An embodiment is a method for processing a character stream including: (a) forming, responsive to the character stream, a plurality of parallel property bit streams wherein each of the parallel property bit streams includes bit values of a particular property associated with data values of the character...http://www.google.com.hk/patents/US7400271?utm_source=gb-gplus-share專利 US7400271 - Method and apparatus for processing character streams
