DIFF Main Group
G11C 19/00 Digital stores in which the information is moved stepwise, e.g. shift registers
Introduced: September 1968
Of 11 combined children, 10 exist in both systems.
1 codes are CPC-only extensions.
3 shared codes have differing titles between IPC and CPC.
IPC defines codes here since 1974.
Child Classifications
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- G11C 19/02 using magnetic elements (G11C19/14 takes precedence) since 1974 IPC+CPC Available in IPC and CPC
- G11C 19/12 using non-linear reactive devices in resonant circuits since 1974 IPC+CPC Available in IPC and CPC
- G11C 19/14 using magnetic elements in combination with active elements, e.g. discharge tubes, semiconductor elements since 1974 IPC+CPC Available in IPC and CPC
- G11C 19/18 using capacitors as main elements of the stages since 1974 +1 CPC IPC+CPC Available in IPC and CPC
- G11C 19/20 using discharge tubes (G11C19/14 takes precedence) since 1974 +3 CPC IPC+CPC Available in IPC and CPC
- G11C 19/28 using semiconductor elements (G11C19/14, G11C19/36 take precedence) since 1974 +2 CPC IPC+CPC Available in IPC and CPC
- G11C 19/30 using opto-electronic devices, i.e. light-emitting and photoelectric devices electrically- or optically-coupled since 1974 IPC+CPC Available in IPC and CPC
- G11C 19/34 using storage elements with more than two stable states represented by steps, e.g. of voltage, current, phase, frequency since 2000 IPC+CPC Available in IPC and CPC
- G11C 19/38 two-dimensional [2D], e.g. horizontal and vertical shift registers since 2000 IPC+CPC Available in IPC and CPC