Generating and displaying spatially offset sub-frames

• US 20070052695A1
• Filed: 09/07/2005
• Published: 03/08/2007
• Est. Priority Date: 09/07/2005
• Status: Abandoned Application

• Current Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Original Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Inventors: Fasen, Donald, Beasley, Matthew, Howard, P., Leigh, Stan, Barnes, Ted, Larson, Arnold
• Application Number:
  US11/221,271
• Publication Number:
  US 20070052695A1
• Time in Patent Office: Days
• US Class Current: 345/204
• CPC Class Codes: G09G 3/002 to project the image of a two-dimensional display, such as an array of light emitting or modulating elements or a CRT
• CPC Class Codes: G09G 3/007 Use of pixel shift techniques, e.g. by mechanical shift of the physical pixels or by optical shift of the perceived pixels
• CPC Class Codes: G09G 3/20 for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
• CPC Class Codes: H04N 5/144 Movement detection for video coding H04N19/503; analysis of motion in general G06T7/20
• CPC Class Codes: H04N 5/7458 the modulator being an array of deformable mirrors, e.g. digital micromirror device [DMD]

Abstract

A system for displaying an image using a first sub-frame and a second sub-frame is provided. The system comprises an image shifter configured to cause the first sub-frame to be displayed at a first position on a display surface and the second sub-frame to be displayed at a second position on the display surface, a sensor configured to detect a movement of the image shifter, and a controller configured to receive movement information associated with the movement of the image shifter from the sensor.

Claims

1. A system for displaying an image using at least a first sub-frame and a second sub-frame, the system comprising:

an image shifter configured to cause the first sub-frame to be displayed at a first position on a display surface and the second sub-frame to be displayed at a second position on the display surface;

a sensor configured to detect a movement of the image shifter; and

a controller configured to receive movement information associated with the movement of the image shifter from the sensor.

2. The system of claim 1 wherein the controller is configured to compare the movement information to target information to generate a signal.

3. The system of claim 2 wherein the image shifter includes an optical element configured to be adjusted in accordance with the signal.

4. The system of claim 2 wherein the sensor is configured to provide the movement information to the controller.

5. The system of claim 2 wherein the controller includes a target waveform generator configured to generate the target information.

6. The system of claim 1 wherein the first position at least partially overlaps with the second position.

7. The system of claim 1 wherein the movement information includes one or more of position information, velocity information, and acceleration information.

8. The system of claim 1 wherein the controller includes a feed forward system.

9. The system of claim 1 wherein the controller includes a proportional integral derivative (PID) compensator.

10. The system of claim 1 wherein the image shifter includes an optical element and a motor configured to adjust the optical element to cause the first sub-frame to be displayed at the first position and the second sub-frame to be displayed at the second position.

11. A system for displaying an image using at least a first sub-frame and a second sub-frame, the system comprising:

means for causing the first sub-frame to be displayed at a first position on a display surface and the second sub-frame to be displayed at a second position on the display surface;

means for generating movement information from the means for causing the first sub-frame to be displayed at the first position and the second sub-frame to be displayed at the second position; and

means for comparing the movement information to target information to generate a signal.

12. The system of claim 11 further comprising:

means for providing the signal to the means for causing the first sub-frame to be displayed at a first position on a display surface and the second sub-frame to be displayed at a second position the display surface.

13. The system of claim 11 further comprising:

means for generating the target information.

14. The system of claim 11 wherein the first position at least partially overlaps with the second position.

15. The system of claim 11 wherein the movement information includes one or more of position information, velocity information, and acceleration information.

16. A method of making a display system configured to display an image using at least a first sub-frame and a second sub-frame, the method comprising:

providing an image shifter configured to cause the first sub-frame to be displayed at a first position on a display surface and the second sub-frame to be displayed at a second position on the display surface;

providing a sensor configured to detect a movement of the image shifter; and

providing a controller configured to receive movement information associated with the movement of the image shifter from the sensor.

17. The method of claim 16 wherein the controller is configured to compare the movement information to target information to generate a signal.

18. The method of claim 17 wherein the image shifter includes an optical element configured to be adjusted in accordance with the signal.

19. The method of claim 17 wherein the sensor is configured to provide the movement information to the controller.

20. The method of claim 17 wherein the controller includes a target waveform generator configured to generate the target information.

21. The method of claim 16 wherein the first position at least partially overlaps with the second position.

22. The method of claim 16 wherein the movement information includes one or more of position information, velocity information, and acceleration information.

23. The method of claim 16 wherein the image shifter includes an optical element and a motor configured to adjust the optical element to cause the first sub-frame to be displayed at the first position and the second sub-frame to be displayed at the second position.

24. A method of displaying an image using at least a first sub-frame and a second sub-frame, the method comprising:

generating the first sub-frame and the second sub-frame;

causing the first sub-frame to be displayed at a first position on a display surface and the second sub-frame to be displayed at a second position on the display surface;

generating movement information associated with causing the first sub-frame to be displayed at the first position; and

comparing the movement information to target information to generate a signal.

25. The method of claim 24 further comprising:

adjusting an image shifter using the signal.

26. The method of claim 24 further comprising:

generating the target information.

27. The method of claim 24 wherein the first position at least partially overlaps with the second position.

28. The method of claim 24 wherein the movement information includes one or more of position information, velocity information, and acceleration information.

29. A program product stored in computer readable medium and having instructions for causing a computer to execute a method comprising:

comparing movement information associated with an image shifter configured to cause a first sub-frame to be displayed at a first position on a display surface and a second sub-frame to be displayed at a second position on the display surface with target information; and

generating a signal configured to adjust the image shifter in response to comparing the movement information with the target information.

30. The program product of claim 29 wherein the movement information includes one or more of position information, velocity information, and acceleration information.