JP2018078604A - Speech terminal and speech function activation method, and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve a problem in two kinds of conventional communication systems of a PDC system and a PHS, that since a call control method for connecting or disconnecting to and from a destination to talk to and a coding method for coding speech data are both different, a conventional talking terminal only has two kinds of speech functions using entirely different communication methods incorporated in a single body and, therefore, cannot use a plurality of kinds of speech functions using a communication system having the same call control method but different coding methods separately for their respective purposes.SOLUTION: A speech terminal exhibits an effect that a plurality of kinds of speech functions using a communication system having the same call control method but different coding methods (e.g., an exclusive terminal function and a non-exclusive terminal function) can be used separately for their respective purposes.SELECTED DRAWING: Figure 18

Description

  The present invention relates to an invention for activating any one of a plurality of call functions of different call methods.

  2. Description of the Related Art In recent years, along with a request to reduce business trip expenses and business trip time, a telephone system for performing a video conference or the like via a communication network such as the Internet has become widespread. By using such a call system, image data and audio data are transmitted and received between a plurality of call terminals, and a video conference can be performed (see Patent Document 1).

  On the other hand, two call functions that use two different communication methods such as PDC (Personal Digital Cellular) and PHS (Personal Handyphone System) are installed in one call terminal. There has been proposed a videophone system that performs a call by switching (see Patent Document 2).

  However, the two types of conventional communication systems are different in both a call control system for connecting or disconnecting a call destination and an encoding system for encoding call data. That is, the conventional call terminal has two types of call functions that use completely different communication methods mounted in one housing, and only operates one function exclusively. Therefore, there is a problem that a plurality of types of call functions using communication systems having the same call control system and different encoding systems cannot be used properly.

  The invention according to claim 1 uses a predetermined call control method for connecting or disconnecting a call destination and a predetermined encoding method for converting call data into IP packets for predetermined display means. A first icon for accepting selection of a first call function for making a call, and selection of a second call function having the same call control method and different encoding method from the first call function. Display control means for displaying a function selection screen showing a second icon for acceptance, acceptance means for accepting selection of the first icon or the second icon, and selection of the first icon A call terminal comprising: an activating unit that activates the first call function or activates the second call function when the selection of the second icon is accepted. .

  As described above, according to the present invention, it is possible to selectively use a plurality of types of call functions using communication systems having the same call control system and different encoding systems.

1 is a schematic diagram of a call system according to an embodiment of the present invention. It is a conceptual diagram which shows the communication condition in the case of implement | achieving a call between the call terminals which have a dedicated terminal function. It is a conceptual diagram which shows the image quality of the image data transmitted / received by the SVC standard in FIG. It is the conceptual diagram which showed the communication condition in the case of implement | achieving a call between the call terminals which have a non-dedicated terminal function. FIG. 5 is a conceptual diagram illustrating image quality of image data transmitted and received according to the AVC standard in FIG. 4. It is an external view of the call terminal which concerns on this embodiment. It is a hardware block diagram of the telephone terminal which concerns on this embodiment. It is a hardware block diagram of the telephone call management system, relay apparatus, program provision system, or maintenance system which concerns on this embodiment. It is a functional block diagram of a call terminal, a relay device, and a call management system that constitute a part of the call system of the embodiment. It is a conceptual diagram which shows a visual information management table. It is a conceptual diagram which shows a relay apparatus management table. It is a conceptual diagram which shows a terminal authentication management table. It is a conceptual diagram which shows a terminal state management table. It is a conceptual diagram which shows a destination list management table. It is a conceptual diagram which shows a session management table. It is a sequence diagram which shows the process of the preparation stage which starts a telephone call between terminals. It is the flowchart which showed the process which selects a dedicated terminal function or a non-dedicated terminal function. It is a conceptual diagram which shows a telephone call function selection screen. It is the flowchart which showed the process which displays a destination list. It is a conceptual diagram which shows a destination list. It is a conceptual diagram which shows the other example of a function selection screen. It is a conceptual diagram which shows the other example of a destination list.

  Hereinafter, an embodiment of the present invention will be described with reference to FIGS.

<< Overall Configuration of Embodiment >>
FIG. 1 is a schematic diagram of a call system according to an embodiment of the present invention. As shown in FIG. 1, the call system 1 includes a plurality of call terminals (10aa, 10ab,...), A display (120aa, 120ab,...) For each call terminal (10aa, 10ab,. The relay apparatus (30a, 30b, 30c), the call management system 50, the program providing system 90, and the maintenance system 100 are constructed. By the communication of the image data and the sound data as an example of the call data by the call system 1, a video conference between remote locations can be realized. A plurality of routers (70a, 70b, 70c, 70d, 70ab, 70cd) select an optimum route for call data.

  Further, the call terminals (10aa, 10ab, 10ac,...), The relay device 30a, and the router 70a are communicably connected via the LAN 2a. The call terminals (10ba, 10bb, 10bc,...), The relay device 30b, and the router 70b are communicably connected via the LAN 2b. The LAN 2a and the LAN 2b are communicably connected via a dedicated line 2ab including a router 70ab. Further, the LAN 2a, the LAN 2b, and the dedicated line 2ab are constructed in a predetermined area X. For example, the region X is Japan, the LAN 2a is constructed in the Tokyo office, and the LAN 2b is constructed in the Osaka office.

  On the other hand, the call terminals (10ca, 10cb, 10cc,...), The relay device 30c, and the router 70c are communicably connected via a LAN 2c. The call terminal 10d (10da, 10db, 10dc,...), The relay device 30d, and the router 70d are communicably connected via a LAN 2d. The LAN 2c and the LAN 2d are communicably connected by a dedicated line 2cd including a router 70cd. Further, the LAN 2c, the LAN 2d, and the dedicated line 2cd are constructed in a predetermined area Y. For example, region Y is the United States of America, LAN 2c is built in a New York office, and LAN 2d is Washington D.C. C. Is built in the office. Area X and area Y are connected to each other via routers (70ab, 70cd) via the Internet 2i.

  In the following, “call terminal” is simply represented as “terminal”, and “call management system” is simply represented as “management system”. Further, an arbitrary terminal among the plurality of terminals (10aa, 10ab,...) Is represented as “terminal 10”, and an arbitrary display among the plurality of displays (120aa, 120ab,...) Is represented as “display 120”. An arbitrary relay device among the plurality of relay devices (30a, 30b, 30c) is represented as “relay device 30”. Further, a terminal as a request source that requests the start of a video conference is represented as a “request source terminal”, and a terminal as a request destination (relay destination) is represented as a “destination terminal”. An arbitrary router among the routers (70a, 70b, 70c, 70d, 70ab, 70cd) is represented as “router 70”.

  The management system 50, the program providing system 90, and the maintenance system 100 are connected to the Internet 2i. The management system 50, the program providing system 90, and the maintenance system 100 may be installed in the region X or the region Y, or may be installed in other regions.

  In the present embodiment, the communication network 2 of the present embodiment is constructed by the LAN 2a, the LAN 2b, the dedicated line 2ab, the Internet 2i, the dedicated line 2cd, the LAN 2c, and the LAN 2d. The communication network 2 may include a place where not only wired communication but wireless communication such as WiFi (Wireless Fidelity) or Bluetooth (registered trademark) is performed.

  In FIG. 1, the four sets of numbers shown under each terminal 10, each relay device 30, management system 50, each router 70, program providing system 90, and maintenance system 100 are in general IPv4. An IP address is simply shown. For example, the IP address of the terminal 10aa is “1.2.1.3”. In addition, IPv6 may be used instead of IPv4. However, in order to simplify the explanation, explanation is made using IPv4.

  In addition, each terminal 10 is not only a call between a plurality of business establishments or a call between different rooms in the same business establishment, but a call within the same room or a call between the outdoors and indoors or outdoors and outdoors. May be used. When each terminal 10 is used outdoors, wireless communication such as a cellular phone communication network is performed.

  Each terminal 10 shown in FIG. 1 is a terminal that realizes a user's call by transmitting and receiving call data, and is, for example, a video conference terminal. Further, the terminal 10 transmits and receives call data using a predetermined communication method (call control method for connecting or disconnecting a call destination and an encoding method for converting call data into an IP packet). Do.

  This call control method includes (1) SIP (Session Initiation Protocol), (2) H.323, (3) SIP extended protocol, (4) Instant Messenger protocol, (5) SIP MESSAGE method (6) Internet relay chat protocol (IRC (Internet Relay Chat)), (7) Protocol that extends the instant messenger protocol, and the like. Among these, (4) Instant Messenger protocol is, for example, (4-1) XMPP (Extensible Messaging and Presence Protocol), or (4-2) ICQ (registered trademark), AIM (registered trademark), or Skype (registered) Trademark). Also, (7) Jingle is a protocol that is an extension of the instant messenger protocol, for example.

  Further, among the plurality of terminals 10, for example, a communication method in which the call control method is an instant messenger protocol (or a protocol obtained by extending the instant messenger protocol) and the encoding method is SVC (Scalable Video Coding) is used. The terminal 10 is represented as “dedicated terminal”. Further, among the plurality of terminals 10, the terminal 10 that uses a communication method in which the call control method and the coding method are different from those of the dedicated terminal is represented as a “non-dedicated terminal”. Furthermore, in this embodiment, as an example of two terminals having different communication methods, “dedicated terminal” is described as a terminal that is manufactured, sold, or managed by a specific company, and “non-dedicated terminal” is specified above. It will be described as a terminal that is manufactured, sold, or managed by other companies. In the present embodiment, terminals manufactured, sold, or managed by different companies in this way often have different communication methods, and thus will be described using the above example. As an example of two terminals with different communication methods, terminals manufactured or sold at the same company are terminals with a new manufacturing or sales period as “dedicated terminals” and terminals with an old manufacturing or sales period are “ It may be a “non-dedicated terminal”. In addition, a dual codec compatible terminal having a dedicated terminal function and a non-dedicated terminal function performs communication using the same encoding method as the counterpart terminal by activating either the dedicated terminal function or the non-dedicated terminal function. That is, by activating the dedicated terminal function, it is possible to communicate with the same encoding method as the dedicated terminal. By activating the non-dedicated terminal function, communication can be performed using the same encoding method as the non-dedicated terminal.

  Each relay device 30 is a computer system that relays call data among a plurality of terminals 10. The management system 50 is a computer system that centrally manages login authentication from the terminal 10, management of the operating state and call status of the terminal 10, management of a destination list, and communication status of the relay device 30. The image of the image data may be a moving image or a still image, or both a moving image and a still image.

  The program providing system 90 is a computer system that provides the terminal 10, the relay device 30, the management system 50, and the maintenance system 100 with the programs used by them via the communication network 2.

  The maintenance system 100 is a computer system for maintaining, managing, or maintaining at least one of the terminal 10, the relay device 30, the management system 50, and the program providing system 90. For example, when the maintenance system 100 is installed in the country and the terminal 10, the relay device 30, the management system 50, or the program providing system 90 is installed outside the country, the maintenance system 100 is remotely connected via the communication network 2. Maintenance such as maintenance, management, and maintenance of at least one of the terminal 10, the relay device 30, the management system 50, and the program providing system 90 is performed. In addition, the maintenance system 100 does not go through the communication network 2, but includes a model number, a manufacturing number, a sales destination, a maintenance check, at least one of the terminal 10, the relay device 30, the management system 50, and the program providing system 90. Or, maintenance such as failure history management is performed.

  Subsequently, a first communication pattern for realizing a call between the two terminals 10 will be described with reference to FIGS. 2 and 3. FIG. 2 is a conceptual diagram showing a communication state when a call is realized between call terminals having a dedicated terminal function. The terminal 10 includes a dedicated terminal, a non-dedicated terminal, and a dual codec terminal having a dedicated terminal function (an example of a first call function) and a non-dedicated terminal function (an example of a second call function). include. Here, the non-dedicated terminal indicates a terminal having a different call control scheme and encoding scheme from the dedicated terminal as described above. Further, the non-dedicated terminal function refers to a terminal function having the same call control method as that of the dedicated terminal function but having a different encoding method.

  Among these, the dedicated terminal and the terminal for which the dedicated terminal function is activated are exclusively used in the call system 1 that executes the first communication pattern, as shown in FIG. FIG. 2 shows a case where the request source terminal is a dual codec compatible terminal 10, the dedicated terminal function is being activated, and the destination terminal is a dedicated terminal.

  For example, the call system 1 uses a communication method in which the call control method is an instant messenger protocol (or a protocol obtained by extending the instant messenger protocol) and the encoding method is H.264 / SVC (Scalable Video Coding). Then, communication of call data is performed. Specifically, as shown in FIG. 2, in the call system 1, the management system for transmitting and receiving various types of management information between the request source terminal and the destination terminal via the management system 50. A communication session sei is established. The communication session sei is also a call control communication session.

  On the other hand, between the request source terminal in which the dedicated terminal function is activated and the relay device 30, the high resolution image data, the medium resolution image data, the low resolution image data, and the audio data 4 according to the SVC encoding method. A first communication session sed1 for a call for transmitting and receiving two call data is established. Further, between the relay device 30 and the destination terminal, four call data of high resolution image data, medium resolution image data, low resolution image data, and audio data are similarly transmitted and received by the SVC encoding method. A second communication session sed2 for calling is established.

  Here, the resolution of the image data handled in the first communication pattern shown in FIG. 2 will be described with reference to FIG. FIG. 3 is a conceptual diagram showing the image quality of image data transmitted and received according to the SVC standard in FIG.

  As shown in FIG. 3 (a), the horizontal image is composed of 160 pixels and the vertical image is 120 pixels, and a low-resolution image serving as a base image and a horizontal image as illustrated in FIG. 3 (b). A medium resolution image having 320 pixels and 240 pixels vertically and a high resolution image data having 640 pixels horizontally and 480 pixels vertically are transmitted and received as shown in FIG. Among these, in the case of passing through a narrow band route, low-quality image data consisting only of low-resolution image data serving as a base image is relayed by the relay device 30. When the band is relatively wide, the relay device 30 relays low-resolution image data serving as a base image and medium-quality image data including medium-resolution image data. When the bandwidth is very wide, high-resolution image data composed of low-resolution image data, medium-resolution image data, and high-resolution image data serving as base image quality is relayed by the relay device 30. .

  Next, a second communication pattern for realizing a call between the two terminals 10 will be described with reference to FIGS. 4 and 5. In addition, it is the conceptual diagram which showed the communication condition in the case of implement | achieving a call between the call terminals which have a non-dedicated terminal function.

  The non-dedicated terminal and the terminal in which the non-dedicated terminal function is activated are used exclusively in the call system 1 ′ that executes the second communication pattern, as shown in FIG. 4, and are shown in FIG. As described above, the call system 1 that executes the first communication pattern cannot be used because the communication method is different from the dedicated terminal and the dedicated terminal function. FIG. 4 shows a case where the request source terminal is a dual codec compatible terminal, the non-dedicated terminal function is being activated, and the destination terminal is a non-dedicated terminal.

  The call system 1 'is an instant messenger protocol (or a protocol obtained by extending the instant messenger protocol) in which the call control method of the requesting terminal is the same as the first communication pattern, and the encoding method is the first communication pattern. Unlike the above, the communication method of H.264 / AVC (Advanced Video Coding) is used to communicate call data. Specifically, as shown in FIG. 4, in the call system 1 ′, a management communication session sei1 is established between the request source terminal and the management system 50 for transmitting and receiving various types of management information. Has been. The communication session sei1 is also a call control communication session. Further, when the non-dedicated terminal function is activated in the request source terminal, the encoding method is changed from SVC to AVC.

  On the other hand, a communication session sei2 for call control of a non-dedicated terminal is established between the management system 50 and the destination terminal, and this call control method is different from that of the request source terminal. For example, SIP (Session Initiation Protocol) or H.323. In this case, since the call control method differs between the request source terminal and the destination terminal, the management system 50 converts the call control method. Specifically, when the request source terminal is activating the non-dedicated terminal function, the management system 50 converts the data related to the call control based on the conversion rule data used for converting the call control method. Then, call control is performed. Further, the encoding method of the destination terminal (non-dedicated terminal) is the same AVC as that of the request source terminal in which the non-dedicated terminal function is activated.

  A communication session sed for a call for transmitting / receiving call data is established between the request source terminal and the destination terminal. The communication session sed may be established directly between the request source terminal and the destination terminal, or may be established via a relay device.

  Here, the image resolution of the image data handled in the second communication pattern shown in FIG. 4 will be described with reference to FIG. FIG. 5 is a conceptual diagram showing the image quality of image data transmitted and received according to the AVC standard in FIG. As shown in FIG. 5, only one image data composed of 320 pixels in the horizontal direction and 240 pixels in the vertical direction is transmitted and received.

<< Hardware Configuration of Embodiment >>
Next, the hardware configuration of this embodiment will be described. FIG. 6 is an external view of the call terminal according to the present embodiment. As shown in FIG. 6, the terminal 10 includes a housing 1100, an arm 1200, and a camera housing 1300. Among them, the front side wall surface 1110 of the housing 1100 is provided with an air intake surface (not shown) formed by a plurality of air intake holes, and the rear side wall surface 1120 of the housing 1100 is formed with a plurality of exhaust holes. An exhaust surface 1121 is provided. As a result, by driving a cooling fan built in the housing 1100, the outside air behind the terminal 10 can be taken in via an intake surface (not shown) and exhausted to the rear of the terminal 10 via an exhaust surface 1121. A sound collecting hole 1131 is formed in the right wall surface 1130 of the housing 1100, and sounds such as voice, sound, noise can be collected by a built-in microphone 114 described later.

  An operation panel 1150 is formed on the right wall surface 1130 side of the housing 1100. The operation panel 1150 is provided with a plurality of operation buttons (108a to 108e) to be described later, a power switch 109 to be described later, and an alarm lamp 119 to be described later, and outputs sound from a built-in speaker 115 to be described later. A sound output surface 1151 formed by a plurality of sound output holes for passing through is formed. Further, a housing 1160 as a recess for housing the arm 1200 and the camera housing 1300 is formed on the left wall surface 1140 side of the housing 1100. The right side wall surface 1130 of the housing 1100 is provided with a plurality of connection ports (1132a to 1132c) for electrically connecting cables to an external device connection I / F 118 described later. On the other hand, the left wall surface 1140 of the housing 1100 is provided with a connection port (not shown) for electrically connecting the cable 120c for the display 120 to an external device connection I / F 118 described later.

  In the following description, “operation button 108” is used when an arbitrary operation button is indicated among the operation buttons (108a to 108e), and “an arbitrary connection port is indicated among the connection ports (1132a to 1132c)”. This will be described using the connection port 1132 ”.

  Next, the arm 1200 is attached to the housing 1100 via a torque hinge 1210, and the arm 1200 is configured to be able to rotate in the vertical direction with respect to the housing 1100 within a tilt angle θ1 of 135 degrees. ing. FIG. 6 shows a state where the tilt angle θ1 is 90 degrees. The camera housing 1300 is provided with a built-in camera 112 described later, and can capture images of users, documents, rooms, and the like. A torque hinge 1310 is formed in the camera housing 1300. The camera housing 1300 is attached to the arm 1200 via a torque hinge 1310. The camera housing 1300 is attached to the arm 1200 via a torque hinge 1310. The pan angle θ2 of ± 180 degrees is assumed with respect to the arm 1200, with the state shown in FIG. And a tilt angle θ3 of ± 45 degrees can be rotated in the vertical and horizontal directions.

  Note that the relay device 30, the management system 50, the program providing system 90, and the maintenance system 100 have the same external appearance as a general server computer, and thus the description of the external appearance is omitted.

  FIG. 7 is a hardware configuration diagram of the terminal according to the present embodiment. As shown in FIG. 7, the terminal 10 of the present embodiment has programs used for driving the CPU 101 such as a CPU (Central Processing Unit) 101 and an IPL (Initial Program Loader) that control the operation of the entire terminal 10. ROM (Read Only Memory) 102, RAM (Random Access Memory) 103 used as a work area of the CPU 101, flash memory 104 for storing various data such as programs for the terminal 10, image data, and audio data, the CPU 101 The SSD (Solid State Drive) 105 that controls the reading or writing of various data with respect to the flash memory 104 according to the above control, the media drive 107 that controls the reading or writing (storage) of data with respect to the recording medium 106 such as the flash memory, and the terminal 10 Is used to select a destination. Operation button 108, a power switch 109 for switching on / off the power of the terminal 10, and a network I / F (Interface) 111 for data transmission using the communication network 2.

  The terminal 10 also includes a built-in camera 112 that captures an image of a subject under the control of the CPU 101 to obtain image data, an image sensor I / F 113 that controls driving of the camera 112, a built-in microphone 114 that inputs sound, and sound. The built-in speaker 115 for outputting the sound, the sound input / output I / F 116 for processing the input / output of the sound signal between the microphone 114 and the speaker 115 according to the control of the CPU 101, and the image data on the external display 120 according to the control of the CPU 101. FIG. 5 shows a display I / F 117 for transmission, an external device connection I / F 118 for connecting various external devices, an alarm lamp 119 for notifying abnormality of various functions of the terminal 10, and the above-described components. A bus line 110 such as an address bus or a data bus is provided for electrical connection. To have.

  The display 120 is a display unit configured by liquid crystal or organic EL that displays an image of a subject, an operation, and the like. The display 120 is connected to the display I / F 117 by a cable 120c. The cable 120c may be an analog RGB (VGA) signal cable, a component video cable, or an HDMI (High-Definition Multimedia Interface) or DVI (Digital Video Interactive) signal. It may be a cable. HDMI is a registered trademark.

  The camera 112 includes a lens and a solid-state image sensor that converts an image (video) of an object by converting light into electric charges. As the solid-state image sensor, a CMOS (Complementary Metal Oxide Semiconductor) or a CCD (Charge Coupled Device) Etc. are used.

  The external device connection I / F 118 includes an external camera, an external microphone, an external speaker, and the like by a USB (Universal Serial Bus) cable or the like inserted into the connection port 1132 of the housing 1100 shown in FIG. Can be electrically connected to each other. When an external camera is connected, the external camera is driven in preference to the built-in camera 112 under the control of the CPU 101. Similarly, when an external microphone is connected or when an external speaker is connected, each of the external microphones and the built-in speaker 115 is given priority over the internal microphone 114 and the internal speaker 115 according to the control of the CPU 101. An external speaker is driven.

  The recording medium 106 is detachable from the terminal 10. Further, as long as it is a non-volatile memory that reads or writes data according to the control of the CPU 101, not only the flash memory 104 but also an EEPROM (Electrically Erasable and Programmable ROM) or the like may be used.

  FIG. 8 is a hardware configuration diagram of the management system according to this embodiment of the present invention. The management system 50 includes a CPU 201 that controls the overall operation of the management system 50, a ROM 202 that stores programs used to drive the CPU 201 such as an IPL, a RAM 203 that is used as a work area for the CPU 201, and various programs such as programs for the management system 50. HD 204 for storing data, HDD (Hard Disk Drive) 205 for controlling reading or writing of various data to the HD 204 according to control of the CPU 201, media for controlling reading or writing (storage) of data to a recording medium 206 such as a flash memory Drive 207, display 208 for displaying various information such as cursor, menu, window, character, or image, network I / F 209 for data communication using communication network 2, character A keyboard 211 having a plurality of keys for inputting numerical values and various instructions, a mouse 212 for selecting and executing various instructions, selecting a processing target, moving a cursor, etc., and a CD as an example of a removable recording medium A CD-ROM drive 214 for controlling reading or writing of various data to / from a ROM (Compact Disc Read Only Memory) 213, and an address for electrically connecting the above components as shown in FIG. A bus line 210 such as a bus or a data bus is provided.

  On the other hand, the relay device 30, the program providing system 90, and the maintenance system 100 have the same hardware configuration as that of the management system 50, and thus description thereof is omitted. However, each HD 204 stores various data such as a program for controlling the relay device 30, the program providing system 90, and the maintenance system 100.

  Note that each program for the terminal 10, the relay device 30, the program providing system 90, and the maintenance system 100 is a computer-readable recording medium (such as the recording medium 106) by an installable or executable file. May be recorded and distributed. Other examples of the recording medium include CD-R (Compact Disc Recordable), DVD (Digital Versatile Disk), and Blu-ray Disc.

<< Functional Configuration of Embodiment >>
Next, the functional configuration of this embodiment will be described. FIG. 9 is a functional block diagram of the terminal 10, the relay device 30, and the management system 50 that constitute a part of the call system 1 of the present embodiment. In FIG. 9, the terminal 10, the relay device 30, and the management system 50 are connected so that data communication can be performed via the communication network 2.

<Functional configuration of terminal>
The terminal 10 includes a transmission / reception unit 11, an operation input reception unit 12, a login request unit 13, an imaging unit 14, a voice input unit 15a, a voice output unit 15b, a display control unit 16, an activation unit 17, a destination list creation unit 18, and a storage. A read processing unit 19 is included. Each of these units is a function realized by any one of the constituent elements shown in FIG. 7 being operated by a command from the CPU 101 according to the program for the terminal 10 expanded from the flash memory 104 onto the RAM 103. Or means.

  Further, the terminal 10 has a storage unit 1000 constructed by the RAM 103 shown in FIG. 7 and the flash memory 104 shown in FIG. In the storage unit 1000, a visual information management DB (Data Base) 1001 configured by a visual information management table described later is constructed. Further, the storage unit 1000 stores a dedicated terminal application for realizing the dedicated terminal function in the terminal 10 and a non-dedicated terminal application for realizing the non-dedicated terminal function in the terminal 10.

(Visual information management table)
FIG. 10 is a conceptual diagram showing a visual information management table. In the visual information management table, visual information represented by a destination list displayed on the display 120 is managed in association with each operation state information indicating the operation state of the destination terminal. Each visual information is, for example, each icon in a form as shown in FIG. Each visual information constituting the visual information management table may be sent from the management system 50 when the request source terminal makes a login request in step S22 described later, or the storage unit 1000 before the request source terminal is shipped from the factory. May be stored.

  Note that the visual information of the present embodiment includes first visual information that visually indicates that the communication method used at the destination terminal is the communication method used at the request source terminal (dedicated terminal), and the destination terminal. It visually indicates that the communication method used is not the communication method used by the requesting terminal (dedicated terminal), and is classified into second visual information that is visually different from the first visual information. Among these, the first visual information includes visual information such as icons indicating that the operating state is online (can call), online (during a call), online (temporarily suspended), or offline.

  The second visual information is obtained when the requesting terminal activates the dedicated terminal function when communicating between the terminals 10 each having two functions of the dedicated terminal function and the non-dedicated terminal function, and the destination terminal Shows icons displayed on the display 120 on the request source terminal side when the non-dedicated terminal function is activated.

(Functional configuration of terminal)
Next, each functional configuration of the terminal 10 will be described in detail with reference to FIGS. 7 and 9. In the following, in describing each functional configuration of the terminal 10, a relationship with main components for realizing each functional configuration of the terminal 10 among the respective components illustrated in FIG. 7 will also be described. .

  The transmission / reception unit 11 of the terminal 10 shown in FIG. 9 is realized by a command from the CPU 101 shown in FIG. 7 and the network I / F 111 shown in FIG. Various data (or information) is transmitted / received to / from the terminal, device or system. The transmission / reception unit 11 starts receiving state information indicating the state of each terminal as a destination candidate from the management system 50 before starting a call with a desired destination terminal. This status information includes not only the operating status of each terminal 10 (online or offline status) but also whether it is possible to make a call even when online, whether a call is in progress, or is away from the desk. The detailed state of is shown. In addition, the status information is not limited to the operating status of each terminal 10, but the cable 120 c is disconnected from the terminal 10 at the terminal 10, audio is output but no image is output, or audio is not output. Various states such as (MUTE) are shown. The state information also includes a state in which the non-dedicated terminal function is being activated as described above. Below, the case where status information shows an operation state is demonstrated as an example.

  The operation input accepting unit 12 is realized by a command from the CPU 101 shown in FIG. 7 and the operation buttons 108 and the power switch 109 shown in FIG. 7, and accepts various inputs by the user. For example, when the user turns on the power switch 109 shown in FIG. 7, the operation input accepting unit 12 shown in FIG. 9 accepts power-on and turns on the power.

  The login request unit 13 is realized by a command from the CPU 101 shown in FIG. 7, and requests login from the transmission / reception unit 11 to the management system 50 via the communication network 2 when receiving the power-on. And the current IP address of the request source terminal are automatically transmitted. When the user turns the power switch 109 from the ON state to the OFF state, the operation input receiving unit 12 completely turns off the power after the transmission / reception unit 11 transmits the state information indicating that the power supply is turned off to the management system 50. To do. Thereby, the management system 50 side can grasp that the terminal 10 has been turned off from being turned on.

  The imaging unit 14 is realized by the instruction from the CPU 101 shown in FIG. 7 and the camera 112 and the imaging device I / F 113 shown in FIG. Output data.

  The voice input unit 15a is realized by the instruction from the CPU 101 shown in FIG. 7 and the voice input / output I / F 116 shown in FIG. 7, and the user's voice is converted into a voice signal by the microphone 114. Thereafter, audio data relating to the audio signal is input. The audio output unit 15b is realized by a command from the CPU 101 shown in FIG. 7 and the audio input / output I / F 116 shown in FIG. 7, and outputs an audio signal related to the audio data to the speaker. To output sound.

  The display control unit 16 is realized by the instruction from the CPU 101 shown in FIG. 7 and the display I / F 117 shown in FIG. 7, and combines received image data with different resolutions as described later. Control for transmitting the combined image data to the display 120 is performed. In addition, the display control unit 16 can transmit information on the destination list received from the management system 50 to the display 120 and cause the display 120 to display the destination list.

  In addition, the display control unit 16 extracts the corresponding visual information by searching the visual information management table (see FIG. 10) using the operating state information received from the management system 50 by the transmission / reception unit 11 as a search key. It is displayed in the destination list on the display 120 of the terminal 10.

  The activation unit 17 determines whether the transmission / reception unit 11 has received a call start request from another dedicated terminal (or another terminal in which the dedicated terminal function is activated). The activation unit 17 activates either the dedicated terminal function or the non-dedicated terminal function. Further, the activation unit 17 stops the dedicated terminal function or the non-dedicated terminal function that is being activated.

  Based on destination list information described later and the status information of the terminal 10 as each destination candidate received from the management system 50, the destination list creation unit 18 uses icons to indicate the status of destination candidates as shown in FIG. Create and update the indicated destination list.

  The storage / reading processing unit 19 is executed by the instruction from the CPU 101 shown in FIG. 7 and the instruction from the SSD 105 shown in FIG. 7 or realized by the instruction from the CPU 101, and stores various data in the storage unit 1000. Processing for reading various data stored in the unit 1000 is performed. The storage unit 1000 stores a terminal ID (Identification) for identifying the terminal 10, a password, and the like. Furthermore, the storage unit 1000 overwrites and stores image data and audio data received when a call is made with the destination terminal. Among these, an image is displayed on the display 120 by the image data before being overwritten, and sound is output from the speaker 115 by the audio data before being overwritten.

  Note that the terminal ID of the present embodiment and a relay device ID described later indicate identification information such as a language, characters, symbols, or various signs used to uniquely identify the terminal 10 and the relay device 30, respectively. Further, the terminal ID and the relay device ID may be identification information in which at least two of the language, characters, symbols, and various indicia are combined.

<Functional configuration of relay device>
The relay device 30 includes a transmission / reception unit 31 and a data quality change unit 32. Each of these units is a function realized by any of the constituent elements shown in FIG. 8 being operated by a command from the CPU 201 according to the program for the relay device 30 expanded from the HD 204 onto the RAM 203, or Means.

(Each functional configuration of the relay device)
Next, each functional configuration of the relay device 30 will be described in detail. In the following description, in describing each functional configuration of the relay device 30, among the components illustrated in FIG. 8, the relationship with the main components for realizing each functional configuration of the relay device 30 is also described. explain.

  The transmission / reception unit 31 of the relay device 30 shown in FIG. 9 is realized by the command from the CPU 201 shown in FIG. 8 and the network I / F 209 shown in FIG. Various data (or information) is transmitted / received to / from other terminals, devices or systems. Thereby, the relay device 30 relays the call data between the plurality of terminals 10.

  Further, the transmission / reception unit 31 instructs the destination indicated by the IP address of the requesting terminal among the IP addresses received by the transmission / reception unit 31 to start a communication session (first communication session sed1). Session start instruction information is transmitted. The transmission / reception unit 31 starts a session for instructing the destination indicated by the IP address among the IP addresses received by the transmission / reception unit 31 to start a communication session (second communication session). The instruction information and the IP address of the destination terminal are transmitted.

  The data quality changing unit 32 is realized by a command from the CPU 201 shown in FIG. 8, and changes the image quality of the image data sent from the transmission source terminal. As a result, even when there is a delay in receiving image data at the terminal 10 due to a mixture of the communication networks 2 or the like, the relay device 30 takes measures against the delay by reducing the image quality of the image data to be relayed. It can be carried out. For example, when there is a delay in receiving the image data, the delay is caused by interrupting the relay of the high-resolution image data (see FIG. 3C) among the three image quality image data shown in FIG. Take measures.

<Functional configuration of management system>
The management system 50 includes a transmission / reception unit 51, a terminal authentication unit 52, a state management unit 53, an extraction unit 54, a determination unit 55, a session management unit 56, a conversion unit 57, and a storage / read processing unit 59. Each of these units is a function realized by any one of the constituent elements shown in FIG. 8 being operated by an instruction from the CPU 201 according to the program for the management system 50 expanded from the HD 204 onto the RAM 203, or Means. Further, the management system 50 includes a storage unit 5000 constructed by the HD 204 shown in FIG. This storage unit 5000 stores destination list frame data, which will be described later, and conversion rule data used for converting the call control method.

(Relay device management table)
FIG. 11 is a conceptual diagram showing a relay device management table. In the storage unit 5000, a relay device management DB 5001 configured by a relay device management table as shown in FIG. 11 is constructed. In this relay device management table, for each relay device ID of each relay device 30, the operating status of each relay device 30, the reception date and time when status information indicating the operating status is received by the management system 50, and the IP address of the relay device 30 , And the maximum data call speed (Mbps) in the relay device 30 is managed in association with each other. For example, in the relay device management table shown in FIG. 11, the relay device 30a with the relay device ID “111a” is “online” in the operating state, and the date and time when the status information is received by the management system 50 is “2011”. "November 10, 13:00" indicates that the IP address of the relay device 30a is "1.2.1.2" and the maximum data call speed in the relay device 30a is 100 Mbps. Yes.

(Terminal authentication management table)
FIG. 12 is a conceptual diagram showing a terminal authentication management table. In the storage unit 5000, a terminal authentication management DB 5002 configured by a terminal authentication management table as shown in FIG. 12 is constructed. In this terminal authentication management table, an authentication password is associated with each terminal ID of all terminals 10 managed by the management system 50 and managed. For example, the terminal authentication management table shown in FIG. 12 indicates that the terminal ID of the terminal 10aa is “01aa” and the password is “aaaa”.

(Terminal status management table)
FIG. 13 is a conceptual diagram showing a terminal state management table. In the storage unit 5000, a terminal state management DB 5003 configured by a terminal state management table as shown in FIG. 13 is constructed. In this terminal status management table, for each terminal ID of each terminal 10, the destination name when each terminal 10 is the destination, the operating status of each terminal 10, and the reception date and time when the log-in request information described later was received by the management system 50 , And the IP address of the terminal 10 are managed in association with each other. For example, in the terminal status management table shown in FIG. 13, the terminal 10aa with the terminal ID “01aa” has the terminal name “Japan Tokyo Office AA terminal” and the operating status “online (call possible)”. The date and time when the login request information is received by the management system 50 is “11:40 on November 10, 2011”, and the IP address of this terminal 10aa is “1.2.1.3”. Has been.

  However, the terminal status management table manages terminal information including the terminal ID, terminal name, operating status, reception date and time, and IP address of the non-dedicated terminal 10 (that is, a terminal having a dedicated terminal function and a terminal other than the dedicated terminal). It is not managed because it is out of scope.

(Destination list management table)
FIG. 14 is a conceptual diagram showing a destination list management table. In the storage unit 5000, a destination list management DB 5004 configured by a destination list management table as shown in FIG. 14 is constructed. In this destination list management table, all terminal IDs of destination terminals registered as destination terminal candidates are managed in association with terminal IDs of request source terminals that request the start of a call. For example, in the destination list management table illustrated in FIG. 14, a destination terminal candidate that can request the start of a call from a request source terminal (terminal 10aa) whose terminal ID is “01aa” is a terminal ID “ The terminal 10ab is “01ab”, the terminal 10ba is “01ba” as the terminal ID, the terminal 10bb is “01bb” as the terminal ID, and the like. This destination terminal candidate is updated by being added or deleted in response to a request for addition or deletion from an arbitrary request source terminal to the management system 50. Similar to the terminal status management table, in the destination list management table (see FIG. 14), the terminal IDs of non-dedicated terminals are not managed and are not managed.

(Session management table)
FIG. 15 is a conceptual diagram showing a session management table. In the storage unit 5000, a session management DB 5005 configured by a session management table as shown in FIG. 15 is constructed. In this session management table, the relay device ID of the relay device 30 used for relaying call data (image data and voice data), the terminal ID of the request source terminal, the terminal ID of the destination terminal, and the image data are received at the destination terminal. The reception delay time (ms) and the reception time and date received from the destination terminal after receiving the delay time information indicating the delay time from the destination terminal are managed in association with each other.

  For example, in the session management table shown in FIG. 15, the relay device 30a (relay device ID “111a”) has a request source terminal (terminal 10aa) with a terminal ID “01aa” and a terminal ID “01ca”. Image data and audio data are relayed with the destination terminal (terminal 10ca), and the delay time of the image data at the time of “14:00 on November 10, 2011” at the destination terminal (terminal 10ca). It is shown that it is 200 (ms). When a call is made between the two terminals 10, the reception date and time of the delay time information may be managed based on the delay time information transmitted from the request source terminal instead of the destination terminal. However, when a call is made between three or more terminals 10, the reception date and time of delay time information is managed based on the delay time information transmitted from the terminal 10 on the image data and audio data receiving side. .

(Functional configuration of the management system)
Next, each functional configuration of the management system 50 will be described in detail. In the following, in describing each functional configuration of the management system 50, among the components shown in FIG. 8, the relationship with the main components for realizing each functional configuration of the management system 50 is also described. explain.

  The transmission / reception unit 51 is executed by the instruction from the CPU 201 shown in FIG. 8 and the network I / F 209 shown in FIG. Or information).

  The terminal authentication unit 52 is realized by a command from the CPU 201 illustrated in FIG. 8 and manages terminal authentication using the terminal ID and password included in the login request information received via the transmission / reception unit 51 as search keys. A table (see FIG. 12) is searched, and terminal authentication is performed by determining whether the same terminal ID and password are managed in this terminal authentication management table.

  The state management unit 53 is realized by a command from the CPU 201 shown in FIG. 8 and stores the request source in the terminal state management table (see FIG. 13) in order to manage the operating state of the request source terminal that has requested login. The terminal ID of the terminal, the operation state of the request source terminal, the reception date and time when the login request information is received by the management system 50, and the IP address of the request source terminal are stored and managed in association with each other. In addition, the state management unit 53 determines the terminal state based on the state information sent from the terminal 10 to turn off the power when the user turns the power switch 109 of the terminal 10 from on to off. The operating state indicating online in the management table (see FIG. 13) is changed to offline.

  The extraction unit 54 is realized by an instruction from the CPU 201 shown in FIG. 8, searches each management DB built in the storage unit 5000 by various search keys, and stores data (information) corresponding to the search key. Extract as search results.

  For example, the extraction unit 54 searches the destination list management table (see FIG. 14) using the terminal ID of the request source terminal that requested the login as a key, and sets the terminal IDs of candidate destination terminals that can talk to the request source terminal. Extract. Further, the extraction unit 54 searches the terminal state table (see FIG. 13) using the terminal ID of the destination terminal candidate as a search key, and extracts the operating state for each terminal ID. Thereby, the extraction unit 54 can acquire the operating state of the candidate destination terminal that can talk to the request source terminal that has requested the login.

  Further, the extraction unit 54 searches the destination list management table (see FIG. 14) using the terminal ID of the request source terminal that requested the login as a key, and registers the terminal ID of the request source terminal as a destination terminal candidate. The terminal IDs of other request source terminals are also extracted. Further, the extraction unit 54 searches the terminal state management table (see FIG. 13) using the terminal ID as a search key, and also acquires the operating state of the request source terminal that requested the login.

  Further, the extraction unit 54 extracts the IP address of the corresponding terminal 10 by searching the terminal state management table (see FIG. 13) using the terminal ID of the terminal 10 received by the transmission / reception unit 51 as a search key. In addition, the extraction unit 54 extracts a corresponding terminal ID by searching the terminal state management table (see FIG. 13) using the IP address of the destination terminal as a search key.

  Subsequently, the determination unit 55 determines whether or not the operating state indicated by the operating state information is “online”, which is realized by a command from the CPU 201 illustrated in FIG. 8. Further, the determination unit 55 determines that the operating state information can be transmitted to the predetermined terminal 10 when determining “online”, and determines that the predetermined terminal is not “online”. 10, it is determined that the operating state information cannot be transmitted.

  The session management unit 56 is realized by a command from the CPU 201 shown in FIG. 8 and is stored in the session management table (see FIG. 15) of the storage unit 5000 in the relay device ID of the relay device 30 used for relaying call data. The terminal ID of the request source terminal, the terminal ID of the destination terminal, the reception delay time (ms) when the image data is received at the destination terminal, and the delay time information indicating this delay time are sent from the destination terminal. The received date and time received by the management system 50 is stored and managed in association with each other. The session management unit 56 creates a session ID used for establishing a communication session.

  When the operation state corresponding to the terminal ID of the request source terminal indicates that the non-dedicated terminal function is activated in the terminal state management table, the conversion unit 57 calls the call according to the conversion rule data stored in the storage unit 5000 in advance. The control is executed to mutually convert the call control method transmitted from the request source terminal and the call control method transmitted from the destination terminal.

  The storage / read processing unit 59 is executed by the instruction from the CPU 201 shown in FIG. 8 and the HDD 205 shown in FIG. 8, and stores various data in the storage unit 5000 or stored in the storage unit 5000. To read various data.

<< Processing or Operation of Embodiment >>
Next, the case where the terminal 10 having the dedicated terminal function and the non-dedicated terminal function is a request source terminal will be described with reference to FIGS. 6, 9, and 16 to 20. FIG. 16 is a sequence diagram showing a call start request.

  As shown in FIG. 16, first, when the user of the requesting terminal (terminal 10aa) compatible with the dual codec turns on the power switch 109 shown in FIG. 6, it is shown in FIG. The operation input receiving unit 12 receives power on and turns on the power (step S21). The login request unit 13 automatically transmits login request information indicating a login request from the transmission / reception unit 11 to the management system 50 via the communication network 2 when the power-on is received (step S22). The login request information includes a terminal ID for identifying the terminal 10aa that is a request source terminal, and a password. These terminal ID and password are data read from the storage unit 1000 via the storage / read processing unit 19 and sent to the transmission / reception unit 11. When the login request information is transmitted from the request source terminal (terminal 10aa) to the management system 50, the management system 50 that is the receiving side can grasp the IP address of the terminal 10aa that is the transmitting side.

  Next, the terminal authentication unit 52 of the management system 50 searches the terminal authentication management table (see FIG. 12) using the terminal ID and password included in the login request information received via the transmission / reception unit 51 as search keys. Then, terminal authentication is performed by determining whether the same terminal ID and the same password are managed in this terminal authentication management table (step S23). Since the same terminal ID and the same password are managed by the terminal authentication unit 52, when it is determined that the login request is from the terminal 10 having a valid use authority, the state management unit 53 In the terminal status management table (see FIG. 13), for each record indicated by the terminal ID and destination name of the terminal 10aa, the operation status, the reception date and time when the login request information is received, and the IP address of the terminal 10aa are stored in association with each other. (Step S24). As a result, the terminal status management table includes the terminal ID “01aa” and the destination name, the operation status “online”, the reception date and time “2011.11.10.13:40”, and the terminal IP address “1.2.1. 3 "will be managed in association with each other.

  Then, the transmission / reception unit 51 of the management system 50 sends the authentication result information indicating the authentication result obtained by the terminal authentication unit 52 via the communication network 2 to the request source terminal (terminal 10aa) that made the login request. (Step S25). In the present embodiment, the case where the terminal authentication unit 52 determines that the terminal has a valid usage right will be described below.

  The extraction unit 54 of the management system 50 searches the destination list management table (see FIG. 14) based on the terminal ID “01aa” of the request source terminal (terminal 10aa) that requested the login, thereby obtaining the request source terminal (terminal The terminal IDs of other requesting terminals that have registered the terminal ID “01aa” of 10aa) as the destination terminal candidates are extracted (step S26). Here, for simplification of description, the case where the terminal ID extracted in step S26 is the terminal ID “01ba” of the terminal 10ba will be described below.

  Next, the extraction unit 54 of the management system 50 searches the terminal state management table (see FIG. 13) using the terminal ID “01aa” of the request source terminal (terminal 10aa) that has made the login request as a search key, The operating state of the request source terminal (terminal 10aa) that has requested login is extracted (step S27).

  Next, the transmission / reception unit 51 includes, for the terminal 10ba, the terminal ID “01aa” of the request source terminal (terminal 10aa) and the operation state information indicating the operation state of the request source terminal (terminal 10aa). “Terminal status information” is transmitted (step S28). Thereby, the transmission / reception unit of the terminal 10ca receives the state information of the terminal. Therefore, in the terminal 10ba, a destination list reflecting the latest operating state of the terminal 10aa is created and displayed on the display 120ba, similarly to the process in step S28 described later.

  On the other hand, in the request source terminal (terminal 10aa), the selection process of either the dedicated terminal function or the non-dedicated terminal function is performed (step S29). Here, the function selection process will be described in more detail with reference to FIG. FIG. 17 is a flowchart showing processing for selecting a dedicated terminal function or a non-dedicated terminal function.

  First, the display control unit 16 of the request source terminal (terminal 10aa) displays the function selection screen 900 on the display 120aa as shown in FIG. 18 (step S29-1). FIG. 18 is a conceptual diagram showing a call function selection screen. As shown in FIG. 18, the function selection screen 900 includes a function selection icon 910 (an example of a first icon) for activating a dedicated terminal function and a function selection for activating a non-dedicated terminal function. An icon 920 (an example of a second icon) is displayed in parallel. An end icon 990 for ending the function selection process is displayed on the lower right side of the function selection screen 900.

  Next, the operation input receiving unit 12 of the request source terminal (terminal 10aa) determines whether the function selection icon 910 or the function selection icon 920 shown in FIG. S29-2). If it is determined in step S29-2 that no icon is selected, the transmission / reception unit 11 further receives another dedicated terminal (or another terminal in which the dedicated terminal function is activated) from It is determined whether a call start request has been accepted (step S29-3). If it is determined in step S29-3 that a call start request has not been received (NO), the process returns to step S29-1. On the other hand, if it is determined in step S29-3 that a call start request has been received (YES), the activation unit 17 activates the dedicated terminal function (step S29-4). Thereby, terminal 10aa can start a telephone call as a dedicated terminal.

  If it is determined in step S29-2 that either the function selection icon 910 or the function selection icon 920 has been selected, the operation input receiving unit 12 further activates a dedicated terminal function. It is determined whether or not the selection icon 910 has been selected (step S29-5). If it is determined in step S29-5 that the function selection icon 910 has been selected, the activation unit 17 activates the dedicated terminal function (step S29-6). In this case, the terminal 10aa can start a call as a dedicated terminal through steps S41 to S49 described later.

  On the other hand, if it is determined in step S29-5 that the function selection icon 910 has not been selected (the function selection icon 920 has been selected), the transmission / reception unit 11 of the request source terminal (terminal 10aa) Terminal status information indicating that the non-dedicated terminal function is being activated is transmitted to the system 50 (step S29-7). With this transmission, the management system 50 updates the operating state of the terminal ID corresponding to the terminal 10aa in the terminal state management table to a state indicating that the non-dedicated terminal function is being activated. In addition, the activation unit 17 of the request source terminal (terminal 10aa) activates the non-dedicated terminal function (step S29-8). However, when the request source terminal (terminal 10aa) operates as a non-dedicated terminal, a destination list described later as shown in FIG. 20 is not displayed, so that the user can specify the destination terminal. It is necessary to input address information (for example, an IP address) that can identify the location of the address. Therefore, for example, when the user inputs the IP address of a destination terminal (non-dedicated terminal), the operation input reception unit 12 receives a destination designation (step S29-9). Thereby, the request source terminal (terminal 10aa) can start a call as a non-dedicated terminal.

  More specifically, the request source terminal sends a call start request addressed to the input IP address to the management system 50, and the management system 50 indicates that the operation status of the terminal ID of the request source terminal in the terminal status management table is Since the non-dedicated terminal function is activated, the received call start request is converted by the conversion unit 57 into data according to the conversion data rule (that is, according to the call control method of the non-dedicated terminal). . The converted call start request is transmitted to the destination terminal (non-dedicated terminal) based on the IP address received from the management system 50. The destination terminal (non-dedicated terminal) that has received the call start request responds to the management system 50 if the call can be made, and the management system 50 converts it according to the conversion data rule in the same manner as the call start request. The response is transferred to the request source terminal. With this series of call control processing, a communication session sed can be established between the request source terminal and the destination terminal as shown in FIG. In the case of FIG. 4, since the request source terminal is activating the non-dedicated terminal function, the same AVC encoding method as that of the destination terminal (non-dedicated terminal) is used.

  In step S29-9, the user inputs the IP address. However, the location information such as the IP address of the non-dedicated terminal is stored in advance in the terminal 10 so that the user can select it. May be.

  Next, processing from the processing in step S29-6 shown in FIG. 17 to the start of a call will be described with reference to FIGS. FIG. 19 is a flowchart showing processing for displaying a destination list. FIG. 20 is a conceptual diagram showing a destination list.

  First, in the request source terminal (terminal 10aa), when the authentication result information indicating the result determined to be a terminal having a valid use authority is received in step S25, the transmission / reception unit 11 passes through the communication network 2. Then, destination list request information indicating that a destination list is requested is transmitted to the management system 50 (step S41). Thereby, the transmission / reception unit 51 of the management system 50 receives the destination list request information.

  Next, the extraction unit 54 of the management system 50 searches the destination list management table (see FIG. 14) using the terminal ID “01aa” of the request source terminal (terminal 10aa) that requested the login as a search key, and requests the request source terminal ( The terminal IDs of candidate destination terminals that can communicate with the terminal 10aa) are extracted, and the terminal state management table (see FIG. 13) is searched using this terminal ID as a search key, and the corresponding destination name information is extracted. (Step S42). Here, for simplification of explanation, a case where each terminal ID of the terminal 10ab as the dedicated terminal A, the terminal 10ba, the terminal 10ca, the terminal 10cb, etc. is extracted as the destination terminal candidate terminal 10 will be described below. To do.

  Next, the extraction unit 54 reads the data of the destination list frame from the storage unit 5000 (step S43). Then, the transmission / reception unit 51 sends “destination list information (destination list frame, terminal ID, destination name)” including the destination list frame and the terminal ID and destination name information extracted in step S42, to the request source terminal (terminal 10aa) (step S44). Thereby, in the request source terminal (terminal 10aa), the transmission / reception unit 11 receives the destination list information.

  Next, the storage / read processing unit 19 of the request source terminal (terminal 10aa) stores the destination list information in the storage unit 1000 (step S45).

  As described above, in the present embodiment, the destination list information is not managed by each terminal 10, but the management system 50 centrally manages the destination list information of all terminals. Therefore, a new terminal 10 is used in the call system 1, a new model terminal 10 is included instead of the terminal 10 already used, and the appearance of the destination list frame is changed. Even in such a case, since the management system 50 handles all at once, the trouble of changing the destination list information on each terminal 10 side can be saved.

  On the management system 50 side, the extraction unit 54 extracts the operating state of the destination terminal candidate terminal 10 (step S46).

  Next, the transmission / reception unit 51 includes the terminal ID “01ca” as the search key used in step S42 and the operating state “online (call possible)” of the corresponding destination terminal (terminal 10ca). The “terminal status information” is transmitted to the request source terminal (terminal 10aa) via the communication network 2 (step S47). The transmission / reception unit 51 may transmit “terminal state information” indicating the terminal ID of the request source terminal (terminal 10aa) and the operating state to the request source terminal (terminal 10aa).

  Next, the storage / read processing unit 19 of the request source terminal (terminal 10aa) sequentially stores the terminal status information received from the management system 50 in the storage unit 1000 (step S48). Therefore, the request source terminal (terminal 10aa) can acquire the current operating state of the other terminal 10 that can communicate with the request source terminal (terminal 10aa) by receiving the status information of each terminal. it can.

  Next, the destination list creation unit 18 of the request source terminal (terminal 10aa) reflects the status of the terminal 10 as a destination candidate based on the destination list information stored in the storage unit 1000 and the status information of the terminal. The destination list 2100 is created, and the display control unit 16 displays the destination list 2100 as shown in FIG. 20 on the display 120aa shown in FIG. 1 (step S49). Further, in order to reflect the state of the terminal 10 in the destination list, the following process is performed. That is, the destination list creation unit 18 extracts the corresponding visual information by searching the visual information management table (see FIG. 10) based on the terminal operating state information included in the terminal state information. Then, the destination list creation unit 18 assigns the extracted visual information to the destination list frame in the destination list information for each terminal ID and destination name in the destination list information. In FIG. 20, the operating states of four destination candidates (2110, 2120, 2130, 2140) are represented by icons as an example of visual information. As a result, the user can recognize the operating state of the destination candidate before starting the call.

  Note that a return icon 2300 (an example of a third icon) for returning to the function selection screen 900 shown in FIG. 18 is displayed below the destination list 2100. In addition, a scroll bar 2200 is displayed on the right side of the destination list 2100. When the user moves the scroll bar 2200 up and down, the visual information displayed in the destination list moves up and down. .

<< Main effects of this embodiment >>
As described above, according to the present embodiment, there is an effect that a plurality of types of call functions using communication systems having the same call control system and different encoding systems can be used properly.

<< Supplement of Embodiment >>
In the above embodiment, the selection of two types of functions has been described as shown in FIG. 18, but the present invention is not limited to this, and three or more types of functions may be selected.

Moreover, although the said embodiment demonstrated the icon which the video conference terminal as an example of a call terminal displays on the display 120 in FIG.18 and FIG.20, as shown in FIG.21 and FIG.22, a smart phone ( A terminal 10 ′ such as a Smartphone) may display various icons on the display 120 ′. FIG. 21 is a conceptual diagram illustrating another example of the function selection screen. FIG. 22 is a conceptual diagram showing another example of the destination list.
21 and 22, the terminal 10 ′, the operation button 108 ′, the microphone 114 ′, the speaker 115 ′, the display 120 ′, the function selection icon 910 ′, and the function selection icon 920 ′ are respectively connected to the terminal 10 , Operation button 108, microphone 114, speaker 115, display 120, function selection icon 910, and function selection icon 920.

  Further, in FIG. 22, the destination list 2100 ′, destination candidates (2110 ′, 2120 ′, 2130 ′, 2140 ′), scroll bar 2200 ′, and return icon 2300 ′ are the destination list 2100 and destination candidates in the video conference terminal, respectively. (2110, 2120, 2130, 2140), scroll bar 2200, and back icon 2300.

  In addition, the various icons shown in FIGS. 10, 18 and 20 may include characters and symbols in the pictorial symbols as well as pictorial symbols.

  Furthermore, in the above-described embodiment, transmission / reception of image data and audio data has been described, but the present invention is not limited to this. Only audio data may be transmitted and received. In this case, the merit of the videophone cannot be utilized, but a conference only by a call is possible like a normal phone.

  In addition, the relay device 30, the management system 50, the program providing system 90, and the maintenance system 100 in the above embodiment may be constructed by a single computer, or each unit (function or means) is divided and arbitrarily assigned. It may be constructed by a plurality of computers. In addition, when the program providing system 90 is constructed by a single computer, the program transmitted by the program providing system 90 may be transmitted by dividing it into a plurality of modules. It may be transmitted. Further, when the program providing system 90 is constructed by a plurality of computers, a plurality of modules may be divided and transmitted from each computer.

  In addition, a recording medium such as a CD-ROM in which each program of the above embodiment is stored, an HD 204 in which these programs are stored, and a program providing system 90 including the HD 204 are all program products. Can be provided domestically or abroad.

  11, FIG. 13 and FIG. 15 manage the reception date and time, but the present invention is not limited to this, and at least the reception time of the reception date and time may be managed.

  Further, in the above embodiment, the IP address of the relay device is managed in FIG. 11 and the IP address of the terminal in FIG. 13, but the present invention is not limited to this. FQDNs (Fully Qualified Domain Names) may be managed as long as they are destination information for identifying the terminal 10 on the communication network 2. In this case, an IP address corresponding to the FQDN is acquired by a known DNS (Domain Name System) server.

  In the above embodiment, the case of the video conference system has been described as an example of the call system 1. However, the present invention is not limited to this, and may be a telephone system such as an IP (Internet Protocol) telephone or an Internet telephone. . Further, the call system 1 may be a car navigation system. In this case, for example, one of the terminals 10 corresponds to a car navigation device mounted on a car, and the other of the terminals 10 is mounted on a management terminal or management server of a management center that manages car navigation, or another car. This corresponds to a car navigation device. The call system 1 may be a mobile phone communication system. In this case, for example, the terminal 10 corresponds to a mobile phone.

  In the above embodiment, image data and audio data have been described as an example of call data. However, the present invention is not limited to this, and touch data may be used. In this case, the sense that the user touched on one terminal side is talked to the other terminal side. Furthermore, the call data may be smell data. In this case, the odor (smell) on one terminal side is communicated to the other terminal side. Call data may be at least one of image data, audio data, tactile data, and olfactory data.

  In the above embodiment, the case where a video conference is performed by the call system 1 has been described. However, the present invention is not limited to this, and a general conversation such as a meeting, a family or a friend, or information in one direction is performed. It may be used for presentation.

  6 is merely an example, and may be a smartphone, a tablet terminal, a mobile phone, or a general-purpose PC. The microphone and camera are not necessarily built-in, and may be externally attached.

2 and 4, the call control method of the requesting terminal is an instant messenger protocol (or a protocol obtained by extending the instant messenger protocol), and in FIG. 4, the call control method of the destination terminal is SIP (Session Initiation). Protocol) or H.323, but is merely an example, and other call control schemes described above may be used.

DESCRIPTION OF SYMBOLS 1 Call system 10 Call terminal 11 Transmission / reception part (an example of a transmission means, an example of a reception means)
12 Operation input accepting unit (an example of accepting means)
16 Display control unit (an example of display control means)
17 Starter (an example of starter)
18 Destination List Creation Unit 30 Relay Device 50 Call Management System 90 Program Providing System 100 Maintenance System 910 Function Selection Icon (Example of First Icon)
920 function selection icon (example of second icon)
1000 storage unit 1001 visual information management DB (an example of visual information management means)
2300 Back icon (example of third icon)
5000 storage unit (an example of storage means)
5001 Relay device management DB
5002 Terminal authentication management DB
5003 Terminal state management DB
5004 Destination list management DB
5005 Session management DB

JP 2008-227577 A JP 2001-326972 A

Claims (7)

A first call is made using a predetermined call control method for connecting or disconnecting a call destination to a predetermined display means and a predetermined encoding method for converting call data into IP packets. A first icon for accepting selection of a call function, and a second icon for accepting selection of a second call function having the same call control method as the first call function but different in the encoding method Display control means for displaying a function selection screen showing
Receiving means for receiving selection of the first icon or the second icon;
Activating means for activating the first call function when the selection of the first icon is accepted, or activating the second call function when the selection of the second icon is accepted;
A telephone terminal characterized by comprising:   When a request for starting a call made using the first call function is received from another call terminal having the first call function before the selection is accepted by the accepting unit, The call terminal according to claim 1, wherein the activation means activates the first call function.   When the selection of the second icon is accepted by the accepting means, an operation state indicating that the second call function is being activated to a call management system that manages the operation state of the call terminal The call terminal according to claim 1, further comprising a transmission unit configured to transmit information. The display control means causes the predetermined display means to display a destination list indicating the operation status of the destination candidates and to display the function selection screen on the display means on the destination list. 3 icon is displayed,
The accepting means accepts selection of the third icon;
2. The call terminal according to claim 1, wherein when the selection of the third icon is accepted, the display control unit displays the function selection screen on the display unit.   The call terminal according to any one of claims 1 to 4, wherein the call data includes at least voice data. A first call is made using a predetermined call control method for connecting or disconnecting a call destination to a predetermined display means and a predetermined encoding method for converting call data into IP packets. A first icon for accepting selection of a call function, and a second icon for accepting selection of a second call function having the same call control method as the first call function but different in the encoding method A display control step for displaying an icon;
An accepting step of accepting selection of the first icon or the second icon;
An activation step of activating the first call function when accepting selection of the first icon, or activating the second call function when accepting selection of the second icon;
The call function starting method characterized by performing.   A program that causes a computer to execute the steps according to claim 6.