JPH11341051A - Communication system and medium converting method in communication system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a communication system capable of adapting to all receiving terminals having a communication line controlling function even when there is no interchangeability by executing medium conversion corresponding to the time/places of all the terminals having the communication line controlling function by utilizing a schedule management application to be used for normal businessmen and to provide also a medium conversion method in the system. SOLUTION: A transmitting terminal has a medium converting communication control part 101 requesting/receiving schedule information to/from a server, a receiver's information managing part 103 for extracting the address of a receiving terminal and a usable medium from the schedule information received from the server, a medium conversion part 106 for converting the usable medium of the receiving terminal based on the extracted information and an input medium, and a communication setting/converting part 118 for transferring conversion data to a line control part 102.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication system and a media conversion method in the communication system. More specifically, the present invention relates to communication between a terminal that does not implement standardization in a communication protocol in line calling and media transmission / reception of a terminal device. The present invention relates to a communication system suitable for providing a means for performing the method and a media conversion method in the communication system.

[0002]

2. Description of the Related Art At present, PHS (Personal Handy-phone)
System: Simple mobile phones and cellular phones (telephones that use a wireless communication system that divides a large area into cells and places base stations in one cell to perform wireless communication), as well as office environments. In various places, various mobile environments using radio are maintained. Due to this trend, wireless mobile terminals that transmit and receive e-mails and files using wireless have been marketed. In addition, using the above wireless portable terminal, for example, in an office environment, it is possible to communicate various information not only on his own desk but also in a place such as a conference room or on the move when going out, which is more efficient. Work environment is beginning to be developed.

However, a user who uses a mobile environment does not always use the same terminal everywhere, but uses a terminal such as a notebook personal computer (notebook personal computer) in a certain place and a mobile phone in a certain place. Is often used properly. in this case,
Although it is possible to set up a communication protocol according to the environment of the communication partner using a PC card I / F which is a general-purpose I / F (interface) in a notebook personal computer, a user who has only a mobile phone Receives email or file data from outside,
No means available. In addition, it is troublesome to adapt the notebook personal computer to the environment of the other party every time.

[0004] In order to solve the above problems,
The transmitting terminal needs to perform communication in consideration of the receiving terminal.
For this purpose, the transmitting terminal needs to recognize the media currently available to the receiving terminal, and means for converting the media created by the transmitting terminal into media usable by the receiving terminal according to the state (hereinafter, “media”). Conversion)
Must be used.

Here, the above-mentioned media conversion will be briefly described. Media conversion refers to speech recognition, speech synthesis, OCR (Opt
icalCharactor Recognition)
This function converts various input (transmission) data such as voice / data into data according to the needs of the user (receiving terminal). By this means, for example, text data is converted into voice data (using a voice synthesis function),
Convert voice data to text data (using voice recognition function), or convert image data to text data (OC
R function) or media conversion. In addition, since the transmitting terminal automatically performs the terminal capability (recognition of available media) of the receiving terminal, the user using the transmitting terminal can perform communication without being caught by compatibility regarding media.

[0006] In this field, various proposals have been made even with the current technology, and in many cases, media conversion is realized mainly by giving an application in an electronic mail environment a feature. For example, it has a management unit that specifies the other party's available media status to the transmission terminal in advance, and when actually performing communication, the application uses the information of the management unit to determine the available media of the reception terminal. There is a system environment in which after recognizing and performing media conversion, it is made to correspond to an e-mail format and communicate.

[0007] On the other hand, there is a proposal to make the server perform media conversion. For example, the transmitting terminal transmits media data unaware of the receiving terminal to the server, and the server holds the media data as it is until the receiving terminal accesses the media data. Next, when the receiving terminal accesses the server,
The server identifies the media that can be used by the receiving terminal using a line connection protocol with the receiving terminal, converts the original media data received from the transmitting terminal into the usable media, and transmits the media to the receiving side. Such a system has also been proposed.

[0008]

As described above, the above-described media conversion is conventionally used in various systems, but there are many problems in the above-mentioned systems. For example, first, there is a method in which an e-mail application is used as a communication format.
l Computer is not a problem, but it is an unfavorable environment for terminals that do not have an e-mail application. Therefore, the first problem is to propose a media conversion communication system that can be applied to all communication terminals.

On the other hand, when the receiving terminal accesses the server, the server uses the line connection protocol with the receiving terminal to identify the media that can be used by the receiving terminal. In the case of a terminal such as a mobile phone having no function, it is impossible to realize this system. Therefore, a second problem is to propose a media conversion communication system that can perform communication without a receiving terminal having a function of accessing a server.

[0010] In addition, although some proposals have been made to realize media conversion, most of the media conversion portions have characteristics, so that a system configuration using the function is used for communication. There have been few proposals for control schemes, and many lack actual feasibility. Therefore, the third issue is to clarify the communication control part regarding the media conversion.

[0011] The present invention has been made in view of the above-mentioned point, and uses the schedule management application used by ordinary businessmen for all terminals having a communication line control function. Provided are a communication system and a media conversion method in a communication system that can perform adaptation to all receiving terminals having a communication line control function even if they are incompatible by performing media conversion according to a place. The purpose is to:

[0012]

According to one aspect of the present invention, there is provided a communication system having a transmitting terminal, a receiving terminal, and a server for managing a schedule of the receiving terminal on a network. The transmitting terminal
The server comprising: a media conversion unit configured to convert the available media of the reception terminal extracted from the schedule information of the reception terminal received from the server based on the input medium; and a communication control unit configured to transmit the conversion information to the reception terminal. Means for searching for available terminal capabilities of the receiving terminal based on a request from the transmitting terminal from a schedule including available terminal capabilities of the receiving terminal for a predetermined period registered in advance, and transmitting search information to the transmitting terminal And a capability transmitting means.

[0013] In order to achieve the above object, an invention according to claim 2 is a communication system having a transmitting terminal, a receiving terminal, and a server for managing the schedule of the receiving terminal on a network. Media input means for inputting at least one or more media; communication control means for making a line connection with a server to request / receive schedule information of a receiving terminal; and transmission line control means for controlling a line connection. Communication protocol means for realizing a communication protocol by linking the communication control means and the transmission-side line control means, extraction means for extracting the destination and available media of the receiving terminal from the receiving terminal schedule information received from the server, Based on the extracted information and the media input from the input means, the available media of the receiving terminal is converted into a predetermined conversion function program. Media conversion means for converting using a protocol, and transfer means for transferring the conversion information to the transmission-side line control means based on the destination of the receiving terminal, wherein the server controls the line connection. Means,
A schedule management unit in which a schedule including a usable terminal capability of the receiving terminal for a predetermined period is registered; and a capability searching unit for searching the available terminal capability of the receiving terminal from the schedule managing unit based on a request from the transmitting terminal. ,
And a capability transmitting unit for transmitting search information to the server-side line control unit.

In order to achieve the above object, a third aspect of the present invention is characterized in that the media input means of the transmitting terminal is means for inputting image data and encoding image data.

In order to achieve the above object, the invention according to claim 4 is characterized in that the media input means of the transmitting terminal is means for inputting audio data and encoding audio data.

In order to achieve the above object, the invention according to claim 5 is characterized in that the media input means of the transmitting terminal is means for inputting data other than images / voices.

In order to achieve the above object, the invention according to claim 6 is characterized in that the media conversion means of the transmitting terminal has a media multiplexing function capable of multiplexing a plurality of media, and the receiving terminal has two or more usable media. In some cases, it has a function of identifying a plurality of media capable of separating multiplexed data.

In order to achieve the above object, the invention according to claim 7, wherein the extracting means of the transmitting terminal has a data content confirming function for confirming whether or not the destination of the receiving terminal or an available medium has been extracted; And a retransmission request function for requesting the communication control means to retransmit when the data cannot be accurately extracted.

In order to achieve the above object, the invention according to claim 8 is characterized in that the transmitting terminal has display means for displaying information,
The media conversion means of the transmission terminal has a transmission media content display function of displaying, on the display means, a medium to which the transmission terminal intends to transfer is transmitted as a reception terminal based on predetermined conversion form information. It is characterized by having.

In order to achieve the above object, a ninth aspect of the present invention includes a transmitting terminal, a receiving terminal, and a server interposed between the transmitting terminal and the receiving terminal and managing a schedule of the receiving terminal on a network. A communication system,
The transmitting terminal has communication control means for transmitting the input media to a server regardless of compatibility with the receiving terminal, and the server performs media based on available media of the receiving terminal and transmission media from the transmitting terminal. Media conversion means for performing conversion and transmission means for transmitting the conversion information to the receiving terminal are provided.

In order to achieve the above object, a tenth aspect of the present invention comprises a transmitting terminal, a receiving terminal, and a server interposed between the transmitting terminal and the receiving terminal and managing the schedule of the receiving terminal on a network. A communication system, wherein the transmission terminal receives at least one or more media and processes the data into a transmittable data format; a transmission-side line control unit that controls line connection; Communication control means for performing connection and transmitting the media input from the media processing means to the server via the transmission-side line control means regardless of compatibility with a receiving terminal, wherein the server Server-side line control means for controlling, schedule management means for managing the schedule of the receiving terminal, and recognizing the media transmitted from the transmitting terminal Determining means, extracting means for extracting the destination and available media of the receiving terminal from the schedule management means based on the time at which the media was received from the transmitting terminal, and a predetermined conversion function protocol based on the extracted available media and transmitting medium. Media conversion means for performing media conversion using the same, and transmission means for transmitting the conversion information to the receiving terminal via the server-side line control means based on the destination of the receiving terminal.

[0022] To achieve the above object, the invention of claim 11 is characterized in that the media processing means of the transmitting terminal is means for inputting image data and encoding image data.

In order to achieve the above object, a twelfth aspect of the present invention is characterized in that the media processing means of the transmitting terminal is means for inputting audio data and encoding audio data.

[0024] In order to achieve the above object, the invention according to claim 13 is characterized in that the media processing means of the transmitting terminal comprises an image / image processing unit.
It is a means for inputting data other than voice.

In order to achieve the above object, according to the invention of claim 14, the media conversion means of the server has a media multiplexing function capable of multiplexing a plurality of media, and two or more media usable by a receiving terminal. In this case, a plurality of media identification functions capable of separating multiplexed data are provided.

In order to achieve the above object, the invention of claim 15 is characterized in that the server can be separated into a server for managing the schedule of the receiving terminal and a server for performing media conversion.

In order to achieve the above object, the invention of claim 16 relates to a communication network such as LAN / ISDN / PSTN, PHS
/ It is applicable to communication networks used in mobile phones and the like.

[0028] In order to achieve the above object, an invention according to claim 17 is a media conversion method in a communication system having a transmitting terminal, a receiving terminal, and a server for managing the schedule of the receiving terminal on a network, The transmitting terminal, a media conversion step of converting the available media of the receiving terminal extracted from the receiving terminal schedule information received from the server based on the input media,
A communication control step of transmitting the conversion information to the receiving terminal, wherein the server can use the receiving terminal based on a request of the transmitting terminal from a schedule including terminal capabilities available to the receiving terminal for a predetermined period registered in advance. And a capability transmitting step of transmitting search information to a transmitting terminal.

In order to achieve the above object, an invention according to claim 18 is a media conversion method in a communication system having a transmission terminal, a reception terminal, and a server for managing the schedule of the reception terminal on a network, The transmitting terminal includes: a media inputting step of inputting at least one or more media; a communication controlling step of performing line connection with a server to request / receive schedule information of a receiving terminal; and a transmitting side controlling line connection. A line control step, a communication protocol step for realizing a communication protocol by linking the communication control step and the transmission-side line control step, and extracting a destination and an available medium of the reception terminal from schedule information of the reception terminal received from the server. An extraction step, extraction information and a message input from the input step. Media conversion step of converting the available media of the receiving terminal based on the media using a predetermined conversion function protocol, and a transfer step of transferring the conversion information to the transmission side line control step based on the destination of the receiving terminal. A server-side line control step of controlling a line connection, a schedule management step in which a schedule including available terminal capabilities of a receiving terminal for a predetermined period is registered, and the schedule based on a request from a transmitting terminal. The method further comprises a capability search step of searching for an available terminal capability of the receiving terminal from the management step, and a capability transmission step of transmitting search information to the server-side line control step.

[0030] To achieve the above object, the invention of claim 19 is characterized in that the media input step of the transmitting terminal is a step of inputting image data and encoding image data.

To achieve the above object, the invention of claim 20 is characterized in that the media input step of the transmitting terminal is a step of inputting audio data and encoding the audio data.

[0032] In order to achieve the above object, the invention of claim 21 is characterized in that the media input step of the transmitting terminal is a step of inputting data other than image / audio.

[0033] In order to achieve the above object, the invention according to claim 22 is characterized in that the media conversion step of the transmitting terminal comprises: a media multiplexing function capable of multiplexing a plurality of media; In some cases, it has a function of identifying a plurality of media capable of separating multiplexed data.

To achieve the above object, the invention according to claim 23, wherein the extracting step of the transmitting terminal includes a data content confirming function for confirming whether or not a destination of the receiving terminal or an available medium has been extracted; And a retransmission request function for requesting the communication control step to retransmit when it cannot be accurately extracted.

In order to achieve the above object, the invention according to claim 24, wherein the transmitting terminal has a display step of displaying information, and the media conversion step of the transmitting terminal includes the step of transmitting the media to which the transmitting terminal tried to transfer. The transmission terminal has a transmission media content display function of displaying which media is transmitted as a receiving terminal in the display step based on predetermined conversion form information.

In order to achieve the above object, an invention according to claim 25 has a transmission terminal, a reception terminal, and a server interposed between the transmission terminal and the reception terminal and managing the schedule of the reception terminal on a network. A media conversion method in a communication system, wherein the transmitting terminal has a communication control step of transmitting input media to a server regardless of compatibility with a receiving terminal, wherein the server uses available media of the receiving terminal. And a media conversion step of performing media conversion based on the transmission medium from the transmission terminal, and a transmission step of transmitting the conversion information to the reception terminal.

[0037] In order to achieve the above object, an invention according to claim 26 comprises a transmitting terminal, a receiving terminal, and a server interposed between the transmitting terminal and the receiving terminal and managing the schedule of the receiving terminal on a network. A media conversion method in a communication system, wherein the transmitting terminal inputs at least one or more media and processes the input data into a transmittable data format, and a transmission-side line control step for controlling line connection. A communication control step of performing a line connection with a server and transmitting the media input from the media processing step to the server via the transmission-side line control step regardless of compatibility with a receiving terminal, wherein the server , Server side line control step for controlling line connection, and schedule management for managing the schedule of the receiving terminal A step of recognizing media transmitted from the transmitting terminal; an extracting step of extracting the destination and available media of the receiving terminal from the schedule management step based on a time at which the media is received from the transmitting terminal; A media conversion step of performing media conversion using a predetermined conversion function protocol based on a possible medium and a transmission medium, and a transmission step of transmitting conversion information to a receiving terminal via the server-side line control step based on a destination of the receiving terminal. It is characterized by having.

In order to achieve the above object, the invention according to claim 27 is characterized in that the media processing step of the transmitting terminal is a step of inputting image data and encoding image data.

In order to achieve the above object, the invention according to claim 28 is characterized in that the media processing step of the transmitting terminal is a step of inputting audio data and encoding the audio data.

[0040] In order to achieve the above object, the invention of claim 29 is characterized in that the media processing step of the transmitting terminal is a step of inputting data other than image / audio data.

In order to achieve the above object, the invention according to claim 30 is characterized in that the media conversion step of the server has a media multiplexing function capable of multiplexing a plurality of media and two or more available media of the receiving terminal. In this case, a plurality of media identification functions capable of separating multiplexed data are provided.

In order to achieve the above object, the invention according to claim 31 is characterized in that the server can be separated into a server that manages the schedule of the receiving terminal and a server that performs media conversion.

In order to achieve the above object, the invention of claim 32 relates to a communication network such as LAN / ISDN / PSTN, PHS
/ It is applicable to communication networks used in mobile phones and the like.

[0044]

Embodiments of the present invention will be described below with reference to the drawings.

[1] First Embodiment FIG. 4 is a conceptual diagram showing a configuration of a media conversion communication system according to a first embodiment of the present invention. The media conversion communication system according to the first embodiment of the present invention includes a transmitting terminal 401, a receiving terminal 402, and a schedule management server 4.
03 is provided. The configuration illustrated in FIG. 4 is an example, and the configuration is not limited to the illustrated configuration.

The function of each part of the media conversion communication system will be described in detail. The transmitting terminal 401 is a transmitting terminal configured to be connectable to the schedule management server 403 via a network (including a dial-up connection). The receiving terminal 402 is a general-purpose receiving terminal that can perform communication. The schedule management server 403 is a server existing on the network, and performs schedule management of terminals such as the transmission terminal 401 and the reception terminal 402, which exist as an intranet (a method of using the Internet technology in a company). In addition, in this schedule management,
It is assumed that there is information such as media information that can be used for each time zone.

The media conversion communication system having the above configuration provides an environment in which real-time terminal capability information (current telephone number / usable media) of the receiving terminal 402 can be recognized from the contents of the schedule held by the schedule management server 403. The transmitting terminal 401 obtains the management data of the receiving terminal 402 from the schedule management server 403, so that the telephone number /
Judge the media. The present system is for realizing a system in which the determined media is subjected to media conversion by the transmitting terminal 401 as necessary and transmitted to the receiving terminal 402.

FIG. 1 is a functional block diagram showing an example of the configuration of the transmitting terminal 401 in the media conversion communication system according to the first embodiment of the present invention. The transmitting terminal 401 in the media conversion communication system according to the first embodiment of the present invention includes a communication control unit 101 for media conversion, a line control unit 102, a receiver information management unit 103, a possible media notification unit 104, and receiver information. Storage unit 105, media conversion unit 106, media conversion library unit 107, camera 1
08, image encoding unit 109, microphone 110, audio encoding unit 111, LCD (Liquid Crystal Display) unit 1
12, image decoding unit 113, speaker 114, audio decoding unit 115, data unit 116, media conversion receiving unit 11
7, a configuration including a communication setting conversion unit 118.

The function of each part of the transmission terminal 401 will be described in detail.
1 is the receiving terminal 4 for the schedule management server 403
In order to request the schedule data No. 02, a call is made (S202 in FIG. 2), a response to the connection confirmation (S203 in FIG. 2) returned from the schedule management server 403, and a schedule request from the receiving terminal 402 (S204 in FIG. 2). ), Receiving terminal 40 transmitted from schedule management server 403
2 (S205 in FIG. 2), a line disconnection request (S206 in FIG. 2), and a response to the line disconnection confirmation from the schedule management server 403 (S20 in FIG. 2).
7), a communication control process with the schedule management server 403 is performed.

The line control unit 102 communicates with various parties including the receiving terminal 402 and the schedule management server 403. For example, a LAN (Local Area Ne) is used.
twork: Local information communication network / ISDN (Integrated Se)
rvices Digital Network: Integrated Digital Communication Network) / P
STN (Public Switched Telephone Network) / PHS (Personal Handy-phone Sy)
stem: A simple mobile phone) / mobile phone.

The receiver information management unit 103 extracts information of the schedule management server 403 (telephone number / schedule of the schedule management server 403 at transmission / usable media) received by the communication control unit 101 for media conversion. And a first process of storing the extracted information in the receiver information storage unit 105. When the telephone number is requested from the communication setting conversion unit 118, the receiver information storage unit 105
A second process of reading from the receiver information storage unit 105 and transferring to the communication setting conversion unit 118 when an available medium is requested from the available media notification unit 104; Perform three steps.

[0052] The available media notifying section 104 notifies the media converting section 106 of the available media of the receiving terminal 402 received from the receiver information managing section 103. The recipient information storage unit 105 stores the schedule content of the receiving terminal 402 to which the write request has been issued from the recipient information management unit 103. The stored data is not retained even if it is retained in the power OFF state. Shall be good. The media conversion unit 106 extracts a necessary processing engine from the media conversion library unit 107 and performs media conversion based on the available media information requested by the recipient information management unit 103. 10
9. It is assumed that all media data such as the audio encoding unit 111 and the data unit 116 can be converted.

The media conversion library unit 107, based on the media conversion requested by the media conversion unit 106,
An engine for performing media conversion is selected. The media conversion library unit 107 includes, for example,
Speech Recognition / Speech Synthesis / OCR (Optical Charactor R)
It is assumed that all engines for converting media such as ecognition / image processing are included.

The camera 108 is an imaging means for inputting an image, and may be either an analog camera (including a moving image) or a digital camera (including a moving image). However,
When the camera 108 is an analog camera, the camera 108 has an A / D (analog / digital) conversion function. The image encoding unit 109 encodes image data obtained from the camera 108, and is an ITU-T
(International Telecommunication Union-Telec
ommunication Standardization Sector: ITU Telecommunications Standardization Sector Recommendation H.261 and JPEG (Joint P)
data compression such as hotographic Experts Group (an image compression method by the same organization).

The microphone 110 is used for inputting audio data. The audio encoding unit 111 encodes audio data obtained from the microphone 110, and performs PCM (P
It includes data compression such as ulseCode Modulation (pulse code modulation). The LCD unit 112 is an image data display unit that displays the received image data. The display method of the image data is not limited to the liquid crystal, but may be another display method. The image decoding unit 113 includes the media conversion unit 10
6 is decoded. Speaker 1
14 outputs audio data. Voice decoding unit 115
Decrypts the audio data received from the media conversion unit 106. The data unit 116 transmits and receives data other than images and sounds.

Media conversion receiving section 117 receives the data converted by media conversion section 106. The communication setting conversion unit 118 receives the data received from the media conversion reception unit 117 and the telephone number of the reception terminal 402 received from the recipient information management unit 103, based on the line control unit 1
02 is transmitted. The line control unit 102 makes a call to the receiving terminal 402 based on the data.
Note that the communication control processing of S208 to S213 in FIG. 2 described later is performed by this functional block.

FIG. 7 shows a schedule management server 40 of the media conversion communication system according to the first embodiment of the present invention.
3 is a functional block diagram illustrating a configuration of No. 3; FIG. The schedule management server 403 according to the first embodiment of the present invention includes a line control unit 701, a reception terminal schedule management unit 702,
The configuration includes a capability search unit 703 and a capability transmission unit 704.

The function of each unit of the schedule management server 403 will be described in detail. The line control unit 701 controls line connection. The receiving terminal schedule management unit 702 pre-registers a schedule including the available terminal capabilities of the receiving terminal 402 for a predetermined period. The capability searching unit 703 searches the receiving terminal schedule management unit 702 for available terminal capabilities of the receiving terminal 402 based on the request from the media conversion communication control unit 101 of the transmitting terminal 401. The capability transmitting unit 704 transmits information obtained from the capability searching unit 703 to the line control unit 701.

Next, the operation of the communication control procedure in the media conversion communication system according to the first embodiment of the present invention configured as described above will be described with reference to the sequence diagram of FIG. In the figure, the number with S added indicates a sequence.

S201 is a sequence in which the receiving terminal 402 stores its own schedule data in the schedule management server 403 irregularly. This is an operation in which self-management data such as a schedule is collectively stored in the schedule management server 403, as is common sense even when the distributed environment is beginning to be prepared. In addition, when a normal distributed environment is considered, a user having the receiving terminal 402 has a terminal corresponding to the time and place, and thus a user may not have a terminal having a schedule function.

However, especially in the case of business users, when they enter the workplace, most of them take actions such as turning on the power of a PC (Personal Computer) and confirming the schedule of the day. Does not have a function of registering from all the receiving terminals 402 to the schedule management server 403,
From a terminal such as the PC, the schedule management server 40
3 shall be registered.

The schedule application uses media (GUI) that can be used by the receiving terminal.
As shown in FIG. 3, which is an explanatory diagram of a display unit for allowing the user to easily select an available media as an “available media interface”, “available media” according to his / her schedule time is set. For example, in the conference from 10:00 to 12:00, the environment of only data reception can be performed without ringing the bell of the mobile phone, so that “audio can be received”, “image can be received”, “data can be received” From the settings of
Select only "Data can be received". PI shown in FIG.
In M (Personal Information Manager: software for managing personal information), as an example of a personal schedule, "item: meeting""location: @ meeting room""possible media:
"Data can be received".

Step S202 is a sequence in which a call is issued from the transmitting terminal 401 to the schedule management server 403 as a connection request. S203 is an operation in which the schedule management server 403 confirms the connection to the above S202, and the transmission terminal 401 and the schedule management server 403 are connected by this operation. S20
Reference numeral 4 denotes a receiving terminal schedule request for requesting the latest data from the schedule data received in S201 in S201. S205 is a receiving terminal schedule reply for transmitting the data of the receiving terminal 402 when the request of S204 is permitted.

S206 is a sequence for disconnecting the line with the schedule management server 403 when the data of the receiving terminal 402 is received in S205. S2
07 is a line disconnection confirmation that permits the disconnection request in S206. The media conversion unit 10 of the transmission terminal 401
In S6, if the transmitting terminal 401 cannot obtain satisfactory data from the schedule management server 403, the above S204 may be performed again.

Next, the transmitting terminal 401 makes a connection with the receiving terminal 402 and transmits the media-converted data.
In this case, the media conversion is performed in S205 described above and S
208.

In steps S208 to S209, as in steps S202 to S203, the transmitting terminal 401 sets the receiving terminal 402
This is the sequence for connecting to the line. S210 is
This is a data transfer sequence in which the transmitting terminal 401 receives the above S209 and transmits data usable by the receiving terminal 402 for the first time. S211 is a transfer confirmation sequence in which the transmitting terminal 401 determines whether or not the data transmitted in S210 is reliably transferred. If the sequence is not received within a predetermined time, the process returns to S210, Data transfer is performed again. S21
Steps 2 to S213 are a sequence for the transmitting terminal 401 to disconnect the line from the receiving terminal 402, similarly to the above steps S206 to S207.

The above is the communication control procedure of the media conversion communication system according to the first embodiment of the present invention, but the present invention is not limited to only the first embodiment.

First, in the first embodiment, the explanation has been made by limiting the number of media to one. However, it is assumed that the present invention can be used for two or more media. For example, in FIG. 1 described above, when the receiving terminal 402 can receive an image and a text, the media conversion unit 106 of the transmitting terminal 401 transmits the ITU recommendation H.221 or H.2 described above.
23, a function to use a multiplexing method such as H.22M is provided, and the created data can be transmitted to the media conversion receiving unit 117. However, when the multiplexing of a plurality of media is supported, the multiplexing can be performed only when the receiving terminal 402 also has a function of separating the multiplexed data in advance.

Further, in the sequence of S204 in FIG. 2, the media conversion communication control unit 1 of the transmitting terminal 401
01, the schedule data of the receiving terminal 402 is received every time a call is made, but the file of the transmitting terminal 401 is compared with the file of the schedule management server 403, and the data is updated only when the data is updated. Can also be received. Similarly, for example, when the receiving terminal 402 is not the only communication partner terminal, it is assumed that information of many terminals can be received at one time.

The receiver information management unit 103 of the transmitting terminal 401 makes a determination after the information of the schedule management server 403 is received by the communication control unit 101 for media conversion, and thereafter stores the information in the receiver information storage unit 105. However, the receiver information management unit 103 can store the data of the media conversion communication control unit 101 as it is in the receiver information storage unit 105 as another function, and can determine the stored information. And

Further, in the media conversion communication system in which the receiver information storage unit 105 of the transmitting terminal 401 holds the previous data, the communication control unit 101 for media conversion of the transmitting terminal 401 one time,
The receiver information storage unit 105 determines whether the schedule information for the previous receiving terminal 402 includes the current information.
When the schedule information does not include the current information, a connection request is made to the schedule management server 403 again, and when the schedule information includes the current information, Communication that does not go through the schedule management server 403 can be performed.

As described above, according to the first embodiment of the present invention, the media conversion communication system has the schedule management server 403 on the network and determines the current telephone number of the receiving terminal 402 from the contents of the schedule. (It is assumed that the extension is included. The same applies to the following.) / In an environment where the available media can be recognized, the transmitting terminal 401 transmits the management data of the receiving terminal 402 to the schedule management server 4
By obtaining the telephone number / media that can be used by the receiving terminal 402, control is performed to determine the telephone number / media that can be used by the receiving terminal 402, convert the media as needed, and transmit the media to the receiving terminal 402.

Transmission terminal 40 of media conversion communication system
1 is a camera 108 for inputting an image as a medium.
And a microphone 110 for performing audio input as media,
A line connection is made with the data section 116 for inputting data other than image / audio data as a medium and the schedule management server 403 to request the schedule information of the receiving terminal 402 or conversely receive the schedule information of the receiving terminal 402. The communication control unit 101 for media conversion performs line connection control, and performs LAN / ISDN / PSTN /
The line control unit 102 capable of supporting a communication protocol such as a PHS / mobile phone and the information received from the schedule management server 403 are analyzed and received from the schedule information of the receiving terminal 402 stored in the receiver information storage unit 105. The recipient information management unit 103 that extracts the destination and available media of the terminal 402, the recipient information storage unit 105 that stores information received from the recipient information management unit 103, and the recipient information management unit 103 that is extracted by the recipient information management unit 103. Media notification unit 10 for recognizing used media
4, a media conversion library unit 107 for storing a conversion function protocol for media conversion, and a media input from the camera 108, microphone 110, and data unit 116 based on the information from the available media notification unit 104 and the receiving terminal 4.
02 using the media conversion library unit 107, a media conversion receiving unit 117 for temporarily storing the media converted by the media conversion unit 106, and a receiver information management unit And a communication setting conversion unit 118 that transfers the data received from the media conversion reception unit 117 to the line control unit 102 based on the destination of the reception terminal 402 extracted by the communication terminal 103.

Further, the schedule management server 403 of the media conversion communication system registers in advance a line control unit 701 for controlling line connection and a schedule including the available terminal capacity of the receiving terminal 402 for a predetermined period. In response to a request from the receiving terminal schedule management unit 702 and the media conversion communication control unit 101 of the transmitting terminal 401,
From the receiving terminal schedule management unit 702 to the receiving terminal 402
A capability search unit 703 for searching for available terminal capabilities of
And a capability transmitting unit 704 for transmitting information obtained from the capability searching unit 703 to the line control unit 701.

Therefore, with the above configuration, the receiving terminal 40
2 is performed by the transmitting terminal 401 according to the media conversion according to
The first problem described above can be solved. That is, it is possible to provide a media conversion communication system adapted to all communication terminals. Further, by clarifying the communication control unit using the media conversion, the above-described second problem can be solved. That is, it is possible to provide a media conversion communication system in which a part of communication control regarding media conversion is clarified.

Further, as described above, the transmitting terminal 401
A camera 108 for inputting images as media, an image encoding unit 109 for encoding image data, a microphone 110 for inputting audio as media, and an audio encoding unit 111 for encoding audio data; By having the data unit 116 for inputting data other than image / audio as media, a media conversion communication system compatible with all media can be provided.

Further, the media conversion unit 1 of the transmitting terminal 401
06, depending on the media multiplexing function capable of multiplexing a plurality of media and the one or more media identified by the possible media notifying unit 104, when there are two or more media available to the receiving terminal 402, In addition, by having a multiple media identification function for separating multiplexed data, the media conversion communication system can be used even when communication using multiplexing of media is desired.

The receiver information management unit 103 of the transmitting terminal 401 has a data content confirmation function for determining whether or not the destination of the receiving terminal 402 or usable media has been extracted. Has a retransmission request function of making a retransmission request to the media conversion communication control unit 101, so that the media conversion communication system can cope with a burst error or the like that often occurs in a wireless environment.

Further, the transmitting terminal 401 has an LCD unit 112 for displaying information, and the media converting unit 106 of the transmitting terminal 401 determines whether or not the transmitting terminal 401 is based on the conversion form information selected from the media converting library unit 107. The receiving terminal 402 has a transmission media content display function of displaying on the LCD unit 112 which media is to be transmitted as the receiving terminal 402. It can be notified whether or not it has been sent.

To summarize the effects of the first embodiment of the present invention, the media conversion communication system has a schedule management server 403 on a network and, based on the contents of the schedule, the current telephone number of the receiving terminal 402 (including the extension). In the environment where the available media can be recognized, the transmitting terminal 401
Is obtained from the schedule management server 403, it is possible to determine the telephone number / media that the receiving terminal 402 can use, convert the medium if necessary, and transmit the media to the receiving terminal 402. This enables a system configuration that can be applied to all receiving terminals having a communication control function even if there is no compatibility such that the receiving side must have the same application as the transmitting side. Further, by clarifying communication control means for practicing media conversion which has not been clarified so far, a more practical level media conversion communication system can be provided.

[2] Second Embodiment FIG. 5 is a conceptual diagram showing a configuration of a media conversion communication system according to a second embodiment of the present invention. The media conversion communication system according to the second embodiment of the present invention includes a transmission terminal 501, a reception terminal 502, a schedule management server and a media conversion server 503.
Note that the configuration illustrated in FIG. 5 is an example, and the configuration is not limited to the illustrated configuration.

The function of each part of the media conversion communication system will be described in detail. The transmission terminal 501 is a transmission terminal configured to be connectable to the schedule management server / media conversion server 503 via a network (including a dial-up connection). . The receiving terminal 502 is a general-purpose receiving terminal that can perform communication. The schedule management server / media conversion server 503 is a server existing on the network, and has a first function of managing schedules of terminals existing as an intranet, including the transmission terminal 501 and the reception terminal 502, and a reception function from the transmission terminal 501. This is a server having a second function (media conversion function) of converting the converted media into media usable by the receiving terminal 502. Note that this schedule management also includes information such as media information that can be used for each time zone.

The media conversion communication system having the above-described structure is a schedule management server / media conversion server 5.
03 is the receiving terminal 50 based on the contents of its own schedule.
In an environment where the real-time terminal capability information (current telephone number / available media) can be recognized, the transmitting terminal 501 can transmit without recognizing the available media of the receiving terminal 502. And this system is
This is for realizing a system in which the media available in the receiving terminal 502 is media-converted by the schedule management server / media conversion server 503 as necessary and transmitted to the receiving terminal 502.

FIG. 8 is a functional block diagram showing a configuration of the transmitting terminal 501 of the media conversion communication system according to the second embodiment of the present invention. The transmission terminal 501 according to the second embodiment of the present invention has a configuration including a media processing unit 801, a server communication control unit 802, and a line control unit 803.

The function of each section of the transmitting terminal 501 will be described in detail. The media processing section 801 inputs one or more media and processes the data into a transmittable data format. The line control unit 803 controls line connection. The server communication control unit 802 makes a line connection with the schedule management server / media conversion server 503, and transfers information input from the media processing unit 801 to the line control unit 803 without concern for compatibility with the receiving terminal 502. .

FIG. 9 is a functional block diagram showing the configuration of the schedule management server / media conversion server 503 of the media conversion communication system according to the second embodiment of the present invention. The schedule management server / media conversion server 503 according to the second embodiment of the present invention
01, server schedule management unit 902, media discrimination unit 903, server media conversion library unit 90
4, a reception time measurement unit 905, a server media identification content determination unit 906, a server media conversion unit 907, and a media transmission unit 908.

The function of each part of the schedule management server / media conversion server 503 will be described in detail.
1 controls the line connection. The server schedule management unit 902 manages the schedule of the receiving terminal 502. The media determining unit 903 recognizes the media transmitted from the transmitting terminal 501 via the line control unit 901.
The server media conversion library unit 904 stores a conversion function protocol for media conversion. The reception time measurement unit 905 recognizes the time at which the media was received from the transmission terminal 501 via the line control unit 901. The server media identification content determination unit 906 extracts the destination of the receiving terminal 502 and the available media from the server schedule management unit 902 based on the measurement of the reception time measurement unit 905.

The server media conversion unit 907 is based on the available media extracted by the server media identification content discrimination unit 906 and the transmission media extracted by the media discrimination unit 903.
4 is performed using the media conversion. The media transmission unit 908 transmits media to the receiving terminal 502 via the line control unit 901 based on the destination extracted by the server media identification content determination unit 906.

Next, the operation of the communication control procedure in the media conversion communication system according to the second embodiment of the present invention configured as described above will be described with reference to the sequence diagram of FIG. In the figure, the number with S added indicates a sequence.

S601 is a sequence in which the receiving terminal 502 irregularly stores its own schedule data in the schedule management server / media conversion server 503. This is an operation in which self-management data such as a schedule is collectively stored in the schedule management server / media conversion server 503, as is now common sense even when the distributed environment is beginning to be prepared.

In step S 602, the transmission terminal 501 sends a message to the schedule management server / media conversion server 503.
This is a sequence for making a call as a connection request. S603
Is an operation in which the schedule management server / media conversion server 503 confirms the connection to the above S602, and by this operation, the transmission terminal 501 and the schedule management server / media conversion server 503 are connected. S604 is a sequence in which the transmission terminal 501 transmits media to be transmitted to the reception terminal 502 to the schedule management server / media conversion server 503. Here, it is assumed that the transmitting terminal 501 does not need to recognize the media that can be used by the receiving terminal 502. That is, it is assumed here that troublesome negotiation such as capability identification between terminals is not performed.

In step S605, it is determined whether the data transmitted in step S604 has been reliably transferred.
1 is a transfer confirmation sequence determined by the control unit 1. If this sequence is not received within a predetermined time, the above-described S6
Returning to step 04, data transfer is performed again. S606 is:
This is a sequence for disconnecting the line from the schedule management server / media conversion server 503 when the data of the receiving terminal 502 is received in S605. S607
Is a line disconnection confirmation that permits the disconnection request in S606.

Next, transmitting terminal 501 establishes connection with receiving terminal 502 and performs processing for transmitting the media-converted data.

Steps S608 to S609 are a sequence for the schedule management server / media conversion server 503 to make a line connection with the receiving terminal 502, similarly to the above steps S602 to S603. S610 is a data transfer sequence in which the schedule management server / media conversion server 503 receives the above S609 and transmits data (media) usable by the receiving terminal 502 for the first time.
Here, the media conversion function, which is the above-described second function of the schedule management server / media conversion server 503, is performed after the medium transmitted from the transmission terminal 501 in step S604 is changed to a medium that can be used by the reception terminal 502. State.

S611 is a transfer confirmation sequence in which the schedule management server / media conversion server 503 determines whether or not the data transmitted in S610 has been transferred reliably. If this sequence is not received within a predetermined time, Returns to step S610, and performs data transfer again. Steps S612 to S613 are sequences for the schedule management server / media conversion server 503 to disconnect the line from the receiving terminal 502, similarly to the above steps S606 to S607.

The above is the operation of the communication control procedure in the media conversion communication system according to the second embodiment of the present invention, but the present invention is not limited to only the second embodiment.

First, in the second embodiment, the explanation has been made by limiting the number of media to one. However, it is assumed that the present invention can be used for two or more media. For example, in FIG. 1 described above, when a function is added to the media conversion communication control unit 101 of the transmitting terminal so that the first embodiment and the second embodiment can operate in the dual mode, the receiving terminal If the image and the text can be received, the media conversion unit 106 uses the above-mentioned ITU recommendation H.264.
221 or H.223 or H.22M, and can transmit the created data to the media conversion receiving unit 117. However, the case where the multiplexing of a plurality of media is supported is possible only when the receiving terminal has a function capable of separating the multiplexed data in advance.

The schedule management server / media conversion server 503 shown in FIG. 5 is a server that has both the schedule management function and the media conversion function. However, the schedule management function and the media conversion function are provided on separate servers. By having it, the load on the server can be reduced. in this case,
The exchange between each server may be a unique protocol.

As described above, according to the second embodiment of the present invention, a media conversion communication system has a schedule management server and a media conversion server 503 having a schedule management function and a media conversion function on a network. Under the environment, the transmitting terminal 501 transmits the media to the schedule management server / media conversion server 503 without recognizing the available media of the receiving terminal 502, and the schedule management server / media conversion server 503 receives the media from the transmitting terminal 501. It recognizes the media and the telephone number of the receiving terminal 502, and performs control to transfer the media-converted data to the receiving terminal 502.

Transmission terminal 50 of media conversion communication system
Reference numeral 1 denotes a media processing unit 801 that performs one or more media inputs and processes the data into a transmittable data format, a line control unit 803 that controls line connection, a schedule management server and a media conversion server 503, and a line connection. And a server communication control unit 802 that transfers information input from the media processing unit to the line control unit 803 without concern for compatibility with the receiving terminal 502.

Further, a schedule management server / media conversion server 503 of the media conversion communication system includes a line control unit 901 for performing line control and a server schedule management unit 902 for managing the schedule of the receiving terminal 502.
A media discriminating unit 903 for recognizing media transmitted from the transmitting terminal 501 via the line control unit 901, a server media conversion library unit 904 for storing a conversion function protocol for media conversion, and a line control unit 901. A reception time measurement unit 905 for recognizing a time at which the media is received from the transmission terminal 501;
5, a server media identification content discriminating unit 906 for extracting the destination of the receiving terminal 502 and usable media from the server schedule management unit 902 based on the time recognition by the server 5
A server that converts media using the server media conversion library unit 904 based on the available media extracted by the server media identification content determination unit 906 and the transmission media extracted by the media determination unit 903 And a receiving terminal 5 via the line control unit 901 based on the destination extracted by the server media identification content determining unit 906 after the media conversion.
Media transmission unit 908 that transmits media to the media 02
And

Therefore, with the above configuration, even in an environment between the server and the client, the system configuration can be realized without the receiving terminal 502 having a function of accessing the server. The media processing unit 801 of the transmission terminal 501 includes an image input function for inputting image data and encoding image data, an audio input function for inputting audio data and encoding audio data, and a function other than image / audio. And a data input function for inputting the data of (1) can provide a media conversion communication system compatible with all media.

Further, the server media conversion unit 907 of the schedule management server / media conversion server 503 includes:
A media multiplexing function capable of multiplexing a plurality of media;
When there are two or more media available to the receiving terminal 502 in accordance with one or more media, by using a plurality of media identification functions for separating multiplexed data, communication using media multiplexing can be performed. The media conversion communication system can also be used when desired.

To summarize the effects of the second embodiment of the present invention, the media conversion communication system can be used in an environment in which a schedule management server and a media conversion server 503, which serves both as a schedule management server and a media conversion server, are provided on a network. , The transmitting terminal 501 is the receiving terminal 50
The media is transmitted to the schedule management server / media conversion server 503 without recognizing the second available media, and the schedule management server / media conversion server 50 is transmitted.
No. 3 recognizes the media received from the transmitting terminal 501 and the telephone number of the receiving terminal 502, and can control the transfer of the media-converted data to the receiving terminal 502, so that the receiving terminal does not have an access function to the server. Therefore, it is possible to provide a media conversion communication system that can be applied to all receiving terminals having a communication control function even between a server / client system.

The present invention may be applied to a system composed of a plurality of devices or an apparatus composed of one device. A storage medium storing software program codes for realizing the functions of the above-described embodiments is supplied to a system or an apparatus, and a computer (or CPU or MPU) of the system or the apparatus executes the program code stored in the storage medium. Needless to say, this can also be achieved by executing the reading.

In this case, the program code itself read from the storage medium implements the functions of the above-described embodiment, and the storage medium storing the program code constitutes the present invention.

As a storage medium for supplying the program code, for example, a floppy disk, hard disk, optical disk, magneto-optical disk, CD-ROM, CD
-R, a magnetic tape, a nonvolatile memory card, a ROM, or the like can be used.

The functions of the above-described embodiments are implemented when the computer executes the readout program codes, and the OS or the like running on the computer is actually executed based on the instructions of the program codes. It goes without saying that a part or all of the above-described processing is performed, and the functions of the above-described embodiments are realized by the processing.

Further, after the program code read from the storage medium is written into a memory provided in a function expansion board inserted into the computer or a function expansion unit connected to the computer, based on the instruction of the program code, It goes without saying that the CPU included in the function expansion board or the function expansion unit performs part or all of the actual processing, and the processing realizes the functions of the above-described embodiments.

[0110]

As described above, according to the communication system of the first aspect of the present invention, there is provided a communication system having a transmitting terminal, a receiving terminal, and a server for managing the schedule of the receiving terminal. A transmitting unit configured to convert the available media of the receiving terminal extracted from the receiving terminal schedule information received from the server based on the input medium; and a communication control unit configured to transmit the converted information to the receiving terminal. Wherein the server comprises: a capability search unit configured to search for available terminal capabilities of the receiving terminal based on a request from the transmitting terminal from a schedule including available terminal capabilities of the receiving terminal for a predetermined period registered in advance; To transmit information to the transmitting terminal.
The following effects are obtained.

In an environment in which a server for managing the schedule of the receiving terminal is provided on the network and the current telephone number (including the extension) / available media of the receiving terminal can be recognized from the contents of the schedule, the transmitting terminal receives the data. By obtaining the management data of the terminal from the server, it is possible to determine the telephone number / media that can be used by the receiving terminal, convert the medium as needed, and control the transmission to the receiving terminal. This makes it possible to provide a communication system that can be applied to all receiving terminals having a communication control function, even if there is no compatibility such that the receiving side must have the same application as the transmitting side. Further, by clarifying the communication control means for applying the media conversion, which has not been clarified so far, a more practical communication system can be provided.

According to the communication system of the present invention, there is provided a communication system having a transmitting terminal, a receiving terminal, and a server for managing a schedule of the receiving terminal. Media input means for inputting one or more media, communication control means for performing line connection with a server to request / receive schedule information of a receiving terminal, transmission-side line control means for controlling line connection, and the communication Communication protocol means for realizing a communication protocol by linking the control means and the transmission-side line control means; extracting means for extracting the destination and available media of the receiving terminal from the receiving terminal schedule information received from the server; Using a predetermined conversion function protocol, the available media of the receiving terminal is determined based on the media input from the input means. And media conversion means for converting,
Transfer means for transferring the conversion information to the transmission-side line control means based on the destination of the reception terminal, wherein the server has a server-side line control means for controlling the line connection; Schedule management means in which a schedule including various terminal capacities is registered; capacity search means for searching available terminal capacities of the receiving terminal from the schedule management means based on a request from the transmitting terminal; The following effects are provided by the provision of the capability transmitting means for transmitting to the control means.

In an environment where a server for managing the schedule of the receiving terminal is provided on the network and the current telephone number (including the extension) / available media of the receiving terminal can be recognized from the contents of the schedule, the transmitting terminal performs the receiving operation. By obtaining the management data of the terminal from the server, it is possible to determine the telephone number / media that can be used by the receiving terminal, convert the medium as needed, and control the media to be transmitted to the receiving terminal. This makes it possible to provide a communication system that can be applied to all receiving terminals having a communication control function, even if there is no compatibility such that the receiving side must have the same application as the transmitting side. Further, by clarifying the communication control means for applying the media conversion, which has not been clarified so far, a more practical communication system can be provided.

According to the communication system of the third aspect of the present invention, since the media input means of the transmitting terminal is a means for inputting image data and encoding image data, the following effects can be obtained. Play.

The transmitting terminal obtains the management data of the receiving terminal from the server, determines the telephone number / media that can be used by the receiving terminal, and based on the image data (media) input from the media input means of the transmitting terminal. It is possible to perform control to convert the data into a medium usable by the receiving terminal and to transmit the medium to the receiving terminal. This makes it possible to provide a communication system that can be applied to all receiving terminals having a communication control function, even if there is no compatibility such that the receiving side must have the same application as the transmitting side. Further, by clarifying the communication control means for applying the media conversion, which has not been clarified so far, a more practical communication system can be provided.

According to the communication system of the present invention, since the media input means of the transmitting terminal is a means for inputting audio data and encoding audio data, the following effects can be obtained. Play.

The transmitting terminal obtains the management data of the receiving terminal from the server, determines the telephone number / media that can be used by the receiving terminal, and based on the voice data (media) input from the media input means of the transmitting terminal. It is possible to perform control to convert the data into a medium usable by the receiving terminal and to transmit the medium to the receiving terminal. This makes it possible to provide a communication system that can be applied to all receiving terminals having a communication control function, even if there is no compatibility such that the receiving side must have the same application as the transmitting side. Further, by clarifying the communication control means for applying the media conversion, which has not been clarified so far, a more practical communication system can be provided.

[0118] According to the communication system of the present invention, the media input means of the transmitting terminal can transmit an image / image.
Since this is a means for inputting data other than voice, the following effects are obtained.

The transmitting terminal obtains the management data of the receiving terminal from the server, determines the telephone number / media that can be used by the receiving terminal, and determines the data (media) other than the image / audio input from the media input means of the transmitting terminal. ), It is possible to perform control to convert the data into media that can be used by the receiving terminal and to transmit the media to the receiving terminal. This allows
Even if there is no compatibility such that the receiving side must have the same application as the transmitting side, it is possible to provide a communication system applicable to all receiving terminals having the communication control function. Further, by clarifying the communication control means for applying the media conversion, which has not been clarified so far, a more practical communication system can be provided.

[0120] According to the communication system of the present invention, the media conversion means of the transmitting terminal has a media multiplexing function capable of multiplexing a plurality of media, and the receiving terminal has two or more usable media. In some cases, since it has a function of identifying a plurality of media that can separate multiplexed data, the following effects can be obtained.

It is possible to provide a communication system that can appropriately cope with multiplexing of a plurality of media.

According to the communication system of the present invention, the extracting means of the transmitting terminal has a data content confirming function for confirming whether or not a destination or an available medium of the receiving terminal has been extracted; Has a retransmission request function of requesting the communication control means to retransmit when the data cannot be accurately extracted, and has the following effects.

According to the retransmission request, it is possible to provide a communication system capable of accurately extracting the destination of the receiving terminal or the available media.

[0124] According to the communication system of the present invention, the transmitting terminal has display means for displaying information, and the media converting means of the transmitting terminal transmits the media to which the transmitting terminal tried to transfer. Has a transmission media content display function of displaying on the display means which medium is transmitted as a receiving terminal based on predetermined conversion form information, so that the following effects are obtained.

By viewing the display on the display means by the user, it is possible to provide a communication system capable of accurately grasping which medium the transmission terminal intends to transfer is transmitted as the reception terminal.

According to the communication system of the present invention, there is provided a communication system having a transmitting terminal, a receiving terminal, and a server interposed between the transmitting terminal and the receiving terminal and managing the schedule of the receiving terminal. Wherein the transmitting terminal has communication control means for transmitting the input media to the server regardless of compatibility with the receiving terminal, and the server is configured to use available media of the receiving terminal and transmitting media from the transmitting terminal. And a transmission unit for transmitting the conversion information to the receiving terminal, so that the following effects can be obtained.

In an environment where a server having a schedule management function and a media conversion function is provided on a network, the transmitting terminal transmits the media to the server without recognizing the media available to the receiving terminal. Recognize the media received and the phone number of the receiving device,
It is possible to control the transfer of the media-converted data to the receiving terminal. This eliminates the need for the receiving terminal to have the function of accessing the server, so that it is possible to provide a communication system that can be applied to all receiving terminals having the communication control function between the server and the client system.

According to the communication system of the present invention, there is provided a communication system having a transmitting terminal, a receiving terminal, and a server interposed between the transmitting terminal and the receiving terminal and managing the schedule of the receiving terminal. The transmitting terminal includes a media processing unit that inputs at least one or more media and processes the data into a transmittable data format; a transmission-side line control unit that controls a line connection; Communication control means for transmitting the media input from the media processing means to a server via the transmission-side line control means regardless of compatibility with a receiving terminal,
The server has server-side line control means for controlling line connection, schedule management means for managing the schedule of the receiving terminal, determining means for recognizing the medium transmitted from the transmitting terminal, and receiving the medium from the transmitting terminal. Extracting means for extracting the destination and available media of the receiving terminal from the schedule management means based on time; media converting means for performing media conversion using a predetermined converting function protocol based on the extracted available media and transmitting media; A transmission unit for transmitting the conversion information to the receiving terminal via the server-side line control unit based on the destination of the receiving terminal has the following effects.

In an environment in which a server having a schedule management function and a media conversion function is provided on a network, the transmitting terminal transmits media to the server without recognizing the media available to the receiving terminal, and the server transmits the media to the transmitting terminal. Recognize the media received and the phone number of the receiving device,
It is possible to control the transfer of the media-converted data to the receiving terminal. This eliminates the need for the receiving terminal to have the function of accessing the server, so that it is possible to provide a communication system that can be applied to all receiving terminals having the communication control function between the server and the client system.

According to the communication system of the present invention, since the media processing means of the transmitting terminal is means for inputting image data and encoding image data, the following effects can be obtained. Play.

The transmitting terminal transmits the image data (media) input from the media processing means of the transmitting terminal to the server without recognizing the available media of the receiving terminal. Recognition of the telephone number of the terminal and control of transferring the media-converted data to the receiving terminal can be performed. As a result, the receiving terminal does not need to have the function of accessing the server,
It is possible to provide a communication system that can be applied to all receiving terminals having a communication control function between a server and a client system.

According to the communication system of the twelfth aspect of the present invention, since the media processing means of the transmitting terminal is a means for inputting audio data and encoding the audio data, the following effects can be obtained. Play.

The transmitting terminal transmits the audio data (media) input from the media processing means of the transmitting terminal to the server without recognizing the media available to the receiving terminal. Recognition of the telephone number of the terminal and control of transferring the media-converted data to the receiving terminal can be performed. As a result, the receiving terminal does not need to have the function of accessing the server,
It is possible to provide a communication system that can be applied to all receiving terminals having a communication control function between a server and a client system.

According to the communication system of the present invention, since the media processing means of the transmitting terminal is a means for inputting data other than image / audio data, the following effects can be obtained.

The transmitting terminal transmits data (media) other than the image / audio input from the media processing means of the transmitting terminal to the server without recognizing the available media of the receiving terminal, and the server receives the data from the transmitting terminal. It becomes possible to recognize the media and the telephone number of the receiving terminal, and to control the transfer of the media-converted data to the receiving terminal. This eliminates the need for the receiving terminal to have the function of accessing the server, so that it is possible to provide a communication system that can be applied to all receiving terminals having the communication control function between the server and the client system.

According to the communication system of the present invention, the media conversion means of the server has a media multiplexing function capable of multiplexing a plurality of media, and two or more available media of the receiving terminal. In this case, since it has a multiple media identification function capable of separating multiplexed data, the following effects can be obtained.

It is possible to provide a communication system that can appropriately cope with multiplexing of a plurality of media.

According to the communication system of the present invention, since the server can be separated into a server for managing the schedule of the receiving terminal and a server for performing media conversion, the following effects can be obtained. Play.

By providing each server with the schedule management function and the media conversion function of the receiving terminal, it is possible to provide a communication system capable of reducing the load on the server.

According to the communication system of the present invention, a communication network such as LAN / ISDN / PSTN, PH
Since the present invention can be applied to a communication network used in S / mobile phones, the following effects can be obtained.

Communication networks such as LAN / ISDN / PSTN,
In a communication system in which a transmitting terminal, a receiving terminal, and a server are connected via a communication network used by a PHS / mobile phone, etc., even if there is no compatibility such that the receiving side must have the same application as the transmitting side, A communication system applicable to all receiving terminals having a communication control function can be provided. Further, by clarifying the communication control means for applying the media conversion which has not been clarified so far, it is possible to provide a more practical communication system. Further, the receiving terminal does not need to have the function of accessing the server, and a communication system applicable to all receiving terminals having the communication control function can be provided between the server and the client system.

According to the 17th aspect of the present invention, there is provided a media conversion method in a communication system having a transmitting terminal, a receiving terminal, and a server for managing a schedule of the receiving terminal. A media conversion step of converting the available media of the reception terminal extracted from the schedule information of the reception terminal received from the server based on the input media; and a communication control step of transmitting the conversion information to the reception terminal. Wherein the server has a capability search step of searching for an available terminal capability of the receiving terminal based on a request of the transmitting terminal from a schedule including available terminal capabilities of the receiving terminal for a predetermined period registered in advance; And transmitting the information to the transmitting terminal.

In an environment where a server for managing the schedule of the receiving terminal is provided on the network, and the current telephone number (including the extension) / available media of the receiving terminal can be recognized from the contents of the schedule, the transmitting terminal receives the information. By obtaining the management data of the terminal from the server, it is possible to determine the telephone number / media that can be used by the receiving terminal, convert the medium as needed, and control the transmission to the receiving terminal. This makes it possible to provide a communication system that can be applied to all receiving terminals having a communication control function, even if there is no compatibility such that the receiving side must have the same application as the transmitting side. Further, by clarifying a communication control function for practically using a media conversion that has not been clarified so far, a more practical communication system can be provided.

According to the media conversion method in the communication system of the present invention, there is provided a media conversion method in a communication system having a transmitting terminal, a receiving terminal, and a server for managing the schedule of the receiving terminal. A transmitting terminal for inputting at least one or more media; a communication controlling step for performing line connection with a server to request / receive schedule information of a receiving terminal; and transmitting for controlling line connection. A side line control step, a communication protocol step for realizing a communication protocol by linking the communication control step and the transmission side line control step, and extracting a destination and an available medium of the receiving terminal from schedule information of the receiving terminal received from the server. Extraction step, and extraction information and the input step. And a transfer step of transferring the conversion information to the transmission-side line control step based on the destination of the receiving terminal. The server, based on a request from a transmitting terminal, a server-side line controlling step of controlling line connection, a schedule managing step in which a schedule including available terminal capabilities of the receiving terminal for a predetermined period is registered, and Since the method includes a capability search step of searching the terminal capabilities that can be used by the receiving terminal from the schedule management step and a capability transmission step of transmitting search information to the server-side line control step, the following effects are obtained.

In a situation where a server for managing the schedule of the receiving terminal is provided on the network and the current telephone number (including the extension) / available media of the receiving terminal can be recognized from the contents of the schedule, the transmitting terminal performs the receiving operation. By obtaining the management data of the terminal from the server, it is possible to determine the telephone number / media that can be used by the receiving terminal, convert the medium as needed, and control the transmission to the receiving terminal. This makes it possible to provide a communication system that can be applied to all receiving terminals having a communication control function, even if there is no compatibility such that the receiving side must have the same application as the transmitting side. Further, by clarifying a communication control function for practically using a media conversion that has not been clarified so far, a more practical communication system can be provided.

According to the media conversion method in the communication system of the present invention described in claim 19, the media input step of the transmitting terminal is a step of inputting image data and encoding image data. It has the following effects.

The transmitting terminal obtains the management data of the receiving terminal from the server, determines the telephone number / media that can be used by the receiving terminal, and based on the image data (media) input in the media input step of the transmitting terminal. It is possible to perform control to convert the data into a medium usable by the receiving terminal and to transmit the medium to the receiving terminal. This makes it possible to provide a communication system that can be applied to all receiving terminals having a communication control function, even if there is no compatibility such that the receiving side must have the same application as the transmitting side. Further, by clarifying a communication control function for practically using a media conversion that has not been clarified so far, a more practical communication system can be provided.

[0148] According to the media conversion method in the communication system of the present invention as set forth in claim 20, the media input step of the transmitting terminal is a step of inputting audio data and encoding audio data. It has the following effects.

The transmitting terminal obtains the management data of the receiving terminal from the server, determines the telephone number / media that can be used by the receiving terminal, and based on the voice data (media) input in the media input step of the transmitting terminal. It is possible to perform control to convert the data into a medium usable by the receiving terminal and to transmit the medium to the receiving terminal. This makes it possible to provide a communication system that can be applied to all receiving terminals having a communication control function, even if there is no compatibility such that the receiving side must have the same application as the transmitting side. Further, by clarifying a communication control function for practically using a media conversion that has not been clarified so far, a more practical communication system can be provided.

According to the media conversion method in the communication system of the present invention described in claim 21, since the media input step of the transmitting terminal is a step of inputting data other than image / audio data, the following is provided. It works.

The transmitting terminal obtains the management data of the receiving terminal from the server, determines the telephone number / media that can be used by the receiving terminal, and determines the data (media) other than the image / audio input in the media input step of the transmitting terminal. ), Convert it to media available to the receiving device,
It is possible to control transmission to the receiving terminal. This makes it possible to provide a communication system that can be applied to all receiving terminals having a communication control function, even if there is no compatibility such that the receiving side must have the same application as the transmitting side. Further, by clarifying a communication control function for practically using a media conversion that has not been clarified so far, a more practical communication system can be provided.

According to the media conversion method of the communication system of the present invention, in the media conversion step of the transmitting terminal, a media multiplexing function capable of multiplexing a plurality of media, and a usable media of the receiving terminal In the case where there are two or more, since it has a multiple media identification function capable of separating multiplexed data, the following effects are obtained.

It is possible to provide a communication system that can appropriately cope with multiplexing of a plurality of media.

[0154] According to the media conversion method of the communication system of the present invention, the extracting step of the transmitting terminal includes the step of confirming whether the destination of the receiving terminal or the available media has been extracted or not. Features and
Since it has a retransmission request function for requesting retransmission to the communication control step when data cannot be accurately extracted, the following effects are obtained.

According to the above retransmission request, it is possible to provide a communication system capable of accurately extracting the destination of the receiving terminal or the available media.

[0156] According to the media conversion method in the communication system of the present invention, the transmitting terminal has a display step of displaying information, and the media converting step of the transmitting terminal includes the step of transmitting the information by the transmitting terminal. Since the receiving terminal has a transmission media content display function of displaying which medium is transmitted as the receiving terminal in the display step based on the predetermined conversion form information, the following effects are obtained.

[0157] By observing the display on the display means by the user, it is possible to provide a communication system capable of accurately grasping which medium the transmission terminal intends to transfer is transmitted as the reception terminal.

[0158] According to the media conversion method of the communication system of the present invention, a transmitting terminal, a receiving terminal, and a server interposed between the transmitting terminal and the receiving terminal and managing the schedule of the receiving terminal are included. A media conversion method in a communication system comprising: a transmitting terminal having a communication control step of transmitting input media to a server irrespective of compatibility with a receiving terminal, wherein the server can use the receiving terminal. Since it has a media conversion step of performing media conversion based on the media and the transmission medium from the transmission terminal, and a transmission step of transmitting the conversion information to the reception terminal, the following effects are obtained.

In an environment in which a server having a schedule management function and a media conversion function is provided on a network, the transmitting terminal transmits the media to the server without recognizing the media available to the receiving terminal, and the server transmits the media from the transmitting terminal. Recognize the media received and the phone number of the receiving device,
It is possible to control the transfer of the media-converted data to the receiving terminal. This eliminates the need for the receiving terminal to have the function of accessing the server, so that it is possible to provide a communication system that can be applied to all receiving terminals having the communication control function between the server and the client system.

According to the media conversion method in the communication system of the present invention, a transmitting terminal, a receiving terminal, and a server interposed between the transmitting terminal and the receiving terminal and managing the schedule of the receiving terminal are provided. A media conversion method in a communication system comprising: a media processing step of inputting at least one or more media and processing the data into a transmittable data format; and a transmission-side line control step of controlling line connection. And a communication control step of making a line connection with a server and transmitting media input from the media processing step to a server via the transmission-side line control step regardless of compatibility with a receiving terminal, Is a server-side line control step for controlling line connection, and a schedule for managing the schedule of the receiving terminal A schedule management step; a determining step of recognizing media transmitted from the transmitting terminal; an extracting step of extracting a destination and an available media of the receiving terminal from the schedule managing step based on a time at which the media is received from the transmitting terminal; A media conversion step of performing media conversion using a predetermined conversion function protocol based on the available media and the transmission medium, and transmitting the conversion information to the receiving terminal via the server-side line control step based on the destination of the receiving terminal. With the steps, the following effects can be obtained.

In an environment in which a server having a schedule management function and a media conversion function is provided on a network, the transmitting terminal transmits the media to the server without recognizing the media available to the receiving terminal. Recognize the media received and the phone number of the receiving device,
It is possible to control the transfer of the media-converted data to the receiving terminal. This eliminates the need for the receiving terminal to have the function of accessing the server, so that it is possible to provide a communication system that can be applied to all receiving terminals having the communication control function between the server and the client system.

According to the media conversion method in the communication system of the present invention described in claim 27, the media processing step of the transmitting terminal is a step of inputting image data and encoding image data. It has the following effects.

The transmitting terminal transmits the image data (media) input from the media processing means of the transmitting terminal to the server without recognizing the available media of the receiving terminal. Recognition of the telephone number of the terminal and control of transferring the media-converted data to the receiving terminal can be performed. As a result, the receiving terminal does not need to have the function of accessing the server,
It is possible to provide a communication system that can be applied to all receiving terminals having a communication control function between a server and a client system.

According to the media conversion method in the communication system of the present invention described in claim 28, the media processing step of the transmitting terminal is a step of inputting audio data and encoding audio data. It has the following effects.

The transmitting terminal transmits the audio data (media) input from the media processing means of the transmitting terminal to the server without recognizing the available media of the receiving terminal. Recognition of the telephone number of the terminal and control of transferring the media-converted data to the receiving terminal can be performed. As a result, the receiving terminal does not need to have the function of accessing the server,
It is possible to provide a communication system that can be applied to all receiving terminals having a communication control function between a server and a client system.

[0166] According to the media conversion method in the communication system of the present invention described in claim 29, the media processing step of the transmitting terminal is a step of inputting data other than image / audio data. It works.

The transmitting terminal transmits data (media) other than the image / audio input from the media processing means of the transmitting terminal to the server without recognizing the media available to the receiving terminal, and the server receives the data from the transmitting terminal. It becomes possible to recognize the media and the telephone number of the receiving terminal, and to control the transfer of the media-converted data to the receiving terminal. This eliminates the need for the receiving terminal to have the function of accessing the server, so that it is possible to provide a communication system that can be applied to all receiving terminals having the communication control function between the server and the client system.

[0168] According to the media conversion method in the communication system of the present invention described in claim 30, in the media conversion step of the server, a media multiplexing function capable of multiplexing a plurality of media and a media usable by a receiving terminal are provided. 2
If there is more than one, it has the function of identifying a plurality of media that can separate the multiplexed data, so that the following effects can be obtained.

It is possible to provide a communication system that can appropriately cope with multiplexing of a plurality of media.

According to the media conversion method in the communication system of the present invention described in claim 31, the server can be separated into a server that manages the schedule of the receiving terminal and a server that performs media conversion. It has the following effects.

By providing each server with the schedule management function and the media conversion function of the receiving terminal, a communication system capable of reducing the load on the server can be provided.

According to the media conversion method in the communication system of the present invention described in claim 32, the LAN / ISDN /
Since the present invention can be applied to a communication network such as a PSTN or a communication network used in a PHS / mobile phone, the following effects can be obtained.

Communication networks such as LAN / ISDN / PSTN,
In a communication system in which a transmitting terminal, a receiving terminal, and a server are connected via a communication network used by a PHS / mobile phone, etc., even if there is no compatibility such that the receiving side must have the same application as the transmitting side, A communication system applicable to all receiving terminals having a communication control function can be provided. Further, by clarifying the communication control means for applying the media conversion which has not been clarified so far, it is possible to provide a more practical communication system. Further, the receiving terminal does not need to have the function of accessing the server, and a communication system applicable to all receiving terminals having the communication control function can be provided between the server and the client system.

[Brief description of the drawings]

FIG. 1 is a functional block diagram showing a configuration of a transmission terminal of a media conversion communication system according to a first embodiment of the present invention.

FIG. 2 is a sequence diagram showing an operation of a communication control procedure in the media conversion communication system according to the first embodiment of the present invention.

FIG. 3 is an explanatory diagram showing an example of a display unit for allowing a user to easily select a medium usable by a receiving terminal as a GUI in the media conversion communication system according to the first embodiment of the present invention.

FIG. 4 is a conceptual diagram showing a configuration of a media conversion communication system according to the first embodiment of the present invention.

FIG. 5 is a conceptual diagram showing a configuration of a media conversion communication system according to a second embodiment of the present invention.

FIG. 6 is a sequence diagram showing an operation of a communication control procedure in the media conversion communication system according to the second embodiment of the present invention.

FIG. 7 is a functional block diagram showing a configuration of a schedule management server of the media conversion communication system according to the first embodiment of the present invention.

FIG. 8 is a functional block diagram showing a configuration of a transmission terminal of a media conversion communication system according to a second embodiment of the present invention.

FIG. 9 is a functional block diagram showing a configuration of a schedule management server and a media conversion server of the media conversion communication system according to the second embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 101 Communication control unit for media conversion 102 Line control unit 103 Recipient information management unit 104 Possible media notification unit 105 Recipient information storage unit 106 Media conversion unit 107 Media conversion library unit 108 Camera 109 Image encoding unit 110 Microphone 111 Voice encoding Unit 112 LCD unit 113 image decoding unit 114 speaker 115 audio decoding unit 116 data unit 117 media conversion receiving unit 118 communication setting conversion unit 401, 501 transmission terminal 402, 502 reception terminal 403 schedule management server 503 schedule management server and media conversion Server 702 Receiving terminal schedule management unit 703 Capability search unit 801 Media processing unit 802 Communication control unit for server 902 Schedule management unit for server 907 Media conversion unit for server

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁶ Identification code FI H04M 11/00 302 H04Q 3/545 H04Q 3/545

Claims (32)

[Claims] 1. A communication system comprising, on a network, a transmitting terminal, a receiving terminal, and a server for managing a schedule of the receiving terminal, wherein the transmitting terminal is extracted from schedule information of the receiving terminal received from the server. Media conversion means for converting the available media of the receiving terminal based on the input media, and communication control means for transmitting the conversion information to the receiving terminal, wherein the server has a receiving terminal for a predetermined period registered in advance. A capability search unit for searching for an available terminal capability of the receiving terminal based on a request of the transmitting terminal from a schedule including available terminal capabilities of the transmitting terminal, and a capability transmitting unit for transmitting search information to the transmitting terminal. Communication system. 2. A communication system comprising, on a network, a transmission terminal, a reception terminal, and a server for performing schedule management of the reception terminal, wherein the transmission terminal inputs at least one or more media. Input means, communication control means for performing line connection with the server to request / receive schedule information of the receiving terminal, and transmission-side line control means for controlling line connection;
A communication protocol unit for realizing a communication protocol by linking the communication control unit and the transmission-side line control unit; an extraction unit for extracting a destination and an available medium of the reception terminal from schedule information of the reception terminal received from the server; Media conversion means for converting the available media of the receiving terminal based on the information and the media input from the input means using a predetermined conversion function protocol; and converting the converted information to the transmission side line control means based on the destination of the receiving terminal. Transfer means for transferring, the server, server-side line control means for controlling the line connection, schedule management means in which a schedule including a terminal capacity available to the receiving terminal for a predetermined period is registered,
A capability searching means for searching for available terminal capabilities of the receiving terminal from the schedule management means based on a request from the transmitting terminal, and a capability transmitting means for transmitting search information to the server-side line control means. Communication system. 3. The communication system according to claim 2, wherein said media input means of said transmitting terminal is means for inputting image data and encoding image data. 4. The communication system according to claim 2, wherein said media input means of said transmitting terminal is means for inputting audio data and encoding audio data. 5. The communication system according to claim 2, wherein said media input means of said transmitting terminal is means for inputting data other than image / audio data. 6. The media conversion means of the transmitting terminal, the media multiplexing function capable of multiplexing a plurality of media, and a plurality of media capable of separating multiplexed data when there are two or more available media of a receiving terminal. The communication system according to any one of claims 1 to 5, further comprising an identification function. 7. The extracting means of the transmitting terminal includes a data content confirmation function for confirming whether or not a destination of the receiving terminal or an available medium has been extracted, and a communication control means when data cannot be accurately extracted. The communication system according to claim 2, further comprising a retransmission request function for requesting retransmission. 8. The transmission terminal has display means for displaying information, and the media conversion means of the transmission terminal determines which medium a transmission terminal intends to transfer is transmitted as a reception terminal. The communication system according to any one of claims 1 to 7, further comprising a transmission media content display function of displaying on a display means based on predetermined conversion form information. 9. A communication system comprising, on a network, a transmitting terminal, a receiving terminal, and a server interposed between the transmitting terminal and the receiving terminal for performing schedule management of the receiving terminal, wherein the transmitting terminal is an input terminal. Communication control means for transmitting the obtained media to the server regardless of compatibility with the receiving terminal, wherein the server performs media conversion based on available media of the receiving terminal and transmission media from the transmitting terminal. And a transmitting means for transmitting the conversion information to the receiving terminal. 10. A communication system comprising, on a network, a transmission terminal, a reception terminal, and a server interposed between the transmission terminal and the reception terminal and performing schedule management of the reception terminal, wherein the transmission terminal has at least Media processing means for inputting one or more media and processing the data into a transmittable data format, transmission-side line control means for controlling line connection, and media input from the media processing means for line connection with a server Communication control means for transmitting to the server via the transmission-side line control means regardless of compatibility with the reception terminal, the server comprising: a server-side line control means for controlling line connection; and a reception terminal. Schedule management means for managing the schedule of the user, determining means for recognizing the media transmitted from the transmitting terminal, and receiving the media from the transmitting terminal Extracting means for extracting a destination and an available medium of a receiving terminal from the schedule management means based on the extracted time, and media converting means for performing media conversion using a predetermined converting function protocol based on the extracted available media and transmission medium. A transmission unit for transmitting the conversion information to the receiving terminal via the server-side line control unit based on the destination of the receiving terminal. 11. The communication system according to claim 10, wherein said media processing means of said transmitting terminal is means for inputting image data and encoding image data. 12. The communication system according to claim 10, wherein said media processing means of said transmitting terminal is means for inputting audio data and encoding audio data. 13. The communication system according to claim 10, wherein said media processing means of said transmitting terminal is means for inputting data other than image / audio data. 14. The media conversion means of the server, wherein: a media multiplexing function capable of multiplexing a plurality of media; and a multi-media identification function capable of separating multiplexed data when a receiving terminal has two or more available media. 14. The communication system according to claim 9, having a function. 15. The communication system according to claim 9, wherein the server is separable into a server that manages the schedule of the receiving terminal and a server that performs media conversion. 16. The communication system according to claim 1, wherein the communication system is applicable to a communication network such as a LAN / ISDN / PSTN or a communication network used for a PHS / mobile phone. 17. A media conversion method in a communication system having, on a network, a transmitting terminal, a receiving terminal, and a server that manages schedules of the receiving terminal, wherein the transmitting terminal is configured to receive the received terminal from the server. A media conversion step of converting the available media of the receiving terminal extracted from the schedule information based on the input medium; and a communication control step of transmitting the conversion information to the receiving terminal, wherein the server A capability searching step of searching for an available terminal capability of the receiving terminal based on a request of the transmitting terminal from a schedule including an available terminal capability of the receiving terminal for a period; and a capability transmitting step of transmitting search information to the transmitting terminal. A method for converting media in a communication system, comprising: 18. A media conversion method in a communication system having, on a network, a transmitting terminal, a receiving terminal, and a server for performing schedule management of the receiving terminal, wherein the transmitting terminal is configured to transmit at least one or more media. A media input step of performing input, a communication control step of performing line connection with a server to request / receive schedule information of a receiving terminal, a transmission line control step of controlling line connection, and the communication control step and the transmission side. A communication protocol step for linking the line control step to realize a communication protocol; an extraction step for extracting a destination and an available medium of the reception terminal from schedule information of the reception terminal received from the server; and inputting from the extraction information and the input step. Media available to the receiving terminal based on the media A media conversion step of converting using a predetermined conversion function protocol; and a transfer step of transferring conversion information to the transmission-side line control step based on a destination of a receiving terminal, wherein the server controls line connection. A server-side line control step, a schedule management step in which a schedule including a usable terminal capacity of the receiving terminal for a predetermined period is registered, and a usable terminal capacity of the receiving terminal from the schedule managing step based on a request from the transmitting terminal. And a capability transmitting step of transmitting search information to the server-side line control step. 19. The media conversion method according to claim 18, wherein the media input step of the transmitting terminal is a step of inputting image data and encoding the image data. 20. The method according to claim 18, wherein the media input step of the transmitting terminal is a step of inputting audio data and encoding the audio data.
A media conversion method in the communication system according to claim 1. 21. The media conversion method in a communication system according to claim 18, wherein said media input step of said transmitting terminal is a step of inputting data other than image / audio data. . 22. The media conversion step of the transmitting terminal includes a media multiplexing function capable of multiplexing a plurality of media, and a plurality of media capable of separating multiplexed data when the receiving terminal has two or more available media. 22. The media conversion method in the communication system according to claim 17, further comprising an identification function. 23. The extracting step of the transmitting terminal,
It has a data content confirmation function for confirming whether or not the destination of the receiving terminal or available media has been extracted, and a retransmission request function for requesting retransmission to the communication control step when data cannot be accurately extracted. A media conversion method in the communication system according to claim 18. 24. The transmitting terminal has a displaying step of displaying information, and the media converting step of the transmitting terminal determines as to which medium the media that the transmitting terminal tried to transfer is transmitted as the receiving terminal 24. The media conversion method in a communication system according to claim 17, further comprising a transmission media content display function of displaying the transmission media content in the display step based on predetermined conversion mode information. 25. A media conversion method in a communication system having a transmitting terminal, a receiving terminal, and a server interposed between the transmitting terminal and the receiving terminal and performing schedule management of the receiving terminal on a network, The terminal includes a communication control step of transmitting the input media to the server regardless of compatibility with the receiving terminal, wherein the server performs media conversion based on available media of the receiving terminal and transmission media from the transmitting terminal. A media conversion method in a communication system, comprising: performing a media conversion step; and transmitting a conversion information to a receiving terminal. 26. A media conversion method in a communication system having, on a network, a transmitting terminal, a receiving terminal, and a server interposed between the transmitting terminal and the receiving terminal and performing schedule management of the receiving terminal, The terminal performs a media processing step of inputting at least one or more media and processing the data into a transmittable data format, a transmission-side line control step of controlling a line connection, and a line connection with a server. A communication control step of transmitting the input media to a server via the transmission-side line control step regardless of compatibility with a receiving terminal, wherein the server performs a line connection control. And a schedule management step for managing the schedule of the receiving terminal, and the media transmitted from the transmitting terminal. A receiving step of extracting the destination and available media of the receiving terminal from the schedule management step based on the time at which the media was received from the transmitting terminal; and a predetermined step based on the extracted available media and the transmitting medium. A communication system, comprising: a media conversion step of performing media conversion using a conversion function protocol; and a transmission step of transmitting conversion information to a receiving terminal via the server-side line control step based on a destination of the receiving terminal. Media conversion method in. 27. The media conversion method according to claim 26, wherein the media processing step of the transmitting terminal is a step of inputting image data and encoding the image data. 28. The transmission terminal according to claim 26, wherein the media processing step is a step of inputting audio data and encoding the audio data.
A media conversion method in the communication system according to claim 1. 29. The media conversion method in a communication system according to claim 26, wherein said media processing step of said transmitting terminal is a step of inputting data other than image / audio data. . 30. The media conversion step of the server comprises: a media multiplexing function capable of multiplexing a plurality of media; and a multi-media identification capable of separating multiplexed data when a receiving terminal has two or more available media. 30. The media conversion method in the communication system according to claim 25, further comprising a function. 31. The media in a communication system according to claim 25, wherein the server is separable into a server that manages a schedule of the receiving terminal and a server that performs media conversion. Conversion method. 32. The media in the communication system according to claim 17, which is applicable to a communication network such as a LAN / ISDN / PSTN or a communication network used for a PHS / mobile phone. Conversion method.