| 摘要 |
The system for automatically controlling image patterns of a computer-controlled television by feeding back the image patterns displayed on the CRT screen, includes a video camera (16) faced to the CRT screen of the CCTV (12) and for converting the image pattern into an electrical composite video signal. A matrix (18) separates the composite video signal into the respective R,G,B components, a first, second and third A/D converters (20,22,24) for respectively R,G,B components into corresp. R,G,B digital signals. A pattern recogniser (28) compares the R,G,B components with reference values programmed in advance. A control computer (30) provides deflection equalising data to the CCTV to equalise the image pattern distorted.
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