Computer graphics processing and selective visual display system – Display driving control circuitry
Patent
1996-10-07
1999-07-13
Wu, Xiao
Computer graphics processing and selective visual display system
Display driving control circuitry
345150, 345132, 345113, G09G 500
Patent
active
059233222
ABSTRACT:
An enhanced feature connector for an overlay board transmits and receives digital data from a video graphics array (VGA) feature connector and analog data from a video graphics array connector using a single connector. The overlay board uses an enhanced feature connector for receiving both video graphics array digital feature data and analog red, green, blue (R.G.B.) data from a video graphics array board; an overlay controller for receiving digital data such as pixel data, pixel clock, horizontal synchronization, and vertical synchronization from a digital feature connector portion of the enhanced feature connector, converting the digital data into analog red, green and blue data, and generating overlay red, green and blue data; an analog multiplexer (MUX) for sequentially selecting both an input signal of analog red, green and blue data of the overlay controller and an input signal of analog red, green and blue data of a video graphics array board (not shown), dividing the input signals, and selecting a signal corresponding to each input signal; and a monitor connector for receiving output data from both the analog multiplexer and the enhanced feature connector, and for outputting the output data to a monitor.
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Bushnell Esq. Robert E.
Samsung Electronics Co,. Ltd.
Wu Xiao
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