Communications: directive radio wave systems and devices (e.g. – Determining distance – With remote cooperating station
Reexamination Certificate
2007-07-25
2010-02-16
Gregory, Bernarr E (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Determining distance
With remote cooperating station
C342S118000, C342S127000, C342S175000, C342S195000, C342S450000, C342S451000, C342S463000
Reexamination Certificate
active
07663535
ABSTRACT:
A system is disclosed for position registration and phase synchronization of monitors in a monitor network. Each monitor includes a transceiver having a transponder circuit with a calibrated transponder delay. To measure a distance between monitors, an oscillator at a first monitor generates a measurement signal which is transponded by a second monitor for receipt by the first monitor. A phase difference between the received signal and the first monitor oscillator is determined and used with the signal velocity and transponder delay to calculate the distance between monitors. The measured distances are combined with other data (e.g. monitor elevations) to calculate monitor locations. A phase delay is then measured by transmitting a signal from the first to the second monitor for comparison with the second monitor oscillator. A phase difference between oscillators (for use in synchronizing the monitors) is then calculated using the phase delay, separation distance and signal velocity.
REFERENCES:
patent: 2416741 (1947-03-01), Eltgroth
patent: 2531412 (1950-11-01), Deloraine
patent: 2736892 (1956-02-01), Moran, Jr.
patent: 2891246 (1959-06-01), Reed, Jr.
patent: 3213449 (1965-10-01), Kyoji et al.
patent: 3396393 (1968-08-01), Wagner
patent: 3680121 (1972-07-01), Anderson et al.
patent: 3706096 (1972-12-01), Hammack
patent: 3714650 (1973-01-01), Fuller et al.
patent: 3725920 (1973-04-01), Kupfer et al.
patent: 3870993 (1975-03-01), Biagi et al.
patent: 3953856 (1976-04-01), Hammack
patent: 3996590 (1976-12-01), Hammack
patent: 4021807 (1977-05-01), Culpepper et al.
patent: 4297700 (1981-10-01), Nard et al.
patent: 4728959 (1988-03-01), Maloney et al.
patent: 4804961 (1989-02-01), Hane
patent: 5298904 (1994-03-01), Olich
patent: 5365516 (1994-11-01), Jandrell
patent: 5534876 (1996-07-01), Erickson et al.
patent: 5706010 (1998-01-01), Franke
patent: 5790076 (1998-08-01), Sypniewski
patent: 5977913 (1999-11-01), Christ
patent: 5999131 (1999-12-01), Sullivan
patent: 6166691 (2000-12-01), Lindqvist
patent: 6784827 (2004-08-01), Hirt
patent: 6963301 (2005-11-01), Schantz et al.
patent: 7079025 (2006-07-01), Michalson et al.
patent: 7298314 (2007-11-01), Schantz et al.
patent: 2002/0008625 (2002-01-01), Adams et al.
patent: 2003/0174086 (2003-09-01), Hirt
patent: 2004/0032363 (2004-02-01), Schantz et al.
patent: 2005/0046608 (2005-03-01), Schantz et al.
Gregory Bernarr E
Information Systems Laboratories, Inc.
Nydegger & Associates
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