Patent US2787553A successfully refreshed from Google Patents.
EP1035531A2
Expired / Lapsed
EP
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Information providing system for mobile units
Assignee: Hitachi Ltd
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Filing: 2000-02-29
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Granted: —
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Expires: 2020-02-29
Abstract
Abstract A server employed in the information providing system comprises a search engine (403) for searching a map data base (405) for a map suitable for a destination and the present position of the terminal received from the terminal, a route computing unit (406) for computing a guide route from the present position to the destination, a map display location determination unit (408) for determining a location at which route information including a map based on the calculated guide route is to be transmitted to the terminal and a thinning determination unit (412) for thinning the information to be transmitted based on information on the terminal received from the terminal. <IMAGE>
Inventors
- 👤 Kimiyoshi Machii
- 👤 Kazuyoshi Koga
- 👤 Shigeru Matsuo
- 👤 Yoshitaka Atarashi
- 👤 Soshiro Kuzunuki
- 👤 Keiko Abe
- 👤 Toshimi Yokota
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-30 12:25
CPC Classifications
G; G06; G06Q; G06Q50/00; G06Q50/10; G08; G08G; G08G1/00; G08G1/09; G08G1/0962; G08G1/0968; G08G1/096805; G08G1/096811; G01; G01C; G01C21/00; G01C21/26; G01C21/34; G01C21/36; G01C21/3626; G01C21/3655; G01C21/38; G01C21/3885; G01C21/3889; G08G1/096816; G08G1/096822; G08G1/096833; G08G1/096838; G08G1/096855; G08G1/096861; G08G1/096877; G08G1/096894
Claims Analysis
Total Claims: 31
Claim 1
Independent Claim
78 words
An information providing system comprising: a terminal (1306) mounted on a vehicle (1305) and used
for providing a route guide showing directions to a
destination; a server (1302) for providing information including at
least a map used in said route guide showing directions
to said destination; and an information providing timing determination means (107)
in either said server or said terminal for determining
timing to transmit information including at least said
map from said server to said terminal.
Claim 2
Dependent Claim
143 words
An information providing system according to claim 1
wherein: said terminal comprises: a destination setting means (700, 1801) for setting a
destination; a position detection means (102, 103) for detecting the
position of said vehicle; a display control means (106) for generating picture data
for said route guide by using information received from
said server and transferring said picture data to a
display means; and a terminal-side communication means (109) for carrying
out communications with said server, said information providing timing determination means has
a means for determining whether or not said vehicle has
arrived at a location determined in advance by using the
position of said vehicle detected by said position
detection means; and information including at least said map is downloaded
from said server to said terminal when said vehicle is
determined to have arrived at said location determined in
advance.
Claim 3
Dependent Claim
59 words
An information providing system according to claim 1
wherein said terminal has a means for allowing the user
to determine whether or not information including at
least said map is to be downloaded with said timing to
transmit said information including at least said map
from said server to said terminal determined by said
information providing timing determination means.
Claim 4
Dependent Claim
96 words
An information providing system according to claim 1
wherein said server comprises: a means (404, 410, 902) for forming a judgment as to
whether or not the user of said terminal is a member
cataloged in said information providing system; and
a means (408, 411) for providing at least one of vector
map data and image map data to said terminal if a result
of said judgment indicates that said user is a member or
said image map data to said terminal if said result of
said judgment indicates that said user is not a member.
Claim 5
Dependent Claim
108 words
An information providing system comprising: a terminal (1306) mounted on a vehicle (1305) and used
for providing a route guide showing directions to a
destination; a server (1302) for providing information including at
least a map used in said route guide showing directions
to said destination; and a means provided in either said terminal or said server
and used for acquiring information on resources presently
available in said terminal as well as calculating the
amount of information including at least said map in
accordance with said information on resources, wherein said server generates information to be
transmitted to said terminal in accordance with said
calculated amount of information.
Claim 6
Dependent Claim
30 words
An information providing system according to claim 5
wherein said information on resources available in said
terminal includes at least a memory size, a communication
rate or a display type.
Claim 7
Dependent Claim
87 words
An information providing system according to claim 2
wherein said location determined in advance is one of the
following: a location at which a map serving as a route guide is to
be displayed in said terminal; a position corresponding to said location;
a crossing at which the user of said terminal is supposed
to make a turn; a position corresponding to said crossing: and a position set by using a guide route found on the basis
of said destination and the present position of said
vehicle.
Claim 8
Dependent Claim
53 words
An information providing system according to claim 2
wherein said display control means employed in said
terminal executes control to display nothing or to show
no detailed display on said display means when said
vehicle is on a route provided by said guide at a
position different from said location determined in
advance.
Claim 9
Dependent Claim
105 words
An information providing system according to claim 1
wherein: either said terminal or said server is provided with:
a means for forming a judgment as to whether or not said
vehicle having said terminal mounted thereon has slipped
off from a route provided by said guide; and a means for re-computing a guide route leading to said
destination in case a result of said judgment indicates
that said vehicle has slipped off said route provided by
said guide, and said information providing timing determination means
determines a location to transmit information including
at least said map to said terminal by using said
re-computed guide route.
Claim 10
Dependent Claim
39 words
An information providing system according to claim 1
wherein said terminal has a user setting means (607) for
setting an identifier of the user of said terminal and
including said identifier in a communication packet
transmitted to said server.
Claim 11
Dependent Claim
31 words
An information providing system according to claim 10
wherein said terminal further has a storage means for
storing said user identifier and said destination till
said vehicle arrives at said destination.
Claim 12
Dependent Claim
20 words
An information providing system according to claim 2
wherein said terminal uses a portable telephone as said
terminal-side communication means.
Claim 13
Dependent Claim
43 words
An information providing system according to claim 12
wherein said terminal-side communication means executes
control to connect said terminal-side communication means
to said server when communication becomes necessary and
to disconnect said terminal-side communication means from
said server when said communication is completed.
Claim 14
Dependent Claim
37 words
An information providing system according to claim 10
wherein said terminal uses a portable telephone as a
means of communication with said server and the telephone
number of said portable telephone is used as said user
identifier.
Claim 15
Dependent Claim
53 words
An information providing system according to claim 1
wherein: said terminal further has a means for changing
information received from said server in order to allow
said received information to be displayed three-dimensionally;
and said display control means of said terminal uses said
changed information to generate picture data for a
three-dimensional display.
Claim 16
Dependent Claim
26 words
An information providing system according to claim 1
wherein said terminal has a means for computing a route
based on map data received from said server.
Claim 17
Dependent Claim
75 words
An information providing system according to claim 5
wherein: said server has a means for generating information on a
guide route leading to said destination: and said means for generating information on a guide route
assigns priority levels to map elements to be included in
map data constituting said information on a guide route
and generates said information on a guide route to be
transmitted from time to time in accordance with said
assigned levels.
Claim 18
Dependent Claim
29 words
An information providing system according to claim 17
wherein the highest one among said priority levels is
assigned to a road used as a route provided by said
guide.
Claim 19
Dependent Claim
41 words
An information providing system according to claim 18
wherein the second highest one among said priority levels
is assigned to a main road and a road existing in the
vicinity of a road used as said route provided by said
guide.
Claim 20
Dependent Claim
20 words
An information providing system according to claim 19
wherein said main road is either an expressway or a
national road.
Claim 21
Dependent Claim
52 words
An information providing system according to claim 1
wherein said information providing timing determination
means determines timing to transmit information including
at least said map to said terminal by using at least one
of information on resources currently available in said
terminal and information on a guide route leading to said
destination.
Claim 22
Dependent Claim
106 words
An information providing system according to claim 1
wherein: said server comprises: a route computing means (209, 406, 1011) for computing a
route to be traveled by said vehicle; a map transmission location determination means for
determining a location on said computed route to transmit
a map to said terminal; and a passing-through-time prediction means for predicting a
time at which said vehicle passes through said location
on said computed route to transmit a map to said
terminal, and said information providing timing determination means is
provided in said server and determines said time
predicted by said passing-through-time prediction means
as timing to transmit a map.
Claim 23
Dependent Claim
139 words
A terminal of an information providing system comprising: a terminal (1306) mounted on a vehicle and used for
providing a route guide showing directions to a
destination; and a server (1302) for providing information including at
least a map used in said route guide showing directions
to said destination, said terminal comprises: a destination setting means (700) for setting a
destination: a position detection means (102, 103) for detecting the
position of said vehicle; a display control means (106) for generating picture data
for said route guide by using information received from
said server and transferring said picture data to a
display means; a terminal-side communication means (109) carrying out
communications with said server; and an information providing timing determination means (107)
for determining timing to transmit information including
at least said map from said server to said terminal.
Claim 24
Dependent Claim
138 words
A server of an information providing system comprising: a terminal (1306) mounted on a vehicle and used for
providing a route guide showing directions to a
destination; and a server (1302) for providing information including at
least a map used in said route guide showing directions
to said destination, said server comprises: a server-side communication means for communicating with
said terminal; a map-data storage means (405) for storing map data;
a processing means for generating information including
at least said map data by utilizing information on said
destination and the position of said vehicle received
from said terminal and for transmitting said generated
information to said terminal by way of said server-side
communication means; and an information providing timing determination means for
determining timing to transmit information including at
least said map from said server to said terminal.
Claim 25
Dependent Claim
194 words
An information providing system comprising: a terminal (1306) mounted on a vehicle and used for
providing a route guide showing directions to a
destination; and a server (1302) for providing said terminal with
information including at least a place name and a map
used in said route guide showing directions to said
destination, wherein said server comprises: a candidate place name providing means (1801) for
executing the steps of: receiving a string of characters entered by the user to
said terminal and transmitted by said terminal to said
server wherein said string of characters represents a
portion of the place name of a destination to be used in
said route guide showing directions to said destination;
searching a data base (412) of place names by using index
information formed from said string of characters for
candidates for the place name of said destination
matching said string of characters; transmitting said candidates to said terminal; and
requesting said terminal to select one of said
candidates, and a map providing means for transmitting to said terminal a
map for a selected candidate for the place name of said
destination transmitted by said terminal to said server.
Claim 26
Dependent Claim
21 words
An information providing system according to claim 25
wherein map data provided by said map providing means is
vector map data.
Claim 27
Dependent Claim
50 words
An information providing system according to claim 26
wherein, when said server receives the place name of a
candidate selected by said terminal as requested by said
server, said map providing means clips a predetermined
range centering at said candidate from said map and
transmits said range to said terminal.
Claim 28
Dependent Claim
138 words
A server of an information providing system comprising: a terminal (1306) mounted on a vehicle and used for
providing a route guide showing directions to a
destination; and a server (1302) for providing said terminal with
information including at least a place name and a map
used in said route guide showing directions to said
destination, said server further comprising: a server-side communication means for communicating with
said terminal; a map-data storage means (405) for storing map data; and
a place-name storage means (412) for storing literal
phonetic transcriptions and correct spellings of place
names; a processing means for generating information including
at least said map by utilizing information on said
destination and the position of said vehicle received
from said terminal and for transmitting said generated
information to said terminal by way of said server-side
communication means.
Claim 29
Dependent Claim
71 words
An information providing system according to claim 25
wherein: said data base comprises literal phonetic transcriptions
of place names and correct spellings of said place names;
and said candidate place name providing means (1801) searches
said data base for a candidate one of said place names
matching index information formed from any string of
characters included in an input literal phonetic
transcription and transmits said candidate place name to
said terminal.
Claim 30
Dependent Claim
115 words
An information providing system according to claim 25
wherein: said candidate place name providing means has a character
transition table comprising transitions among at least 2
characters pertaining to any string of characters
included in any one of said literal phonetic
transcriptions and indexes associated with said
transitions; and said index information is formed from any string of
characters included in an input literal phonetic
transcription by said candidate place name providing
means by executing the steps of: searching said character transition table for particular
ones of said indexes matching any of said transitions in
said string of characters included in said input lateral
phonetic transcription; and composing said index information from said particular
indexes.
Claim 31
Dependent Claim
109 words
A server employed in an information providing system
comprising a search engine (403) for searching a map data
base (405) for a map suitable for a destination and the
present position of the terminal received from the
terminal, a route computing unit (406) for computing a
guide route from the present position to the destination,
a map display location determination unit (408) for
determining a location at which route information
including a map based on the calculated guide route is to
be transmitted to the terminal and a thinning
determination unit (412) for thinning the information to
be transmitted based on information on the terminal
received from the terminal.
References Cited (Backward Citations)
No citation records indexed.
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