Video apparatus using several video signal sources and...

Video apparatus with video signal detection and respective...

Video display apparatus and method for controlling the switching

Video display apparatus for displaying a plurality of video sign

Video line connection apparatus for adaptively connecting...

Video output apparatus and output video changeover control...

Video signal distribution system

Video signal processing apparatus with matrix switching capabili

Video signal selection circuit

Video signal timing in a multi-format environment

Video switcher apparatus with back-up system

Video switching and mix/effecting equipment

Video switching apparatus for switching between a plurality...

Video switching circuit and television receiver incorporating th

Video switching detecting circuit

Video switching systems and methods

Video/audio signal switching circuit and method