Computer graphics processing and selective visual display system – Computer graphic processing system – Plural graphics processors
Patent
1997-04-14
2000-02-01
Luu, Matthew
Computer graphics processing and selective visual display system
Computer graphic processing system
Plural graphics processors
345508, 345511, G09G 500
Patent
active
060209003
ABSTRACT:
One aspect of the invention relates to a method for synchronizing control signals with scaled digital video data. In one version of the invention, the method includes the steps of transferring digitized video data from a digitizer to a video scaler which stores the digitized video data to form pixel data and generates a pixel qualifier signal to indicate when pixel data is valid; storing the pixel data into a field memory in response to the pixel qualifier signal from the video scaler; storing control signal data in a control memory in response to the pixel qualifier signal, the control signal data being representative of control signals provided by the video scaler, such that a correspondence is created between the pixel data stored in the field memory and the control signal data stored in the control memory; and transferring the pixel data stored in the field memory and the control signal data stored in the control memory to a bus interface unit, the bus interface unit being coupled to a data bus of a host processor, such that the correspondence between the pixel data and the control signal data is maintained during the transfer.
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Flurry Gregory Alan
Muyshondt Jorge Enrique
Wilkie Bruce James
Dillon Andrew J.
Emile Volel
International Business Machines - Corporation
Luu Matthew
Piziali Jeff
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