Reflected wave clock synchronization

Details Reflected wave clock synchronization Reflected wave clock synchronization

2011-01-25

2011-01-25

Tarcza, Thomas H (Department: 3662)

Communications: directive radio wave systems and devices (e.g.,

Return signal controls radar system

Transmitter

C342S082000, C342S165000, C342S173000, C342S174000, C455S265000

Reexamination Certificate

active

07876261

ABSTRACT:
A radar system has a phased-array antenna and plural local oscillators for controlling local transmit/receive units. The local oscillators are slaved to a master oscillator. The analog clock signal paths are subject to relative changes in electrical length. The electrical lengths of the signal paths are measured by phase-detecting forward- and reverse-direction clock signal flows. The phase-detected information for each signal path is a measure of the time delay. The radar command processor receives the measure of time delay and corrects the radar operation in response thereto.

REFERENCES:
patent: 3739287 (1973-06-01), Johnson
patent: 3798650 (1974-03-01), McComas et al.
patent: 3942124 (1976-03-01), Tarczy-Hornoch
patent: 4096448 (1978-06-01), Hayes
patent: 4198604 (1980-04-01), Holdaway
patent: 4641107 (1987-02-01), Kalokitis
patent: 4780685 (1988-10-01), Ferguson
patent: 4835480 (1989-05-01), Skupen et al.
patent: 4885590 (1989-12-01), Hasan
patent: 4965530 (1990-10-01), Katz
patent: 4968968 (1990-11-01), Taylor
patent: 5003314 (1991-03-01), Berkowitz et al.
patent: 5017927 (1991-05-01), Agrawal et al.
patent: 5103233 (1992-04-01), Gallagher et al.
patent: 5151702 (1992-09-01), Urkowitz
patent: 5157403 (1992-10-01), Urkowitz
patent: 5309161 (1994-05-01), Urkowitz et al.
patent: 5343208 (1994-08-01), Chesley
patent: 5361277 (1994-11-01), Grover
patent: 5376939 (1994-12-01), Urkowitz
patent: 5412414 (1995-05-01), Ast et al.
patent: 5414428 (1995-05-01), Gallagher et al.
patent: 5440311 (1995-08-01), Gallagher et al.
patent: 5481270 (1996-01-01), Urkowitz et al.
patent: 5682112 (1997-10-01), Fukushima
patent: 5907253 (1999-05-01), Davis et al.
patent: 5952955 (1999-09-01), Kennedy et al.
patent: 5982238 (1999-11-01), Soderquist
patent: 6081226 (2000-06-01), Caldwell et al.
patent: 6084540 (2000-07-01), Yu
patent: 6184820 (2001-02-01), Kratzer
patent: 6469671 (2002-10-01), Pluymers et al.
patent: 6483478 (2002-11-01), Yu
patent: 6639546 (2003-10-01), Ott et al.
patent: 6639950 (2003-10-01), Lagerblom et al.
patent: 6861974 (2005-03-01), Poe et al.
patent: 6995638 (2006-02-01), Smith et al.
patent: 7081848 (2006-07-01), Adams
patent: 7463710 (2008-12-01), Walsh et al.
patent: 7489168 (2009-02-01), Lee
patent: 7492850 (2009-02-01), Menolfi et al.
patent: 7570201 (2009-08-01), Watkins et al.
patent: 2002/0016154 (2002-02-01), Huttunen
patent: 2003/0199262 (2003-10-01), Chung
patent: 2007/0087704 (2007-04-01), Gilberton
patent: 2007/0131078 (2007-06-01), Kokkeler
patent: 2007/0210955 (2007-09-01), McEwan
patent: 2007/0260906 (2007-11-01), Corredoura
patent: 2009/0180466 (2009-07-01), Soul et al.
U.S. Appl. No. 11/590,402, Ehert et al.
Skolnik, Merrill “Attributes of the Ubiquitous Phased Array Radar”, IEEE Phased Array Systems and Technology Symposium, Oct. 14-17, 2003.

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