A frame-synchronous reproducing circuit (10) includes a BIC status register (20) of six stages, and a BIC status signal (c) from each stage of the register is applied to a BIC pattern determination circuit (24) in which the BIC status signal (c) and a BIC changing pattern being stored in ...http://www.google.de/patents/US5719873?utm_source=gb-gplus-sharePatent US5719873 - Frame-synchronous reproducing circuit
