming element includes a color wheel.

34. The projector of claim 33, wherein the color wheel includes a red transmissive segment, a green transmissive segment, a blue transmissive segment, and an infrared transmissive segment.

35. The projector of claim 32, where the image-forming element includes a micromirror array.