DIFF Subgroup
H03M 1/22 pattern-reading type
Introduced: January 1985
Full Title
Full titles differ between systems:
IPC:
Analogue/digital conversion; Digital/analogue conversion > Analogue/digital converters > pattern-reading type
CPC:
Analogue/digital conversion; Digital/analogue conversion (conversion of analogue values to or from differential modulation H03M3/00) > Analogue/digital converters ( H03M1/10 take precedence) > pattern-reading type
IPC and CPC are identically structured here. All 2 subcodes exist in both systems.
IPC defines codes here since 1985.
Child Classifications
Navigate with arrow keys, Enter to open
- H03M 1/24 using relatively movable reader and disc or strip since 1985 +1 CPC IPC+CPC Available in IPC and CPC