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
Transferring storage devices within storage device testing systems
Accessing a base station
Field emission cathode structure
Method and system for physical verification using network segment current
Metal-doped oxide, method of preparing the same, and solid oxide electrolyte using the metal-doped oxide
Accessory system for vehicle
MOS device for eliminating floating body effects and self-heating effects
  Randomly Featured Patents
Cutter for rotary cutting machine
Thin-film transistor fabrication process
Multi-layer piezoelectric transformer
Hybrid fuel cell
Hair straightening iron
Container and dispenser for aneurysm clips
Humidity sensor, and a measurement installation including a plurality of such sensors
Zoom lens
Multilayer ZnO polycrystallin diode
Making a nitrodiarylamine by reacting an alkali metal salt of a formamide with a nitrohaloarene