by the use of clock signals or other time reference signals

Full Title

Manipulating of pulses not covered by one of the other main groups of this subclass (circuits with regenerative action H03K3/00, H03K4/00; by the use of non-linear magnetic or dielectric devices H03K3/45) > Shaping pulses (discrimination against noise or interference H03K5/125) > by increasing duration; by decreasing duration > by the use of clock signals or other time reference signals