Patent ID: 7366816

Claim:
A method for adaptively adjusting the bandwidth of a pixel data transmission channel having an input path and a plurality of parallel output paths, each output path including a buffer to hold respective portions of the pixel data, wherein pixel data are input to the input path at one of at least two alternative clock frequencies, the method comprising: determining a value representative of two or more of the buffers that contain an amount of pixel data which is less than a threshold, wherein each of the buffers provide a flag whenever the level of pixel data in a buffer is less than the threshold, the threshold corresponding with at least two pixel datum; and adjusting the transmission rate of the input path according to the representative value, the adjusting of the transmission rate being sudden and including selecting one of the alternative clock frequencies, the selected clock frequency being distinct from a current clock frequency, wherein the difference between each of the alternative clock frequencies is greater than one percent.