| 摘要 |
Methods for adjusting digital video signals, performed by an image generating device of a portable media player, are disclosed. A first signal adjustment unit reduces a resolution of a video frame to generate a reduced video frame by alternately dropping half of the scan lines of the video frame, and repeatedly drops scan lines after at least two scan lines until reaching the last scan line. The content of a first video frame is adjusted to a second video frame in response to a second signal adjustment unit before passing to the display module by the image generating device. The display module is directed to prevent adjustment of the second video frame by the first signal adjustment unit for generating a display video frame. The second video frame is adjusted by the second signal adjustment unit and output to the display module. |
