Communications: directive radio wave systems and devices (e.g. – Directive – Including a satellite
Reexamination Certificate
2006-05-16
2006-05-16
Issing, Gregory C. (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Directive
Including a satellite
Reexamination Certificate
active
07046194
ABSTRACT:
A method of despreading a plurality of GPS spread spectrum signals received by a GPS receiver (24) is disclosed together with a GPS receiver (24) and a mobile communications device (MS1) (especially a mobile cellular telephone) for the same. The method comprises the steps of acquiring a first GPS signal from the stored samples; obtaining frequency information relating to variations in the frequency of the first acquired signal as measured by the GPS receiver; and using the frequency information to acquire a second GPS signal. The frequency information may be used to acquire the second GPS signal in the course of a single dwell and may also, for a digital GPS receiver, relate to variations in the frequency of the first acquired signal present in stored samples.
REFERENCES:
patent: 5365450 (1994-11-01), Schuchman et al.
patent: 5402347 (1995-03-01), McBurney et al.
patent: 5418538 (1995-05-01), Lau
patent: 5420593 (1995-05-01), Niles
patent: 5663734 (1997-09-01), Krasner
patent: 5666122 (1997-09-01), Carter
patent: 5841396 (1998-11-01), Krasner
patent: 5874914 (1999-02-01), Krasner
patent: 5917444 (1999-06-01), Loomis et al.
patent: 6067503 (2000-05-01), Yakos
patent: 6114992 (2000-09-01), Underbrink
patent: 6151353 (2000-11-01), Harrison et al.
patent: 6178195 (2001-01-01), Durboraw et al.
patent: 6300899 (2001-10-01), King
patent: 0561540 (1993-09-01), None
“FFT Processing of Direct Sequence Spreading Codes using Modern DSP Microprocessors”, by Robert G. Davenport, pp. 98-105.
Dooley Saul R.
Yule Andrew T.
Issing Gregory C.
Koninklijke Philips Electronics , N.V.
Waxler Aaron
LandOfFree
Method of despreading GPS signals 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 of despreading GPS signals, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of despreading GPS signals will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3632017