Position determination based on phase difference

Details Position determination based on phase difference Position determination based on phase difference

2006-05-16

2006-05-16

Ledynh, Bot (Department: 2862)

Electricity: measuring and testing

Magnetic

Displacement

C324S207150, C324S207110, C340S870030, C340S010100

Reexamination Certificate

active

07045996

ABSTRACT:
A method for determining position of a device includes generating at least two, time-varying, magnetic fields using inductive elements, wherein the fields have differing phases. The method further includes detecting a signal modulated on top of the fields, wherein the signal is generated from the device, and determining a position of the device based on a phase difference of the signal from the device and a reference signal.

REFERENCES:
patent: 4679046 (1987-07-01), Curtis et al.
patent: 5594448 (1997-01-01), d'Hont
patent: 5793202 (1998-08-01), Ikemoto
patent: 5963134 (1999-10-01), Bowers et al.
patent: 6043644 (2000-03-01), de Coulon et al.
patent: 6046683 (2000-04-01), Pidwerbetsky et al.
patent: 6600443 (2003-07-01), Landt
patent: 6661335 (2003-12-01), Seal
patent: 6717516 (2004-04-01), Bridgelall
patent: 2001/0001430 (2001-05-01), Ely et al.
patent: 2003/0030568 (2003-02-01), Lastinger et al.
patent: 2003/0046339 (2003-03-01), Ip

Affiliated with

Also associated with

Rating

Position determination based on phase difference does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Position determination based on phase difference, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Position determination based on phase difference will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3571929