ข้อมูลสัญลักษณ์จำแนกการออกแบบผลิตภัณฑ์ระหว่างประเทศ


รหัส / code คำอธิบาย / code name Version
G01R0023060000 by converting frequency into an amplitude of current or voltage 1
G01R0023070000 using response of circuits tuned on resonance, e.g. grid-drip meter 1
G01R0023080000 using response of circuits tuned off resonance 1
G01R0023090000 using analogue integrators, e.g. capacitors establishing a mean value by balance of input signals and defined discharge signals or leakage 1
G01R0023100000 by converting frequency into a train of pulses, which are then counted 1
G01R0023120000 by converting frequency into phase shift 1
G01R0023140000 by heterodyning; by beat-frequency comparison 1
G01R0023150000 Indicating that frequency of pulses is either above or below a predetermined value or within or outside a predetermined range of values, by making use of non-linear or digital elements 1
G01R0023160000 Spectrum analysis; Fourier analysis 1
G01R0023163000 adapted for measuring in circuits having distributed constants 1
G01R0023165000 using filters 1
G01R0023167000 with digital filters 1
G01R0023170000 with optical auxiliary devices 1
G01R0023173000 Wobbulating devices similar to swept panoramic receivers 1
G01R0023175000 by delay means, e.g. tapped delay lines 1