Ross Video/live Production Technology

Norman Wong

David Allan Ross

Troy David English

Kizito Gysbertus Antonius Van Asten

Alun John Fryer

Brian James Ford

Julio Alberto Velandia Rodriguez

Various improvements for video production switchers are disclosed. In a user input module, a Link button is operable to link key functions with a user controllable input device. A multicolor lighting arrangement may be provided, and possibly calibrated, for illuminating each button of a switcher with a controllable color and/or intensity. In an improved Pulse-Width Modulation (PWM) scheme, a PWM output is dependent on a pseudo-random number and a threshold. A display on a keyer module may be used to provide indications of a key source and type currently associated with the keyer module. A switcher menu system may be enhanced by providing a first display for accessing a full menu system, and a second display for accessing at least a portion of the full menu system. In a modular switcher panel, a panel structure carries button modules, at least one of which is interchangeable without displacing other button modules.

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Ottawa, Canada

Norman Wong