Communications: directive radio wave systems and devices (e.g. – Directive – Including a satellite
Reexamination Certificate
2009-02-20
2011-10-25
Phan, Dao (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Directive
Including a satellite
C342S357410
Reexamination Certificate
active
08044849
ABSTRACT:
A method of communicating corrections for information related to satellite signals among global navigation satellite system (GNSS) receivers is described. An ionosphere correction for ionosphere signal path delay is determined for a first satellite. This ionosphere correction is then compared to an ionosphere correction for ionosphere signal path delay for a satellite assumed to be directly over the receiver. The receiver then sends a message which includes only the difference between the ionosphere correction for the actual observation and the ionosphere correction for a satellite assumed to be at the zenith.
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Albright Michael
Allison Michael Timo
Ferguson Kendall
Remondi Benjamin W.
Kilpatrick Townsend & Stockton LLP
Phan Dao
Trimble Navigation Limited
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