A fixed pattern detection device in which the device is fed as a received signal with a pattern of a length of N chips. The received signal is obtained by dividing and re-arraying each of K (integer) symbols in terms of a chip period as a unit, each symbol being spread with the spread code (PN) at a...http://www.google.de/patents/US6882682?utm_source=gb-gplus-sharePatent US6882682 - Fixed pattern detection apparatus
