Videoconferencing terminal with a persistence of vision display and a method of operation thereof to maintain eye contact

• US 8,520,051 B2
• Filed: 12/17/2009
• Issued: 08/27/2013
• Est. Priority Date: 12/17/2009
• Status: Expired due to Fees

• Current Assignee: Sound View Innovations, LLC (Sound View Innovation Holdings, LLC)
• Original Assignee: Alcatel-Lucent SA (Nokia Corporation)
• Inventors: Bolle, Cristian A., Chen, Gang, Ryf, Roland
• Primary Examiner(s): Gauthier, Gerald
• Application Number:
  US12/640,998
• Publication Number:
  US 20110149012A1
• Time in Patent Office: 1,349 Days
• Field of Search: 340/435, 340/619, 348/14.01, 348/14.08, 348/14.1, 348/14.16, 348/47, 348/78, 348/169, 351/209, 382/115, 345/619, 356/237.5, 359/618, 438/87
• US Class Current: 348/14.08
• CPC Class Codes: G06F 3/042 by opto-electronic means
• CPC Class Codes: G09G 3/005 forming an image using a quickly moving array of imaging elements, causing the human eye to perceive an image which has a larger resolution than the array, e.g. an image on a cylinder formed by a rotating line of LEDs parallel to the axis of rotation
• CPC Class Codes: H04N 7/144 camera and display on the same optical axis, e.g. optically multiplexing the camera and display for eye to eye contact

Abstract

The disclosure provides apparatuses for videoconferencing and a method of operation thereof. In one embodiment, an apparatus includes: (1) a display substrate occupying less than an entirety of a viewing area, (2) an actuator configured to move the display substrate over the viewing area and (3) a camera having a field of view at least partially overlapping the viewing area and configured to capture a camera image through the viewing area.

Claims

1. An apparatus, comprising:

a display substrate occupying less than an entirety of a viewing area;

an actuator configured to move said display substrate over said viewing area; and

a camera having a field of view at least partially overlapping said viewing area and configured to capture a camera image through said viewing area.

2. The apparatus as recited in claim 1 wherein said actuator is configured to move said display substrate at a speed sufficient to present a display image as persistent to a human eye.

3. The apparatus as recited in claim 1 wherein said display substrate includes an array of electronic light sources located thereon.

4. The apparatus as recited in claim 3 further comprising electronic circuitry coupled to, and capable of controlling, said array of electronic light sources to form said display image.

5. The apparatus as recited in claim 3 wherein said electronic light sources are light-emitting diodes configured to transmit light of three different colors.

6. The apparatus as recited in claim 1 further comprising a light-absorbing substrate positioned between said display substrate and said camera and having at least one opening, said field of view passing through said opening.

7. The apparatus as recited in claim 1 further comprising a position detector configured to provide signals indicating a position of said display substrate.

8. The apparatus as recited in claim 1 further comprising a transparent substrate, wherein said display substrate includes an array of photodetectors configured to detect touching of said transparent substrate.

9. A method of videoconferencing, comprising:

moving a display substrate over a viewing area, said display substrate occupying less than an entirety of said viewing area; and

capturing a camera image through said viewing area, said camera having a field of view at least partially overlapping said viewing area.

10. The method as recited in claim 9 wherein said moving occurs at a speed sufficient to present a display image as persistent to a human eye.

11. The method as recited in claim 9 wherein said display substrate includes an array of electronic light sources located thereon.

12. The method as recited in claim 11 further comprising controlling said array of electronic light sources, employing electronic circuitry, to form said display image.

13. The method as recited in claim 11 wherein said electronic light sources are light-emitting diodes configured to transmit light of three different colors.

14. The method as recited in claim 9 further comprising reducing reflections of light associated with said capturing.

15. The method as recited in claim 9 further comprising providing signals indicating a position of said display substrate.

16. The method as recited in claim 9 further comprising detecting touching of a transparent substrate associated with said movable display and said camera.

17. An apparatus, comprising:

a first videoconferencing terminal connectable to support a videoconferencing session video with a second videoconferencing terminal via a telecommunications network, wherein said first terminal includes;

a display substrate occupying less than an entirety of a viewing area;

an actuator configured to move said display substrate over said viewing area; and

a camera having a field of view at least partially overlapping said viewing area and configured to capture a camera image through said viewing area.

18. The apparatus as recited in claim 17 wherein said first terminal further comprises a light-absorbing substrate positioned between said display substrate and said camera and having at least one opening, said field of view passing through said opening.

19. The apparatus as recited in claim 17 wherein said first terminal further comprises a position detector configured to provide signals indicating a position of said display substrate.

20. The apparatus as recited in claim 17 wherein said first terminal further comprises a transparent substrate, wherein said display substrate includes an array of photodetectors configured to detect touching of said transparent substrate.