Television – Stereoscopic – Stereoscopic display device
Patent
1997-06-03
2000-09-19
Nguyen, Chanh
Television
Stereoscopic
Stereoscopic display device
345213, 348 56, H04N 1304
Patent
active
061220000
ABSTRACT:
Method and apparatus for synchronizing vertical refresh and the display of left versus right channels in a stereoscopic, multi-display computer graphics system. Each graphics pipeline in the system is coupled to its own synchronization controller. The synchronization controllers each have a synchronization input and a synchronization output. The inputs and outputs are coupled in series to form a daisy chain. One of the synchronization controllers is designated the master, the rest are slaves. The master generates a signal that transitions when the master enters vertical front porch. The slaves pass this signal down the daisy chain. Each slave will wait at the end of its own vertical front porch for a transition on the signal. When the transition occurs, the slave immediately enters vertical sync. If no transition occurs within a predetermined time, the slave will enter vertical sync at the end of the predetermined time. The state of the synchronization signal is used by each graphics pipeline to determine which channel, left or right, will be displayed during the upcoming frame.
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Alcorn Byron A
Yee Daniel E
Hart Kevin M.
Hewlett -Packard Company
Nelson Alecia D.
Nguyen Chanh
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