LEITCH

AUDIO/VIDEO SIGNAL PROCESSING AND DISTRIBUTION EQUIPMENT, NAMELY, VIDEO PROCESSING AMPLIFIERS, INTERVAL ADDER-DELETERS, VERTICAL INTERVAL PROCESSORS, DIGITAL FRAME SYNCHRONIZERS, VIDEO DISTRIBUTION AMPLIFIERS, PULSE DISTRIBUTION AMPLIFIERS, AUDIO DISTRIBUTION AMPLIFIERS, AUDIO/VIDEO SWITCHERS AND COMPUTER-BASED DIGITAL VIDEO RECORDING/PLAYBACK UNITS; SYNCHRONIZING PULSE GENERATORS, VIDEO TEST SIGNAL GENERATORS AND CONTROLLERS THEREFOR; AUDIO/VIDEO SATELLITE SIGNAL SCRAMBLER AND DESCRAMBLER UNITS; AND MASTER CLOCKS, AND SLAVE CLOCKS