Resources Contact Us Home
Browse by Category: Main > Electrical & Energy
Class Information
Number: 330/81
Name: Amplifiers > Signal feedback > At least one push-pull signal stage
Description: Subject matter including at least one stage of push-pull signal amplification.

Sub-classes under this class:

Class Number Class Name Patents
330/83 Including d.c. path for signal feedback 3
330/82 Positive and negative feedback 6

Patents under this class:

Patent Number Title Of Patent Date Issued
8446228 Oscillator circuit May. 21, 2013
8022776 Origami cascaded topology for analog and mixed-signal applications Sep. 20, 2011
6069503 High value FET resistors on a submicron MOS technology May. 30, 2000
5604461 Transformerless output vacuum tube audio amplifier Feb. 18, 1997
4321552 Amplifier comprising a first and a second amplifier element Mar. 23, 1982
4112386 Modular radio frequency amplifier having a gain variable by external passive component selection Sep. 5, 1978
4066975 Audio amplifier with improved stability Jan. 3, 1978

  Recently Added Patents
Method for providing interactive site map
System and method for advertising messages on distributed document processing devices
Integrated control system for stability control of yaw, roll and lateral motion of a driving vehicle using an integrated sensing system to determine longitudinal velocity
Processing biomass
Differentiated PSIP table update interval technology
Rewarding independent influencers
Electronic system and method for compensating the dimensional accuracy of a 4-axis CNC machining system using global and local offsets
  Randomly Featured Patents
Coated, heat-sealable aromatic polyimide film having superior compressive strength
User assisted customization of automated video surveillance systems
Switch having a plunger, a support terminal, and a coil spring
Process for preparing low silica forms of zeolites having the faujasite type structure
Limited life virtual attribute values
Zone control method in roller conveyor and zone controller
Lithography system with illumination monitor
Method of displaying a status condition of a battery
Method and arrangement for control of the printing of a thermotransfer printing device
Wettable ePTFE medical devices