Method and apparatus for a multi-mode multi-rate telemetry transmitter
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United States of America Patent
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Feb 2, 2010
Grant Date -
Sep 4, 2008
app pub date -
Sep 24, 2007
filing date -
Oct 20, 2006
priority date (Note) -
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Abstract
A method and apparatus for a multi-mode and multi-rate telemetry transmitter includes a digital baseband lineup, a digital-to-analog converter (“DAC”), and an analog reconstruction filter. The digital baseband lineup may be programmed to any desired bit rate, enabling the transmitter to support multi-rate capabilities. Different coefficients and numerical values may be programmed in the digital baseband lineup to support any desired modulation scheme, enabling the transmitter to support multi-mode capabilities. The digital baseband lineup may be designed by implementing up-sampling stages, down-sampling stages, and digital filters in a variety of arrangements.
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