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
Fibres and nonwoven prepared from polypropylene having a large dispersity index
Fragrance emitting device for use with a smart phone
Processing method for cleaning sulfur entities of contact regions
Methods and systems for intra prediction
Julolidine conjugates and methods for their preparation and use
Branched polyamides comprising unsaturated ends
System and method for measuring irregular objects with a single camera
  Randomly Featured Patents
Prefabricated roof structure and support for bay and bow type windows
Process for etching a metal layer suitable for use in photomask fabrication
Helical fiber amplifier
Gas barrier structures
Single transistor non-volatile electrically alterable semiconductor memory device with a re-crystallized floating gate
Formal methods for modeling and analysis of hybrid systems
Shampoo and hair conditioner hanger
Process for the preparation of alpha-alkyl lactones
Endpoint detector and method for measuring a change in wafer thickness in chemical-mechanical polishing of semiconductor wafers