Patent ID: 6459498
Filing Date: 2002-10-01
Classification: G06K

Abstract:
A data transmission apparatus comprising:a discriminator, adapted to discriminate, for each one of a plurality of pieces of data representing an image provided in a frame, whether the one piece of data is a first type of data, which is to be developed into bit map data in a bit map area corresponding to the frame, or a second type of data, which is not to be developed into bit map data; a developer, adapted to develop the first type of data into bit map data in the bit map area in response to the discrimination made by said discriminator; a generator, adapted to generate layout information of the second type of data in the frame, wherein variation or rotation of the bit map data developed by said developer can be directed in the layout information; a first compressor, adapted to compress the bit map data developed by said developer in a first compression mode; a second compressor, adapted to compress the second type of data in a second compression mode; and a transmitter, adapted to transmit the bit map data compressed by said first compressor, the layout information generated by said generator, and the second type of data compressed by said second compressor separately to an external apparatus.