| 摘要 |
A system for enhancing the clarity of video images by changing the pulse response characteristics. A correcting signal that is proportional to the slope of the rise time is generated, processed and then added to the original signal. The combined signal is then monitored with a device that has the ability to check for the presence of overshoots on fast rise time high amplitude signals. When such overshoots are detected, the system switches to a component of the signal which has no overshoot for the duration in time that the overshoot exists, thereby greatly diminishing or eliminating the overshoots.
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