ข้อมูลสัญลักษณ์จำแนกการออกแบบผลิตภัณฑ์ระหว่างประเทศ


รหัส / code คำอธิบาย / code name Version
H04B0001715600 Arrangements for sequence synchronisation 1
H04B0001716300 using impulse radio 1
H04B0001717000 Pulse-related aspects 1
H04B0001717600 Data mapping, e.g. modulation 1
H04B0001718300 Synchronisation 1
H04B0001719000 Interference-related aspects 1
H04B0001720000 Circuits or components for simulating aerials, e.g. dummy aerials 1
H04B0001740000 for increasing reliability, e.g. using redundant or spare channels or apparatus 1
H04B0001760000 Pilot transmitters or receivers for control of transmission or for equalising 1
H04B0003000000 Line transmission systems (combined with near-field transmission systems H04B0005000000) 1
H04B0003020000 Details 1
H04B0003030000 Hybrid circuits (for transceivers H04B0001520000, H04B0001580000) 1
H04B0003040000 Control of transmission; Equalising 1
H04B0003060000 by the transmitted signal 1
H04B0003080000 in negative-feedback path of line amplifier 1