Receivers for mobile telephone systems
AssigneeOrbitel Mobile Communications Limited
InventorsAndrew W. Baldwin, Robert N. Carter
Life of this patent
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Abstract
A receiver for a mobile telephone system, the receiver having a gain control coupled to receive an input burst signal and being switchable in response to the value of a gain control signal between a plurality of gain values. A detector for detecting the amplitude of said input burst signal, an averager for storing the value of the detected amplitude and a timer operative in response to the detection of said input signal for timing a sequence of measurements of the amplitude of the input burst signal, said averager being operative to compute an average value of the amplitude and to provide a corresponding gain control signal for a subsequent time period.
Claims15
A receiver for a mobile telephone system, the receiver having a gain control means having a plurality of predetermined gain values, the gain control means being coupled to receive an input burst signal and being switchable in response to the value of a gain control signal between a plurality of gain values, detector means for detecting the amplitude of said input burst signal, averaging means responsive to said detector means for storing the value of the detected amplitude, and timing means responsive to said detector means and operative in response to the detection of said input burst signal by said detector means for timing a sequence of measurements of the amplitude of the input burst signal, said averaging means being operative to compute an average value of the amplitude and to provide a corresponding updated gain control signal for a subsequent time period.
A receiver according to claim 9 wherein the converter comprises a look-up table.
Dependencies are inferred from the claim text.