ข้อมูลสัญลักษณ์จำแนกการออกแบบผลิตภัณฑ์ระหว่างประเทศ


รหัส / code คำอธิบาย / code name Version
H03L0007083000 the reference signal being additionally directly applied to the generator (direct frequency synchronisation without loop H03L0007240000) 1
H03L0007085000 concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal (H03L0007100000 takes precedence;frequency or phase detection comparison in general H03D0003000000, H03D0013000000) 1
H03L0007087000 using at least two phase detectors or a frequency and phase detector in the loop 1
H03L0007089000 the phase or frequency detector generating up-down pulses (H03L0007087000 takes precedence);; 1
H03L0007091000 the phase or frequency detector using a sampling device (H03L0007087000 takes precedence);; 1
H03L0007093000 using special filtering or amplification characteristics in the loop (H03L0007087000-H03L0007091000; take precedence);; 1
H03L0007095000 using a lock detector (H03L0007087000 takes precedence);; 1
H03L0007097000 using a comparator for comparing the voltages obtained from two frequency to voltage converters 1
H03L0007099000 concerning mainly the controlled oscillator of the loop 1
H03L0007100000 for assuring initial synchronisation or for broadening the capture range 1
H03L0007107000 using a variable transfer function for the loop, e.g. low pass filter having a variable bandwidth 1
H03L0007113000 using frequency discriminator 1
H03L0007120000 using a scanning signal (tuning circuits with automatic scanning over a band of frequencies H03J0007180000) 1
H03L0007140000 for assuring constant frequency when supply or correction voltages fail 1
H03L0007160000 Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop 1