Method and apparatus for providing three-dimensional content
AssigneeGeneral Instrument Corporation
InventorsMao-Hsiung Hung, Rahul R. Sinha
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Abstract
Methods and apparatuses for providing three-dimensional (3D) content via a portable multimedia device is disclosed. A portable multimedia device generates a composite video signal from 3D content. The portable multimedia device generates a synchronization signal for the composite video signal. The synchronization signal is transmitted from the portable multimedia device to active 3D glasses. Methods for manually and automatically calibrating a synchronization signal for three-dimensional (3D) content are also disclosed.
Claims20
A method for providing three-dimensional (3D) content via a portable multimedia device, comprising:
- generating, by the portable multimedia device, a composite video signal from 3D content;
- generating, by the portable multimedia device, a synchronization signal for the composite video signal;
- transmitting the synchronization signal from the portable multimedia device to active 3D glasses.
A portable multimedia device for providing three-dimensional (3D) content, comprising:
- a processor configured to generate a composite video signal from 3D content;
- the processor configured to generate a synchronization signal for the composite video signal;
- a transmitter that transmits the synchronization signal from the portable multimedia device to active 3D glasses.
A method for automatically calibrating a synchronization signal for three-dimensional (3D) content, comprising:
- generating a first pulse from a portable multimedia device for presenting or rendering as a second pulse by a display device;
- receiving, by the portable multimedia device, the second pulse;
- determining a time difference between transmission of the first pulse and reception of the second pulse by the portable multimedia device;
- using the time difference to calibrate the synchronization signal.
Active three-dimensional (3D) glasses for viewing 3D content on a display, comprising:
- a receiver configured to receive a synchronization signal from a portable media device;
- a processor that uses the synchronization signal to trigger left eye and right eye modes of the active 3D glasses;
- and
- a short range wireless protocol receiver, wherein the short range wireless protocol receiver comprises a Bluetooth receiver.
A method for manually calibrating a synchronization signal for three-dimensional (3D) content, comprising:
- generating a video signal;
- sending the video signal to a display;
- the video signal having further characteristics as follows when calibration is achieved:
- when 3D glasses are off, a top portion of the video signal is a first color, a bottom portion of the video signal is a second color, and a circular area in a center portion of the video signal on the display is a third color, the third color being a combination of the first color and the second color,
- when 3D glasses are on and a left eye of a user is open and a right eye of the user is closed, the top portion of the video signal is the first color, the bottom portion of the video signal is blank, and the circular area in the center portion of the video signal on the display is the first color,
- when 3D glasses are on and the left eye of the user is closed and the right eye of the user is open, the top portion of the video signal is blank, the bottom portion of the video signal is the second color, and the circular area in the center portion of the video signal on the display is the second color.
Dependencies are inferred from the claim text.