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)

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 > 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)

Child Classifications

Navigate with arrow keys, Enter to open

• H03L 7/087 using at least two phase detectors or a frequency and phase detector in the loop
• H03L 7/089 the phase or frequency detector generating up-down pulses (H03L7/087 takes precedence)
• H03L 7/091 the phase or frequency detector using a sampling device (H03L7/087 takes precedence)
• H03L 7/093 using special filtering or amplification characteristics in the loop (H03L7/087 - H03L7/091 take precedence)
• H03L 7/095 using a lock detector (H03L7/087 takes precedence)
• H03L 7/097 using a comparator for comparing the voltages obtained from two frequency to voltage converters