Automatic color-sync polarity control

Automatic level control (ALC) for video signals

Device for measuring period of synchronizing signal and...

Image processing apparatus working in response to frequency...

Method and apparatus for aligning and synchronizing a remote vid

Method and apparatus for detecting change in video source...

Method and apparatus for determining a level of a video signal

Method and apparatus for measuring a radio frequency signal...

Method and apparatus for providing adaptive horizontal sync...

Method and apparatus for raster calibration

Method and apparatus of providing video synchronization

Method for assessing the quality of a television image

Sync signal self-test device and method