Polish term (edited): układ znaku

Jak np. tutaj:
"The trigger circuit 88 at the last position of the counter is a sign circuit and indicates whether the sign is forward or reverse dependent upon the algebraic sum of the number of pulses of each kind which have been entered into the counter."
http://www.google.com/patents/US2968003
Ew. "sign logic":
" The direction of counting is controlled by signals received from the sign logic SL via SCNI signal line."
http://www.google.co.in/patents/US3480943

Sequential because it remembers current state:

What is a sequential logic circuit?

A combinational circuit does not have memory as its output is determined only by the present input, and not by any previous input. The output cannot reflect previous input level conditions.
In contrast, sequential circuits—the subject of this session—do have memory. The output of a sequential circuit is determined both by the present input and previous input.

What specifically does a sequential circuit need in order to reflect past input into its present output? Clearly, it needs a memory element. Such a memory element is called a flip-flop.

http://am.renesas.com/edge_ol/engineer/06/index.jsp