Resources Contact Us Home
Browse by Category: Main > Electrical & Energy
Class Information
Number: 330/177
Name: Amplifiers > Interstage coupling > With coupling or blocking capacitor
Description: Subject matter wherein any path traced in series from the output electrode of the preceding of the two cascaded amplifying devices to the input electrode of the amplifier device of the following stage contains at least one capacitor.

Sub-classes under this class:

Class Number Class Name Patents
330/179 L in anode or grid circuit 1
330/180 With r in anode and grid circuit (rc coupling) 2
330/178 With r or l in series between stages 1

Patents under this class:

Patent Number Title Of Patent Date Issued
8284962 Electronic bass instrument tube preamplifier Oct. 9, 2012
7714371 Shielded capacitor structure May. 11, 2010
6952159 Coupling device Oct. 4, 2005
4902985 Microwave reflectiion amplifiers having increased bandwidth Feb. 20, 1990

  Recently Added Patents
Apparatus and method for transferring a data signal propagated along a bidirectional communication path within a data processing apparatus
Extract of Vanilla planifolia
Methods of forming integrated circuit packages
Regulating a supply voltage provided to a load circuit
Methods of producing the membranes and the uses of membranes as battery separator films
Motorized home appliance door
Snap-engagement structure
  Randomly Featured Patents
Gain normalization technique for controlled current induction motor system
Writing instrument having light device
Body toning belt
Safety razors
Use of licochalcone A against rosacea
Drain catheters
Coffee percolator
Detection of bacteria
Platform independent replication
Structural illumination and evanescent coupling for the extension of imaging interfermetric microscopy