Method and system for improving dynamic range for communication systems using upstream analog information
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United States of America Patent
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Aug 14, 2007
Grant Date -
Sep 29, 2005
app pub date -
Mar 26, 2004
filing date -
Mar 8, 2004
priority date (Note) -
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status (Latency Note)
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Abstract
The receiver is provided which comprises a mixer, a low pass filter coupled to the mixer and a plurality of gain controllers serially coupled to an output of the low pass filter (LPF). A plurality of analog-to-digital converters (ADCs) is coupled so that an input of a first of the ADCs is coupled to the output of the LPF. An input of each of a remaining portion of the ADCs is individually coupled to a corresponding output of each of the serially coupled gain blocks. An output path traced from the output of the LPF to an output of each of the analog-to-digital converters may be referred to as a processing path. Each processing path may comprise a gain controller and an ADC, except for the first processing path, which may have an ADC coupled directly to the output of the LPF.
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