Method and system for time-multiplexed shared display

• US 8,446,462 B2
• Filed: 10/15/2009
• Issued: 05/21/2013
• Est. Priority Date: 10/15/2009
• Status: Active Grant

• Current Assignee: AT&T Intellectual Property I LP (AT&T, Inc.)
• Original Assignee: AT&T Intellectual Property I LP (AT&T, Inc.)
• Inventors: Shahraray, Behzad, Gibbon, David, Liu, Zhu, Renger, Bernard
• Primary Examiner(s): HIGA, BRENDAN Y
• Application Number:
  US12/579,937
• Publication Number:
  US 20110090233A1
• Time in Patent Office: 1,314 Days
• Field of Search: 348 42- 60, 380/54, 380/210, 345/629
• US Class Current: 348/56
• CPC Class Codes: G02B 30/24 involving temporal multiplexing, e.g. using sequentially activated left and right shutters
• CPC Class Codes: G09G 2358/00 Arrangements for display data security
• CPC Class Codes: G09G 3/003 to produce spatial visual effects
• CPC Class Codes: G09G 5/397 Arrangements specially adapted for transferring the contents of two or more bit-mapped memories to the screen simultaneously, e.g. for mixing or overlay G09G5/02 takes precedence
• CPC Class Codes: H04N 3/02 by optical-mechanical means only H04N3/36 takes precedence

Abstract

A method is provided for sharing a display. The method includes displaying periodically a first image sequence on the display in synchronicity with a first signal, and displaying periodically a second image sequence on the display in synchronicity with a second signal. The method also includes selecting by a user the first image sequence for viewing, and shuttering periodically a set of goggles for the user in synchronicity with the first signal. A method is provided for sharing a display. The method includes displaying periodically a private image sequence on the display in synchronicity with a first signal, and displaying periodically a non-private image sequence on the display. In the method, the private image sequence and the non-private image sequence combine to form a public image sequence on the display. A system is provided for sharing a display.

Claims

1. A method for sharing a display, comprising:

displaying periodically a private image sequence on the display in synchronicity with a first signal, wherein the private image sequence displays first content in a first region of the display and second content in a second region of the display; and

displaying periodically a non-private image sequence on the display, wherein the private image sequence is not displayed while displaying the non-private image sequence, wherein the non-private image sequence displays the first content in the first region of the display and a negative image of the second content in the second region of the display;

wherein the private image sequence and the non-private image sequence combine to form a public image sequence on the display, the public image sequence including the first content appearing in the first region of the display and a uniform gray content appearing in the second region of the display, such that the first content and the uniform gray content are viewable to a user without use of a set of shuttering goggles, and the first content and the second content are viewable to a user using a set of shuttering goggles shuttering in synchronicity with the first signal.

2. The method of claim 1, wherein the private image sequence includes a black image sequence displayed in a third region of the display causing content displayed in the third region of the display in the non-private image sequence to appear in the third region of the display in the public image sequence.

3. The method of claim 1, further comprising shuttering periodically the set of goggles in synchronicity with the first signal.

4. The method of claim 1, further comprising:

displaying periodically a second private image sequence on the display in synchronicity with a second signal, wherein the second private image sequence displays third content in the second region of the display;

wherein the non-private image sequence further displays an inverse image of the third content in the second region of the display.

5. The method of claim 4, further comprising:

receiving a selection, by the user, of one of the private image sequence and the second private image sequence for viewing; and

shuttering periodically the set of goggles for the user in synchronicity with the one of the first signal and the second signal corresponding to the one of the private image sequence and the second private image sequence selected.

6. The method of claim 1, wherein the displaying periodically of the private image sequence and the non-private image sequence is performed alternately.

7. The method of claim 1, wherein:

the private image sequence is a private moving image sequence; and

the non-private image sequence is a public moving image sequence.

8. The method of claim 1, wherein:

the displaying periodically of the private image sequence includes displaying periodically a private right image sequence on the display in synchronicity with a first right signal and displaying periodically a private left image sequence on the display in synchronicity with a first left signal;

the shuttering periodically of the set of goggles includes shuttering periodically a right eye goggle of the set of goggles in synchronicity with the first right signal and shuttering periodically a left eye goggle of the set of goggles in synchronicity with the first left signal; and

the private right image sequence and the private left image sequence combine to form a stereoscopic image sequence.

9. An apparatus for sharing a display, comprising:

a processor; and

a memory to store computer program instructions, the computer program instructions when executed on the processor cause the processor to perform operations comprising;

displaying periodically a private image sequence on the display in synchronicity with a first signal, wherein the private image sequence displays first content in a first region of the display and second content in a second region of the display; and

displaying periodically a non-private image sequence on the display, wherein the non-private image sequence displays the first content in the first region of the display and a negative image of the second content in the second region of the display;

wherein the private image sequence and the non-private image sequence combine to form a public image sequence on the display, the public image sequence including the first content appearing in the first region of the display and a uniform gray content appearing in the second region of the display, such that the first content and the uniform gray content are viewable to a user without use of a set of shuttering goggles, and the first content and the second content are viewable to a user using a set of shuttering goggles shuttering in synchronicity with the first signal.