发明名称 |
Image alignment apparatus for cathode ray tube display devices. |
摘要 |
<p>Apparatus for image alignment in cathode ray tube display devices, the apparatus having light detectors arranged such that light from the cathode ray tube screen impinges on them and which provide objective, rather than subjective, data regarding the position of features of the image which data may be used to calculate the necessary adjustments to the cathode ray tube in order that it be correctly aligned. <IMAGE></p> |
申请公布号 |
EP0453665(A1) |
申请公布日期 |
1991.10.30 |
申请号 |
EP19900304324 |
申请日期 |
1990.04.23 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
MILLER, IAN;MACDONALD, ALAN |
分类号 |
G09G1/00;H04N17/04 |
主分类号 |
G09G1/00 |
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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