Automatic control of frequency or phase; Synchronisation

Introduced: January 1980

Last revised: January 2006

Classification Context

Section:: ELECTRICITY
Class:: ELECTRONIC CIRCUITRY
Subclass:: AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES

Related Keywords

automatic CONTROL(S) of generators of electronic oscillations or pulsesautomatic control of radio FREQUENCYPHASE-LOCKED LOOP (PLL) for frequency or phase controlSYNCHRONISATION of generators of electronic oscillations or pulses

4 direct subcodes

Child Classifications

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H03L 7/02 using a frequency discriminator comprising a passive frequency-determining element
H03L 7/06 using a reference signal applied to a frequency- or phase-locked loop
H03L 7/24 using a reference signal directly applied to the generator
H03L 7/26 using energy levels of molecules, atoms, or subatomic particles as a frequency reference