JP2005025621A - Communication system, communication device, and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable the selective connection of only a desired participant from an unspecified number of conference participants. <P>SOLUTION: This communication system comprises a host PC 402 owned by the organizer of a conference performed by use of communication, an access point 403, and client terminals 406 owned by participants to the conference. The client terminals 406 transmit user data for identifying the conference participants to the host PC 402, and the host PC 402 receives the user data transmitted from the client terminals 406, and adds the user data to a participant list describing user data for the client terminals 406 connected to the host PC 402 in the past. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a communication system used when a conference is performed by wireless communication or the like. For example, the present invention relates to a technology for connecting only to a specific group from a large number of unspecified participants in a conference.
[0002]
[Prior art]
In recent years, IrDA (Infrared Data Association: a communication standard for performing data transfer using infrared rays), Bluetooth (a communication standard for wireless connection between a personal computer and a mobile phone, home appliances, etc.), HomeRF (personal in-home use) A wireless communication system in a personal area using a communication standard such as a communication standard aiming to connect a computer and a home appliance or an acoustic device via a wireless network has been attracting attention. In particular, Bluetooth and HomeRF have advantages such as lack of directivity and high transparency when compared with an infrared communication system such as IrDA, and future development is expected.
[0003]
Bluetooth is one of the operation settings that wireless LAN devices have, which is an operational setting that allows wireless slaves to communicate with each other without a wireless master device. A piconet with 8 devices and a communication range of 10 m can be constructed and communicated. As for the communication speed of Bluetooth, it is possible to perform downlink 721 Kbps and uplink 57.6 Kbps in asynchronous communication (bps: bits per second). Furthermore, Bluetooth supports voice communication and has various features such as being able to transfer voice and data using a single channel, and is expected to be used on various platforms.
[0004]
As one of the platforms, a conference system using wireless communication is considered. Conventionally, problems such as complicated wiring for connecting devices have been pointed out when a network using wired communication is used in a conference. However, such problems can be solved by using wireless communication such as Bluetooth. want to be.
[0005]
Here, a flow of general Bluetooth connection processing will be described. Here, a state of communication between a host (host) that hosts a conference and a client (participant) that participates in the conference, and authentication and encryption processing will be described.
[0006]
In order to establish a connection in Bluetooth, it is performed in the flow of “Inquiry”, “Call” (Page), “Authentication” (Authentication), and “Encryption” (Encryption). When an inquiry packet (IQ packet) is broadcast from a master (host (organizer)), a plurality or a single connectable device on the slave (client (participant)) side receiving the packet transmits a Bluetooth-specific FHS packet. Send to master. The FHS packet received by the master includes the Bluetooth address of the device that transmitted the FHS packet, and the master synchronizes with a specific device by referring to the list of Bluetooth addresses.
[0007]
At this time, since the ID address included in the FHS packet is displayed as it is in the Bluetooth address list, it is difficult for the master to specify the device as the slave. Therefore, the master has a function capable of searching for the name of each device so that the device can be easily identified. In this case, the master means a device having a role of managing network traffic and state, and the slave means a managed device.
[0008]
There is an LMP_name_Req command as a command for searching for the name of each device as a slave. On the other hand, the command for the slave to return the Bluetooth (BT) device name to the master is the LMP_name_Rsp command. Based on the exchange of the command between the master and the slave, the master can acquire a Bluetooth device name (user friendly name). Conventionally, the Bluetooth device name has an area of a maximum of 248 bytes and can be freely set so that the master can easily identify each device as a slave. The Bluetooth device name generally stores a model name or the like.
[0009]
Authentication for users (devices) connected to the conference system is a unique authentication password set in the device, and a 48-bit number that is managed and issued by this authentication password and device-specific ID (IEEE (Institut of Electrical and Electronics Engineers)). Address), etc., and is managed by two. The authentication password is called a PIN (Personal Identification Number) code and is composed of an arbitrary character string. The encryption key is called a link key, and is used for data encryption in addition to user authentication.
[0010]
In general, a client (participant) requests a link key, and both the client (participant) and the host (organizer) enter a PIN code. In a situation where the host (host) and the client (participant) are connected to the conference system for the first time, the client (participant) needs to input the same PIN code as the PIN code owned by the host (host). If the host (organizer) determines that the PIN code entered from the client (participant) is correct, the host (organizer) establishes a link to allow authentication and allows the client (participant) to connect. . At this time, the host (organizer) creates a link key for the client (participant) by multiplying its own PIN code and user data of the client (participant) by a random number, and this is used as the client (participant). Are stored in the link key table together with the user data.
[0011]
When creating the link key, the PIN code of the connection partner and the user data of the user are also used.
[0012]
FIG. 9 shows a processing procedure for creating a link key. As shown in FIG. 9, if the client (participant) and the host (organizer) have an equivalent system (algorithm), an equivalent link key is created by sharing the random number and the PIN code A. Can do.
[0013]
On the other hand, if the client (participant) has been connected to the host (organizer) before, the link key of the client (participant) has already been registered in the link key table. ) Performs authentication using only the link key. Next, the host (organizer) encrypts the data and transmits / receives a connection completion notification between the client (participant) and the host (organizer) to complete the connection.
[0014]
FIG. 10 shows the packet format of the link manager packet payload that stores the Bluetooth device name. The link manager packet payload is composed of L_CH (2 bits), Flow (1 bit), Length (9 bits), NU (4 bits), LM / L2CAP Payload (0-32 / 512 bytes), and CRC16 (16 bits). In general, the name of a mobile terminal used for wireless communication can be specified in the Bluetooth device name, but since the Bluetooth device name area can be freely used up to 248 bytes, the user can It is also possible to change the name manually.
[0015]
On the other hand, a technique for encrypting transmission data (PIN code) using a personal identification number acquired from a fingerprint sensor has been proposed (see, for example, Patent Document 1). The proposal has a different configuration from the present invention and does not encrypt Name information.
[0016]
[Patent Document 1]
JP 2001-186123 A
[0017]
[Problems to be solved by the invention]
However, the above prior art has the following problems. For example, it is assumed that a connection is made only to a client (participant) belonging to a specific group among an unspecified number of clients (participants). If it is a meeting where only a fixed member participates each time, such as a regular meeting, it is possible to talk to the participant by verbally listening to the Bluetooth address and connecting to the participant. If there is a large number of participants, it is not possible to ask each person for the Bluetooth address.
[0018]
There is also a method of connecting to a specific client (participant) based on the Bluetooth address obtained by Inquiry. In this case, the client (participant) brought it to find the desired client (participant). Each person must check the Bluetooth address of the device equipped with Bluetooth. In this way, there is a problem that the start of the conference is delayed due to any additional work being added to the host (host) or client (participant).
[0019]
An object of the present invention is to provide a communication system, a communication device, and a program capable of selecting and connecting only a desired participant from an unspecified number of conference participants.
[0020]
[Means for Solving the Problems]
In order to achieve the above object, the present invention comprises an organizer-side communication device owned by an organizer of a conference performed using communication, and a participant-side communication device owned by a participant of the conference, and the participation The party side communication device transmits user data for identifying a conference participant to the organizer side communication device, and the organizer side communication device receives the user data transmitted from the participant side communication device. The user data is added to a participant list.
[0021]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0022]
FIG. 1 is a conceptual diagram illustrating a configuration example of a communication system according to the present embodiment. The communication system includes a conference system 401 having a host computer (abbreviated as a host PC) 402 and an access point 403 configured by, for example, a personal computer, and a personal computer (personal computer) serially connected to the access point 403 by, for example, an RS232C cable 404. And a client terminal 406 composed of a PDA (Personal Digital Assistant) or a notebook personal computer (abbreviated as a notebook PC) equipped with a wireless communication function.
[0023]
In the present embodiment, the case where the host PC 402 and the access point 403 are configured separately as the conference system 401 will be described as an example. However, as the conference system 401, the host PC 402 and the access point 403 are integrated. However, the configuration of the conference system 401 is not limited to a specific configuration, and it goes without saying that any configuration of the above may be used. In this embodiment, a case where a wireless communication function is installed as the client terminal 406 will be described as an example. However, the connection between the client terminal 406 and the conference system 401 is not limited to wireless communication. Of course, it goes without saying that connection by wired communication is also taken into consideration.
[0024]
FIG. 2 is a block diagram illustrating a configuration example of the client terminal 406. The client terminal 406 includes a Bluetooth wireless unit 510 and a client terminal main body 516.
[0025]
The Bluetooth wireless unit 510 includes an external interface 511, a link baseband controller (LBC) 512, a CPU 513, and a Bluetooth communication wireless circuit (abbreviated as a wireless circuit) 514 having a communication antenna 515. ing.
[0026]
The radio circuit 514 performs digital modulation, spread spectrum, signal level amplification, and the like. The CPU 513 and the LBC 512 have a function as a link manager that performs processing for configuring a wireless link, signal encoding / decoding processing, and the like. The external interface 511 has a function as a host command interface (HCI).
[0027]
On the other hand, the client terminal body 516 includes a transmission / reception buffer 501, a RAM 502, a PROM 503, a CPU 504, an audio / video identification unit 505, an LCD control unit 506, an input / output unit 507 having an operation unit 508 and a display unit 509. It has.
[0028]
The transmission / reception buffer 501 temporarily stores transmission / reception data. The CPU 504 controls the entire function of the client terminal 406. The RAM 502 serves as a work area when the CPU 504 performs processing. The PROM 503 stores a program for operating the CPU 504, a conference system application, various data such as a communication destination address, and the like. The audio / video identification unit 505 identifies multimedia information into audio data and image data. The operation unit 508 includes a microphone, a speaker, a key button, and the like. The display unit 509 is configured by, for example, an LCD that displays an image according to the control of the LCD control unit 506. The LCD control unit 506 performs display control for the display unit 509.
[0029]
FIG. 3 is a block diagram illustrating a configuration example of the access point 403. The access point 403 includes a Bluetooth wireless unit 619 and an access point main body 620.
[0030]
As with the client terminal 406, the Bluetooth wireless unit 619 includes a Bluetooth communication wireless circuit (abbreviated as a wireless circuit) having an external interface 614, a link baseband controller (LBC) 615, a CPU 616, and a communication antenna 618. 617.
[0031]
The radio circuit 617 performs digital modulation, spread spectrum, signal level amplification, and the like. The CPU 616 and the LBC 615 have a function as a link manager that performs processing for configuring a wireless link, signal encoding / decoding processing, and the like. The external interface 614 has a function as a host command interface (HCI).
[0032]
On the other hand, the access point body 620 includes a CPU 601, a power supply unit 602, an AC adapter 603, a RAM 604, a ROM 605, a modem unit 606, a switch 607, an RTC (Real Time Clock) circuit 608, and a connector (PC card). Interface) 609, a modular jack 610, a public line 611, an RS232C connector 612, and a plurality of LEDs 613.
[0033]
The CPU 601 controls the overall operation of the access point 403. A power source 602, RAM 604, ROM 605, modem unit 606, switch 607, RTC circuit 608, and connector 609 as a PC card interface are connected to the CPU 601. Power from the AC adapter 603 connected to the AC power supply is supplied to the CPU 601 through the power supply unit 602. The modem unit 606 is connected to the public line 611 via the modular jack 610. The modem unit 606 converts analog data input from the public line 611 via the modular jack 610 into digital data and transfers the digital data to the CPU 601. The RS232C connector 612 is provided for serially connecting an external device such as the personal computer 405 and the access point 403 via the RS232C cable 404. Modulation / demodulation operations by the modem unit 606 and data transfer via the RS232C connector 612 are performed under the control of the CPU 601.
[0034]
The ROM 605 stores a communication protocol, a PIN code, a link key, a connection destination address list, and the like, and also has a function as a nonvolatile memory. The RAM 604 stores an operation program for the access point 403, a device driver, and the like. The RTC circuit 608 is a circuit for measuring the current time. A plurality of LEDs 613 are connected to the RTC circuit 608.
[0035]
FIG. 4 is a diagram showing a sequence related to Bluetooth connection. A host that hosts a conference (organizer: a conference system 401 including a host terminal 402 and an access point 403) and a client that participates in the conference (participant: client terminal 406). ) And the authentication and encryption processing.
[0036]
First, the host (organizer) makes an inquiry request (inquiry) in order to search for a communicable partner (client (participant)) in the communication area (701). Next, the host (organizer) sends an LMP_name_Req command, which is a command for searching for a device name (to acquire the Bluetooth device name of the device owned by the client (participant)), to the client that responded to the inquiry request. It is transmitted to the client (participant) (702). In response to this, the client (participant) transmits an LMP_name_Rsp command, which is a command for returning the Bluetooth device name to the host (organizer), to the host (organizer) (703). At this time, the client (participant) does not need to perform an operation such as pressing the button of the operation unit 508 of the client terminal 406 when transmitting the LMP_name_Rsp command.
[0037]
The host (organizer) refers to the participant list (a list in which user data of clients (participants) connected to the host (organizer) in the past) is referred to and calls (paging) the desired connection partner. A synchronization process called 704 is performed (704). Next, the client (participant) side requests a link key from the host (organizer) (705). Next, both the client (participant) and the host (organizer) enter the PIN code (706). Next, the host (organizer) performs an authentication process using the link key created by the PIN code (707), encrypts the data (708), and sends a connection completion notification to the host (organizer) and client (host). (Participants) receive each other and end (709).
[0038]
FIG. 5 is a flowchart illustrating an example of a procedure for installing the conference system function in devices (host PC 402 and client terminal 406) owned by the host (host) and the client (participant). The processing shown in this flowchart is executed by the CPU (not shown) of the host (host) host PC 402 and the CPU 504 of the client (participant) client terminal 406 based on the program in response to the operation of the operator.
[0039]
The host (host) and the client (participant) start the installation of the conference system function by a predetermined operation from the operation unit of each of the host PC 402 and the client terminal 406 (step S801), and specify the installation destination device (step S801). Step S802). Next, various modes are designated by a predetermined operation from the operation unit (step S803). Here, the various modes refer to the mode in which the client function is installed in the device, the mode in which the host function is installed in the device, the full installation mode (installation with limited conference system functions), and the custom installation mode (conferencing system functions are limited). No installation) mode, automatic mode (mode in which user data and group keywords are automatically stored in a specific packet when the device starts up), manual mode (user data and group keywords are manually entered and stored in specific packets) Mode).
[0040]
Next, user data for identifying a client (participant) is input by a predetermined operation from the operation unit (step S804). Here, the user data includes name, affiliation, extension number, personal name code, data that characterizes the client (participant) (specific password, Bluetooth address unique to the device owned by the client (participant)), or a conference Data such as days. By inputting the above user data, the installation of the conference system function ends (step S805).
[0041]
The automatic mode is a mode for creating a Bluetooth device name by adding a group keyword to the head of the Bluetooth device name when the conference system function is activated. Further, in the case of the automatic mode, an operation is performed in which it is regarded as OK after a predetermined time has passed and the process proceeds to the next control. The manual mode is a mode in which a group keyword is manually input from the input / output unit 507 of the client terminal 406. In addition, the above-described various modes can be changed on the device setting screen not only when the conference system function is installed but also when the application is launched after the installation. Further, after the setting is changed, a command indicating the purpose of the setting change is transmitted to the counterpart device, and a process for unifying the modes on the transmitting side and the receiving side is performed.
[0042]
FIG. 6 is a flowchart showing the processing of the client terminal 406 owned by the client (participant). The processing shown in this flowchart is executed by the CPU 504 of the client (participant) client terminal 406 based on a program.
[0043]
When the client (participant) enters the conference room, the conference system application stored in the PROM 503 is activated by performing a predetermined operation from the operation unit 508 of the client terminal 406 (step S901). When the conference system application is activated, user data input at the time of installation on the client terminal 406 is displayed on the display unit 509 of the client terminal 406, so that the client (participant) displays contents (password, user name, etc.) on the display unit 509. Is confirmed (step S902). When the client terminal 406 is set to the automatic mode, it is automatically determined to be OK after a certain amount of time has passed. However, when the client terminal 406 is set to the manual mode, the button of the operation unit 508 is used. An operation to confirm by pressing is required.
[0044]
Therefore, when the client terminal 406 is set to the manual mode, the client (participant) inputs a group keyword from the operation unit 508. On the other hand, when the client terminal 406 is set to the automatic mode, the group keyword input when the conference system function is installed on the client terminal 406 is stored at the head of the Bluetooth device name. The group keyword referred to here includes, for example, keywords such as “Ox regular” (meeting name), “planning △ section” (affiliation), “high priority” (priority indicating the priority of the meeting), etc. It is for grouping participants.
[0045]
Next, the conference system function installed in the client terminal 406 according to the procedure shown in FIG. 5 writes the user data in the Bluetooth device name (step S904). In this case, the client (participant) does not need processing such as pressing the button of the operation unit 508 of the client terminal 406. Since the information stored in the Bluetooth device name includes important data such as a person name code and an extension number, the client device 406 performs an encryption process on the Bluetooth device name using an algorithm specific to the conference system function (step S905). ) Waits for communication from the host (organizer) side (step S906).
[0046]
Next, the client terminal 406 receives an LMP_name_Req command from the host (organizer) via the Bluetooth wireless unit 510 (step S907), and receives a packet storing the information of the Bluetooth device name into which the user data is written in step S904. It transmits to a host (organizer) (step S908). Accordingly, authentication and encryption are performed in the host (host) (step S909). The client terminal 406 receives the connection completion notification from the host (organizer) to complete the connection (step S910), and can send and receive data between the client (participant) and the host (organizer) (step S911). ).
[0047]
FIG. 7 is a flowchart showing the processing of the host PC 402 of the host (organizer). The processing shown in this flowchart is executed based on a program by the CPU of the host (host) host PC 402.
[0048]
The host (host) host PC 402 activates the conference system application stored in the ROM (not shown) (step S1001). Next, the host PC 402 makes an inquiry to search for a communicable device (step S1002). Next, the host PC 402 transmits an LMP_name_Req command via the Bluetooth wireless unit 619 of the access point 403 in order to acquire the Bluetooth device name of the client device that has responded to the inquiry (step S1003). Next, the host PC 402 receives the LMP_name_Rsp command and the Bluetooth device name from the client (participant) via the Bluetooth wireless unit 619 of the access point 403 (step S1004), and the received Bluetooth device name is an algorithm specific to the conference system. (Step S1005).
[0049]
At this time, if the conference system function of the client (participant) and the host (host) is the same, the encryption algorithm is the same, so the decryption can be performed, but the conference where the client (participant) and the host (host) are different. If the system function is installed, or if the client (participant) has not installed the conference system function, the data from the client (participant) cannot be decrypted. (Participant) is regarded as an unauthorized participant and connection is refused. Moreover, even if a third party intercepts the Bluetooth device name, data leakage from the client (participant) cannot be decrypted unless the same conference system function is installed, thus reducing data leakage. .
[0050]
Next, the host (host) host PC 402 confirms whether or not there is a participant list indicating participants who participate in the conference in a storage device such as a hard disk (step S1006). If there is no participant list, a participant list is created (step S1007). The case where there is no participant list is when the client (participant) uses the conference system function on the host (organizer) side for the first time or when the past participant list is deleted. If the presence of the participant list is confirmed, the host PC 402 adds the content of the acquired Bluetooth device name to the participant list (step S1008).
[0051]
Next, the host (organizer) selects a group keyword from the operation unit of the host PC 402. For example, when it is desired to connect only to a client (participant) having the group keyword “quality assurance meeting”, the group keyword “quality assurance meeting” is selected (step S1009). Next, the host PC 402 filters the participant list with the selected group keyword (step S1010). Next, the host PC 402 determines a desired name extracted from the participant list by the filtering as a connection partner (step S1011), and performs a call (step S1012). Thereafter, the host PC 402 performs authentication and encryption (step S1013), and transmits a connection completion notification to the client terminal 406 of the client (participant) via the Bluetooth wireless unit 619 of the access point 403 (step S1014). ), It will be in the standby state.
[0052]
FIG. 8 is a diagram illustrating a concept until the host (organizer) determines a connection destination from the Bluetooth device name acquired from the client (participant). FIG. 8 shows an example in which the host (organizer) adds the Bluetooth device name acquired from the client (participant) to the participant list, and determines the connection destination by filtering the participant list.
[0053]
As described above, according to the present embodiment, the client (participant) characterizes the name, affiliation, extension number, personal name code, name, affiliation, extension number, personal name code, client (participant) in advance. User data such as data (specific password, device-specific Bluetooth address owned by the client (participant)) is stored in the Bluetooth device name, and the host (organizer) from the client (participant) uses the LMP_name_Req command to execute Bluetooth. A device name is acquired, and a desired connection partner is connected based on a group keyword included in information indicating the Bluetooth device name. Since this LMP_name_Req command is one of the Bluetooth connection sequences, the host (host) can acquire user data until the connection process is completed, and unnecessary data communication is not required.
[0054]
As a result, the host (host) can select and connect only a desired client (participant) from an unspecified number of clients (participants). In addition, an LMP_name_Req command (a command for acquiring a Bluetooth device name of a device owned by the client (participant)) or an LMP_name_Rsp command (client) used in communication between the host (organizer) and the client (participant). (Command that returns Bluetooth device name from (participant) to host (organizer)) can use the command in the Bluetooth connection sequence, so it is not necessary to add a sequence process to implement the present invention. Yes, communication processing between the host (host) and the client (participant) can be simplified.
[0055]
In the above embodiment, the case where the communication system has the configuration shown in FIG. 1 has been described as an example. However, the present invention is not limited to this, and the number of installed components and the installation form of the communication system are not limited thereto. The installed model can be arbitrary. For example, the client terminal is not limited to a PDA or a notebook PC, and other devices having a communication function may be used in addition to these.
[0056]
In the above-described embodiment, a conference is given as an example of selecting and connecting only a desired client (participant) from an unspecified number of clients (participants). However, the present invention is not limited to this. However, the present invention can be applied to other forms other than the conference in which an unspecified number of clients (participants) participate.
[0057]
Another object of the present invention is to supply a storage medium storing software program codes for realizing the functions of the embodiments to a system or apparatus, and a computer (or CPU, MPU, etc.) of the system or apparatus stores the storage medium. This can also be achieved by reading and executing the program code stored in.
[0058]
In this case, the program code itself read from the storage medium realizes the functions of the above-described embodiment, and the storage medium storing the program code constitutes the present invention.
[0059]
Examples of the storage medium for supplying the program code include a floppy (registered trademark) disk, a hard disk, a magneto-optical disk, a CD-ROM, a CD-R, a CD-RW, a DVD-ROM, a DVD-RAM, and a DVD. -RW, DVD + RW, magnetic tape, nonvolatile memory card, ROM, etc. can be used.
[0060]
Further, by executing the program code read by the computer, not only the functions of the above-described embodiments are realized, but also an OS (operating system) running on the computer based on the instruction of the program code. A case where part or all of actual processing is performed and the functions of the above-described embodiments are realized by the processing is also included.
[0061]
Further, after the program code read from the storage medium is written in a memory provided in a function expansion board inserted into the computer or a function expansion unit connected to the computer, the function expansion is performed based on the instruction of the program code. This includes the case where the CPU or the like provided in the board or the function expansion unit performs part or all of the actual processing, and the functions of the above-described embodiments are realized by the processing.
[0062]
[Example of embodiment]
Examples of embodiments of the present invention are listed below.
[0063]
“Embodiment 1”
An organizer-side communication device owned by the organizer of the conference using communication, and a participant-side communication device owned by a participant of the conference
The participant communication device transmits user data for identifying a conference participant to the organizer communication device, and the organizer communication device receives the user data transmitted from the participant communication device. And adding the user data to the participant list,
The user data is data including at least one of name, affiliation, extension number, person name code, specific password, address unique to the participant communication device, conference date,
The said participant list is a list which described the user data of the participant side communication apparatus connected to the said organizer side communication apparatus in the past, The communication system characterized by the above-mentioned.
[0064]
“Embodiment 2”
The participant communication device includes storage means for storing the user data in a packet, and transmission means for transmitting the user data stored in the packet to the organizer communication device by short-range wireless communication. The communication system according to embodiment 1, which is characterized.
[0065]
“Embodiment 3”
The organizer-side communication device newly receives the user data transmitted from the participant-side communication device by the short-range wireless communication, and the user data received by the receiver is newly added to the organizer. The communication system according to claim 1, further comprising an adding unit that adds the user data of the participant communication device connected to the communication device to the participant list.
[0066]
“Embodiment 4”
The communication system according to claim 2, wherein the storage unit of the participant side communication device stores a group keyword for grouping conference participants in the packet.
[0067]
“Embodiment 5”
5. The communication system according to claim 3, wherein the organizer-side communication apparatus includes an extraction unit that extracts a connection partner using the group keyword from the participant list created by the addition unit. .
[0068]
“Embodiment 6”
The communication system according to embodiment 4 or 5, wherein the group keyword is a keyword including at least one of a meeting name, affiliation, and a priority indicating a priority of the meeting.
[0069]
“Embodiment 7”
The participant-side communication device automatically inputs the user data and the group keyword into the packet when the participant-side communication device is activated, and manually inputs the user data and the group keyword to the packet. 5. The communication system according to claim 1, wherein the communication mode is stored in a manual mode.
[0070]
“Embodiment 8”
The communication system according to embodiment 2, wherein the short-range wireless communication is wireless communication based on Bluetooth.
[0071]
“Embodiment 9”
The communication system according to claim 1, wherein the participant communication device is a device selected from the group consisting of a portable information terminal, a portable computer, and other devices having communication functions other than these.
[0072]
“Embodiment 10”
The communication system according to claim 1, wherein the communication system is applicable when the conference is performed by wired communication between the organizer-side communication device and the participant-side communication device.
[0073]
“Embodiment 11”
In the participant side communication device that can communicate with the organizer side communication device owned by the organizer of the conference conducted using communication,
Storage means for storing user data for identifying a conference participant in a packet; and transmission means for transmitting the user data stored in the packet to the organizer-side communication device by short-range wireless communication. Participant side communication device.
[0074]
“Embodiment 12”
In the organizer side communication device that can communicate with the participant side communication device owned by the participants of the conference using communication,
Receiving means for receiving user data for identifying a conference participant transmitted from the participant side communication device by short-range wireless communication, and the user data received by the receiving means are newly added to the organizer side communication device. An organizer-side communication device, comprising: an adding means for adding to the participant list as user data of the connected participant-side communication device.
[0075]
“Embodiment 13”
In a communication connection method executed by a communication system including an organizer-side communication device owned by a conference organizer that uses communication and a participant-side communication device owned by a participant of the conference,
A transmission step of transmitting user data for identifying a conference participant from the participant communication device to the organizer communication device, and the user data transmitted from the participant communication device as the organizer communication device. A receiving step received by the step, and an additional step of adding the user data received by the receiving step to a participant list in which user data of a participant side communication device connected to the organizer side communication device has been recorded in the past. A communication connection method characterized by comprising:
[0076]
“Embodiment 14”
In a program for executing a communication connection method by a communication system including an organizer-side communication device owned by the organizer of a conference performed using communication and a participant-side communication device owned by a participant of the conference
A transmission function for transmitting user data for identifying a conference participant from the participant communication device to the organizer communication device, and the user data transmitted from the participant communication device as the organizer communication device. And an additional function of adding the user data received by the reception function to the participant list in which the user data of the participant communication device connected to the organizer communication device in the past is recorded. A program to be realized on a computer.
[0077]
“Embodiment 15”
A program for executing a communication connection method by a communication system including an organizer side communication device owned by an organizer of a conference performed using communication and a participant side communication device owned by a participant of the conference is stored. In a computer-readable storage medium,
The communication connection method includes: a transmitting step of transmitting user data for identifying a conference participant from the participant communication device to the organizer communication device; and the user data transmitted from the participant communication device. The reception step received by the organizer side communication device, and the user data received by the reception step in the participant list describing the user data of the participant side communication device connected to the organizer side communication device in the past A storage medium comprising an additional step of adding.
[0078]
【The invention's effect】
As described above, according to the present invention, the organizer-side communication device can select and connect only a desired participant-side communication device from an unspecified number of participant-side communication devices. . Further, the command used in the communication between the organizer side communication device and the participant side communication device can use a command in a connection sequence of short-range wireless communication (wireless communication by Bluetooth), and thus the present invention is implemented. Therefore, it is not necessary to bother to add sequence processing, and communication processing between the organizer side communication device and the participant side communication device can be simplified.
[Brief description of the drawings]
FIG. 1 is a conceptual diagram showing a configuration example of a communication system according to an embodiment of the present invention.
FIG. 2 is a block diagram illustrating a schematic configuration example of a client terminal.
FIG. 3 is a block diagram illustrating a schematic configuration example of an access point.
FIG. 4 is a diagram illustrating a sequence related to exchange of information on a Bluetooth device name in a Bluetooth connection.
FIG. 5 is a flowchart showing a procedure for installing a conference system function.
FIG. 6 is a flowchart showing a connection procedure on the client (participant) side.
FIG. 7 is a flowchart showing a connection procedure on the host (organizer) side.
FIG. 8 is a diagram illustrating a concept until a connection destination is determined from an acquired Bluetooth device name.
FIG. 9 is a diagram showing a general processing procedure for creating a link key.
FIG. 10 is a diagram illustrating a configuration example of a packet format of a packet payload for storing a Bluetooth device name.
[Explanation of symbols]
401 Conference system
402 Host PC (Organizer side communication device, adding means, extracting means)
403 access point (reception means)
406 Client terminal (participant side communication device)
510 Bluetooth wireless unit (transmission means)
516 Client terminal body (storage means)

Claims (7)

An organizer-side communication device owned by the organizer of the conference using communication, and a participant-side communication device owned by a participant of the conference
The participant communication device transmits user data for identifying a conference participant to the organizer communication device, and the organizer communication device receives the user data transmitted from the participant communication device. And adding the user data to a participant list. The communication system according to claim 1, wherein the organizer-side communication device determines a conference participant based on user data included in the participant list. The communication system according to claim 1, wherein the user data includes a group keyword, and the organizer-side communication device extracts a connection partner based on the group keyword. In a communication device that provides a conference system,
Storage means for storing user data identifying conference participants in a packet;
A communication apparatus comprising: a transmission unit configured to transmit the user data stored in the packet to a meeting organizer side communication apparatus. In a communication device that provides a conference system,
Receiving means for receiving user data for identifying a conference participant transmitted from the participant side communication device;
A communication apparatus comprising: an adding means for adding the user data received by the receiving means to the participant list as user data of a newly connected participant side communication apparatus. In a program for providing a conference system,
A registration step for registering user data;
A determination step of determining a device name based on the user data registered in the registration step;
A program comprising a step of using the device name determined in the determining step as a device name when performing communication. In a program for providing a conference system,
A storage step for storing a plurality of user data acquired in response to an inquiry to the conference participant device;
A program comprising a step of extracting conference participants based on user data stored in the storing step and information specified by an operator.

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