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Automatic gain control circuit with non-negative exponential release

  • US 4,333,056 A
  • Filed: 04/07/1980
  • Issued: 06/01/1982
  • Est. Priority Date: 04/07/1980
  • Status: Expired due to Term
First Claim
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1. An automatic gain control (AGC) circuit for providing gain-controlled signal at an output related to signals received at an input, comprising:

  • gain-controllable amplifier means having an output coupled to the AGC output;

    means couplng the AGC input to an input of said amplifier means; and

    gain control means responsively coupled to receive signals from within the AGC circuit for automatically determining whether the gain should be increased or decreased, and for controlling said amplifier means with control signals which progressively increase in increasingly larger magnitudes, at least initially, if the gain should be increased, and which decrease if the gain should be decreased.

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