IPC Subgroup
H03B 7/14 active element being semiconductor device
Introduced: September 1968
Last revised: January 2006
Full Title
Generation of oscillations using active element having a negative resistance between two of its electrodes > with frequency-determining element comprising distributed inductance and capacitance > active element being semiconductor device
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRONIC CIRCUITRY
- Subclass:
- GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS