IP Library Granted Patent US 7,307,668
Granted Patent B2
US 7,307,668 · App. 10/883,113 · Granted Dec 11, 2007

Shifting letterbox video to prolong display life

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Quick Facts
Patent No.
US 7,307,668
App. No.
10/883,113
Granted
Dec 11, 2007
Kind
B2
Abstract

A system, a method and an article of manufacture for uncentering an image of a video stream on a video display is provided. The image of the video stream is displayed uncentered on a video display at a position that depends on the aspect ratio of the video stream and the aspect ratio of the display used to view the video stream. Once uncentered, the image of the video stream is not shifted for the duration of the video session unless a user provides input to change the position. Various positions of the image of a video stream are available to accommodate user preferences or to prolong the life of the video display.

Claims (88)

1. A method for displaying an image of a video stream on a display system, said method comprising:

coupling a player to a display for displaying an image of a video stream, wherein said player includes

a display buffer for buffering and processing said video stream and providing said video stream to said display; and

a processor for controlling said display buffer, wherein said processor in capable of

obtaining an aspect ratio of said display;

obtaining an aspect ratio of said video stream;

determining whether said aspect ratio of said display is different than said aspect ratio of said video stream; and

responsive to determining that said aspect ratio of said display is different than said aspect ratio of said video stream, positioning said image of said video stream on said display to uncenter said image on said display.

2. The method of claim 1 , wherein obtaining an aspect ratio of said display further comprises:

receiving said aspect ratio of said display from a remote control.

3. The method of claim 1 , wherein obtaining an aspect ratio of said video stream further comprises:

receiving said aspect ratio of said video stream from a remote control.

4. The method of claim 1 , wherein obtaining an aspect ratio of said video stream further comprises:

obtaining said aspect ratio of said video stream from a DVD video disk.

5. The method of claim 1 , wherein obtaining an aspect ratio of said video stream further comprises:

obtaining said aspect ratio of said video stream from a VHS tape.

6. The method of claim 1 , wherein positioning said image of said video stream on said display to uncenter said image on said display further comprises:

selecting a random position of said image on said display at a selected interval; and

displaying said image on said display at said random position.

7. The method of claim 6 , wherein said selected interval is the interval between power up cycles of a display system.

8. The method of claim 6 , wherein said selected interval is the interval between each time a DVD disk is played.

9. The method of claim 1 , wherein positioning said image of said video stream on said display to uncenter said image on said display further comprises:

receiving a position from a remote control; and

displaying said image on said display at a position determined by said received position from said remote control.

10. The method of claim 1 , wherein positioning said image of said video stream on said display to uncenter said image on said display further comprises:

receiving a default position from a processor of a display system; and displaying said image on said display at a position determined by said default position.

11. The method of claim 1 , wherein positioning said image of said video stream on said display to uncenter said image on said display further comprises:

receiving a position from a voice input; and

displaying said image on said display at a position determined by said position from said voice input.

12. A display system, comprising:

a display for displaying an image of a video stream;

a player coupled to said display, comprising:

a display buffer for buffering and processing said video stream and providing said video stream to said display;

a processor for controlling said display buffer, wherein said processor is configured to:

obtain an aspect ratio of said display;

obtain an aspect ratio of said video stream;

determine whether said aspect ratio of said display is different than said aspect ratio of said video stream; and

responsive to determining that said aspect ratio of said display is different than said aspect ratio of said video stream, positioning said image of said video stream on said display to uncenter said image on said display.

13. The system of claim 12 , further comprising:

a remote control; and

a remote uplink for receiving information from said remote control, wherein said remote uplink is coupled to said processor and said processor is further configured to receive said aspect ratio of said display from said remote control.

14. The system of claim 12 , further comprising:

a remote control; and

a remote uplink for receiving information from said remote control, wherein said remote uplink is coupled to said processor and said processor is further configured to receive said aspect ratio of said video stream from a remote control.

15. The system of claim 12 , further comprising:

a DVD video disk for supplying video data to a video decoder, wherein said video decoder processes said video data to produce said video stream, and wherein said processor is further configured to obtain said aspect ratio of said video stream from said DVD video disk.

16. The system of claim 12 , further comprising:

a VHS tape for supplying video data to a video decoder, wherein said video decoder processes said video data to produce said video stream, and wherein said processor is further configured to obtain said aspect ratio of said video stream from said VHS tape.

17. The system of claim 12 , wherein said processor is further configured to:

select a random position of said image on said display at a selected interval; and display said image on said display at said random position.

18. The system of claim 17 , wherein said selected interval is the interval between power up cycles of said display system.

19. The system of claim 17 , wherein said selected interval is the interval between each time a DVD disk is played.

20. The system of claim 12 , further comprising:

a remote control; and

a remote uplink for receiving information from said remote control, wherein said remote uplink is coupled to said processor and said processor is further configured to receive a position from said remote control and display said image on said display at a position determined by said received position from said remote control.

21. The system of claim 12 , wherein said processor is further configured to display said image on said display at a default position.

22. The system of claim 12 , further comprising:

a voice activation element coupled to said processor, wherein said processor is further configured to receive a position from a voice input from said voice activation element and display said image on said display at a position determined by said position from said voice input.

23. An article of manufacture comprising a data storage medium tangibly embodying a program of machine-readable instructions executable by a digital processing apparatus to perform method steps for displaying an image of a video stream on a display, said method steps comprising:

coupling a player to a display for displaying an image of a video stream, wherein said player includes

a display buffer for buffering and processing said video stream and providing said video stream to said display; and

a processor for controlling said display buffer, wherein said processor in capable of

obtaining an aspect ratio of said display;

obtaining an aspect ratio of said video stream;

detennining whether said aspect ratio of said display is different than said aspect ratio of said video stream; and

responsive to determining that said aspect ratio of said display is different than said aspect ratio of said video stream, positioning said image of said video stream on said display to uncenter said image on said display.

24. The article of manufacture of claim 23 , wherein obtaining an aspect ratio of said display further comprises:

receiving said aspect ratio of said display from a remote control.

25. The article of manufacture of claim 23 , wherein obtaining an aspect ratio of said video stream further comprises:

receiving said aspect ratio of said video stream from a remote control.

26. The article of manufacture of claim 23 , wherein obtaining an aspect ratio of said video stream further comprises:

obtaining said aspect ratio of said video stream from a DVD video disk.

27. The article of manufacture of claim 23 , wherein obtaining an aspect ratio of said video stream further comprises:

obtaining said aspect ratio of said video stream from a VHS tape.

28. The article of manufacture of claim 23 , wherein positioning said image of said video stream on said display to uncenter said image on said display further comprises:

selecting a random position of said image on said display at a selected interval; and

displaying said image on said display at said random position.

29. The article of manufacture of claim 28 , wherein said selected interval is the interval between power up cycles of a display system.

30. The article of manufacture of claim 28 , wherein said selected interval is the interval between each time a DVD disk is played.

31. The article of manufacture of claim 23 , wherein positioning said image of said video stream on said display to uncenter said image on said display further comprises:

receiving a position from a remote control; and

displaying said image on said display at a position determined by said received position from said remote control.

32. The article of manufacture of claim 23 , wherein positioning said image of said video stream on said display to uncenter said image on said display further comprises:

receiving a default position from a processor of a display system; and

displaying said image on said display at a position determined by said default position.

33. The article of manufacture of claim 23 , wherein positioning said image of said video stream on said display to uncenter said image on said display further comprises:

receiving a position from a voice input; and

displaying said image on said display at a position determined by said position from said voice input.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 10, 2025
From: LENOVO PC INTERNATIONAL LIMITED
To: LENOVO SWITZERLAND INTERNATIONAL GMBH
Reel/Frame 069870/0670 →
NUNC PRO TUNC ASSIGNMENT Recorded Nov 25, 2015
From: LENOVO (SINGAPORE) PTE LTD.
To: LENOVO PC INTERNATIONAL
Reel/Frame 037160/0001 →