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
Crosslinked core/shell polymer particles
Electrifying roller
Instance management of code in a database
Communications in an asynchronous cellular wireless network
Secure data exchange between data processing systems
Television apparatus
Humidity indicator and method for fabricating the same
  Randomly Featured Patents
Position and time-at-position logging system
Screen-printable dielectric composition
Fire-resistant cowls, particularly for aircraft engines
Method to provide autonomic boot recovery
Security gate with walk through feature
System and apparatus for recording and reproducing television video signals
Plasterless mounting dental articulator
Shoulder holster for remote control unit
Bicycle wheel assembly having dissimilar lateral spoke lacings
Presenting sponsored content on a mobile communication facility