VISUAL DATA DISTRIBUTION

• US 20130106815A1
• Filed: 07/08/2010
• Published: 05/02/2013
• Est. Priority Date: 07/08/2010
• Status: Active Grant

• Current Assignee: WSOU Investments, LLC (WSOU Holdings, LLC)
• Original Assignee: Nokia Corporation
• Inventors: Virolainen, Antti, Akerman, Panu
• Granted Patent: US 9,100,681 B2
• Time in Patent Office: Days
• US Class Current: 345/207
• CPC Class Codes: G06F 3/0425 using a single imaging device like a video camera for tracking the absolute position of a single or a plurality of objects with respect to an imaged reference surface, e.g. video camera imaging a display or a projection screen, a table or a wall surface, on which a computer generated image is displayed or projected tracking a projected light spot to determine a position on a display surface G06F3/0386
• CPC Class Codes: G06F 3/14 Digital output to display device ; Cooperation and interconnection of the display device with other functional units
• 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 5/003 Details of a display terminal, the details relating to the control arrangement of the display terminal and to the interfaces thereto specific for a CRT G09G1/165; for a flat panel G09G3/2092
• 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 21/4126 The peripheral being portable, e.g. PDAs or mobile phones
• CPC Class Codes: H04N 21/41415 involving a public display, viewable by several users in a public space outside their home, e.g. movie theatre, information kiosk
• CPC Class Codes: H04N 21/4223 Cameras H04N23/00 takes precedence
• CPC Class Codes: H04N 21/44008 involving operations for analysing video streams, e.g. detecting features or characteristics in the video stream arrangements characterised by components specially adapted for monitoring, identification or recognition of video in broadcast systems H04H60/59
• CPC Class Codes: H04N 21/4728 for selecting a Region Of Interest [ROI], e.g. for requesting a higher resolution version of a selected region

Abstract

Visual data is presented on a display surface that is visible to users. Visual content presented by a user with a handheld data projector on an image input surface. The detected image is stored and then presented to the user on the display surface. Corresponding apparatus, method and computer programs are disclosed.

Claims

1. An apparatus comprising:

a display configured to present visual data on a display surface that is visible to users;

an image capture unit configured to capture images of an image input surface that is visible to the users; and

a control unit configured to detect visual content presented by a user with a handheld data projector on the image input surface and to cause presenting of the detected image on the visible surface.

2. The apparatus of claim 1, wherein the display surface comprises the image input surface.

3. The apparatus of claim 1, wherein the display surface is the image input surface.

4. The apparatus of claim 1, wherein the control unit is further configured to cause storing of the detected image in a memory.

5. The apparatus of claim 1, wherein the determining of visual content is based on predetermined a triggering event.

6. The apparatus of claim 5, wherein the triggering event is selected from a group consisting of:

detecting visual content that is sufficiently well focused;

detecting an image or video that is kept sufficiently still with relation to the display surface;

detecting an optical sign provided by the user;

detecting an acoustic signal; and

detecting actuation of a dedicated or soft key associated or communicatively connected to the apparatus.

7. The apparatus of claim 1, wherein the control unit is further configured to cause the display to present the visual content as if the visual content were burned to the display when presented by the user.

8. The apparatus of claim 1, wherein the control unit is further configured to maintain presentation of the captured items of visual content only for a given presentation period.

9. The apparatus of claim 8, wherein the control unit is further configured to gradually remove the visual content from the display.

10. The apparatus of claim 8, wherein the control unit is further configured to provide a visual indication of the remaining part of the given presentation period.

11. The apparatus of claim 8, wherein the control unit is further configured to allow users, during the given presentation period, to increase or decrease the given presentation period.

13. The apparatus of claim 1, further comprising a communication interface configured to exchange visual content with one or more auxiliary devices.

14. The apparatus of claim 1, further comprising a moderation circuitry configured to enable approving of the visual content before the visual content is presented for a substantial period of time on the display surface.

17. The apparatus of claim 1, wherein the image capture unit is further configured to detect permission content and the control unit is further configured to subject presentation of the visual content to the detecting of the permission content.

12. (canceled)

15. (canceled)

16. (canceled)

18. A method comprising:

presenting visual data on a display surface that is visible to users;

capturing images of an image input surface that is visible to the users;

detecting visual content presented by a user with a handheld data projector on the image input surface; and

presenting the detected image on the display surface.

19. The method of claim 18, further comprising using of the display surface as the image input surface.

20. The method of claim 18, wherein the determining of visual content is based on predetermined a triggering event.

31. A computer program product comprising a non-transitory computer readable storage medium having computer executable program code stored thereon, wherein said program code is configured to, when executed, cause an apparatus to perform the method of claim 18.

21. (canceled)

22. (canceled)

23. (canceled)

24. (canceled)

25. (canceled)

26. (canceled)

27. (canceled)

28. (canceled)

29. (canceled)

30. (canceled)

32. A system comprising:

a memory configured to store visual content; and

a portable projector configured to project the visual content onto an image input surface of an apparatus,

wherein the apparatus comprises;

a display configured to present visual data on a display surface that is visible to users;

an image capture unit configured to capture images of an image input surface that is visible to the users; and

a control unit configured to detect visual content presented by a user with a handheld data projector on the image input surface and to cause presenting of the detected image on the visible surface; and

wherein the system further comprises;

a user interface configured receive commands from a user and to enable controlling of the portable projector to project the visual content onto the image input surface responsive to receiving of a corresponding command from the user.

33. The system of claim 32, wherein the projector is further configured to project permission content onto the image input surface so as to authorize transfer of the visual content to the apparatus.

34. (canceled)

35. (canceled)

36. (canceled)