Positioning system, IC chip for positioning, positioning...

Communications: directive radio wave systems and devices (e.g. – Directive – Including a satellite

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Reexamination Certificate

active

07986264

ABSTRACT:
A positioning system accurately estimates transmission times of signals from a signal transmitter and measures a position of a receiver on the basis of the transmission times. The receiver10comprises a velocity-vector calculating unit12calculating velocity vectors of GPS satellites20on the basis of signals from the GPS satellite; a satellite selecting unit13generating a combination of velocity vectors from the calculated velocity vectors and selecting a combination of GPS satellites from the GPS satellites on the basis of the combination of velocity vectors; a position calculating unit15calculating positions of the receiver10at a plurality of times, the times being signal transmission times, on the basis of signals from the selected GPS satellites; and a position-accuracy evaluating unit17evaluating the accuracy of the calculated positions of the receiver10, setting one time selected from the plurality of times corresponding to the plurality of positions as a transmission time, and setting the position of the receiver10corresponding to the transmission time as an estimated position.

REFERENCES:
patent: 7136015 (2006-11-01), Wakamatsu
patent: 2003/0162552 (2003-08-01), Lehtinen
patent: 2006/0290565 (2006-12-01), Terashi et al.
Takeyasu Sakai, “Introducing of GPS Technology”, Tokyo Denki University Press, Feb. 28, 2003, 2 cover pages and pp. 36-41, (with English translation).
Bradford W. Parkinson, et al., “Global Positioning System: Theory and Applications”, American Institute of Aeronautics and Astrinautics, Inc., vol. 164, 1996, 1 cover page and pp. 142-165.
Chinese Office Action issued Feb. 28, 2011, in Chinese Patent Application No. 200810130322.2 with English translation.

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

Positioning system, IC chip for positioning, positioning... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Positioning system, IC chip for positioning, positioning..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Positioning system, IC chip for positioning, positioning... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2716124

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