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
Gas cap removal tool
Data architecture and user interface for plasma processing related software applications
Digital photographing apparatus
Resonant oscillator with start up and shut down circuitry
Substituted indolo 4,3 FG quinolines useful for treating migraine
Chip on film (COF) package having test line for testing electrical function of chip and method for manufacturing same
Automated gate system
  Randomly Featured Patents
Process and apparatus for laser analysis of surface having a repetitive texture pattern
Structure of thin-film lithium microbatteries
Apparatus for obtaining blood samples from animals such as mice or rats
2D-3D switchable autostereoscopic display apparatus
Receiver for high bitrate binary signals
Waterproof signal splitter
Gauge for measuring depth of flowing fluid
Method for molding bicycle tube
Theft-deterrent outdoor lighting
Cosmetic delivery system