Synchronising arrangements

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Time-division multiplex systems > Details > Synchronising arrangements

CPC:

Time-division multiplex systems (H04J14/00 takes precedence; relay systems H04B7/14; selecting techniques H04Q) > Details (electronic switching or gating H03K17/00) > Synchronising arrangements

CPC subdivides this area 4x more granularly than IPC with 3 additional codes.

3 codes are CPC-only extensions.

IPC defines codes here since 1980.

Child Classifications

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H04J 3/0602 +3 CPC CPC only CPC only
H04J 3/062 +3 CPC CPC only CPC only
H04J 3/0635 +5 CPC CPC only CPC only
H04J 3/07 using pulse stuffing for systems with different or fluctuating information rates since 1980 +2 CPC IPC+CPC Available in IPC and CPC