by increasing duration; by decreasing duration

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Manipulation of pulses not covered by one of the other main groups of this subclass > Shaping pulses > by increasing duration; by decreasing duration

CPC:

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

IPC and CPC are identically structured here. All 3 subcodes exist in both systems.

IPC defines codes here since 1980.

Child Classifications

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H03K 5/05 by the use of clock signals or other time reference signals since 1980 IPC+CPC Available in IPC and CPC
H03K 5/06 by the use of delay lines or other analogue delay elements since 1980 +1 CPC IPC+CPC Available in IPC and CPC
H03K 5/07 by the use of resonant circuits since 1980 IPC+CPC Available in IPC and CPC