DIFF Subgroup
G11C 11/21 using electric elements
Introduced: July 1974
Full Title
Full titles differ between systems:
IPC:
Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor > using electric elements
CPC:
Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor (G11C14/00 - G11C21/00 take precedence) > using electric elements
IPC and CPC are identically structured here. All 7 subcodes exist in both systems.
3 shared codes have differing titles between IPC and CPC.
Child Classifications
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- G11C 11/23 using electrostatic storage on a common layer, e.g. Forrester-Haeff tubes (G11C11/22 takes precedence) since 1974 IPC+CPC Available in IPC and CPC
- G11C 11/24 using capacitors (G11C11/22 takes precedence; using a combination of semiconductor devices and capacitors G11C11/34, e.g. G11C11/40) IPC+CPC Available in IPC and CPC
- G11C 11/42 using opto-electronic devices, i.e. light-emitting and photoelectric devices electrically- or optically- coupled IPC+CPC Available in IPC and CPC