Arrangement for checking the parity of parity-bits containing bit groups

摘要

A logic circuit for checking the parity of many bit groups simultaneously and jointly. The parity bits generated by the parity generators are interchanged crosswise, combined with the parity bits contained in the bit groups and applied to a single common output terminal. Consequently, only one specific output must be checked. The checking circuit itself is checked by inverting one of the parity generators periodically.