active element in amplifier being semiconductor device (H03B5/14 takes precedence)

Introduced: September 1968

Title

Titles differ between systems:

IPC: active element in amplifier being semiconductor device

CPC: active element in amplifier being semiconductor device (H03B5/14 takes precedence)

Full Title

Full titles differ between systems:

IPC:

Generation of oscillations using amplifier with regenerative feedback from output to input > with frequency-determining element comprising lumped inductance and capacitance > active element in amplifier being semiconductor device

CPC:

Generation of oscillations using amplifier with regenerative feedback from output to input (H03B9/00, H03B15/00 take precedence) > with frequency-determining element comprising lumped inductance and capacitance > active element in amplifier being semiconductor device (H03B5/14 takes precedence)

Of 7 combined children, 0 exist in both systems.

7 codes are CPC-only extensions.

Child Classifications

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H03B 5/1203 CPC only CPC only
H03B 5/1206 +5 CPC CPC only CPC only
H03B 5/1228 CPC only CPC only
H03B 5/1231 CPC only CPC only
H03B 5/1234 CPC only CPC only
H03B 5/1237 +6 CPC CPC only CPC only
H03B 5/1296 CPC only CPC only