Chirp communications
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United States of America Patent
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Nov 17, 2015
Grant Date -
Sep 3, 2015
app pub date -
May 15, 2015
filing date -
Aug 31, 2011
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Abstract
A method of communicating a data chirp signal from a transmitter to a receiver, the data chirp signal comprising a sequence of symbols, each symbol encoding a first symbol value and a second symbol value such that the data chirp signal comprises a first symbol value sequence and a second symbol value sequence, the first and second symbol values being encoded via different properties of the symbol, the first symbol value sequence being selected from values in a primary predetermined sequence and a secondary predetermined sequence, the method comprising: selecting consecutive values of the first symbol value sequence from values in consecutive sequence positions of the primary predetermined sequence and the secondary predetermined sequence; encoding first data in the chirp signal via the selected first symbol value sequence; encoding second data in the chirp signal via the second symbol value sequence; and transmitting the data chirp signal to the receiver.
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