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PCE
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DIFF Subgroup
H03L 7/093

using special filtering or amplification characteristics in the loop (H03L7/087 - H03L7/091 take precedence)

Introduced: January 1990

Title

Titles differ between systems:

IPC: using special filtering or amplification characteristics in the loop

CPC: using special filtering or amplification characteristics in the loop (H03L7/087 - H03L7/091 take precedence)

Full Title

Full titles differ between systems:

IPC:

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 > concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal > using special filtering or amplification characteristics in the loop

CPC:

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 > concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal (H03L7/10 takes precedence; circuits for comparing the phase or frequency of two mutually-independent oscillations H03D13/00) > using special filtering or amplification characteristics in the loop (H03L7/087 - H03L7/091 take precedence)

No child classifications to compare. This is a leaf node in both IPC and CPC.