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US 2011/0254935 A1Published application
Rf signal for 3d frame synchronization for 3d shutter glasses
AssigneeXpanD, Inc.
InventorsBoyd MacNaughton, Rodney W. Kimmell, David W. Allen
Life of this patent
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Abstract
A viewing system for viewing video displays having the appearance of a three dimensional image.
Claims41
A method of operating a display device comprising an internal clock for use with 3D glasses having left and right shutters, comprising:
- detecting a 3D synchronization signal for the display device corresponding to a display frame;
- and
- if the 3D synchronization signal for the display device is detected, then determining an actual time value for the clock of the display device.
A method of synchronizing the operation of 3D glasses having left and right shutters with a display device, comprising:
- initially synchronizing the operation of the 3D glasses with the operation of the display device by transmitting synchronization information to the 3D glasses;
- and
- periodically synchronizing the operation of the 3D glasses with the operation of the display device by transmitting synchronization information to the 3D glasses;
- wherein the received synchronization information comprises one or more of the following:
- information regarding the display device type;
- information regarding the operating frequency of the display device;
- information regarding the opening and closing sequence of the shutters of the 3D glasses;
- information regarding a 3D display format of the display device;
- information regarding an actual display clock time value for a beginning of a presentation of left and right images within the display frame;
- and
- information regarding a calculated display clock time value for the next beginning of the presentation of left and right images within the display frame.
8 more elements
A method of operating 3D glasses having left and right shutters, comprising:
- initially synchronizing the operation of the 3D glasses with the operation of a display device by receiving synchronization information at the 3D glasses;
- and
- periodically resynchronizing the operation of the 3D glasses with the operation of the display device by receiving synchronization information at the 3D glasses;
- wherein the synchronization information comprises one or more of the following:
- information regarding the display device type;
- information regarding the operating frequency of the display device;
- information regarding the opening and closing sequence of the shutters of the 3D glasses;
- information regarding a 3D display format of the display device;
- information regarding an actual display clock time value for a beginning of a presentation of left and right images within the display frame;
- and
- information regarding a calculated display clock time value for the next beginning of the presentation of left and right images within the display frame.
8 more elements
Dependencies are inferred from the claim text.