Testing of digital circuits

Introduced: January 1995

Full Title

Full titles differ between systems:

IPC:

CPC:

Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere ( testing line transmission systems H04B3/46; testing or measuring semiconductors or solid state devices during manufacture ) > Testing of electronic circuits, e.g. by signal tracer ( testing for short-circuits, discontinuities, leakage or incorrect line connection G01R31/50; checking computers G06F11/00; checking static stores for correct operation G11C29/00 ) > Testing of digital circuits

CPC subdivides this area 7x more granularly than IPC with 19 additional codes.

19 codes are CPC-only extensions.

1 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 1995.

Child Classifications

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G01R 31/31701 CPC only CPC only
G01R 31/31702 CPC only CPC only
G01R 31/31703 CPC only CPC only
G01R 31/31704 CPC only CPC only
G01R 31/31705 CPC only CPC only
G01R 31/31706 CPC only CPC only
G01R 31/31707 CPC only CPC only
G01R 31/31708 +3 CPC CPC only CPC only
G01R 31/31712 +4 CPC CPC only CPC only
G01R 31/31718 CPC only CPC only
G01R 31/31719 CPC only CPC only
G01R 31/3172 CPC only CPC only
G01R 31/31721 CPC only CPC only
G01R 31/31722 CPC only CPC only
G01R 31/31723 CPC only CPC only
G01R 31/31724 CPC only CPC only
G01R 31/31725 +1 CPC CPC only CPC only
G01R 31/31727 CPC only CPC only
G01R 31/31728 CPC only CPC only
G01R 31/3173 Marginal testing since 1995 IPC+CPC Available in IPC and CPC