Invention Grant
- Patent Title: Self-correcting rear projection television
- Patent Title (中): 自校正背投电视
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Application No.: US10672584Application Date: 2003-09-26
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Publication No.: US07227592B2Publication Date: 2007-06-05
- Inventor: Richard C. Waters , Jay E. Thornton , Ramesh Raskar , Mamoru Kato , Paul H. Dietz
- Applicant: Richard C. Waters , Jay E. Thornton , Ramesh Raskar , Mamoru Kato , Paul H. Dietz
- Applicant Address: US MA Cambridge
- Assignee: Mitsubishi Electric Research Laboratories, Inc.
- Current Assignee: Mitsubishi Electric Research Laboratories, Inc.
- Current Assignee Address: US MA Cambridge
- Agent Dirk Brinkman; Clifton D. Mueller; Gene V. Vinokur
- Main IPC: H04N9/28
- IPC: H04N9/28 ; H04N3/23 ; H04N9/31
Abstract:
In a rear projection television, cathode ray tubes are mounted inside an enclosure so that each cathode ray tube projects output images onto a rear projection screen using a corresponding electron beam. Calibration images are generated for each cathode ray tube. A camera, also mounted inside the enclosure, acquires an input image of each calibration image. A distortion in each input image is measured, and the output images of the cathode ray tubes are corrected by adjusting the signals controlling the corresponding electron beams according to the distortion.
Public/Granted literature
- US20050068466A1 Self-correcting rear projection television Public/Granted day:2005-03-31
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