Communications: directive radio wave systems and devices (e.g. – Directive – Including a satellite
Reexamination Certificate
2005-01-04
2005-01-04
Phan, Dao (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Directive
Including a satellite
C342S357490
Reexamination Certificate
active
06839021
ABSTRACT:
A method and apparatus for determining a reference time associated with a satellite positioning system. In turn, the reference time, in one embodiment, may be used to determine other navigational information. Such navigational information may include, for example, the location/position of a satellite positioning system (SPS) receiver. In one embodiment, a relative velocity between an SPS receiver and a set of one or more satellites is used to determine an offset between time as indicated by the SPS receiver and the reference time. According to another embodiment of the invention, an error statistic is used to determine the reference time. According to yet another embodiment of the invention, two records, each representing at least a portion of a satellite message, are compared to determine time. In one implementation, the SPS receiver is mobile and operates in conjunction with a basestation to determine time and/or other navigational information according to one or a combination of the methods described.
REFERENCES:
patent: 4445118 (1984-04-01), Taylor et al.
patent: 4449830 (1984-05-01), Bulgier
patent: 4578678 (1986-03-01), Hurd
patent: 4734701 (1988-03-01), Grobert
patent: 5117232 (1992-05-01), Cantwell
patent: 5225842 (1993-07-01), Brown et al.
patent: 5317322 (1994-05-01), Grobert
patent: 5317323 (1994-05-01), Kennedy et al.
patent: 5319374 (1994-06-01), Desai et al.
patent: 5347285 (1994-09-01), MacDoran et al.
patent: 5379224 (1995-01-01), Brown et al.
patent: 5412388 (1995-05-01), Attwood
patent: 5420592 (1995-05-01), Johnson
patent: 5444450 (1995-08-01), Olds et al.
patent: 5451964 (1995-09-01), Babu
patent: 5461390 (1995-10-01), Hoshen
patent: 5510797 (1996-04-01), Abraham et al.
patent: 5515062 (1996-05-01), Maine et al.
patent: 5521887 (1996-05-01), Loomis
patent: 5570097 (1996-10-01), Aguado
patent: 5623414 (1997-04-01), Misra
patent: 5625556 (1997-04-01), Janky et al.
patent: 5629708 (1997-05-01), Rodal et al.
patent: 5640442 (1997-06-01), Fitzgerald et al.
patent: 5663734 (1997-09-01), Krasner
patent: 5680140 (1997-10-01), Loomis
patent: 5731786 (1998-03-01), Abraham et al.
patent: 5831576 (1998-11-01), Sheynblat
patent: 5841026 (1998-11-01), Kirk et al.
patent: 5917434 (1999-06-01), Murphy
patent: 5917444 (1999-06-01), Loomis et al.
patent: 6018312 (2000-01-01), Haworth
patent: 6107959 (2000-08-01), Levanon
patent: 6208861 (2001-03-01), Suzuki
patent: 6215442 (2001-04-01), Sheynblat et al.
patent: 0444738 (1991-09-01), None
patent: 0508405 (1992-10-01), None
patent: 0545636 (1993-06-01), None
patent: 0679901 (1995-11-01), None
patent: 2301725 (1996-12-01), None
patent: WO 9504941 (1995-02-01), None
patent: WO 9931524 (1999-06-01), None
PCT Invitation to Pay Additional Fees for Int'l Appln No. PCT/US99/07974 mailed Sep. 23, 1999.
PCT International Search Report for Int'l appln No. PCT/US98/01476, mailed Jul. 8, 1998.
F. H. Raab, G.W. Board, et al. “An Application of the Global Positioning System to Search and Rescue and Remote Tracking,”Navigation Journal of the Institute of Navigation, 24:3, Fall 1997.
“Navster GPS User Equipment Introduction,” Public Release Version (Feb. 1991), pp. 12-10 to 12-21.
Sturza, Mark A. “GPS Navigation Using Three Satellites and a Precise Clock,” Mar. 1993, pp. 122-132.
Copps, Edward M. “An Aspect of the Role of the Clock in a GPS Receiver,” Jan. 1984, pp. 44-53.
Search Report for PCT/US 99/07974 mailed Apr. 14, 2000, 7 pages.
Krasner Norman F.
Sheynblat Leonid
Brown Charles
Kordich Ronald
Phan Dao
Qualcomm Incorporated
Wadsworth Philip
LandOfFree
Method and apparatus for determining time in a satellite... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for determining time in a satellite..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for determining time in a satellite... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3410729