Communications: directive radio wave systems and devices (e.g. – Directive – Position indicating
Patent
1994-11-03
1999-09-28
Blum, Theodore M.
Communications: directive radio wave systems and devices (e.g.,
Directive
Position indicating
701207, G01S 302
Patent
active
059595809
ABSTRACT:
A method and apparatus for locating a mobile radio communications transceiver in a cellular-telephone or cell-like communications system uses a simplified system for passive monitoring of the signals emitted by the transceiver. A single base station can determine a line of bearing to the remote transceiver. This line of bearing is then combined with collateral, position-sensitive information to determine the likely location of the transceiver. The present invention has particular applicability to roadway transportation in that it facilitates enhanced emergency (9-1-1) services and roadside assistance in response to calls for assistance, and it permits the passive monitoring of traffic flow.
REFERENCES:
patent: 4728959 (1988-03-01), Maloney et al.
patent: 4742357 (1988-05-01), Rackley
patent: 5003317 (1991-03-01), Gray et al.
patent: 5045860 (1991-09-01), Hodson
patent: 5056106 (1991-10-01), Wang et al.
patent: 5119104 (1992-06-01), Heller
patent: 5163004 (1992-11-01), Rentz
patent: 5166694 (1992-11-01), Russell et al.
patent: 5218367 (1993-06-01), Sheffer et al.
patent: 5225809 (1993-07-01), Bunn
patent: 5264857 (1993-11-01), Baghdady
patent: 5293642 (1994-03-01), Lo
patent: 5299132 (1994-03-01), Wortham
patent: 5311195 (1994-05-01), Mathis et al.
patent: 5317323 (1994-05-01), Kennedy et al.
patent: 5319374 (1994-06-01), Desai et al.
patent: 5428546 (1995-06-01), Shah et al.
patent: 5465289 (1995-11-01), Kennedy, Jr.
Roy E. Bethel et al., "A PDF Tracker", IEEE Transactions on Aerospace and Eledtronic Systems, vol. 30, Apr. 1994, pp. 386-403.
Hinkle, Jr. Charles J.
Maloney John E.
Stevenson James O.
Blum Theodore M.
KSI Inc.
LandOfFree
Communications localization system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Communications localization system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Communications localization system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-708377