JP6485484B2 - Terminal device, management device, program - Google Patents

Description

The present invention relates to a notification technique, in particular the terminal device to inform the user authentication status for a plurality of terminal devices in the group, the management device, about the program.

In the mobile phone, terminal setting information and personal information are changed and set according to the use environment. For example, in a mobile phone lent for business purposes, the setting is changed depending on whether it is for business use or private use. In addition, mobile telephones that are not frequently used in the home are shared and used by a plurality of people (for example, Patent Document 1).

JP 2004-350226 A

In the commercial wireless system, a group is formed by a plurality of terminal devices, and the base station device assigns a channel to the group. In such a commercial wireless system,
Calls within a group are mainly used, resulting in a one-to-many call form. Generally, a plurality of terminal devices of a commercial wireless system are arranged in an office, and when a user goes to the site,
Carry any one of the terminal devices. Therefore, the authentication operation is not requested in the plurality of terminal devices and the same setting is made so that any user can use the same in any terminal device. Under such circumstances, authentication for a user who is using the terminal device is required in order to improve the safety of communication. On the other hand, in the usage pattern as described above, if authentication is requested for all users, the convenience for the users may be deteriorated.

The present invention has been made in view of such circumstances, and an object of the present invention is to provide a technique for allowing a user to grasp the authentication status in a group when a call in the group is made.

In order to solve the above-described problem, a terminal device according to an aspect of the present invention is a one-to-many method in which a voice signal transmitted from one terminal device belonging to a group is received by a plurality of terminal devices belonging to the same group. Information relating to an authentication status indicating whether or not user authentication for authenticating a user who uses the terminal device is performed in another terminal device included in the group, which is a terminal device used in a communication system that executes a group call. Is a screen showing the authentication status of each of a plurality of terminal devices in a group that can be a call partner based on the information received at the receiving unit, the name of the terminal device, Information indicating whether or not user authentication is performed at the terminal device, and the user who uses the terminal device when the user authentication of the terminal device is performed. It includes a display unit that displays the contact list screen associated with a seat of the name, the.

Another aspect of the present invention is a management device. This device is a management device used in a communication system for executing a one-to-many group call in which a voice signal transmitted from one terminal device belonging to a group is received by a plurality of terminal devices belonging to the same group. A generation unit that generates information about an authentication status indicating whether or not user authentication for authenticating a user who uses a terminal device in the group is performed, and the information generated in the generation unit is transmitted to the terminal device in the group The information generated in the generation unit is information indicating an authentication status of each of a plurality of terminal devices in the group that can be a call partner of the terminal device that transmits the information. , The name of the terminal device, information indicating whether or not the user authentication is performed in the terminal device, and the user authentication of the terminal device. Is information for displaying the contact list screen associating the user name to use the terminal device to the terminal device, and wherein the.

Yet another embodiment of the present invention is a program. This program is executed by a terminal device in a communication system that executes a one-to-many group call in which a voice signal transmitted from one terminal device belonging to a group is received by a plurality of terminal devices belonging to the same group. A reception step of receiving information on an authentication status indicating whether or not user authentication for authenticating a user who uses the terminal device in another terminal device included in the group from the management device; and the reception It is a screen showing the authentication status of each of a plurality of terminal devices in a group that can be a call partner based on the information received in the step, and shows the name of the terminal device and whether or not user authentication is performed on the terminal device. And the name of the user who uses the terminal device when the user authentication of the terminal device is performed. And a display step of displaying the contact list screen attached, is allowed to run to the terminal device.

Yet another embodiment of the present invention is a program. This program allows a computer in a communication system that executes a one-to-many group call in which a voice signal transmitted from one terminal device belonging to a group is received by a plurality of terminal devices belonging to the same group, A generation step of generating information on an authentication status indicating whether or not user authentication for authenticating a user who uses the terminal device is performed, and a transmission step of transmitting the information generated in the generation step to the terminal devices in the group; The information generated in the generation step indicates the authentication status of each of a plurality of terminal devices in the group that can be a call partner of the terminal device to which the information is transmitted in the transmission step. Information, the name of the terminal device and user authentication in the terminal device And information indicating dolphin not, if the user authentication of the terminal device is the information for displaying the contact list screen associated with the name of the user who uses the terminal device to the terminal device, it It is characterized by.

It should be noted that any combination of the above-described constituent elements and a conversion of the expression of the present invention between a method, an apparatus, a system, a recording medium, a computer program, etc. are also effective as an aspect of the present invention.

ADVANTAGE OF THE INVENTION According to this invention, when the telephone call in a group is made, the authentication condition in a group can be grasped | ascertained.

It is a figure which shows the structure of the business use radio | wireless system which concerns on Example 1 of this invention. It is a sequence diagram which shows the communication procedure by the business use radio system of FIG. It is a figure which shows the structure of the management apparatus of FIG. 4A and 4B are diagrams showing the data structure of the database stored in the storage unit of FIG. It is a figure which shows an example of the data structure output from the communication part of FIG. It is a figure which shows the structure of the terminal device of FIG. FIGS. 7A and 7B are diagrams showing screens displayed on the display unit of FIG. It is a flowchart which shows the display procedure by the terminal device of FIG. It is a flowchart which shows the request | requirement procedure of the authentication condition by the terminal device of FIG. It is a flowchart which shows another request | requirement procedure of the authentication condition by the terminal device of FIG. 4 is a flowchart illustrating a procedure for notifying an authentication status by the management apparatus of FIG. 3. It is a flowchart which shows another notification procedure of the authentication condition by the management apparatus of FIG. It is a flowchart which shows the deletion procedure of the authentication result by the management apparatus of FIG. It is a figure which shows the data structure of the data output from the management apparatus which concerns on Example 2 of this invention. It is a figure which shows the screen displayed in the display part of the terminal device which concerns on Example 2 of this invention. It is a flowchart which shows the reception procedure by the terminal device which concerns on Example 3 of this invention.

Example 1
Before describing the present invention specifically, an outline will be given first. Embodiment 1 of the present invention relates to a business radio system including a plurality of base station devices connected to a network, a plurality of terminal devices connected to each base station device, and a management device connected to the network. In a commercial wireless system, a group is formed by a plurality of terminal devices. The base station apparatus assigns an uplink channel and a downlink channel to the group. Under such circumstances, one terminal device in the group (hereinafter referred to as “transmitting device”) transmits a signal on the uplink channel, and another terminal device in the group (hereinafter referred to as “receiving device”). Receives a signal on the downlink channel. Note that a base station apparatus different from the base station apparatus to which the transmitting apparatus is connected also assigns a downlink channel to the group, so that a receiving apparatus connected to the base station apparatus can also receive signals. Further, the same processing is performed for another group, but communication between different groups is not performed.

As described above, in order to ensure communication safety, user authentication is required when using the terminal device. On the other hand, considering user convenience, it is desirable that authentication is not performed.
In order to satisfy these requirements, in the business wireless system according to the first embodiment, user authentication is performed when some users use the terminal device, and users are used when the remaining users use the terminal device. Authentication is not performed. Furthermore, those results are shared among a plurality of terminal devices in the group. The user using the terminal device performs communication after confirming whether or not the user authentication is performed on the other terminal devices included in the group. For example, depending on whether user authentication is performed in all terminal devices (other terminal devices), user authentication is performed in some terminal devices, or user authentication is not performed in any terminal device Can select communication contents appropriately.

FIG. 1 shows a configuration of a business wireless system 100 according to the first embodiment of the present invention. The commercial radio system 100 is generically referred to as a first base station apparatus 10a, a second base station apparatus 10b, a third base station apparatus 10c, a fourth base station apparatus 10d, and a terminal apparatus 12, which are collectively referred to as a base station apparatus 10. First
It includes a terminal device 12a, a second terminal device 12b, a third terminal device 12c, a fourth terminal device 12d, a network 14, and a management device 20. The first base station apparatus 10a forms the first area 16a, the second base station apparatus 10b forms the second area 16b, the third base station apparatus 10c forms the third area 16c, and the fourth The base station device 10d forms a fourth area 16d. Here, the first area 16a, the second area 16b, the third area 16c, and the fourth area 16d are collectively referred to as an area 16. The number of base station devices 10 and the number of terminal devices 12 are not limited to “4”.

The first base station apparatus 10 a to the fourth base station apparatus 10 d are connected via the network 14. The base station apparatus 10 can set a plurality of channels and assigns each channel to a group. A known technique may be used for the channel. Here, as an example, FD
MA (Frequency Division Multiple Access) / F
A plurality of channels are multiplexed by DD (Frequency Division Duplex). For example, the first base station apparatus 10a uses Ch1,
Ch3 to Ch6 are set, and Ch2 and Ch7 to Ch10 are set as uplink channels. Here, Ch1 is used for the downlink control channel, and Ch2 is used for the uplink control channel. Further, Ch3 and Ch7 are assigned to the same group as one combination. The same applies to Ch4 to Ch6 and Ch8 to Ch10. Other base station devices 10 also
Similarly, the channels are set, but the number of channels that can be set may be different for each base station apparatus 10. Further, Ch1 and Ch2 are assumed to be used for the downlink control channel and the uplink control channel in common across all base station apparatuses 10.

The terminal device 12 is a wireless terminal that can communicate with another terminal device 12 via the base station device 10. Here, it is assumed that a call is made as communication. Data communication may be performed. When the terminal device 12 enters the area 16, the terminal device 12 requests location registration to the base station device 10 that forms the area 16. At that time, registration of the group to be used is also required.
These requests are transmitted by being included in the uplink control channel of Ch2. The uplink control channel is transmitted by random access. In response to the request, the base station device 10 registers the terminal device 12 in units of groups.

When a call is generated in one terminal device 12, the terminal device 12 transmits an uplink control channel including a call request in Ch2. The base station apparatus 10 that has received the uplink control channel uses the terminal apparatus 12 as the transmission apparatus described above, and allocates a channel to the group including the transmission apparatus. The channel here is a generic term for a downlink channel and an uplink channel. The base station apparatus 10 requests the other base station apparatus 10 to allocate a channel to the group via the network 14. The other base station apparatus 10 confirms whether the group is registered in response to the request. If registered, another base station device 1
0 assigns a channel to the group.

The base station apparatus 10 and the other base station apparatus 10 transmit a downlink control channel including information on the allocated channel to the terminal apparatus 12. The remaining terminal devices 12 included in the group
The receiving device and the transmitting device recognize the assigned channel by receiving the downlink control channel. The transmission apparatus transmits a signal to the base station apparatus 10 using the allocated uplink channel. The signal includes a digitized audio signal. When the receiving apparatus is included in the group including the transmitting apparatus, the base station apparatus 10 transmits a signal to the receiving apparatus using the allocated downlink channel. In addition, the base station apparatus 10 transmits the received signal to another base station apparatus 10. The other base station apparatus 10 transmits a signal to the receiving apparatus using the allocated downlink channel. The receiving device reproduces an audio signal based on the received signal and outputs audio from the speaker.

In this way, a plurality of groups including a plurality of terminal devices 12 are formed. Further, each of the plurality of base station apparatuses 10 assigns a channel in units of groups. As a result, communication is performed from one terminal device 12 included in the group to which the channel is assigned to the remaining terminal devices 12 included in the group.

Note that the transmission device and the reception device may be interchanged among the plurality of terminal devices 12 included in the group. When a signal to be transmitted is generated in the terminal device 12 operating as the receiving device, the terminal device 12 switches to the transmitting device by transmitting the uplink control channel including the transmission request as described above. In addition, the terminal device 1 operating as a transmitting device
2 switches to the receiving device when the signal transmission is completed. Such a group call uses one channel of each base station apparatus 10 when one call occurs. Therefore, when the terminal devices 12 included in the same group are registered in a wide range of base station devices 10, channels corresponding to the number of base station devices 10 are used in one call. The above processing is performed for each group.

FIG. 1 shows a situation where a group 1 call is made. The second terminal device 12b corresponds to a transmission device. The second terminal apparatus 12b transmits a signal using Ch8 of the second base station apparatus 10b. Group 1 is registered in the first base station apparatus 10a and the third base station apparatus 10c. Therefore, the first terminal apparatus 12a receives a signal using Ch3 of the first base station apparatus 10a, and the third terminal apparatus 12c receives a signal using Ch3 of the third base station apparatus 10c. On the other hand, since group 1 is not registered in the fourth base station apparatus 10d, a signal from the second terminal apparatus 12b is not output to the fourth base station apparatus 10d.

For example, when the group 1 is registered only in the second base station apparatus 10b, when a call of the group 1 occurs, the transmission apparatus transmits a signal at Ch8 of the second base station apparatus 10b, and the second base station apparatus The receiving device receives the signal at Ch3 of 10b. Therefore, one set of channels of only one base station apparatus 10 is used. When group 1 is registered in two base station apparatuses 10, when a group 1 call occurs, one set of channels is used in each of the two base station apparatuses 10. Therefore, two sets of channels are used. This corresponds to the consumption of the same number of channels as a one-to-one call such as a mobile phone system. Furthermore, when group 1 is registered in three or more base station apparatuses 10, three or more sets of channels are consumed. When all the channels of the third base station apparatus 10c are used for other groups, the third base station apparatus 10c does not make a group 1 call. This corresponds to a miss call or busy state.

Prior to such communication processing, the terminal device 12 may execute authentication processing with the base station device 10. Note that the authentication process is not performed in the base station apparatus 10, and the network 1
4 may be performed in the authentication apparatus connected to the terminal 4. Since a known technique may be used for the authentication process, the description thereof is omitted here. The terminal device 12 has an authentication result, for example, authenticated,
The fact that the authentication is not performed is transmitted to the base station apparatus 10 through the uplink control channel. Management device 2
0 accepts the authentication result from the base station apparatus 10. In response to the information transmitted by the terminal device 12, the management device 20 transmits information regarding the authentication status of the other terminal devices 12 included in the group. The base station apparatus 10 transmits information related to the authentication status on the downlink control channel.
The terminal device 12 receives the information regarding the authentication status and displays the information regarding the authentication status. As a result, the user who uses the terminal device 12 is notified to other terminal devices 1 included in the group.
2 authentication status can be recognized.

FIG. 2 is a sequence diagram illustrating a communication procedure performed by the business use radio system 100. The second terminal apparatus 12b transmits a call request using the uplink control channel (S110). The second base station apparatus 10b notifies the first base station apparatus 10a of a transmission request (S112). The second base station apparatus 10b and the first base station apparatus 10a allocate channels to group 1 (S114,
S116). The second base station apparatus 10b transmits the allocation result on the downlink control channel (S1
18). The second terminal apparatus 12b transmits the uplink data to the second base station apparatus 10b (S12
0). The second base station apparatus 10b transmits data to the first base station apparatus 10a (S122).
. The first base station apparatus 10a transmits the allocation result on the downlink control channel (S124). The first base station apparatus 10a transmits downlink data to the first terminal apparatus 12a (S126).

FIG. 3 shows the configuration of the management apparatus 20. The management device 20 includes a communication unit 30, a processing unit 32, and a generation unit 34. The communication unit 30 includes a transmission unit 60 and a reception unit 62.

The receiving unit 62 is connected to the network 14 and receives authentication result information from the terminal device 12 via the base station device 10. The processing unit 32 receives authentication result information from the receiving unit 62 and stores it in the database. The memory | storage part 36 memorize | stores the information of the authentication result of the some terminal device 12 contained in each group as a database. 4 (a)-(b)
These show the data structure of the database memorize | stored in the memory | storage part 36. FIG. In the example shown in FIG. 4A, “group name”, “terminal ID”, and “authentication result” are included. The group name (group number) indicates identification information of the group including the terminal device 12, and the “terminal device ID” is “U”.
It is also called “nit ID” and is a number that uniquely identifies the terminal device. “Completed” in the authentication result corresponds to “authenticated”, and “uncompleted” in the authentication result corresponds to no authentication. FIG.
As in the example shown in b), a “user name” may be further stored. As will be described later, when the user name is included in the authentication result, “user name” is recorded for the terminal device whose authentication result is “completed”, and the user name of the terminal device whose authentication result is “unknown” is blank. And Returning to FIG.

The generation unit 34 receives a database stored in the storage unit 36 via the processing unit 32. The generation unit 34 extracts information related to the group to be processed from the database. Here, the group to be processed corresponds to a group including the terminal device 12 that has transmitted the authentication result. The production | generation part 34 produces | generates the information regarding an authentication condition by combining the information of the authentication result of the terminal device 12 of the said group. FIG. 5 is a diagram illustrating an example of a data structure output from the communication unit 30. This is an example of transmitting information related to the authentication status generated by the generation unit 34 using a message called “Broadcast Identifyed Data”. This “Broadcast Identifier”
“ed Data” is a message broadcast on the downlink control channel from the base station apparatus 10.

Here, “ID1” is a terminal device ID (Uni) for identifying the first terminal device 12.
t ID), for example, consisting of 24 bits. The “ID1 authentication result” is an authentication result for the user of the first terminal device 12 and is composed of 1 bit. For example, it is “1” if authenticated, and “0” if not authenticated. “ID2”, “ID
“Authentication result 2” indicates the terminal device ID and authentication result of the second terminal device 12, and “ID1”.
, “ID1 authentication result”. In this way, Broadcast Ide
The ntifitated data is 50 bits, and 64 bits can be transmitted at a time on the downlink control channel. Therefore, the authentication status for two users is transmitted at a time. As described above, the generation unit 34 generates information related to the authentication status of the terminal devices 12 in the group including the terminal devices 12 based on the authentication result information received by the reception unit 56. Note that FIG.
As shown in (b), when the authenticated user name is stored in the database of the storage unit 36, the “terminal device ID”, “authentication result”, and “user name” are associated with each other. Data is output from the communication unit 30. Returning to FIG.

The transmission unit 60 transmits information on the authentication status generated by the generation unit 34 to the base station apparatus 10 via the network 14. As described above, the base station apparatus 10 transmits information related to the authentication status to the terminal apparatus 12 through the downlink control channel.

In terms of hardware, this configuration is arbitrary computer CPU, memory, other L
Although it can be realized by SI and is realized by a program loaded in a memory or the like in terms of software, here, functional blocks realized by their cooperation are illustrated. Accordingly, those skilled in the art will understand that these functional blocks can be realized in various forms by hardware only, software only, or a combination thereof.

FIG. 6 shows the configuration of the terminal device 12. The terminal device 12 includes a communication unit 40, a processing unit 42, a microphone 44, a speaker 46, an operation unit 48, a display unit 50, and a storage unit 52. The communication unit 40 includes a transmission unit 54 and a reception unit 56.

The microphone 44 receives a voice from the user during a call and converts the voice into a voice signal. The microphone 44 outputs an audio signal to the processing unit 42. The speaker 46 receives the audio signal from the processing unit 42 during a call and outputs the audio signal as audio. Speaker 46
May output a warning sound or the like. The operation unit 48 includes buttons, a touch panel, and the like, and receives input from the user. The operation unit 48 receives the input received from the processing unit 42.
Output to. The display unit 50 receives images and messages from the processing unit 42 and displays them. When the screen is a touch panel, the display unit 50 is configured integrally with the operation unit 48. Note that the display device 50 is not included in the terminal device 12 and the terminal device 12 includes a display device (not shown).
Can be connected to display information on an external display device.

The processing unit 42 cooperates with the communication unit 40 to provide a base station device 10 or an authentication device (not shown).
Alternatively, an authentication process is executed with the management device 20. Although not shown in FIG. 3, an authentication processing unit may be provided in the management apparatus 20 and the management apparatus 20 may perform authentication processing. A known technique, for example, a password or a password may be used for the authentication process. Master data (password or the like) necessary for the authentication process may be stored outside the terminal device 12 (for example, the base station device 10, the authentication device, the management device 20, etc.) or stored in the terminal device 12. You may keep it. The method for storing the master data for the authentication process outside the terminal device 12 is preferable because it is possible to centrally manage the master data. However, this method is basically preferable, but password change and user addition / deletion are particularly frequent. Suitable when it occurs. The method of storing the master data in the terminal device 12 can simplify the system configuration, and may be suitable for a system with a small update frequency of the master data or a small system. As a user authentication method,
The following method can be used.

The first user authentication method is a method for authenticating that a user is a member of a group. For example, it is a method in which passwords (specific character strings, numeric strings, etc.) are notified in advance and input only to members of the group. This method is convenient because it is only necessary to set one password per group, but it cannot authenticate individual users. If you want one terminal device to support multiple groups at the same time,
What is necessary is just to input the some password corresponding to those groups.

The second authentication method is a method of setting a different user name (user ID) and password for each user. At the time of authentication, the user inputs his user name and password from the operation unit 48. This method can authenticate individual users. Note that different passwords may be assigned to each user, and after storing master data in which a user name and a password are associated, the user may be allowed to input only the password. In this way, the input of the user name can be omitted, so that the operation burden on the user can be reduced. The device that stores the master data (device that performs password verification) determines whether there is a password that matches the password entered by the user in the master data password. Authenticate as input by the corresponding user.

Note that the authentication process is started, for example, when the terminal device 12 is turned on while pressing any key of the operation unit 48. Further, the authentication process may be started by being set before the terminal device 12 is powered off. Furthermore, the authentication process may be set in advance by application software for setting a wireless device so that the authentication process is started when the terminal device 12 is turned on. During the authentication process, the communication unit 40 uses an uplink control channel and a downlink control channel. As described above, the authentication process is performed prior to communication.

When the master data for authentication processing is stored outside the terminal device 12, the terminal device 12, the terminal device ID, the password input by the user, the user name (if input), etc. from the terminal device 12 to the base station device 10 Information is transmitted via the transmitter 54. It is desirable to encrypt and transmit character information such as a password. When the base station apparatus 10 stores master data for authentication processing, the received password and user name are checked against the master data to determine whether authentication is possible. Then, the management apparatus 20 is notified of information on the authentication result. The authentication result information includes the terminal device ID and whether or not authentication is possible, but may further include a user name. The processing unit 32 of the management device 20 receives the authentication result from the base station device 10 via the reception unit 62 and stores it in the database of the storage unit 36. When the user name is not included in the authentication result, the storage unit 36 stores it in the format shown in FIG. 4A. When the user name is included in the authentication result, the storage unit 36 stores it in the format shown in FIG. To do. Similarly, when an apparatus other than the terminal apparatus 12 and the base station apparatus 10 stores authentication master data, the authentication result may be notified from the apparatus to the management apparatus 20.

Next, processing when the terminal device 12 stores master data for authentication processing will be described. The processing unit 42 collates the password and user name (if input) entered by the user with the master data, and determines whether authentication is possible. Then, the processing unit 42 transmits information on the authentication result to the base station apparatus 10 in advance of communication in cooperation with the transmission unit 54. The information of the authentication result includes a terminal device ID, whether authentication is possible, and may further include a user name.
Here, as an example of a data structure for transmitting authentication result information, Ran of the uplink control channel
One bit of the dom Access Request is used for transmitting the authentication result. The bit is set to “1” if authenticated, and is set to “0” if not authenticated. This data structure can be used when the user name is not included in the authentication result information. Further, the base station apparatus 10 outputs authentication result information to the management apparatus 20.

Furthermore, when the processing unit 42 exchanges a message for location registration with the base station device 10 in cooperation with the communication unit 40, it is possible to perform normal location registration by devising how to use the terminal device ID. It is also possible to transmit the authentication result using a message. For example, the terminal device ID is used separately for an authenticated ID and an unauthenticated ID. Specifically,
The terminal device ID: 0 to 5000 is assigned to the unauthenticated ID, the terminal device ID: 5001 or more is assigned to the authenticated ID, and the unapproved ID and authentication I are assigned to each terminal device 12.
Two terminal device IDs of D are set and stored in the storage unit 52. For example, when the unapproved ID of a certain first terminal device 12 a is “1” and the approval ID is “5001”, the processing unit 42 transmits a normal location registration message from the transmission unit 54. First terminal device 1
If 2a has been authenticated, “5001” is selected as the ID, and if not authenticated, “1” is selected as the ID, and is set in the location registration message. The base station apparatus 10 that has received the location registration message can determine whether or not the terminal apparatus 12 has been authenticated by checking whether or not the ID included therein is “5001” or more. By such a method, the authentication result of the terminal device 12 can be transmitted to the base station device 10 using a normal location registration message without adding a new communication protocol. Moreover, if the joining process to a group is executable, the business radio system 100 may notify the information of the terminal device 12 newly joined to the group only to the corresponding group. As described above, when authenticating a user, information such as a password (authentication request) for performing authentication processing in another device, and information (authentication result) as a result of performing authentication processing in the terminal device 12 Any information is transmitted from the terminal device 12. The information transmitted here is referred to as individual information or individual authentication information. The individual information and individual authentication information transmitted from the terminal device 12 are referred to as information related to authentication.

In response to the authentication result information transmitted by the transmission unit 54, the reception unit 56 receives information related to the authentication status of the other terminal devices 12 included in the group from the base station device 10. As described above, this information is generated in the management device 20 and transmitted through the downlink control channel. Note that the management device 20 basically generates information related to the authentication status regarding all the terminal devices 12 included in the group. In this way, the same data (information regarding the authentication status) can be transmitted to all the terminal devices 12 at the same time, so that efficient communication can be performed. However, in some cases, a certain terminal device 12 (for example, the first terminal device 12
From the information regarding the authentication status transmitted to a), the terminal device (first terminal device 12a)
The authentication status information may be excluded.

The reception of the information regarding the authentication status may be performed at different timings. For example, the processing unit 42 transmits a transmission request for information related to the authentication status to the base station apparatus 10 via the transmission unit 54. This is done when the authentication status acquisition key in the operation unit 48 is depressed by the user or when a periodic timing comes by the timer. At that time, an uplink control channel is used. The transmission request is output from the base station device 10 to the management device 20. Thereafter, in response to the transmission request, the receiving unit 56 receives information related to the authentication status from the base station apparatus 10. The receiving unit 56 outputs information related to the authentication status to the processing unit 42. Even when the registration process for the other terminal device 12 is successful, the receiving unit 56 receives the newly registered subscription information of the other terminal device 12 through the downlink control channel.

The processing unit 42 receives information related to the authentication status from the receiving unit 56. The processing unit 42
A screen for notifying other terminal devices 12 in the group is generated based on the information on the authentication status.

The display unit 50 displays the display data (screen data) generated in the processing unit 42 on the screen. Therefore, it can be said that the display unit 50 displays the authentication status within the group based on the information received by the receiving unit 56. FIG. 7A is an example of a screen displayed on the display unit 50. This is a contact list screen, which is an example of a list of names of other terminal devices 12 (terminal device names). The storage unit 52 of the terminal device 12 stores correspondence information between the terminal device ID and the terminal device name. This correspondence information is set and registered in advance using application software for setting wireless devices. For example, as shown in FIG.
When the authentication status information indicating that “00” has been authenticated is received, and the terminal device name “TRUCK 824” corresponds to the terminal device ID “6700” in the above correspondence information, “TRUC
A terminal device name “K 824” and a key icon indicating that authentication has been completed are displayed. When the terminal device ID “1234” is not authenticated, the terminal device ID “12” is used in the above correspondence information.
If the terminal device name “TRUCK 825” corresponds to “34”, “TRUCK 825”
Does not display a lock icon. Since this list screen shows terminal devices that can be callers, the terminal device (self terminal) that performs screen display is excluded from the information related to the authentication status and displayed. If the above correspondence information does not exist, the terminal device ID may be displayed on the screen instead of the terminal device name.

Further, as “Authorized”, the number of other terminal devices 12 included in the group (“20” in the example of this figure) and the terminal devices that have been authenticated among the other terminal devices 12 included in the group A ratio ("3/20" in the example of this figure) to the number of 12 ("3" in the example of this figure) is also displayed. This ratio corresponds to the authenticated ratio with respect to the whole. Moreover, you may display the ratio of the number of the terminal devices 12 of the whole group including an own terminal, and the number of the terminal devices 12 with which the whole group was authenticated. For example, when the number of terminal devices in the entire group is “21”, the own terminal is authenticated, and three other terminal devices are authenticated, a display such as “4/21” may be performed. .

FIG. 7B is a diagram illustrating another example of the list screen. In addition to the information displayed on the screen shown in FIG. 7A, the user name is displayed. In this case, the user name needs to be included in the information related to the authentication status. In the example of this figure, “Tom”, “Alice”, “Bob”
Is a user name. For example, it can be seen that a user named “Tom” is using a terminal device named “TRUCK 824”. Thus, since it is known who is using which terminal device, the convenience for the user is further improved.

In addition to the contact list screen, a group member list screen may be generated by the processing unit 42. In the group member list screen displayed by the display unit 50, the authentication status of users in the group is also indicated by icons or characters ( It is displayed in the ratio of authenticated). Further, the display unit 50 may display the authentication status of the other party / group user during a call.

When the terminal device 12 is used by a plurality of users, it is desirable to prepare the setting of the terminal device 12 for each user in order to improve user operability. The processing unit 42 executes settings corresponding to the authenticated user when the authentication process is completed. Here, the setting data unique to the user is referred to as “dedicated data”. For example, the storage unit 52 stores a plurality of dedicated data, and the processing unit 42 selects one dedicated data from the storage unit 52 according to the authenticated user name.

Further, instead of the storage unit 52, the base station apparatus 10 may store a plurality of dedicated data.
At that time, the processing unit 42 requests the base station apparatus 10 to transmit dedicated data via the communication unit 40. As a response to this, the communication unit 40 receives dedicated data from the base station apparatus 10, and the processing unit 42 sets dedicated data. Instead of the base station device 10, a server connected to the network 14 may be used. Furthermore, at least one dedicated data may be stored in the charger for charging the terminal device 12. When the terminal device 12 is connected to the charger, the processing unit 42 may receive dedicated data from the charging terminal. The methods described so far may be arbitrarily combined.

Dedicated data includes, for example, Unit ID, valid / invalid state of function, Unit ID L
ist, Group ID List. The dedicated data may be a setting changed from basic data during operation. Furthermore, the dedicated data is backed up when the power is turned off, when the battery is connected to the charger, when the dedicated operation is performed on the terminal device 12, or when the user switching mode start key is operated during operation. May be.

The operation of the business wireless system 100 configured as above will be described. FIG. 8 shows the terminal device 12
It is a flowchart which shows the display procedure by. The power is turned on (S10). If the authentication mode is selected (Y in S12), an authentication password is input by the operation unit 48 (S14).
. If the authentication is successful by the processing unit 42 and the communication unit 40 (Y in S16), the processing unit 42 sets user-specific data (S18). If it is not in the authentication mode (N in S12) or if the authentication is not successful (N in S16), steps 14 to 18 are skipped. The storage unit 52 stores the authentication result (S20). The processing unit 42 and the transmission unit 54 transmit information including the authentication result (S22). The receiving unit 56 and the processing unit 42 receive information including the authentication status (S24). The display unit 50 displays the authentication status (S26). Step 24
Is not necessarily executed in correspondence with step 22, and may be executed at a necessary timing.

FIG. 9 is a flowchart showing a procedure for requesting the authentication status by the terminal device 12. The processing unit 42 and the transmission unit 54 request transmission of information including the authentication status (S30). Receiver 56
The processing unit 42 receives information including the authentication status from the management apparatus 20 via the base station apparatus 10 (S32). The processing unit 42 starts an information acquisition timer (S34). The processing unit 42 increments the timer (S36). If not timed out (N in S38), the process returns to step 36. On the other hand, if a time-out occurs (Y in S38), the process returns to step 30. As a result of such processing, the terminal device 12 receives information including the authentication status at a constant cycle, so that the user can always grasp the latest authentication status.

FIG. 10 is a flowchart illustrating another procedure for requesting the authentication status by the terminal device 12.
Information is acquired by the user via the operation unit 48 (S40). Processing unit 42,
The transmission unit 54 requests transmission of information including the authentication status (S42). The receiving unit 56 and the processing unit 42 receive information including the authentication status from the management device 20 via the base station device 10 (
S44).

FIG. 11 is a flowchart illustrating the authentication status notification procedure by the management apparatus 20. The receiving unit 62 and the processing unit 32 receive a transmission request for information including the authentication status (S50). The generation unit 34, the processing unit 32, and the transmission unit 60 transmit information including the authentication status (S52).

FIG. 12 is a flowchart showing another procedure for notifying the authentication status by the management apparatus 20.
The processing unit 32 activates a transmission control timer (a timer for transmitting information including an authentication status at a constant period) (S60). The processing unit 32 increments the timer (S62).
). If not timed out (N in S64), the process returns to step 62. If time-out occurs (Y in S64), the generation unit 34, the processing unit 32, and the transmission unit 60 transmit information including the authentication status (S66).

FIG. 13 is a flowchart illustrating a procedure for deleting an authentication result by the management apparatus 20. When the terminal apparatus 12 is turned off, the base station apparatus 1 is transmitted from the terminal apparatus 12 (first terminal apparatus 12a).
0, a delete request message is transmitted to the management apparatus 20. Receiving unit 62, processing unit 32
Receives a request to delete the authentication result (S70). The deletion request message includes a terminal device I.
Since D is included, the terminal device ID (first terminal device 1) is obtained from the current authentication status information.
2a) is deleted, and new authentication status information is created. Generator 34, processor 32,
The transmission unit 60 transmits information including the new authentication status to each terminal device 12 (S72).
).

According to the present embodiment, since the authentication result information is transmitted and the information related to the authentication status of the terminal devices included in the group is received, the authentication status in the group can be grasped when a call in the group is made. . Further, since the authentication status in the group is displayed, the user can easily grasp the authentication status and can make a call (topic selection etc.) according to the authentication status. In addition, since the ratio between the number of other terminal devices included in the group and the number of authenticated terminal devices among the other terminal devices included in the group is displayed, the authentication status can be grasped more easily. it can. Moreover, since the information regarding the authentication status of the terminal device of the group including the terminal device is generated and transmitted based on the authentication result information, the authentication status can be notified. In addition, since information of authentication results of individual terminal devices is combined, information regarding the authentication status can be notified in detail.

In addition, since the users participating in the communication are clarified, the content of the call can be changed according to the user. In addition, since dedicated settings for each user are made for one terminal device, one terminal device can be shared by a plurality of users. Further, since one terminal device is shared by a plurality of users, the number of terminal devices can be reduced. Further, since the number of terminal devices is reduced, the operation cost can be reduced. In addition, user authentication is performed when the terminal device is used, and the result is shared by users on the system, so that communication safety can be ensured.

Further, since the setting information of the terminal device is switched by this user authentication, any terminal device can be operated as its own setting. In addition, since any terminal device is operated as its own setting, it is possible to improve convenience in an operating environment in which a large number of terminal devices are mixed. Also, by inputting a password (or personal identification number) to the terminal device, the terminal device operates as its own terminal device and can notify other users on the system that it has logged in.
(Example 2)
Next, Example 2 will be described. As in the first embodiment, the second embodiment relates to a business wireless system including a management device. In the first embodiment, information on whether or not each terminal device included in the group is authenticated is transmitted to each terminal device. The second embodiment aims to reduce the data amount of information related to the authentication status. The monitoring apparatus according to the second embodiment transmits a combination of the number of authenticated terminal apparatuses and the number of unauthenticated terminal apparatuses among the terminal apparatuses of the group to the terminal apparatus as information related to the authentication status. In the terminal device, as in the first embodiment, the ratio between the number of terminal devices included in the group and the number of authenticated terminal devices among the terminal devices 12 included in the group is displayed. Further, when all the terminal devices included in the group have been authenticated, a display for notifying the user of this is also made. The business wireless system 100, the management device 20, and the terminal device 12 according to the second embodiment are the same type as those in FIGS. Here, it demonstrates centering on the difference with Example 1. FIG.

In the management device 20 of FIG. 3, the storage unit 36 stores the authentication result information of the plurality of terminal devices 12 included in each group as in FIGS. 4A to 4B as in the first embodiment. To do. The generation unit 34 receives a database stored in the generation unit 34 via the processing unit 32. The generation unit 34 extracts information related to the group to be processed from the database. The generation unit 34 generates information including the results of the statistical processing by performing statistical processing on the authentication result information of the other terminal devices 12 in the group in which the terminal device 12 is included.

As statistical processing, the generation unit 34 calculates the number of terminal devices 12 that have been authenticated in the group, and calculates the number of terminal devices 12 that have not been authenticated. The generation unit 34 generates information related to the authentication status by combining the number of authenticated terminal devices 12 and the number of unauthenticated terminal devices 12. FIG. 14 is a diagram illustrating a data structure of data output from the management apparatus 20 according to the second embodiment of the present invention. As illustrated, “the number of authenticated users” and “the number of unauthenticated users” are included. "Authenticated user" is an authenticated terminal device 12
The “number of unauthenticated users” corresponds to the number of terminal devices 12 that have not been authenticated.

The receiving unit 56 in FIG. 6 receives from the base station device 10 information related to the authentication status of other terminal devices 12 included in the group. The processing unit 42 receives information related to the authentication status from the receiving unit 56. The processing unit 42 determines the number of other terminal devices 12 included in the group and the number of terminal devices 12 that have been authenticated among the other terminal devices 12 included in the group based on the information on the authentication status. And calculate the ratio. The “number of authenticated users” output from the management apparatus 20 is “4”.
”And the case where“ the number of unauthenticated users ”is“ 17 ”will be specifically described. First, the terminal device 12 that has received the information related to the authentication status includes a value obtained by subtracting “1” corresponding to the own terminal from the total value of the two numerical values, that is, “4 + 17−1 = 20”. The number of terminal devices 12 of Next, when the own terminal has been authenticated, the value obtained by subtracting “1” from “the number of authenticated users” is the number of authenticated terminal devices 12 among the other terminal devices 12 included in the group. And In the above example, if the terminal is authenticated, “4-1 = 3”. If the terminal is not authenticated, the received “number of authenticated users” is used as it is.

The display unit 50 displays the screen generated by the processing unit 42. FIG. 15 shows a screen displayed on the display unit 50 of the terminal device 12 according to the second embodiment of the present invention. This is shown in FIG.
Similarly to a)-(b), it is a contact list screen and shows a list of users using other terminal devices 12. Here, since the information regarding the authentication status does not include information indicating whether or not each terminal device has been authenticated, unlike FIG. 7A to FIG. 7B, a key icon for the authenticated terminal device is displayed. Is not shown. On the other hand, as “Authorized”, a ratio between the number of other terminal devices 12 included in the group and the number of authenticated terminal devices 12 among the other terminal devices 12 included in the group is displayed. . In the example of this figure, it is “3/20”. In addition,
You may display the ratio of the number of the terminal devices 12 of the whole group including an own terminal, and the number of the terminal devices 12 by which the whole group was authenticated. That is, in the above example, “4/21” may be displayed. Alternatively, a percentage display such as “15% of terminal devices have been authenticated” may be performed. Also, without using the ratio, “3 terminal devices have been authenticated”, “3 device authentication:
A display such as “17 unauthenticated” may be displayed. That is, information based on the number of authenticated terminal devices among the terminal devices included in the group may be displayed.

A notification area 70 is provided in a part of the screen. The notification area 70 is displayed in “red” when the unauthenticated terminal device 12 is included in the other terminal devices 12 included in the group. On the other hand, the notification area 70 is displayed in “blue” when all the other terminal devices 12 included in the group are authenticated. In this way, the display color of the notification area 70 is changed according to whether or not all other terminal devices 12 included in the group have been authenticated. That is, when all the other terminal devices 12 included in the group are authenticated, the display unit 50 displays that all the other terminal devices 12 are authenticated. The notification area 70 may be provided in the first embodiment. Further, “blue” may be displayed only when all the terminal devices 12 including the terminal itself have been authenticated. Further, when the terminal is not authenticated, a special display such as “yellow” may be displayed. Furthermore, when the own terminal is not authenticated, the display may be changed according to the number of other authenticated terminal devices 12. For example, the display color or the blinking speed of the display is changed according to the number of other terminal devices 12 that have been authenticated, and when only the own terminal is not authenticated, a display such as blinking “orange” in a short cycle, etc. You may do. When such a method is used, when the user using the terminal device 12 forgets the authentication operation, the user's attention can be drawn, and the number of authenticated terminal devices in the group can be increased.

According to the present embodiment, since the combination of the number of authenticated terminal devices and the number of unauthenticated terminal devices among the group of terminal devices is transmitted as information related to the authentication status, the amount of data to be transmitted Can be reduced. Further, when all the other terminal devices included in the group are authenticated, it is displayed that all the other terminal devices are authenticated, so it is possible to easily grasp the authentication status.
(Example 3)
Next, Example 3 will be described. The third embodiment relates to a business wireless system including a management device as before. Example 3 corresponds to a combination of Example 1 and Example 2. In the first embodiment, the information related to the terminal device of the group is transmitted from the management device to the terminal device, so that detailed information is notified. On the other hand, in the second embodiment, since the statistically processed information is transmitted from the management device to the terminal device, the transmission capacity is reduced. Therefore, the third embodiment reduces the transmission capacity while
The purpose is to notify detailed information. The monitoring device according to the third embodiment transmits the statistically processed information to the terminal device, and the terminal device displays the same as in the second embodiment. When the user who confirmed the display needs more detailed information, the user transmits a transmission request for information on each terminal device of the group from the terminal device to the management device. Subsequently, the same processing as in the first embodiment is performed. The business wireless system 100, the management device 20, and the terminal device 12 according to the third embodiment are illustrated in FIG.
It is the same type as 3 and 6. Here, it demonstrates centering on the difference from before.

3 generates the number of terminal devices 12 that have been authenticated and the terminal device 1 that has not been authenticated.
By combining with the number of 2, information on the authentication status is generated. The transmission unit 60 outputs information on the authentication status in the format shown in FIG. Receiver 5 in FIG.
6 receives from the base station device 10 information related to the authentication status of the terminal devices 12 included in the group. The processing unit 42 and the display unit 50 display a screen as shown in FIG. The user operates the operation unit 48 to input a detailed information transmission request instruction. When the processing unit 42 receives the instruction input, the processing unit 42 generates a transmission request, and the transmission unit 54 transmits the transmission request to the base station apparatus 10 through the uplink control channel.

The receiving unit 62 of the management device 20 in FIG. 3 receives a transmission request via the base station device 10 and the network 14. The production | generation part 34 produces | generates the information regarding an authentication condition by combining the information of the authentication result of each terminal device 12 of a group. The transmission unit 60 outputs information related to the authentication status in the format shown in FIG. The receiving unit 56 in FIG. 6 receives from the base station device 10 information related to the authentication status of other terminal devices 12 included in the group. The processing unit 42 and the display unit 50 display a screen as shown in FIGS.

FIG. 16 is a flowchart illustrating a reception procedure by the terminal device 12 according to the third embodiment of the present invention. The receiving unit 56 and the processing unit 42 receive information on the authentication status in a simplified format including a combination of the number of authenticated terminal devices and the number of unauthenticated terminal devices (S8).
0). If the processing unit 42 and the transmission unit 54 request transmission in the normal format (Y in S82)
The receiving unit 56 and the processing unit 42 receive information related to the authentication status in a normal format in which the authentication results of the individual terminal devices 12 of the group are combined (S84). On the other hand, if the processing unit 42 and the transmission unit 54 do not request transmission in the normal format (N in S82), step 84 is omitted.

According to the present embodiment, since the combination of the number of authenticated terminal devices and the number of unauthenticated terminal devices is transmitted as information related to the authentication status, the information regarding each terminal device is transmitted. Detailed information can be notified while reducing.

In the above, this invention was demonstrated based on the Example. This embodiment is an exemplification, and it will be understood by those skilled in the art that various modifications can be made to the combination of each component and each processing process, and such modifications are also within the scope of the present invention. .

In the first to third embodiments of the present embodiment, the terminal device 12 is another terminal device 1 that is a call target.
The call of the other terminal device 12 is executed regardless of whether or not 2 is authenticated. However, the present invention is not limited to this. For example, the processing unit 42 may change the strength of the encryption used for the call depending on whether or not the other terminal device 12 is authenticated. Further, the processing unit 42 may perform incoming call restriction so as not to receive a call from another terminal device 12 that is not authenticated.
Moreover, the process part 42 may perform transmission restrictions that it does not call with respect to the other terminal device 12 which is not authenticated. In addition, the terminal device 12 is another terminal device 12 that has not been authenticated.
LED (Light Emitting Diode) for warning when calling
) May be lit or blinking. According to this modification, the safety of communication can be improved.

Furthermore, in the first to third embodiments, the terminal device 12 is displayed on the display unit 50 to notify the authentication status. However, the terminal device 12 is notified by the sound of voice synthesis, or the external device such as a headset or an external display device May be provided, and a notification unit that outputs an authentication status for notification to the user may be provided.

In the first to third embodiments of the present invention, the management device 20 is connected to the network 14. However, the present invention is not limited to this. For example, the management device 20 may be incorporated in any one of the base station devices 10. According to this modification, the degree of freedom of configuration can be improved.

10 base station device, 12 terminal device, 14 network, 16 area, 2
0 management device, 30 communication unit, 32 processing unit, 34 generation unit, 36 storage unit,
40 communication unit, 42 processing unit, 44 microphone, 46 speaker, 48 operation unit,
50 display unit, 52 storage unit, 54 transmission unit, 56 reception unit, 60 transmission unit,
62 Receiver, 100 Commercial radio system.

Claims (12)

A terminal device used in a communication system for executing a one-to-many group call in which voice signals transmitted from one terminal device belonging to a group are received by a plurality of terminal devices belonging to the same group,
A receiving unit that receives, from the management device, information related to an authentication status indicating whether or not user authentication for authenticating a user who uses the terminal device is performed in another terminal device included in the group;
It is a screen showing the authentication status of each of a plurality of terminal devices in a group that can be a call partner based on the information received by the receiving unit, and the name of the terminal device and whether or not user authentication is performed on the terminal device A display unit that displays a contact list screen that associates information indicating such information and the name of the user who uses the terminal device when user authentication of the terminal device is performed;
A terminal device comprising:   The terminal device according to claim 1, wherein both the terminal device for which user authentication is performed and the terminal device for which user authentication is not performed can participate in the group call. An operation unit for allowing a user to input a password set for a group or a password set for each user;
A processing unit capable of executing a user authentication process for confirming that the user using the terminal device is a valid user based on the password input in the operation unit;
When the user authentication process is executed and succeeds, information indicating that the authentication result is true is transmitted, and when the user authentication process is executed and is not successful, the user authentication process is performed. If not, a transmitter that transmits information indicating that the authentication result is false;
The terminal device according to claim 1, further comprising: The display unit, respectively corresponding to the plurality of terminal devices in the group that may be the other party, shows an icon indicating whether the user authentication is performed in each terminal, on whether the user authentication has been made The terminal device according to any one of claims 1 to 3, wherein the terminal device is displayed as information . Wherein the display unit, among the terminal devices in the group, information indicating a ratio of a terminal device User chromatography The authentication is performed, to any one of claims 1 to 4, characterized in that to display the The terminal device described.   6. The display device according to claim 1, wherein the display unit changes a display color of a predetermined area of the screen in accordance with the number of terminal devices that have been subjected to user authentication among the terminal devices in the group. The terminal device according to claim 1. The terminal device according to any one of claims 1 to 6, further comprising a processing unit that turns on or blinks a warning light when making a call with another terminal device that has not been authenticated. A management device used in a communication system for executing a one-to-many group call in which voice signals transmitted from one terminal device belonging to a group are received by a plurality of terminal devices belonging to the same group,
A generation unit that generates information about an authentication status indicating whether or not user authentication for authenticating a user who uses a terminal device in the group is performed;
A transmission unit that transmits the information generated in the generation unit to the terminal devices in the group;
With
The information generated in the generation unit is information indicating an authentication status of each of a plurality of terminal devices in a group that can be a communication partner of the terminal device to which the transmission unit transmits the information. Display on the terminal device a contact list screen associating information indicating whether or not the user authentication is performed in the terminal device and the name of the user who uses the terminal device when the user authentication of the terminal device is performed. Information for
A management device characterized by that.   9. The management device according to claim 8, wherein both the terminal device for which user authentication is performed and the terminal device for which user authentication is not performed can participate in the group call. Claim wherein the generator is further characterized by generating information including the number of terminal devices the number and the user authentication of the terminal device Yoo over The authentication is performed is not performed as the information on the authentication status 8. The management device according to 8. A program executed by a terminal device in a communication system for executing a one-to-many group call in which a voice signal transmitted from one terminal device belonging to a group is received by a plurality of terminal devices belonging to the same group, ,
A receiving step of receiving, from the management device, information on an authentication status indicating whether or not user authentication for authenticating a user who uses the terminal device is performed in another terminal device included in the group;
It is a screen showing the authentication status of each of a plurality of terminal devices in a group that can be a call partner based on the information received in the receiving step, the name of the terminal device and whether or not user authentication is performed in the terminal device A display step for displaying a contact list screen in which information indicating whether or not the user authentication of the terminal device is associated with the name of the user who uses the terminal device ;
For causing a terminal device to execute. A computer in a communication system that executes a one-to-many group call in which a voice signal transmitted from one terminal device belonging to a group is received by a plurality of terminal devices belonging to the same group,
A generation step of generating information on an authentication status indicating whether or not user authentication for authenticating a user who uses a terminal device in the group is performed;
A transmission step of transmitting the information generated in the generation step to the terminal devices in the group;
A program for executing
The information generated in the generating step is information indicating an authentication status of each of a plurality of terminal devices in a group that can be a communication partner of the terminal device to which the information is transmitted in the transmitting step, and the name of the terminal device, A contact list screen in which information indicating whether or not user authentication is performed in the terminal device and the name of the user who uses the terminal device is associated with the terminal device is displayed on the terminal device. Information to display
A program characterized by that.

Images