Resources Contact Us Home
Automatic gain controlled amplifier apparatus

Image Number 5 for United States Patent #4016557.

In an analog data acquisition system, used for digital treatment, analog signals of different levels received from remote locations are amplified with a selected gain before being converted by a common A/D converter. A discretely variable gain amplifier is used in which a series of programmed predetermined ranges are sequentially tested against the capability of the A/D converter in relation to the particular input analog signal. The first acceptable gain is selected and a code can be used to identify the selected gain for digital treatment of the derived corresponding digital signal.

  Recently Added Patents
Lid for a container
Inflatable workshop
Information processing apparatus and method
Image processing apparatus, image processing method, and program
Blue box
Point-in-time copies in a cascade using maps and fdisks
Isolated nucleic acid molecule encoding an antibody that reduces GDF-8 activity
  Randomly Featured Patents
Combustion synthesis method and boron-containing materials produced therefrom
Universal apparatus and method for configurably controlling a heating or cooling system
Vane platform rail configuration for reduced airfoil stress
Fault detection and diagnosis
Method and apparatus for improving safety during exposure to a monochromatic light source
Flat-panel TV
Raspberry plant named `Advabereen`
Aqueous ruthenium chloride solution for blackening ceramic surfaces
Rotatable screw conveyor for discharging chip silos
Input panel and switch device for the operation of an electrical appliance