Abstract: An analog video interface for a digital video display, comprising an analog video input for receiving at least one analog video signal with composite or separate horizontal and vertical deflection signals; digitizing apparatus for digitizing the analog video signal; apparatus for generating a basic clock signal having a frequency at least n times a desired video frequency, where n.gtoreq.1 and for generating control signals for the digital display and a sampling clock signal for the digitizing means in synchronization with the basic clock signal. The video interface further includes determining the actual video frequency of the analog video signal from the actual received video signals and a programmable frequency synthesizer responsive to the actual video frequency for synthesizing the basic clock signal having a frequency at least n times the determined actual video frequency where n.gtoreq.1.

Abstract: The invention relates to a video display unit (10) comprising a built-in power supply (5) and at least one electrically controlled power switch (4) for connecting mains voltage to the power supply. The power switch comprises at least one electrically controlled switch (4). In addition, the display unit comprises a control circuit (6) which closes and opens said at least one switch (4) for switching on and off the display unit in response to the state of at least one video or deflection signal received by the display unit or a command received via a communication channel (9) utilizing the signals of the video interface.