H03F2203/45304 - CPC Classification Index

ClassID:

219957 ⎘

H03F2203/45304 - CPC Classification

Classification description:

Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by; Indexing scheme relating to differential amplifiers the common gate stage of a BIFET cascode dif amp being implemented fully by FETs

Recent Application in this class:

20130300506

Accurate bias tracking for process variation and supply modulation

20130113565

Linear differential amplifier with high input impedance

20120161876

Accurate bias tracking for process variation and supply modulation

20110124306

Current canceling variable gain amplifier and transmitter using same

20110095822

Variable-gain low noise amplifier

20100061481

Current canceling variable gain amplifier and transmitter using same

20080272849

Active baluns

20080136522

Amplifier with current mirror bias adjust

20050088203

Tail current generator circuit for bipolar/MOS differential pair to set precise transconductance