Patent ID: 6020900
Filing Date: 2000-02-01
Classification: G09G

Abstract:
A method for aligning control signal data with pixel data, the method comprising:transferring digitized video data from a digitizer to a video scaler which scales 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; andtransferring 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.