ข้อมูลสัญลักษณ์จำแนกการออกแบบผลิตภัณฑ์ระหว่างประเทศ


รหัส / code คำอธิบาย / code name Version
H04B0001640000 Volume compression or expansion arrangements 1
H04B0001660000 for reducing bandwidth of signals; for improving efficiency of transmission (H04B0001680000 takes precedence);; 1
H04B0001680000 for wholly or partially suppressing the carrier or one side band 1
H04B0001690000 Spread spectrum techniques 1
H04B0001692000 Hybrid techniques using combinations of two or more spread spectrum techniques 1
H04B0001707000 using direct sequence modulation 1
H04B0001707300 Synchronisation aspects 1
H04B0001707500 with code phase acquisition 1
H04B0001707700 Multi-step acquisition, e.g. multi-dwell, coarse-fine or validation 1
H04B0001708000 Parallel implementation 1
H04B0001708300 Cell search, e.g. using a three-step approach 1
H04B0001708500 using a code tracking loop, e.g. a delay-locked loop 1
H04B0001708700 Carrier synchronisation aspects 1
H04B0001709000 Correlator structure 1
H04B0001709300 Matched filter type 1