H03C3/22 - CPC Classification Index

ClassID:

218891 ⎘

H03C3/22 - CPC Classification

Classification description:

Angle modulation by means of variable impedance by means of a variable reactive element the element being a semiconductor diode, e.g. varicap diode

Sub-classes:

H03C3/222 » {using bipolar transistors } 3
H03C3/225 » {using field effect transistors } 12
H03C3/227 » {using a combination of bipolar transistors and field effect transistors} 2

Recent Application in this class:

20140009237

Frequency modulator and magnetic resonance tomography system with a frequency modulator

20090115546

MODULATOR COMPRISING A DUAL-FREQUENCY OSCILLATOR AND A SYNTHESIZER