Patent ID: 6084568
Filing Date: 2000-07-04
Classification: G09G,H04N

Abstract:
A device for flicker filtering a plurality of non-interlaced lines containing graphics data to form a plurality of interlaced lines, the device programmable to combine either two or three non-interlaced lines to form each interlaced line, the device comprising:a data packer having an input and two outputs for converting data from an external format to an internal format, the two outputs adapted to write data in the internal format to a first line buffer and to a second line buffer respectively;a data unpacker having two inputs and a first and a second output for converting data from the internal format to the external format, the two inputs adapted to receive data read from the first line buffer and from the second line buffer respectively, and the first output adapted to output data in the external format; anda filter circuit having two inputs and an output for combining data received at the two inputs into filtered data, the first input adapted to receive graphics data in the external format, the second input coupled to receive data from the second output of the data unpacker, and the output of the filter circuit coupled to send the filtered data in the external format to the input of the data packer.