Method and apparatus for transmitting process data in an automatically controlled installation
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United States of America Patent
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Feb 14, 2017
Grant Date -
Jan 22, 2015
app pub date -
Oct 9, 2014
filing date -
Apr 13, 2012
priority date (Note) -
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Abstract
A process data transmitter transmits process data at defined recurring time intervals as a serial transmit data stream including data symbols at a defined symbol rate. A process data receiver samples the serial transmit data stream at a sampling rate which is higher than the symbol rate by a defined factor to thereby generate a serial receiver data stream having a plurality of sampling values per data symbol. The process data receiver subdivides the serial receiver data stream into data packets, each of which has a defined first number of sampling values. The process data receiver selects a defined second number of sampling values from the respective data packets. The second number is smaller than the first number by the defined factor and the sampling values selected from each data packet are equidistant from one another. The process data receiver processes the selected sampling values as received process data.
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