DIFF Subgroup
H03K 23/502 Full Title
Pulse counters comprising counting chains; Frequency dividers comprising counting chains (H03K29/00 takes precedence) > Gating or clocking signals applied to all stages, i.e. synchronous counters > using bi-stable regenerative trigger circuits (H03K23/42 - H03K23/48 take precedence)
Of 2 combined children, 0 exist in both systems.
2 codes are CPC-only extensions.