for assuring constant frequency when supply or correction voltages fail

Introduced: January 1980

Full Title

Automatic control of frequency or phase; Synchronisation > using a reference signal applied to a frequency- or phase-locked loop > Details of the phase-locked loop > for assuring constant frequency when supply or correction voltages fail

Of 3 combined children, 0 exist in both systems.

3 codes are CPC-only extensions.

Child Classifications

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H03L 7/141 CPC only CPC only
H03L 7/143 +1 CPC CPC only CPC only
H03L 7/146 +1 CPC CPC only CPC only