A trap matrix searches the entire contents of a data stream for a pattern that matches the pattern for a search term. In those circumstances where there is a match between patterns of the data stream and the search term, the method and system can proceed to an exact match operation. In particular, a...http://www.google.com.hk/patents/US6959297?utm_source=gb-gplus-share專利 US6959297 - System and process for searching within a data stream using a pointer matrix and a trap matrix