HANDLING EPHEMERIS EXTENSION DATA
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Jun 4, 2015
app pub date -
Dec 22, 2011
filing date -
Dec 22, 2011
priority date (Note) -
Published
status (Latency Note)
Importance
Abstract
Apparatus comprises: one or more memories configured to store data sets for each of plural positioning satellites, the data set for a satellite comprising ephemeris extension data and data relating to a lifetime or expiry of the ephemeris extension data, wherein the data relating to a lifetime or expiry of the ephemeris extension data is different for at least two satellites; and one or more processors. The processors are configured to execute computer code in the one or more memories such as to perform a method comprising: identifying one or more satellites for which ephemeris extension data is no longer valid; identifying one or more satellites for which ephemeris extension data is valid; determining whether to calculate a location based on the one or more satellites for which the stored ephemeris extension data is valid and, in response to a negative determination; sending a request for new ephemeris extension data; receiving new ephemeris extension data; storing the new ephemeris extension data; and using the new ephemeris extension data in calculating a location of the apparatus.
First Claim
Other Claims data not available
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
- 4 Citation Count
- G01S Class
- 5.15 % this patent is cited more than
- 10 Age