ข้อมูลสัญลักษณ์จำแนกการออกแบบผลิตภัณฑ์ระหว่างประเทศ


รหัส / code คำอธิบาย / code name Version
H04L0027060000 Demodulator circuits; Receiver circuits 1
H04L0027080000 Amplitude regulation arrangements 1
H04L0027100000 Frequency-modulated carrier systems, i.e. using frequency-shift keying (H04L0027320000 takes precedence);; 1
H04L0027120000 Modulator circuits; Transmitter circuits 1
H04L0027140000 Demodulator circuits; Receiver circuits 1
H04L0027144000 with demodulation using spectral properties of the received signal, e.g. by using frequency selective- or frequency sensitive elements 1
H04L0027148000 using filters, including PLL-type filters 1
H04L0027152000 using controlled oscillators, e.g. PLL arrangements 1
H04L0027156000 with demodulation using temporal properties of the received signal, e.g. detecting pulse width 1
H04L0027160000 Frequency regulation arrangements 1
H04L0027180000 Phase-modulated carrier systems, i.e. using phase-shift keying (H04L0027320000 takes precedence);; 1
H04L0027200000 Modulator circuits; Transmitter circuits 1
H04L0027220000 Demodulator circuits; Receiver circuits 1
H04L0027227000 using coherent demodulation 1
H04L0027233000 using non-coherent demodulation 1