H
ELECTRICITY
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H03
ELECTRONIC CIRCUITRY
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H03L
AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
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7/00
Automatic control of frequency or phase; Synchronisation
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H03L7/06
using a reference signal applied to a frequency- or phase-locked loop
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H03L7/08
Details of the phase-locked loop
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H03L7/081
provided with an additional controlled phase shifter
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H03L7/0812
and where no voltage or current controlled oscillator is used
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H03L7/0814
the phase shifting device being digitally controlled
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