A transform generator (20) has an input/output port (22). Coupled to the input/output port (22) is a controller (24). The input/output port (22) receives input transforms and data strings and outputs new transforms. A look up memory (26) is coupled to the controller (24) and is used to determine the...http://www.google.com.hk/patents/US5942002?utm_source=gb-gplus-share專利 US5942002 - Method and apparatus for generating a transform