Method and apparatus for timebase synchronization for use...

Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C455S502000

Reexamination Certificate

active

07373175

ABSTRACT:
A server-assisted approach for synchronizing timebases (120and140) in a client-server system utilizes global positioning system (GPS) receivers (136and110) at both the client and server. In a typical implementation, the GPS receiver (136) associated with the client system receives fragmentary or incomplete data from satellites that are part of the GPS. Thus, the client GPS receiver (136) is capable of receiving only fragmentary information and cannot derive accurate time signals therefrom. The server system (102) is associated with a GPS receiver (110) capable of generating accurate time and position data based on signals from GPS satellites (114). The fragmentary information from the client GPS receiver (136) is transmitted to the server (126) along with time information indicating the time at which the client captured the fragmentary GPS data. The server (126) analyzes the fragmentary GPS data with respect to the complete GPS data available from the GPS receiver (110) associated with the server. The server (126) accurately determines the actual time at which the fragmentary GPS data was captured and transmits timing signals to the client (146). The timing signals are used to correct the client timebase (140) thus synchronizing the client and server timebases (140and120).

REFERENCES:
patent: 6070078 (2000-05-01), Camp et al.
patent: 6131067 (2000-10-01), Girerd
patent: 6480483 (2002-11-01), Yahata et al.
patent: 6621813 (2003-09-01), Petch et al.
patent: 6677894 (2004-01-01), Sheynblat et al.
patent: 2002/0037732 (2002-03-01), Gous et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method and apparatus for timebase synchronization for use... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for timebase synchronization for use..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for timebase synchronization for use... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2756130

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.