WO1994015412B1 - Hybrid gps/data and multi-service link unit - Google Patents

Hybrid gps/data and multi-service link unit

Info

Publication number
WO1994015412B1
WO1994015412B1 PCT/US1993/012179 US9312179W WO9415412B1 WO 1994015412 B1 WO1994015412 B1 WO 1994015412B1 US 9312179 W US9312179 W US 9312179W WO 9415412 B1 WO9415412 B1 WO 9415412B1
Authority
WO
WIPO (PCT)
Prior art keywords
gps receiver
mobile gps
assistance
mobile radio
data
Prior art date
Application number
PCT/US1993/012179
Other languages
French (fr)
Other versions
WO1994015412A1 (en
Filing date
Publication date
Priority claimed from US07/992,892 external-priority patent/US5365450A/en
Priority claimed from US08/115,087 external-priority patent/US5422813A/en
Application filed filed Critical
Priority to AU62267/94A priority Critical patent/AU6226794A/en
Priority to BR9307686-0A priority patent/BR9307686A/en
Publication of WO1994015412A1 publication Critical patent/WO1994015412A1/en
Publication of WO1994015412B1 publication Critical patent/WO1994015412B1/en

Links

Abstract

A global positioning system (GPS) (20) in which a plurality earth orbiting satellites transmit position information to mobile radio stations on earth, is provided with a separate source satellite position data broadcast digital channels and one or more dial-up service separate communication channels (selected from a data link supported by terrestrial cellular telephone (42) and other radio packet data services (54)) for assisting the mobile radio station to access position information from the satellites. A controller (22) is coupled to the mobile radio station (55) for connecting to the separate communication channel for extricating the satellite position data via separate communication channel. The controller (22) includes a microprocessor (30) for processing the satellite position data to enable the mobile radio station to rapidly locate and access position information from said earth orbiting satellite.

Claims

AMENDED CLAIMS
[received by the International Bureau on 29 July 1994 (29.07.94); original claims unchanged; new claim 19 added (1 page)]
17. The invention defined in claim 14 including means for storing the frequency and geographic positions of said plurality of AM transmitters and means for selecting therefrom said predetermined number. 18. The invention defined in any one of claims 1-17 including a user service center accessible via said cellular phone to provide user services selected from one or more of the following: emergency roadside assistance, personal emergency response, vehicle tracking assistance, traveler information assistance, traffic management assistance, and fleet management. 19. In a GPS system wherein a plurality of satellites transmit time and location data over radio frequency signals to enable a mobile GPS receiver station on the ground to determine its position, and a cellular telephone carried with said mobile GPS receiver, and a plurality of conventional ground based commercial radio transmitters for transmitting commercial broadcast signals, characterized by:
1) each mobile GPS receiver station including phase detection means for (1) simultaneously receiving a predetermined number of said commercial broadcast signals, and (2) measuring the changes in phase of each of said commercial broadcast signals as said mobile GPS receiver travels, and deriving therefrom a further position signal, and
2) means to detect GPS outage or black-out and providing said further position signal as an indication of position of said mobile GPS receiver station.
PCT/US1993/012179 1992-12-17 1993-12-17 Hybrid gps/data and multi-service link unit WO1994015412A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU62267/94A AU6226794A (en) 1992-12-17 1993-12-17 Hybrid gps/data and multi-service link unit
BR9307686-0A BR9307686A (en) 1992-12-17 1993-12-17 Hybrid / data and multiple service gps connection unit

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US07/992,892 1992-12-17
US07/992,892 US5365450A (en) 1992-12-17 1992-12-17 Hybrid GPS/data line unit for rapid, precise, and robust position determination
US7981093A 1993-06-22 1993-06-22
US08/079,810 1993-06-22
US08/115,087 1993-09-02
US08/115,087 US5422813A (en) 1992-12-17 1993-09-02 No-outage GPS/commercial RF positioning system

Publications (2)

Publication Number Publication Date
WO1994015412A1 WO1994015412A1 (en) 1994-07-07
WO1994015412B1 true WO1994015412B1 (en) 1994-09-01

Family

ID=27373559

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1993/012179 WO1994015412A1 (en) 1992-12-17 1993-12-17 Hybrid gps/data and multi-service link unit

Country Status (5)

Country Link
US (1) US5422813A (en)
AU (1) AU6226794A (en)
BR (1) BR9307686A (en)
CA (1) CA2152052A1 (en)
WO (1) WO1994015412A1 (en)

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