Above-and-below stereoscopic format with signifier
First Claim
1. A stereoscopic video system having a graphics controller providing video output to a monitor and a user observing the monitor through a selection device, wherein the video output is a plurality of video fields each having a top sub field and a bottom sub field with a blanking area therebetween, and wherein the top sub field includes a first active video area providing image content of one perspective and the bottom subfield includes a second active video area providing image content of another perspective, and wherein the blanking area provides a sync pulse to refresh the monitor, the improvement comprising:
- embedding a video code into the active video area of at least one of the plurality of sub fields, wherein the video code is configured to identify pending transmission of additional sync pulses;
electronically detecting the video code; and
controlling the selection device based on the video code detection.
20 Assignments
0 Petitions
Accused Products
Abstract
A video code is embedded into the active video area of a stereo subfield. The video code is detected using an electronic circuit and used to maintain synchrony of the selection device with perspective images. Preferably, the video code is a predetermined sequence of colors.
67 Citations
18 Claims
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1. A stereoscopic video system having a graphics controller providing video output to a monitor and a user observing the monitor through a selection device, wherein the video output is a plurality of video fields each having a top sub field and a bottom sub field with a blanking area therebetween, and wherein the top sub field includes a first active video area providing image content of one perspective and the bottom subfield includes a second active video area providing image content of another perspective, and wherein the blanking area provides a sync pulse to refresh the monitor, the improvement comprising:
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embedding a video code into the active video area of at least one of the plurality of sub fields, wherein the video code is configured to identify pending transmission of additional sync pulses; electronically detecting the video code; and controlling the selection device based on the video code detection. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A stereoscopic video system wherein a user observes a monitor through a selection device, comprising:
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a graphics controller providing video output to the monitor in the form of video fields each having a top sub field and a bottom sub field with a blanking area therebetween, wherein the top sub field includes a top active video area written with image content of one perspective and the bottom subfield includes a bottom active video area written with image content of another perspective, and wherein the blanking area is written with a first sync pulse to drive a refresh of the monitor, and wherein the video code is written into the active video area of at least one sub field, said video code configured to identify pending transmission of additional sync pulses; and an electronic circuit coupled to detect the video code in the video output and then initiate insertion of a second sync pulse at a location in one video field. - View Dependent Claims (16)
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17. A stereoscopic video system, comprising:
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a graphics controller providing video output in the form of video fields each having a top sub field and a bottom sub field with a blanking area therebetween, wherein the top sub field includes a top active video area written with image content of one perspective and the bottom subfield includes a bottom active video area written with image content of another perspective, and wherein video code is written into the active video area of at least one sub field, said video code configured to identify pending transmission of sync pulses; and an electronic circuit configured to detect the video code in the video output and insert a sync pulse in one video field. - View Dependent Claims (18)
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Specification