Communications: directive radio wave systems and devices (e.g. – Directive – Position indicating
Patent
1994-03-01
1996-04-23
Tarcza, Thomas H.
Communications: directive radio wave systems and devices (e.g.,
Directive
Position indicating
342463, 342357, G01S 302
Patent
active
055108016
ABSTRACT:
A location determination system and method in which mobile receiver units are in an area of at least three fixed commercial television stations, each television station broadcasting standard television signals, including horizontal, vertical and chrominance burst synchronizing signals. The standard television signals from selected ones of said television station are received at the mobile receiver unit and the times of arrival synchronizing signals of the selected ones of the television stations, respectively, are measured to produce mobile receiver unit signals corresponding thereto. A fixed reference station receives the television signals and detects any frequency and wavelength drift in the standard television signals from each of the fixed commercial television stations, respectively, and produces reference receiver correction signals. A processor, which may be at the reference station or at the mobile receiver units, computes the location of the mobile receiver units from the mobile receiver unit signals and the reference receiver correction signals.
REFERENCES:
patent: 3303502 (1967-02-01), Mahoney
patent: 3518674 (1970-06-01), Moorehead et al.
patent: 3747106 (1973-07-01), Dalabakis et al.
patent: 3774211 (1973-11-01), Nard et al.
patent: 3774215 (1973-11-01), Reed
patent: 3889264 (1975-06-01), Fletcher
patent: 3899740 (1975-08-01), Unkauf et al.
patent: 4543580 (1985-09-01), Bent et al.
patent: 4555707 (1985-11-01), Connelly
patent: 4651156 (1987-03-01), Martinez
patent: 5045861 (1991-09-01), Duffett-Smith
patent: 5173710 (1992-12-01), Kelley et al.
patent: 5276451 (1994-01-01), Odagawa
Engelbrecht Lloyd
Weinberg Aaron
Pham Dao L.
Stanford Telecommunications, Inc.
Tarcza Thomas H.
Zegeer Jim
LandOfFree
Location determination system and method using television broadc does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Location determination system and method using television broadc, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Location determination system and method using television broadc will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2312226