Distance/ranging determination using relative phase data

Details Distance/ranging determination using relative phase data Distance/ranging determination using relative phase data

2005-03-14

2009-08-25

Duong, Frank (Department: 2416)

Multiplex communications

Duplex

Communication over free space

C370S282000, C370S313000

Reexamination Certificate

active

07580378

ABSTRACT:
A method and system for locating an RF transponder based on phase differences between signals received from the RF transponder. The method includes receiving a signal from the transponder and calculating distance, relative movement, and position by comparing I-Q phase angle vectors of the signals. Global scroll commands can be used following receipt of signals at first and second frequencies to quickly determine distance.

REFERENCES:
patent: 3098971 (1963-07-01), Richardson
patent: 3299424 (1967-01-01), Vinding
patent: 4075632 (1978-02-01), Baldwin et al.
patent: 4087816 (1978-05-01), Barszczewski et al.
patent: 4283726 (1981-08-01), Spence et al.
patent: 4360810 (1982-11-01), Landt
patent: 4728955 (1988-03-01), Hane
patent: 4851851 (1989-07-01), Hane
patent: 5298904 (1994-03-01), Olich
patent: 5510795 (1996-04-01), Koelle
patent: 5528232 (1996-06-01), Verma et al.
patent: 5790022 (1998-08-01), Delvecchio et al.
patent: 6084512 (2000-07-01), Elberty et al.
patent: 6501807 (2002-12-01), Chieu et al.
patent: 2003/0058155 (2003-03-01), Landt
patent: 2004/0196177 (2004-10-01), Billington et al.
patent: 0 851 239 (1998-07-01), None
patent: WO 01/94974 (2001-12-01), None
patent: WO 01/95240 (2001-12-01), None
Notification of Transmittal of the International Search Report and The Written Opinion of the International Searching Authority or the Declaration, PCT international Search Report, PCT Application No. PCT US2006/008611. Jul. 17, 2006 Mailed Nov. 11, 2005 (15 pages).
Notification Concerning Transmittal of International Preliminary Report on the Patentability (Chapter 1 of the Patent Cooperation Treaty) and Written Opinion of the International Searching Authority for PCT Application No. PCT US2006/008611, filed on Mar. 10, 2006, mailed Sep. 27, 2007, (11 pages).
PCT Written Opinion of the International Searching Authority UPCT/US2006/008611 mailed Apr. 14, 2008 (total 9 pages).

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