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Generalized Timing Formula

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Generalized Timing Formula is a standard by VESA which defines exact parameters of the component video signal for analog VGA display interface.

The parameters defined by standard include horizontal blanking (retrace) and vertical blanking intervals, horizontal frequency and vertical frequency (collectively, pixel clock rate or video signal bandwidth), and horizontal/vertical sync polarity.

The standard was adopted in 1999, and was superseded by the Coordinated Video Timings specification in 2002.