| 摘要 |
A transmission system for minimizing the visibility of ghost images develops a transmission signal having groups of video information alternately reversed at the group rate. The resultant signal corresponds to a signal generated by scanning an image in one direction for a predetermined time and scanning the image in the opposite direction for a predetermined time. The transmitted signal and any ghost signals received by a receiver result in a pair of ghost images, one on each side of the real image. The visibility of the ghost image is reduced by approximately one-half. In one version, video processing is reversed on a horizontal line basis. In the field version of the invention, video processing is reversed for each successive field and successive pairs of fields are averaged in the receiver to minimize flicker of the ghost images.
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