公开(公告)号：EP1869898A1

公开(公告)日：2007-12-26

申请号：EP06717833.5

申请日：2006-01-09

申请人： TTE Technology, Inc.

发明人： HOFFMAN, Brent, William

IPC分类号： H04N9/31

CPC分类号： H04N9/3123 ,  H04N9/3114

摘要： The disclosed embodiments relate to a system and method for projecting video onto a screen. A video unit (10) may comprise a color wheel (14), a light source (12) configured to project light through the color wheel (14) during a spoke time, and a digital micromirror device (18) configured to reflect the projected light (30) onto a screen (26). The method may comprise the acts of shining a generally white light (28) through a region on a color wheel (14) to create a colored light (30), the region comprising two color filters, reflecting the colored light (30) off of a micromirror disposed on a digital micromirror device (18), and projecting the reflected colored light (34) onto a screen (26).

公开(公告)号：EP1915873B1

公开(公告)日：2012-11-14

申请号：EP06763070.7

申请日：2006-04-28

申请人： TTE Technology, Inc.

发明人： HOFFMAN, Brent, William

IPC分类号： H04N9/31

CPC分类号： H04N9/3194 ,  H04N9/3114 ,  H04N9/3155

公开(公告)号：EP1915873A1

公开(公告)日：2008-04-30

申请号：EP06763070.7

申请日：2006-04-28

申请人： TTE Technology, Inc.

发明人： HOFFMAN, Brent, William

IPC分类号： H04N9/31

CPC分类号： H04N9/3194 ,  H04N9/3114 ,  H04N9/3155

摘要： The disclosed embodiments relate to a system and method for compensating for spoke light in a video unit (10). More specifically, there is provided a method comprising measuring a first light level during a non-spoke time of a color wheel (14) to generate a non-spoke light level; and setting a spoke light compensation value based on the measured non-spoke light level. There is also provided a video unit (10) comprising a light source (12) configured to generate a first light level during a non-spoke time of a color wheel (14), a photodiode assembly (26) configured to measure the first light level to generate a non-spoke light level, and a processor (20) configured to set a spoke light compensation value based on the non-spoke light level.