ข้อมูลสัญลักษณ์จำแนกการออกแบบผลิตภัณฑ์ระหว่างประเทศ


รหัส / code คำอธิบาย / code name Version
H03J0001120000 Friction drive 1
H03J0001140000 Special arrangements for fine and coarse tuning 1
H03J0001160000 Single control means independently performing two or more functions 1
H03J0001180000 Control by auxiliary power 1
H03J0001200000 the auxiliary power being switched on as long as controlling current is switched on 1
H03J0001220000 with stepping arrangements actuated by control pulses 1
H03J0003000000 Continuous tuning (H03J0007000000, H03J0009000000 take precedence;combination of continuous and discontinuous tuning other than for bandspreading H03J0005000000) 1
H03J0003020000 Details 1
H03J0003040000 Arrangements for compensating for variations of physical values, e.g. temperature (automatic control of ambient conditions G05D) 1
H03J0003060000 Arrangements for obtaining constant bandwidth or gain throughout tuning range or ranges (automatic gain control H03G) 1
H03J0003080000 by varying a second parameter simultaneously with the tuning, e.g. coupling bandpass filter 1
H03J0003100000 Circuit arrangements for fine tuning, e.g. bandspreading 1
H03J0003120000 Electrically-operated arrangements for indicating correct tuning 1
H03J0003140000 Visual indication, e.g. magic eye 1
H03J0003160000 Tuning without displacement of reactive element, e.g. by varying permeability 1