EP0881848A2
Expired / Lapsed
EP
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Communication system
Assignee: Casio Computer Co Ltd
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Filing: 1998-05-28
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Granted: —
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Expires: 2018-05-28
Abstract
Abstract When a recall mode is selected as the operation mode of a PHS terminal (PS1), recall data is generated. The recall data specifies the other party (e.g., a PHS terminal (PS2)), a state wherein the other party enters a specific service area, and a message "the other party has arrived at Y station (in the specific service area)" which is to be received from a server (5) or the PHS terminal (PS2) when the other party (PS2) is set in the designated state. The recall data is set in the subaddress of a call set-up message and registered in the server (5) or the PHS terminal (PS2). When the PHS terminal (PS2) enters the service area of a public base station (2c) (designated state), the server (5) or the PHS terminal (PS2) transmits the message to the PHS terminal (PS1) in the recall mode (designated action). The PHS terminal (PS1) displays the transmitted message on a display device (19). The user of the PHS terminal (PS1) can know that the user of the PHS terminal (PS2) has arrived at Y station and that communication with the other party (PS2) is enabled. The state of the other portable information terminal can be recognized without requiring any operation to the other party.
Inventors
- 👤 Takashi Casio Computer Co. Ltd. Jyogataki
- 👤 Shinjiro Casio Computer Co. Ltd. Ishida
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 01:57
CPC Classifications
H; H04; H04W; H04W4/00; H04W4/16
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
109 words
A communication system which performs
communication between terminals (PS1, PS2) connected to
a communication network (1) under the control of a
management station (5) for managing said communication
network, characterized in that each of said terminals (PS1) transmits recall data
to the management station (5) when a recall mode is
selected, the recall data including information to be
notified of a state in which a predetermined other
terminal equals to a predetermined state; and said management station (5) stores the recall data
and informs the terminal (PS1) in which the recall mode
is selected of a state in which the predetermined other
terminal (PS2) equals to the predetermined state.
Claim 2
Dependent Claim
97 words
A communication system which performs
communication between terminals (PS1, PS2) connected to
a communication network (1), characterized in that each of said terminals (PS1) transmits recall data
to a predetermined other terminal when a recall mode is
selected, the recall data including information to be
notified of a state in which the predetermined other
terminal equals to a predetermined state; and the predetermined other terminal (PS2) stores the
recall data and informs the terminal (PS1) in which the
recall mode is selected of a state in which the
predetermined other terminal (PS2) equals to the
predetermined state.
Claim 3
Dependent Claim
37 words
A system according to claim 1 or 2,
characterized in that the state of the other terminal
(PS2) is notified to said terminal (PS1) set in the
recall mode using one of character data and speech data.
Claim 4
Dependent Claim
41 words
A system according to claim 1 or 2,
characterized in that the transmitted calling
information contains a caller number of a call set-up
message, and the predetermined state information
contains data inserted in a subaddress area of the call
set-up message.
Claim 5
Dependent Claim
27 words
A system according to claim 1 or 2,
characterized in that the predetermined state means a
state wherein the other terminal enters or leaves a
predetermined area.
Claim 6
Dependent Claim
90 words
A system according to claim 1 or 2,
characterized in that the predetermined state means a
state wherein the other terminal enters or leaves a
predetermined area as one of a service area of a public
base station set on said communication network to
connect said terminal to said communication network via
a wireless channel and an electromagnetic wave
reachable range of a master unit connected to said
communication network and having a function of
connecting at least a terminal which has been
registered in advance to said communication network.
Claim 7
Dependent Claim
18 words
A system according to claim 1 or 2,
characterized in that the predetermined state is a
predetermined time.
Claim 8
Dependent Claim
82 words
A communication apparatus connected to a
communication network (1), characterized by comprising: storage means (S84) for storing recall data
including other party information sent from said
communication network and state information for
notifying a predetermined state of said communication
apparatus itself; and means (S88, S90, S94) for, when a current state of
said communication apparatus equals the predetermined
state corresponding to the state information stored in
said storage means, notifying the state to the other
party designated by the other party information.
Claim 9
Dependent Claim
31 words
An apparatus according to claim 8,
characterized in that said notification means notifies
the state of said communication apparatus to the other
party using one of character data and speech data.
Claim 10
Dependent Claim
52 words
An apparatus according to claim 8,
characterized in that the other party information sent
through said communication network contains a caller
number of a call set-up message, and the state
information for notifying the state of said
communication apparatus itself contains data inserted
in a subaddress area of the call set-up message.
Claim 11
Dependent Claim
25 words
An apparatus according to claim 8,
characterized in that the predetermined state means a
state wherein said communication apparatus enters or
leaves a predetermined area.
Claim 12
Dependent Claim
81 words
An apparatus according to claim 11,
characterized in that the predetermined area is one of
a service area of a public base station set on said
communication network to connect said communication
apparatus to said communication network via a wireless
channel and an electromagnetic wave reachable range of
a master unit connected to said communication network
and having a function of connecting at least a
communication apparatus which has been registered in
advance to said communication network via a wireless
channel.
Claim 13
Dependent Claim
16 words
An apparatus according to claim 8,
characterized in that the predetermined state is a
predetermined time.
Claim 14
Dependent Claim
35 words
An apparatus according to claim 8,
characterized in that the notification information
further contains a notification method, and said
notification means notifies the state to the other
party on the basis of the notification method.
Claim 15
Independent Claim
118 words
A method for controlling a communication
system comprising terminals connected to a
communication network and a management station for
managing said communication network, characterized by
comprising the following steps of: transmitting (S22, S72) recall data to the
management station or a predetermined other party from
a terminal in which a recall mode is selected, the
recall data including information to be notified of a
state in which the predetermined other terminal equals
to a predetermined state; storing (S34, S84) the recall data by the
management station or the predetermined other party;
and informing (S44, S94) the terminal in which the
recall mode is selected of a state in which the
predetermined other terminal equals to the
predetermined state.
Claim 16
Dependent Claim
54 words
A method according to claim 15, characterized
in that said terminal in which the recall mode is
selected transmits the recall data which includes
identification information for identifying the other
terminal, state designation information for designating
the state of the other terminal to be notified, and
action designation information for designating contents
of notification.
Claim 17
Dependent Claim
25 words
A method according to claim 16, characterized
in that said action designation information includes a
message display for notifying the state of the other
terminal.
Claim 18
Dependent Claim
25 words
A method according to claim 16, characterized
in that said action designation information includes a
speech information for notifying the state of the other
terminal.
Claim 19
Dependent Claim
18 words
A method according to claim 16, characterized
in that said action designation information includes an
alarm tone generation.
Claim 20
Dependent Claim
60 words
A method according to claim 15, characterized
in that said terminal in which the recall mode is
selected transmits the recall data with being inserted
in a subaddress area of a call set-up message which
contains a protocol identifier, a call number, a
message type, a facility, a caller number, a caller
subaddress, a callee number and a callee subaddress.
References Cited (Backward Citations)
No citation records indexed.
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