EP0974137B1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Interactive process for use as a navigational aid and device for its implementation
Assignee: Webraska Mobile Technologies
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Filing: 1998-03-20
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Granted: 2001-11-28
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Expires: 2018-03-20
Abstract
Abstract The invention relates to a system to be used as an aid in navigation comprising a mobile terminal (1, 2) connected to a centralized server (5), and more specifically to the improvements required to convert a portable radiotelephone (1) into a complete and precise navigational aid system. The invention is characterized by the fact that the itinerary requests of the mobile terminal (1, 2) are transmitted to a centralized server (5) by a radio relay link, and by the fact that the server (5), which contains the necessary cartographic and program data, calculates the itinerary requested and transmits to the mobile terminal (1, 2) the data concerning the straight line and arc segments that constitute the itinerary, thereby permitting real-time guidance. The invention is further characterized by the fact that the server (5) evaluates the possibility of the craft deviating from its course, as well as by the fact that the server (5) also calculates and transmits the data concerning the segments of possible deviation itineraries in an area of proximity to the main itinerary. The invention can be applied in particular to automotive vehicles.
Inventors
- 👤 Jean-Michel Durocher
- 👤 Sophie Sommelet
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-28 06:29
CPC Classifications
G; G08; G08G; G08G1/00; G08G1/09; G08G1/0962; G08G1/0968; G08G1/096805; G08G1/096811; G01; G01C; G01C21/00; G01C21/26; G01C21/34; G01C21/3407; G01C21/3415; G01C21/36; G08G1/096822; G08G1/096833; G08G1/096844; G08G1/096855; G08G1/096872; G08G1/096877; G08G1/096883; G08G1/123; G08G1/127
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
266 words
Interactive process for use as a real-time navigational aid by which a
mobile terminal (1, 2), with means of positioning (18, 19) transmits,
through a wireless network, itinerary requests to a fixed server (5) which
transmits, in answer to the mobile terminal (1, 2) and using the same
network, itinerary date, characterized by the fact that the fixed server (5), is
a centralized server, the itinerary data comprise the latitudes and longitudes
of at least one extremities of the straight line or arc segments forming the
itinerary; by the fact that the mobile terminal (1, 2) develops real-time
guidance messages according to the position of the mobile terminal (1, 2)
compared to the itineraries received by the server (5); by the fact that, when
answering the mobile terminal (1, 2), the server (5) also transmits data
concerning the roads intersecting with the itinerary; by the fact that, when
answering the mobile terminal (1, 2) the server (5) also transmits data
concerning a proximity area around the itinerary; by the fact that if the
mobile terminal (1, 2) deviates from the itinerary by taking one the
intersections, the mobile terminal (1, 2) obtains, without any additional
connection to the server (5), a new itinerary according to its position and
the data of the proximity area and transmits guidance messages to this
effect; and by the fact that if the mobile terminal (1, 2) leaves the proximity
area, the mobile terminal (1, 2) automatically transmits a new itinerary
request to the server (5), a request which also includes data concerning the
position of the mobile terminal (1, 2).
Claim 2
Dependent Claim
123 words
Process according to claim 1, characterized by the fact that the server
(5) saves in its memory the itinerary and/or proximity area transmitted to
the mobile terminal (1, 2); by the fact that the server (5) receives real-time
information on the traffic and/or weather conditions; by the fact that the
server (5) verifies if some of this information concern segments which are
part of the itinerary or the proximity area; by the fact that, in the event of an
incident affecting the itinerary, the server (5) estimates the possibility of a
more advantageous itinerary; and by the fact that the server (5)
communicates with the mobile terminal (1, 2) in order to transmit data on
the incident and, if necessary, a new itinerary.
Claim 3
Dependent Claim
65 words
Process according to any of the claims 1 and 2, characterized by the fact
that the itinerary data sent by the server (5) comprise displays of the places
in the itinerary where a choice has to be made, and by the fact that the
displays are similar to the view a person can have of these places when
driving towards them while following the itinerary.
Claim 4
Dependent Claim
35 words
Process according to any of the claims 1 to 3, characterized by the fact
that the server (5) transmits data concerning general information on the
itinerary such as gas stations, restaurants, hotels or tourist data.
Claim 5
Dependent Claim
33 words
Process according to any of the claims 1 to 4, characterized by the fact
that the guidance messages and/or general information transmitted by the
mobile terminal (1, 2) are made in sound form.
Claim 6
Dependent Claim
80 words
Process according to claim 5, characterized by the fact that at least one
part of the sound messages are developed by the server (5) which transmits
them to the mobile terminal (1, 2) in digital audio form; by the fact that the
mobile terminal (1, 2) stores the sound messages, and by the fact that the
mobile terminal (1, 2) transmits, at an appropriate time according to its
position, the sound messages already stored, either as is or in combination.
Claim 7
Dependent Claim
22 words
Process according to any of the claims 1 to 6, characterized by the fact
that the requests are formulated in voice form.
Claim 8
Dependent Claim
116 words
Process according to claim 7, characterized by the fact that the mobile
terminal (1, 2) digitizes the voice requests; by the fact that the mobile
terminal (1, 2) extracts analysis parameters from them; by the fact that the
mobile terminal transmits its position and the analysis parameters to the
server (5); by the fact that the server (5) proceeds to an automatic
recognition of the voice requests based on the analysis parameters
transmitted; by the fact that the server (5) determines the nature of the
requests based on voice recognition and the position of the mobile terminal
(1, 2) and by the fact that the server (5) transmits its answer to the mobile
terminal (1, 2).
Claim 9
Dependent Claim
109 words
Process according to any of the claims 1 to 8, characterized by the fact
that the means of positioning of the mobile terminal (1, 2) comprise a
satellites positioning receiver (18, 19); by the fact that the server (5) obtains
differential information for correcting the satellites positioning system from
at least one fixed station (6) covering the operating area of the mobile
terminal (1, 2); by the fact that the server (5) transmits differential
information to the mobile terminal (1, 2), and by the fact that transmission
is executed through the same network used for the other data exchanges
between the mobile terminal (1, 2) and the server (5).
Claim 10
Dependent Claim
28 words
Process according to claim 9, characterized by the fact that the server
(5) uses SMS short messages to transmit corrective differential information
to the mobile terminal (1, 2).
Claim 11
Dependent Claim
25 words
Fixed server (5) for implementing any of the claims 1 to 10, characterized by the fact that the server (5) is an Internet server (5).
Claim 12
Dependent Claim
94 words
Process according to any of the claims 1 to 11, characterized by the
fact that the mobile terminal (1, 2) transmits its position to the server (5) on
a regular basis; by the fact that the positions are stored by the server (5); by
the fact that at least one third party terminal communicates with the server
(5) to transmit requests concerning the mobile terminal (1, 2) and by the
fact that the server (5) answers by transferring cartographic data
corresponding to at least one of the positions of the mobile terminal (1, 2).
Claim 13
Dependent Claim
54 words
Process according to any of the claims 1 to 12, characterized by the
fact that the server (5) receives a request for the calculation of an itinerary
from a third party terminal and by the fact that the server (5) transmits the
itinerary requested by the third party to the mobile terminal (1, 2).
Claim 14
Dependent Claim
66 words
Process according to any of the claims 1 to 13, characterized by the
fact that the server (5) transmits to the mobile terminal (1, 2), a computer
program through which it can execute navigational aid functions; by the
fact that the mobile terminal (1, 2) stores the program and by the fact that
the mobile terminal (1, 2) executes the program for performing
navigational aid functions.
Claim 15
Dependent Claim
43 words
Process according to any of the claims 1 to 14, characterized by the
fact that the mobile terminal (1, 2) is using a single radio communication
network for transmitting requests, for receiving itineraries answers and for
receiving corrective differential information of satellites positioning.
Claim 16
Dependent Claim
56 words
Process according to claim 15, characterized by the fact that the
communication module is a portable radiotelephone (1); by the fact that the
radiotelephone is connected in a removable way to an accessory (2) fixed
inside a vehicle, and by the fact that the accessory (2) is connected to or
integrates a satellites positioning receiver (19).
Claim 17
Dependent Claim
77 words
Process according to claim 16, characterized by the fact that the
radiotelephone (1) is portable; by the fact that it is connected to an
accessory (2) fixed inside a vehicle; by the fact that the accessory (2) is
connected or integrates a microphone (23), a digital-to-analog converter
(21) and the means for extracting the analysis parameters to be passed on to
the telephone (1) for transmission to the server (5) in view of a voice
recognition operation.
Claim 18
Dependent Claim
60 words
Process according to any of the claims 1 to 14, characterized by the
fact that the mobile terminal (1, 2) is formed of an electronic organizer, of a
radio communication module and a satellites positioning receiver and by
the fa-ct that, of the communications module and the satellites positioning
receiver, at least one or the other is a removable accessory.
References Cited (Backward Citations)
No citation records indexed.
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