EP1039721A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Information delivery to mobile computers using cache servers
Assignee: Toshiba Corp
•
Filing: 2000-03-24
•
Granted: —
•
Expires: 2020-03-24
Abstract
Abstract In the disclosed information delivery scheme for delivering WWW information provided by information servers on the Internet to mobile computers connected to the Internet through a wireless network, a plurality of cache servers capable of caching WWW information provided by the information servers are provided in association with the wireless network. The cache servers can be managed by receiving a message indicating at least a connected location of a mobile computer in the wireless network from the mobile computer, selecting one or more cache servers located nearby the mobile computer according to the message, and controlling these one or more cache servers to cache selected WWW information selected for the mobile computer, so as to enable faster accesses to the selected WWW information by the mobile computer. Also, the cache servers can be managed by selecting one or more cache servers located within a geographic range defined for an information provider who provides WWW information from an information server, and controlling these one or more cache servers to cache selected WWW information selected for the information provider, so as to enable faster accesses to the selected WWW information by the mobile computer.
Inventors
- 👤 Atsushi c/o Toshiba Corporation Inoue
- 👤 Eiji c/o Toshiba Corporation Kamagata
- 👤 Noriyasu c/o Toshiba Corporation Kato
- 👤 Naohisa c/o Toshiba Corporation Shibuya
- 👤 Yoshinari c/o Toshiba Corporation Kumaki
- 👤 Yasuro c/o Toshiba Corporation Shobatake
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 05:18
CPC Classifications
H; H04; H04L; H04L67/00; H04L67/2866; H04L67/289; G; G06; G06F; G06F16/00; G06F16/90; G06F16/95; G06F16/953; G06F16/9537; G06F16/957; G06F16/9574; H04L12/00; H04L12/02; H04L12/16; H04L12/18; H04L12/189; H04L67/01; H04L67/02; H04L67/04; H04L67/10; H04L67/1001; H04L67/1004; H04L67/1008; H04L67/1012; H04L67/288; H04L67/50; H04L67/51; H04L67/52; H04L67/56; H04L67/568; H04L67/5681; H04L67/5682; H04L9/00; H04L9/40; H04L69/00; H04L69/30; H04L69/32; H04L69/322; H04L69/329
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
135 words
An information delivery system for delivering WWW
information provided by information servers on Internet to
mobile computers connected to the Internet through a
wireless network, comprising: a plurality of cache servers provided in association
with the wireless network and configured to be capable of
caching WWW information provided by the information
servers; and a management unit configured to manage caching state
of the cache servers, by receiving a message indicating at
least a connected location of a mobile computer in the
wireless network from the mobile computer, selecting one or
more cache servers located nearby the mobile computer
according to the message, and controlling said one or more
cache servers to cache selected WWW information selected
for the mobile computer, so as to enable faster accesses to
the selected WWW information by the mobile computer.
Claim 2
Dependent Claim
24 words
The system of claim 1, wherein the selected WWW
information is selected according to an information related
to a user of the mobile computer.
Claim 3
Dependent Claim
26 words
The system of claim 1, wherein the selected WWW
information is selected according to an information related
to an information provider of the selected WWW information.
Claim 4
Dependent Claim
60 words
The system of claim 1, wherein the mobile computer
sends the message containing identification information for
specifying one or more WWW information, at least at a time
of network connection; and the management unit controls said one or more cache
servers to cache WWW information selected according to the
identification information contained in the message as the
selected WWW information.
Claim 5
Dependent Claim
87 words
The system of claim 1, wherein the mobile computer
sends the message containing a user ID of a user of the
mobile computer; and the management unit registers in advance user IDs of
users of the mobile computers in correspondence to
respective identification information for specifying one or
more WWW information, and controls said one or more cache
servers to cache said one or more information specified by
the identification information registered in correspondence
to the user ID contained in the message as the selected WWW
information.
Claim 6
Dependent Claim
155 words
The system of claim 1, wherein the mobile computer
sends the message containing a user ID of a user of the
mobile computer; and the management unit registers in advance a
correspondence between a user ID of each user of each
mobile computer and one or more information provider IDs of
those information providers who wish to provide services to
said each user and a correspondence between each
information provider ID of each information provider and
one or more WWW information IDs of those WWW information
which are to be provided by said each information provider,
searches the information provider IDs registered in
correspondence to the user ID contained in the message,
searches the WWW information IDs registered in
correspondence to each information provider ID found by a
search, and controls said one or more cache servers to
cache WWW information having the WWW information IDs found
by a search as the selected WWW information.
Claim 7
Dependent Claim
70 words
The system of claim 1, wherein either the mobile
computer or the management unit predicts another one or
more cache servers to be selected when a need to change
cache servers nearby the mobile computer due to moving of
the mobile computer is predicted to arise, and the management unit controls said another one or more
cache servers to cache the selected WWW information
according to a result of prediction.
Claim 8
Dependent Claim
54 words
The system of claim 1, wherein the management unit
maintains an update frequency information indicating an
update frequency of WWW information provided by each
information provider, and controls said one or more cache
servers to carry out a cache update processing with respect
to the selected WWW information according to the update
frequency information.
Claim 9
Dependent Claim
68 words
The system of claim 1, wherein the management unit
changes the selected WWW information cached in said one or
more cache servers according to at least one of a
likelihood by which each WWW information is expected to be
accessed and a priority level determined for each WWW
information, when a cache state of any one of said one or
more cache servers reaches to a prescribed criterion.
Claim 10
Dependent Claim
73 words
The system of claim 1, wherein the wireless network
comprises a first network for providing data transmission
at relatively low transfer rate, and a second network for
providing data transmission at relatively high transfer
rate at least in a downlink direction, and the management unit receives the message from the
mobile computer via the first network, and the cache
servers transfer the selected WWW information to the mobile
computer via the second network.
Claim 11
Dependent Claim
123 words
An information delivery system for delivering WWW
information provided by information servers on Internet to
mobile computers connected to the Internet through a
wireless network, comprising: a plurality of cache servers provided in association
with the wireless network and configured to be capable of
caching WWW information provided by the information
servers; and a management unit configured to manage caching state
of the cache servers, by selecting one or more cache
servers located within a geographic range defined for an
information provider who provides WWW information from an
information server, and controlling said one or more cache
servers to cache selected WWW information selected for the
information provider, so as to enable faster accesses to
the selected WWW information by the mobile computer.
Claim 12
Dependent Claim
51 words
The system of claim 11, wherein information providers
are classified into a plurality of classes, and said one or
more cache servers and the selected WWW information are
specified by the information provider in accordance with a
predetermined range of numbers permitted for a class to
which the information provider belongs.
Claim 13
Dependent Claim
54 words
The system of claim 11, wherein the management unit
maintains an update frequency information indicating an
update frequency of WWW information provided by each
information provider, and controls said one or more cache
servers to carry out a cache update processing with respect
to the selected WWW information according to the update
frequency information.
Claim 14
Dependent Claim
68 words
The system of claim 11, wherein the management unit
changes the selected WWW information cached in said one or
more cache servers according to at least one of a
likelihood by which each WWW information is expected to be
accessed and a priority level determined for each WWW
information, when a cache state of any one of said one or
more cache servers reaches to a prescribed criterion.
Claim 15
Dependent Claim
73 words
The system of claim 1, wherein the wireless network
comprises a first network for providing data transmission
at relatively low transfer rate, and a second network for
providing data transmission at relatively high transfer
rate at least in a downlink direction, and the management unit receives a message from the mobile
computer via the first network, and the cache servers
transfer the selected WWW information to the mobile
computer via the second network.
Claim 16
Independent Claim
125 words
A method for delivering WWW information provided by
information servers on Internet to mobile computers
connected to the Internet through a wireless network, using
a plurality of cache servers provided in association with
the wireless network and configured to be capable of
caching WWW information provided by the information
servers, the method comprising the steps of: receiving a message indicating at least a connected
location of a mobile computer in the wireless network from
the mobile computer; selecting one or more cache servers located nearby the
mobile computer according to the message; and controlling said one or more cache servers to cache
selected WWW information selected for the mobile computer,
so as to enable faster accesses to the selected WWW
information by the mobile computer.
Claim 17
Independent Claim
113 words
A method for delivering WWW information provided by
information servers on Internet to mobile computers
connected to the Internet through a wireless network, using
a plurality of cache servers provided in association with
the wireless network and configured to be capable of
caching WWW information provided by the information
servers, the method comprising the steps of: selecting one or more cache servers located within a
geographic range defined for an information provider who
provides WWW information from an information server; and controlling said one or more cache servers to cache
selected WWW information selected for the information
provider, so as to enable faster accesses to the selected
WWW information by the mobile computer.
Claim 18
Dependent Claim
146 words
A management device for use in an information delivery
system for delivering WWW information provided by
information servers on Internet to mobile computers
connected to the Internet through a wireless network, using
a plurality of cache servers provided in association with
the wireless network and configured to be capable of
caching WWW information provided by the information
servers, the management device comprising: a first unit configured to receive a message
indicating at least a connected location of a mobile
computer in the wireless network from the mobile computer; a second unit configured to select one or more cache
servers located nearby the mobile computer according to the
message; and a third unit configured to control said one or more
cache servers to cache selected WWW information selected
for the mobile computer, so as to enable faster accesses to
the selected WWW information by the mobile computer.
Claim 19
Dependent Claim
129 words
A management device for use in an information delivery
system for delivering WWW information provided by
information servers on Internet to mobile computers
connected to the Internet through a wireless network, using
a plurality of cache servers provided in association with
the wireless network and configured to be capable of
caching WWW information provided by the information
servers, the management device comprising: a first unit configured to select one or more cache
servers located within a geographic range defined for an
information provider who provides WWW information from an
information server; and a second unit configured to control said one or more
cache servers to cache selected WWW information selected
for the information provider, so as to enable faster
accesses to the selected WWW information by the mobile
computer.
Claim 20
Dependent Claim
196 words
A mobile computer device for use in an information
delivery system for delivering WWW information provided by
information servers on Internet to mobile computers
connected to the Internet through a wireless network, using
a plurality of cache servers provided in association with
the wireless network and configured to be capable of
caching WWW information provided by the information
servers, the mobile computer device comprising: a first unit configured to maintain a user ID of a
user of the mobile computer device; a second unit configured to obtain a connected
location information regarding a connection location of the
mobile computer device in the wireless network; and a third unit configured to notify a message containing
at least the user ID and the connection location
information, to a management device for managing caching
state of the cache servers, such that the message causes
the management device to select one or more cache servers
located nearby the mobile computer device according to the
message and control said one or more cache servers to cache
selected WWW information selected for the mobile computer
device, so as to enable faster accesses to the selected WWW
information by the mobile computer device.
Claim 21
Dependent Claim
47 words
The mobile computer device of claim 20, wherein the
third unit notifies the message which also contains a
bookmark information of a WWW browser operating on the
mobile computer device, such that the selected WWW
information is selected according to the bookmark
information contained in the message.
Claim 22
Dependent Claim
151 words
A cache server device for use in an information
delivery system for delivering WWW information provided by
information servers on Internet to mobile computers
connected to the Internet through a wireless network, using
a plurality of cache servers provided in association with
the wireless network, the cache server device comprising: a cache memory configured to cache WWW information
provided by the information servers; and a caching processing unit configured to acquire
selected WWW information selected for a mobile computer
from the information servers and store the selected WWW
information into the cache memory, when the cache server
device is included in one or more cache servers located
nearby the mobile computer according to a message
indicating at least a connection location of the mobile
computer in the wireless network which is sent by the
mobile computer, so as to enable faster accesses to the
selected WWW information by the mobile computer.
Claim 23
Dependent Claim
139 words
A cache server device for use in an information
delivery system for delivering WWW information provided by
information servers on Internet to mobile computers
connected to the Internet through a wireless network, using
a plurality of cache servers provided in association with
the wireless network, the cache server device comprising: a cache memory configured to cache WWW information
provided by the information servers; and a caching processing unit configured to acquire from
an information server selected WWW information selected for
an information provider who provides WWW information from
the information server and store the selected WWW
information into the cache memory, when the cache server
device is included in one or more cache servers located
within a geographic range defined for the information
provider, so as to enable faster accesses to the selected
WWW information by the mobile computer.
Claim 24
Independent Claim
159 words
A method for providing a caching service with respect
to a specific user in a system for delivering WWW
information provided by information servers on Internet to
mobile computers connected to the Internet through a
wireless network, the method comprising the steps of: registering the specific user as a premier user in an
information delivery system having a plurality of cache
servers provided in association with the wireless network
and configured to be capable of caching WWW information
provided by the information servers; and upon receiving a message indicating at least a
connected location of a mobile computer in the wireless
network from the mobile computer operated by the specific
user, selecting one or more cache servers located nearby
the mobile computer according to the message and
controlling said one or more cache servers to cache
selected WWW information selected for the specific user, so
as to enable faster accesses to the selected WWW
information by the mobile computer.
Claim 25
Independent Claim
145 words
A method for providing a caching service with respect
to a specific information provider in a system for
delivering WWW information provided by information servers
on Internet to mobile computers connected to the Internet
through a wireless network, the method comprising the steps
of: registering the specific information provider who
provides WWW information from an information server as a
premier sponsor in an information delivery system having a
plurality of cache servers provided in association with the
wireless network and configured to be capable of caching
WWW information provided by the information servers; and selecting one or more cache servers located within a
geographic range defined for the specific information
provider, and controlling said one or more cache servers to
cache selected WWW information selected for the specific
information provider, so as to enable faster accesses to
the selected WWW information by the mobile computer.
References Cited (Backward Citations)
No citation records indexed.
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