Transmitter and receiver synchronization for wireless telemetry systems
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United States of America Patent
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Mar 31, 2015
Grant Date -
Aug 25, 2011
app pub date -
Aug 21, 2009
filing date -
Aug 22, 2008
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A method and system are presented for transmitting data along tubing in a borehole, comprising generating an acoustic signal using a transmitter at a first location on the tubing, and receiving the acoustic signal at a receiver at a second location on the tubing. The method and system further comprise: (i) generating the acoustic signal at the transmitter at a first frequency and bit rate; (ii) receiving the acoustic signal at the first frequency at the receiver and attempting to synchronize the receiver at the first frequency, and (iiia) if the synchronization is successful, continuing to transmit the acoustic signal so as to pass the data from the transmitter to the receiver; or (iiib) if the synchronization is unsuccessful, adjusting the frequency and/or bit rate of the signal and repeating steps (i)-(iii) on the basis of the adjusted signal.
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