US PATENT SUBCLASS 330 / 133
.~.~ Different bias control means for different stages of cascade amplifier


Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use



330 /   HD   AMPLIFIERS

127  DF  WITH CONTROL OF POWER SUPPLY OR BIAS VOLTAGE {2}
129  DF  .~ With control of input electrode or gain control electrode bias {13}
133.~.~ Different bias control means for different stages of cascade amplifier


DEFINITION

Classification: 330/133

(under subclass 129) Subject matter including at least two stages of amplification (each stage as defined in the class definition with at least two such stages as defined in subclass 129) such that the input signal of each stage except the first is the output signal of the preceding stage and

wherein the bias control for each of at least two of the stages as defined in subclass 129 has some characteristic or characteristics distinctive from the other.