AAOAAA LOY AAA
`
`US 20020150228A1
`
`as) United States
`a2) Patent Application Publication 0) Pub. No.: US 2002/0150228 Al
`
` Umedaetal. (43) Pub. Date: Oct. 17, 2002
`
`
`(54) MOBILE COMMUNICATION SYSTEM,
`RESOURCE SWITCHING METHOD
`THEREOF, NETWORK CONTROL
`APPARATUS INCLUDED THEREIN, SAME
`AND NETWORK CONTROL METHOD
`
`(76)
`
`Inventors: Narumi Umeda, Kanazawa - ku (JP);
`Tsutomu Yokoyama, Kanazawa- ku
`(JP); Sadayuki Hongo, Kohnan- ku
`(JP)
`
`Correspondence Address:
`OBLON SPIVAK MCCLELLAND MAIER &
`NEUSTADT PC
`FOURTH FLOOR
`1755 JEFFERSON DAVIS HIGHWAY
`ARLINGTON, VA 22202 (US)
`
`(21) Appl. No.:
`
`10/089,081
`
`(22)
`
`PCTFiled:
`
`Aug. 10, 2001
`
`(86) PCT No.:
`
`PCT/JP01/06937
`
`(30)
`
`Foreign Application Priority Data
`
`Aug. 10, 2000
`
`(IP) we eeeeecsescsescssscneeeseesees 2000-243289
`Lo
`.
`.
`Publication Classification
`
`(51)
`Int. Ch?ee H04M 7/00; HO4M 11/00
`(52) US. C1. eeeceecseesesesscsnecnneenee 379/220.01; 455/403
`(57)
`ABSTRACT
`The present invention relates to a mobile communication
`system comprising a structure for realizing “network seam-
`less” for roaming between different kinds of networks,
`“contents seamless” for converting different kinds of encod-
`ing or media therebetween, and “device seamless” for mak-
`ing it possible to utilize optimum I/O devices in conformity
`to surrounding environments. This mobile communication
`system detects a change in an environmentin use concerning
`an object such as a mobile terminal, for example, notifies at
`least one apparatus relating to the change of the result of
`detection, sets various resources constituting a network in
`conformity to a new environment, and switches them. This
`makes it possible to construct a seamless network which
`automatically eliminates seams (restrictions) concerning
`changes in the environment andthelike.
`
`
`
`
`COMMUNICATION
`TERMINAL
`
`300
`
`100
`200
`
`NW
` 104
`
`
`WIRLESSJF
`SECTION
`
`NW CONTROL
`
`SECTION
`
`
`
`
`
`
`
`SERVICE
`GATEWAY
`
`SERVERI/F
`SECTION
`
`INFORMATION
`S TERMINAL
`
`
`
`250a ‘
`
`
`
`
`
`
`
`TO ANOTHER NW
`
`INFORMATION
`CONVERTING
`APPARATUS
`
`IPR2017-02056, Petitioner Google Inc.
`Ex. 1012, p. 1
`
`IPR2017-02056, Petitioner Google Inc.
`Ex. 1012, p. 1
`
`

`

`Patent Application Publication
`
`Oct. 17, 2002 Sheet 1 of 8
`
`US 2002/0150228 Al
`
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`IPR2017-02056, Petitioner Google Inc.
`Ex. 1012, p. 2
`
`IPR2017-02056, Petitioner Google Inc.
`Ex. 1012, p. 2
`
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`

`

`Patent Application Publication Oct. 17,2002 Sheet 2 of 8
`
`US 2002/0150228 Al
`
`102
`
`CONTROL
`SECTION
`
`RESOURCE
`MANAGING
`SECTION
`
`LINE SWITCHING
`‘SECTION
`
`CONTENTS
`MANAGING
`SECTION
`
`INFORMATION
`CONVERSION
`
`Fig.2
`
`Fig.3
`
`206
`
`NW DETECTING
`
`MANAGING SECTION
`204
`
`SECTION
`
` TERMINALI/FSECTION
`
`CONTROLSECTION
`
`
`
`
`
`NW COMMUNICATING
`SECTION
`
`208
`
`200
`
`IPR2017-02056, Petitioner Google Inc.
`Ex. 1012, p. 3
`
`IPR2017-02056, Petitioner Google Inc.
`Ex. 1012, p. 3
`
`

`

`Patent Application Publication
`
`Oct. 17, 2002 Sheet 3 of 8
`
`US 2002/0150228 Al
`
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`IPR2017-02056, Petitioner Google Inc.
`Ex. 1012, p. 4
`
`IPR2017-02056, Petitioner Google Inc.
`Ex. 1012, p. 4
`
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`

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`Patent Application Publication Oct. 17,2002 Sheet 4 of 8
`
`US 2002/0150228 Al
`
`Fig.
`
`NW INTERFACE
`SECTION
`
`INFORMATION
`oun
`
`CONTROL SECTION
`
`402
`
`406
`
`Fig.6
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`AUDIO
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`MOVING
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`
`IPR2017-02056, Petitioner Google Inc.
`Ex. 1012, p. 5
`
`IPR2017-02056, Petitioner Google Inc.
`Ex. 1012, p. 5
`
`

`

`Patent Application Publication
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`IPR2017-02056, Petitioner Google Inc.
`Ex. 1012, p. 6
`
`IPR2017-02056, Petitioner Google Inc.
`Ex. 1012, p. 6
`
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`Patent Application Publication
`
`Oct. 17, 2002 Sheet 6 of 8
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`US 2002/0150228 Al
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`IPR2017-02056, Petitioner Google Inc.
`Ex. 1012, p.7
`
`IPR2017-02056, Petitioner Google Inc.
`Ex. 1012, p. 7
`
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`

`

`Patent Application Publication
`
`Oct. 17,2002 Sheet 7 of 8
`
`US 2002/0150228 Al
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`IPR2017-02056, Petitioner Google Inc.
`Ex. 1012, p. 8
`
`IPR2017-02056, Petitioner Google Inc.
`Ex. 1012, p. 8
`
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`

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`Patent Application Publication Oct. 17,2002 Sheet 8 of 8
`
`US 2002/0150228 Al
`
`
`
`
` MEDIA*CONVERSION
` SION
`
`ENCODINGCONVE
`
`IPR2017-02056, Petitioner Google Inc.
`Ex. 1012, p. 9
`
`IPR2017-02056, Petitioner Google Inc.
`Ex. 1012, p. 9
`
`

`

`US 2002/0150228 Al
`
`Oct. 17, 2002
`
`MOBILE COMMUNICATION SYSTEM,
`RESOURCE SWITCHING METHOD THEREOF,
`NETWORK CONTROL APPARATUS INCLUDED
`THEREIN, SAME AND NETWORK CONTROL
`METHOD
`
`TECHNICAL FIELD
`
`[0001] The present invention relates to a mobile commu-
`nication system, a resource switching methodthereof, and a
`network control apparatus and network control method
`included in the same.
`
`BACKGROUND ART
`
`[0002] Conventional mobile communication systems have
`been realized as information providing systems in which
`users operate mobile terminals (mobile stations) so as to
`connect them to the Internet and browse, via the mobile
`terminals, web information provided by WWW servers.
`Examples of such information providing systems include
`i-scheme
`service
`(service name) provided by NTT
`DoCoMo,Inc., and the like.
`
`DISCLOSURE OF THE INVENTION
`
`[0003] The inventors studied the conventional mobile
`communication systems and, as a result, have found the
`following problems. Namely, while browsing information
`via a mobile terminal concerning an information providing
`service in the conventional mobile communication systems,
`a user cannot
`interchange visual
`information and audio
`information with each other without manually switching
`contents even when images shown on a display become
`invisible due to the surrounding darkness, the user rides on
`a train or bus, and so forth, for example. In other words,
`there have been no mobile communication systems which
`can browse web information items provided by WWW
`servers while switching them in response to environments in
`which mobile terminals are used.
`
`[0004] Also, there have been no mobile communication
`systems enabling contents to be automatically switched, for
`example, when a user browsing information via a mobile
`terminal changes the terminal for browsing information.
`Further, there have been no mobile communication systems
`which can browse network resources while switching them
`according to contents to be browsed, for example, in the case
`where provided contents are changed from visual informa-
`tion to audio information, unless a user browsing informa-
`tion via a mobile terminal manually switches the network
`resources.
`
`[0005] For overcoming the above-mentioned problems,it
`is an object of the present invention to provide a mobile
`communication system comprising a structure for automati-
`cally eliminating various seams (restrictions) in mobile
`communications and makingit possible to construct a seam-
`less network which can respond to environmental changes
`and the like, a resource switching method therefor, a net-
`work control apparatus included in the same and a network
`control method.
`
`the
`[0006] For achieving the above-mentioned object,
`mobile communication system according to the present
`invention comprises, at least, detecting means, reporting
`means, setting means, and switching means. The detecting
`
`means detects at least a change in an environment in which
`an object to be inspected exists and a change in a capability
`of the object to be inspected. The reporting meansnotifies at
`one or more apparatuses relating to the change detected by
`the detecting meansofat least a result of the detection. The
`setting means newlysets at least one of a network resource
`and an information format
`in conformity to the change
`detected by the detecting means. Then, the switching means
`switches the network resources and information format into
`
`a content set by the setting means.
`
`In the mobile communication system comprising
`[0007]
`the configuration mentioned above,
`the object
`to be
`inspected includesat least one of a communication terminal,
`transmission meansfor a radio area, and transmission means
`within a network. The network resource includesat least one
`of a wireless communication channel, a transmitter/receiver,
`a line within a network, a communication node apparatus, a
`communication terminal, an information switching appara-
`tus, and an information converting apparatus.
`
`In the mobile communication system according to
`[0008]
`the present invention, the switching means includes infor-
`mation converting apparatus which carries out, as the
`switching of information format, changing of media (sound,
`image,text, etc.) transferred over a network or changing of
`a transmission quality in the same media such as encoding
`scheme and encodingrate. Here, the information converting
`apparatus includes,at least, a network interface surface, an
`information converting section, and a control section. The
`network interface section transmits/receives information
`to/from a resource constituting a network. The information
`converting section converts the format of information cap-
`tured by way of the network interface section into another
`format, and transmits thus converted information onto the
`network by way of the network interface section. The
`control section controls the information converting section
`according to an instruction from a network control section
`controlling the network.
`
`[0009] The network control method according to the
`present invention successively executes a receiving step, a
`determining step, and a controlling step. Here, the receiving
`step receives a detection report of at least one of a change in
`an environmentin which an object to be inspected exists and
`a change in a capability of the object to be inspected from
`the object to be inspected. The determining step determines
`at least one of a network resource and an information format
`
`suitable for the change specified by the detection report
`received from the object to be inspected. The controlling
`step controls the object to be inspected concerning at least
`one of the determined network resource and information
`
`format so that the object conforms to the detected change.
`The network control apparatus realizing such a network
`control method comprises receiving means, determining
`means, and control means for executing the receiving step,
`determining step, and controlling step respectively.
`
`[0010] The resource switching method of the mobile com-
`munication system comprising the structure mentioned
`above comprises a detecting step, a reporting step, a setting
`step, and a switching step. The detecting step detects at least
`one of a change in an environment in which an object to be
`inspected exists and a change in a capability of the object to
`be inspected. The reporting step notifies at least one of
`apparatus relating to the change detected by the detecting
`
`IPR2017-02056, Petitioner Google Inc.
`Ex. 1012, p. 10
`
`IPR2017-02056, Petitioner Google Inc.
`Ex. 1012, p. 10
`
`

`

`US 2002/0150228 Al
`
`Oct. 17, 2002
`
`meansof a result of the detection. The setting step newly sets
`at least one of a network resource and an information format
`
`in conformity to the change detected by the detecting step.
`Then, the switching step switches the network resource and
`information format into a content newly set by the setting
`step. Specifically, the switching step includes, as the switch-
`ing of information format, a step of changing media (sound,
`image, text, etc.) transferred over a network or changing a
`transmission quality in the same media such as encoding
`scheme and encodingrate.
`
`given by wayof illustration only, and thus should not be
`considered limitative of the present invention.
`
`[0014] Also, further scope of applicability of the present
`invention will become apparatus from the detailed descrip-
`tion given hereinafter. However, it is clear that the detailed
`description and specific examples, while indicating pre-
`ferred embodiments of the invention, are given by way of
`illustration only, and various changes and modifications
`within the spirit and scope of the invention will become
`apparent to those skilled in the art from this detailed descrip-
`tion.
`
`BRIEF DESCRIPTION OF THE DRAWINGS
`
`In the mobile communication system according to
`[0011]
`the present invention and the resource switching method
`thereof, as mentioned above, when a change in an environ-
`ment in use or the like concerning an object is detected in
`[0015] FIG.1is a diagram showing an example of sche-
`any of apparatus in the mobile communication system,e.g.,
`matic configuration of the mobile communication system
`a mobile terminal, an information processing apparatus
`according to the present invention;
`connected thereto, a node within a network, and a node
`connected to the network, the change in environmentor the
`like is reported to at least one apparatus relating to the
`change, and various resources are set up in thus notified
`apparatus so as to respondto the new environmentor the like
`and switched. Thus, the mobile communication system and
`the resource switching method thereof automatically elimi-
`nate various seams(restrictions) in mobile communications,
`thereby making it possible to construct a seamless network
`which can respond to various environmental changes.
`Namely, the mobile communication system and the resource
`switching method thereof enable “network seamless” for
`roaming between different kinds of networks, “contents
`seamless” for converting different kinds of encoding or
`media therebetween, and “device seamless” for making it
`possible to utilize optimum I/O devices in conformity to
`surrounding environments. Also, such a configuration effi-
`ciently detects changes in electromagnetic wave environ-
`ments in wireless areas, changes in environments surround-
`ing terminals, changes in capabilities of terminals, changes
`in transmission networks, changes in provided contents, and
`the like.
`
`[0016] FIG. 2 is a block diagram showing a schematic
`configuration of the NW control section 102 shown in FIG.
`1;
`
`[0017] FIG. 3 is a block diagram showing a schematic
`configuration of the communication terminal shown in FIG.
`1;
`
`[0018] FIG. 4 is a block diagram showing a schematic
`configuration of the information terminal shownin FIG.1;
`
`[0019] FIG. 5 is a block diagram showing a schematic
`configuration of
`the information converting apparatus
`shown in FIG. 1;
`
`[0020] FIG. 6 is a table for explaining an example of
`information conversion carried out in the information con-
`verting apparatus shown in FIG. 5;
`
`[0021] FIG. 7 is a chart showing an example of commu-
`nication sequence in a case (media conversion) where, in
`response to a change in an environment surrounding a
`terminal, contents transmitted to the terminal are changed
`from text information to audio information in the mobile
`communication system according to the present invention
`and the resource switching method thereof;
`
`[0022] FIG. 8 is a chart showing an example of commu-
`nication sequencein a case where the rate of an image codec
`is changed in responseto a change in a wireless environment
`(transmission capability) in the mobile communication sys-
`tem according to the present invention and the resource
`switching method thereof;
`
`[0023] FIG. 9 is a chart showing an example of commu-
`nication sequence in a case where media and transmission
`means for contents are changed in response to a change in
`an environment surrounding a terminal in the mobile com-
`munication system according to the present invention and
`the resource switching method thereof; and
`
`[0024] FIG. 10 is a view showing an example of image
`realizing a video conference employing the mobile commu-
`nication system according to the present invention.
`
`BEST SCHEMES FOR CARRYING OUT THE
`INVENTION
`
`[0012] Here, “transmission means for a radio area” refers
`to a wireless communication channel for transmitting infor-
`mation, apparatus for transmitting/receiving information in
`this channel, and the like. Setting parameters of the wireless
`communication channel vary depending on wireless access
`schemes.
`In FDMA scheme,
`for example,
`the wireless
`channelis represented by a radio frequency.It is represented
`by a radio frequency and a slot number in TDMAscheme,
`and by a radio frequency and a spreading code in CDMA
`scheme. On the other hand, “transmission means within a
`network” is a line connecting communication nodes, and
`includes various schemes such as STM, ATM, and WDM. A
`communication node apparatus for carrying out communi-
`cations by a line, and the like are included in the “transmis-
`sion means within a network.” Further, “network resource”
`refers to transmission means for transmitting information,
`for example, such as wireless communication channels,
`transmitters/receivers, lines within a network, communica-
`tion node apparatus, communication terminals, and the like.
`Information switching apparatus,
`information converting
`apparatus, and the like are also included in the “network
`resource.”
`
`[0013] Embodiments according to the present invention
`will become more fully understood from the detailed
`description given hereinbelow. These embodiments are
`
`In the following, embodiments of the mobile com-
`[0025]
`munication system according to the present invention and
`the resource switching method thereof will be explained
`
`IPR2017-02056, Petitioner Google Inc.
`Ex. 1012, p. 11
`
`IPR2017-02056, Petitioner Google Inc.
`Ex. 1012, p. 11
`
`

`

`US 2002/0150228 Al
`
`Oct. 17, 2002
`
`with reference to FIGS. 1 to 10. In the explanation of the
`drawings, parts and constituents identical to each other will
`be referred to with numerals orletters identical to each other
`without repeating their overlapping descriptions.
`
`[0026] FIG. 1 is a diagram showing an example of sche-
`matic configuration of the mobile communication system
`according to the present invention. This mobile communi-
`cation system comprises, at least, a network NW100,infor-
`mation communication terminals, an information converting
`apparatus 400 connected to the network NW100, and a
`contents server group 500. The information communication
`terminals include a separate type information communica-
`tion terminal 250a constituted by a communication terminal
`200 and an information terminal 300 connected thereto, and
`an integrated information communication terminal 2505 in
`which they are integrated together.
`
`[0027] The network NW100 includes an NW control
`section 102, a wireless interface section 104, a service server
`interface section 106, and a gateway section 108; connects
`the communication terminal 200,
`information converting
`apparatus 400, and contents server group 500 to each other;
`and switches lines and packets for mobile communications.
`The network NW100 may include one of networks such as
`the Internet, intranet, LAN (either wired or wireless), public
`telephone network, (either analog or digital), mobile line
`switching network/mobile packet switching network of
`PDC/PDC-P scheme or the like, paging network, PHS
`network, and satellite communication network. Also,
`the
`network NW100 includes a network connected to a plurality
`of routers through which packets are transmitted while being
`routed.
`
`[0028] The NW control section 102 is connected to the
`wireless interface section 104, service server interface sec-
`tion 106, and gateway section 108; comprises a storage for
`storing network control programs, programsspecifying vari-
`ous communication processing procedures, and required
`data; and controls the network NW100. The wireless inter-
`face section 104 is connected to the NW control section 102
`and enables wireless communications with the communica-
`tion terminal 200. The service server interface section 106 is
`connected to the NW control section 102, and has an
`interface function with the information converting apparatus
`400 and contents server group 500. The gateway section 108
`is connected to the NW control section 102, and has a
`gateway function with respect to other networks.
`
`[0029] FIG. 2 is a block diagram showing a schematic
`configuration of the NW control section 102 shown in FIG.
`1. The NW control section 102 is depicted in FIG.1 as being
`concentrated at one location within the network 100. How-
`
`ever, the NW control may also be carried out at a plurality
`of locations in a decentralized manner (ie., a plurality of
`NW control sections may be provided within the network
`NW 100). When the network NW100 is formed by a
`plurality of routers and transmnission lines and the like
`connecting them, for example, the NW control section may
`be constituted by the plurality of routers.
`
`[0030] The configuration and operation of the NW control
`section 102 will now be explained.
`
`[0031] The NW control section 102 comprises,at least, a
`control section 110, a resource managing section 112, a line
`switching section 114, a contents managing section 116, and
`
`an information conversion managing section 118. The con-
`trol section 110 controls the whole NW control section 102
`in a centralized manner. Also,
`the control section 110
`controls mutual information exchanges between a plurality
`of function blocks connected thereto. Further, as required,
`the control section 110 instructs the resource managing
`section 112 to change amounts of allocation of various
`resources assigned to or used in terminals, calls, flows, or
`sessions under control or stop allocating them. In addition,
`when communications are newly started, the control section
`110 instructs the resource managing section 112 to allocate
`resources. On the other hand, concerning terminals,calls,
`flows, or sessions under control,
`the control section 110
`instructs the line switching section 114 to switch lines for
`transmitting information within the network NW100 or
`carry out line switching/routing control for switching packet
`routing in the case of a packet network as required. Also, the
`control section 110 orders routing control of information
`signals from other networks as required. The control section
`110 instructs the contents managing section 116 on media,
`encoding schemes, encoding rates, and the like of informa-
`tion being communicated or about to be communicated for
`each terminal, call,
`flow, or session. When information
`exchange is necessary in terminals,calls, flows, or sessions
`under control, the control section 110 instructs the informa-
`tion conversion managing section 118 on information media,
`encoding schemes, encoding rates, and the like before and
`after conversion.
`
`[0032] The resource managing section 112 is connected to
`the control section 110, and orders changesin allocation of
`various resources (resource management) such as the wire-
`less interface section 104, wired/wireless information trans-
`mission lines within the network NW100 such as wired
`transmission lines within the network which are not
`
`depicted, and apparatus for transmission, and amounts of
`allocation of resources for each terminal, call,
`flow, or
`session. The line switching section 114 is connected to the
`control section 110 and controls operations of the gateway
`section 108. The line switching section 114 not only controls
`routing of information signals from other networks, but also
`switches lines for transmitting information within the net-
`work NW100 and carries out switching control (line switch-
`ing/routing control) of packet routing for each terminal, call,
`flow, or session in a packet network.
`
`[0033] On the other hand, the contents managing section
`116 is connected to the control section 110. For each
`
`terminal, call, flow, or session, the contents managing sec-
`tion 116 manages provided contents,
`information media,
`encoding schemes, encoding rates, and the like, and orders
`media, encoding schemes, encoding rates, and the like of
`information being communicated or exchanges information
`with the service server group 500 and information convert-
`ing apparatus 400 by way of the service server interface
`section 106 as required.
`
`[0034] The information conversion managing section 118
`is connected to the control section 110. The information
`conversion managing section 118 determines whetheror not
`information conversion is required for a terminal, call, flow,
`or session, and manages information media, encoding
`schemes, encoding rates, and the like before and after
`conversion whenit is determined that the information con-
`version is necessary. Also, when necessary, the information
`conversion managing section 118 instructs, by way of the
`
`IPR2017-02056, Petitioner Google Inc.
`Ex. 1012, p. 12
`
`IPR2017-02056, Petitioner Google Inc.
`Ex. 1012, p. 12
`
`

`

`US 2002/0150228 Al
`
`Oct. 17, 2002
`
`service server interface section 106, the service server group
`500 and information converting apparatus 400 on media,
`encoding schemes, encoding rates, and the like of informa-
`tion being communicated or exchanges information there-
`with.
`
`[0035] The communication terminal 200 shown in FIG. 1
`is connected to the information terminal 300, and carries out
`wireless communications with the wireless interface section
`104. Here, the communication terminal 200 may be any of
`a pager, a PHS terminal a mobile terminal (including one
`conforming to IMT-2000), a mobile information terminal
`(PDA) equipped with a communication function, and the
`like. In particular, the mobile terminal may be one having an
`email function or a function of getting access to the Internet
`(e.g., an i-scheme (service name) terminal provided by NTT
`DoCoMo,Inc. (company name), and the like).
`
`[0036] FIG. 3 is a block diagram showing a schematic
`configuration of the communication terminal 200 shown in
`FIG. 1. The communication terminal 200 comprises, at
`least, a control section 202, an antenna section 204, a
`network detecting section 206, network communicating
`sections 208, and a terminal
`interface section 210. The
`control section 202 controls the whole communicationter-
`minal 200 in a centralized manner. The antenna section 204
`is connected to the network detecting section 206 and
`network communicating sections 208, and enables wireless
`communications with the wireless interface section 104. The
`network detecting section 206 is connected to the control
`section 202 and antenna section 204, and detects at least one
`network NW100 to which the communication terminal 200
`
`is connected. The network communicating sections 208 are
`connected to the control section 202 and antenna section
`204, and carries out communications with at
`least one
`network NW100 detected by the network detecting section
`206. The terminal interface section 210 is connected to the
`control section 202, and has an interface function with the
`information terminal 300.
`
`[0037] The information terminal 300 shown in FIG.1 is
`connected to the communication terminal 200, and browses
`contents from the contents server group 500 by way of the
`network NW100. Also, the information terminal 300 com-
`prises a structure for detecting an environment (status of
`placement) in which it exists. For example, the information
`terminal 300 can be realized if peripherals such as various
`sensors, printers, displays, and image scanners are con-
`nected to an information processing apparatus including
`known personal computers, workstations, and information
`processing terminals such as PDA while software (including
`programs, data, and the like) for realizing information
`providing services of the mobile communication system
`according to the present invention is installed in the infor-
`mation processing apparatus.
`
`[0038] FIG. 4 is a block diagram showing a schematic
`configuration of the information terminal 300 shown in FIG.
`1. The information terminal 300 comprises, at
`least, a
`control section 302, operation I/O sections 304, an audio I/O
`section 306, a visual I/O section 308, an environment
`detecting section 310, a communication interface 312, local
`devices 314, and a storage section 316. The control section
`302 controls the whole information terminal 300 in a cen-
`tralized manner. The control section 302 has an internal
`memory for storing control programs such as an OS (Oper-
`
`ating system), programs defining various processing proce-
`dures and the like, and required data; and carries out various
`information processing operations according to these pro-
`grams and the like. The operation I/O sections 304 are
`connected to the control section 302, and makesit possible
`to input/output operations. The operation I/O sections 304
`include, for example, various pointing devices such as a
`mouse, keyboards, image scanners, and digitizers operated
`by users. The audio I/O section 306 is connected to the
`control section 302 and includes, for example, microphones,
`speakers, and the like which makeit possible to input/output
`sounds. The visual I/O section 308 is connected to the
`control section 302 and includes, for example, video cam-
`eras, digital cameras, and display apparatus such as displays
`which make it possible to input/output images. The envi-
`ronment detecting section 310 is connected to the control
`section 302 and includes apparatus for detecting an envi-
`ronmentin which the information terminal 300 is placed, for
`example, such as apparatus for detecting an electromagnatic
`wave environment, apparatus for detecting surrounding
`environmentinformation (e.g., inside a train or bus,inside a
`theater, hospital, or the like, etc.) reported from the outside
`by local wireless means such as Bluetooth, apparatus for
`detecting the outside brightness, and temperature detecting
`apparatus. The detecting means for detecting changes in an
`environmentin which the object to be inspected exists may
`also be provided in other apparatus such as the communi-
`cation terminal 200. The communication terminal 312 is
`connected to the control section 302, and has an interface
`function with the terminal
`interface section 210 of the
`communication terminal 200. The local devices 314 are
`connected to the control section 302, and realize respective
`functions. The storage section 316 is storage means such as
`memory devices like RAM and ROM, fixed disk devices
`such as hard disks, flexible disks, and optical disks; and
`stores varioustables, files, databases, and the like for use in
`various processing operations.
`
`[0039] The information communication terminal 250b
`shown in FIG. 1 is an integrated information communica-
`tion terminal equipped with the function of the communi-
`cation terminal 200 and the function of information terminal
`300, and comprises constituents similar to those of the
`communication terminal 200 and information terminal 300.
`
`In the embodiment comprising the foregoing con-
`[0040]
`figuration, the information terminal 300 carries out wireless
`communications with the network NW100 by way of the
`communication terminal 200, so as to receive data concern-
`ing contents provided by the contents server group 500,
`thereby making it possible to browse the contents by utiliz-
`ing a browser incorporated therein. As will be shown in
`detail in the following, if a change in an environmentor the
`like concerning an object is detected here in any apparatus
`of the mobile communication system,at least one apparatus
`relating to the change in environmentorthe like is notified
`of the result of detection. In thus notified apparatus, various
`resources are set up so as to respond to the changed
`environment, and they are automatically switched.
`
`[0041] FIG. 5 is a block diagram showing