发明名称 PROJECTOR WITH DISTORTION CORRECTING FUNCTION
摘要 <p><P>PROBLEM TO BE SOLVED: To provide a projector which automatically performs correction in an oblique direction to a screen with ease. <P>SOLUTION: The projector comprises an image distortion correction circuit for correcting a distortion of an image by deforming display on a display device, and an image sensor capable of picking up a projected and displayed image and a screen installed in the vicinity of a projection lens. A distance between a plurality of points on a display screen of the projector unit and the projector unit is calculated from the image picked up by the image sensor to detect a positional relationship between the projector unit and the screen, and an image is displayed in a target shape on the screen by the image distortion correction circuit in accordance with detected positional relationship information. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p>
申请公布号 JP2005318652(A) 申请公布日期 2005.11.10
申请号 JP20050165494 申请日期 2005.06.06
申请人 NEC VIEWTECHNOLOGY LTD 发明人 MOCHIZUKI KAZUO
分类号 G03B21/00;H04N5/74;H04N9/31;(IPC1-7):H04N5/74 主分类号 G03B21/00
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