发明名称 |
Automatic video convergence system |
摘要 |
An automatic convergence system for correcting misregistration of component color images in a projection video display unit. The system comprises control circuitry for generating target characters onto a projection surface, and a locator assembly for aiming a photosensor array at the displayed target images by means of a pair of stepper motors. The photosensor array detects the position of the target images and conveys this information to a microprocessor which in response calculates appropriate correction signals for application to vertical and horizontal convergence coils of the display system for effecting convergence of the component color images.
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申请公布号 |
US5258830(A) |
申请公布日期 |
1993.11.02 |
申请号 |
US19920963286 |
申请日期 |
1992.10.19 |
申请人 |
ELECTROHOME LIMITED |
发明人 |
SCHMIDT, TERRENCE C.;KOEBEL, ALEN |
分类号 |
H04N9/28;(IPC1-7):H04N9/28 |
主分类号 |
H04N9/28 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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