Method for the transmission of additional data along with navigation messages in a satellite navigation system
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United States of America Patent
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Oct 23, 2012
Grant Date -
Oct 21, 2010
app pub date -
Dec 15, 2008
filing date -
Dec 14, 2007
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method for transmitting additional information in a satellite navigation system includes providing a navigation message including a continuous data stream having a prescribed bit rate and structuring the navigation message in a plurality of pages generated according to a prescribed page definition so as to transmit information, wherein each of the plurality of pages includes a checksum calculated as a function of information contained in the page. The method further includes generating at least one new page containing the additional information so as to form a changed, navigation message according to a further page definition that differs from the prescribed page definition such that the checksum calculated as a function of information contained on the page generated according to the prescribed page definition is false; and transmitting the at least one new page.
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