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
TPO compositions, articles, and methods of making the same
Distylium plant named `PIIDIST-I`
Interest point detection
Bipolar transistor with diffused layer between deep trench sidewall and collector diffused layer
Antenna module and wireless communication apparatus
Vehicle and method for controlling vehicle
Image capture apparatus and program
  Randomly Featured Patents
Garment absorbent structure
15-hydroxyeicosatetraenoic acid analogs with enhanced metabolic stability and methods of their use in treating dry eye disorders
Assembly and method to improve tarpaulin function as a protective cover
Lockset keyway cover-up mechanism
Refractive index distribution measurement method and apparatus that measure transmission wavefronts of a test object immersed in different media having refractive index lower than that of the
Lamp having a rotatable base
Double loop curtain rod set
Semiconductor storage device
Document counter and endorser with light source control
Lavatory system