Patent ID: 6441857
Filing Date: 2002-08-27
Classification: H04N

Abstract:
An apparatus for converting an input video format to an output video format, wherein the input video format comprises a plurality of lines of pixel data, each line having a horizontal resolution of a predetermined number of pixels, and the output video format comprises a composite video waveform having a control portion followed by an active video portion, the apparatus comprising:input means for receiving the pixel data from a video source; an encoder for generating the output video format from the input pixel data, the encoder receiving the pixel data from the input means one pixel at a time and encoding each pixel into the active video portion of the waveform at an encoder clock rate, the encoder further comprising control means for generating and encoding control signals into the control portion of the waveform at the encoder clock rate; an encoder clock generator that can generate a range of encoder clock rates, wherein the generator calculates and generates the encoder clock rate based on the horizontal resolution of the input pixel data, said rate being sufficient to encode all pixel data from one line within a viewable area of the active video portion of the waveform without physically scaling or altering the pixels; and output means for outputting the composite video waveform to a video receiver.