JPH06284128A - Communication server equipment and terminal equipment connecting thereto - Google Patents

Abstract

PURPOSE:To allow a server to confirm it that data are delivered to a destination terminal and to reduce a stored reception data quantity in a communication server system. CONSTITUTION:Upon the receipt of data from a public network 5, the data are stored in a secondary storage section 111 of a server 1. In this case, data requiring coding are coded by a companding section 109, the data quantity before coding and that after coding are compared, and after the data which have smaller quantity are stored, the other data are deleted. Then the data are sent to terminal equipments 2-4 depending on their destinations, and when no destination is listed, an address list of the terminal equipments 2-4 connecting to the server 1 is sent to a data sender. Moreover, a terminal equipment receiving the data from the server 1 sends a message of acknowledge to the sender. Furthermore, when data are sent from a terminal equipment, the server 1 calculates its required time in advance.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention is applicable to, for example, terminals of different types,
Also, the present invention relates to a communication server that performs services such as communication via various public networks such as LAN, WAN (wide area network) construction and intra-WAN communication, storage, exchange, and conversion of communication data.

[0002]

2. Description of the Related Art In recent years, a local area network (LAN) for sharing hardware assets such as a hard disk and a printer and software assets such as various application software and a common database among a plurality of computer terminals (client terminals). Construction is thriving,
The effective use of assets is actively carried out.

Further, public communication networks (ISDN, PSTN)
In the field of communication utilizing the, a system in which a communication function is added to a computer terminal and data communication is directly performed from a computer terminal to a communication terminal at a remote place through a communication network is drawing attention.

According to such a system, application software (word processor, DT) on a computer terminal is
Documents, images, programs, etc. created / edited in P, graphics, etc. can be sent and received via a public communication network, so a hard copy of an image can be transferred using a facsimile or a soft copy can be carried. It is possible to save time, cost, resources, etc., as compared with the conventionally used method.

Further, since there is no deterioration of the image quality caused by the recording process by the printer and the reading process by the scanner, there is an advantage that the image can be transferred with the image quality as it is created.

In a communication server system in which a system including a server device capable of performing overall processing of each client terminal constituting a LAN is connected to the above system, the server device receives data received from a partner communication terminal as a client. It is also possible to provide services such as automatic distribution to terminals.

Further, the transmission data is stored in the server device, and transmission services such as data retransmission, time designation transmission and confidential transmission at the time of transmission error, and reception data are converted into a file format like each client terminal, It is also possible to provide a reception service such as file transfer on the LAN.

In the automatic distribution process, individual client-specific information such as the file format and file size used by each client terminal connected to the LAN is stored and managed in the server device in advance, and data is sent to the client terminal. The partner who wants to send the data specifies the number of the client terminal using the server device by using the secondary address of the communication line, and sends the data.

Upon receiving the data, the server device retrieves the client information (for example, the IP address of LAN) from the client terminal number designated by the sender as the secondary address, and discriminates the client terminal from the retrieved information. The file format is converted into a file format compatible with the client terminal, at the same time, accompanying image processing is performed, and then the data is automatically transferred to the receiving client terminal via the LAN.

[0010]

In the case of automatic distribution processing in the above-mentioned conventional communication server system,
A procedure is used in which the server device receives data from the partner communication terminal, then determines the receiving client terminal from the client identifier in the secondary address input by the sender, and transfers the data to the terminal via the LAN. .

Therefore, when some trouble occurs in the server device during the process of transferring the received data to the client terminal, for example, when the client identifier is not input to the secondary address, or when the secondary address is structurally set, In a communication procedure that does not have (analog system such as PSTN), even if it is judged that the communication has been normally completed and the partner sender has surely completed the data transmission to the client terminal, the data is actually stored in the server device. There is a case that it is stored in the and is not in the hands of the client terminal or the user.

However, in the conventional system, for example, when the other party who transmits data to the client terminal does not know the number of the destination client terminal, the data received by the server device is temporarily stored as an unknown destination document. The storage device is typically stored in the storage device in the server device.

In this case, a system for managing the server device by the data sender transmitting the data transmission to the user of the receiving client terminal in some form or by managing the contents of the received data stored in the server device. The receiver could not confirm the data addressed to himself / herself on the client terminal until the administrator successively confirmed the recipient of the data and transferred it to the corresponding client terminal.

As a result, the immediacy of the received data is lost, and if the reception of the unknown destination data is repeated, the capacity of the storage device in the server device is reduced and the efficiency of the entire system is deteriorated. There was a problem that could happen.

In addition, the above-mentioned transmission / reception data accumulation,
It is necessary to secure a stable storage capacity for the exchange service.

However, in the case of the conventional system configuration, new data is generated in the server device in units of data conversion processing such as transmission / reception processing and image processing, and this is left unattended.

When the above processes are continuously performed, it becomes difficult to secure a storage capacity for data to be newly processed, and there is a problem that the above service may not be satisfactorily performed. If data transmission and reception are repeated and the storable capacity decreases, it is possible to easily think of a situation in which even the storage capacity required for data transmission and reception itself cannot be secured, and communication itself cannot be performed.

Further, in the conventional server system, the number of transmission requests from the client terminals is registered in the server device, whether the server device is currently performing operations such as transmission and reception, etc. It was not possible to retrieve information on the operating status from the client terminal.

For example, when the user needs to urgently transmit data from the client terminal, the data may be transmitted depending on the number of transmission requests stored in the server device or the presence / absence of reception operation. It may take a considerable amount of time to be received first.

However, since the data or the transmission request is accumulated in the server device without notifying the user, in reality, even if the data is not transmitted until a considerable time has elapsed, the user immediately recognizes it. There is a problem that the server device performs a transmission operation and the data looks as if it reaches the destination.

The present invention has been made in view of the above-mentioned prior art, and an object of the present invention is to provide a terminal device capable of confirming at a transmission source that a transmission destination terminal has received data.

It is another object of the present invention to provide a communication server device in which the effective storage capacity does not decrease more than necessary due to the accumulated data.

It is another object of the present invention to provide a server device which can inform the user of the status of data stored in the server.

[0024]

In order to achieve the above object, the communication server device of the present invention has the following configuration.

A communication server device connected between a communication network and a terminal, the storage means for storing a list of addresses of the connected terminals, and the presence / absence of a destination of data received from the communication network is determined. Determining means, reading means for reading the transmission source from the received data according to the determination result by the determining means, and means for transmitting the list stored in the storage means to the transmission source read by the reading means as the destination. With.

Further, the communication server device connected between the communication network and the terminal, the determination means for determining whether to decrypt the received data, and the received data is decrypted based on the determination result. Decoding means, comparing means for comparing the amount of data before decoding with the amount of data after decoding by the decoding means, and means for storing a smaller amount of data based on the comparison result. Prepare

A communication server device connected between the communication network and the terminal, which receives the transmission data from the transmission source terminal, and based on the amount of the transmission data and the communication environment, Calculation means for calculating the time required for transmission,
And means for transferring and displaying the time calculated by the calculating means to the transmission source terminal of the transmission data.

Further, the terminal device of the present invention has the following configuration.

A terminal device which is connected to a communication server and communicates with a communication network via the communication device, and which records a communication record including a transmission source of data received via the communication server, and a predetermined unit. Storage means for storing the message,
The message stored in the storage means is sent to the selecting means for selecting a desired data record from the communication records recorded in the recording means and the transmission source included in the communication record selected by the selecting means. And transmitting means for transmitting.

[0030]

With the above-described structure, the transmission of the data can be confirmed at the transmission source in response to the reception of the data from the terminal to the transmission source. Also, the address list of the terminal is sent to the sender of the data whose destination is unknown. Also, the received data can be stored as a smaller amount of data. Also, the time required for transmission can be known in advance, and the completion time of transmission can be predicted.

[0031]

[Embodiment] Communication according to an embodiment of the present invention
The configuration and operation outline of the server system will be described in detail with reference to the drawings. [First Embodiment] FIG. 1 shows communication of the embodiment.
It is a schematic block diagram of a server system.

The communication server system comprises a communication server device 1 and a plurality of computer terminals (client terminals) 2, 3 and 4, and a LAN (local area network) by a network operating system (NOS) dedicated to the server device. Make up.

The communication server device 1 is provided with a physical interface connectable to a digital or analog public communication network 5 and a physical interface dedicated to LAN, and the client terminals 2 to 4 connected to the server device 1 are , Communication terminal 6 or communication terminal 7 using the communication means provided in the server device.
Then, it becomes possible to send and receive data via the public communication network 5.

FIG. 2 is an internal block diagram of the communication server device 1 according to an embodiment of the present invention.

The communication server device 1 is provided with a physical interface that can be connected to the public network 5 and can perform data communication with the partner communication terminal via the public network 5.

The communication control unit 103 is composed of a DCE function, a communication protocol, and a module group for performing a communication procedure, which are required for the data communication via the public network 5 (digital or analog communication network). And line connection,
It performs various controls necessary for communication such as data link, function negotiation (negotiation) between communication terminals, and synchronization control. The server device 1 includes a main control unit 10 in addition to the communication control unit 103.
4, LAN control unit 105, communication management unit 106, file management unit 107, image processing unit 108, compression / decompression unit 109,
It comprises a primary storage unit 110, a secondary storage unit 111, a client management unit 112, and a distribution processing unit 113.

The main control unit 104 controls the entire server device, and comprises a microprocessor and its peripheral circuits.

The LAN control unit 105 is equipped with a circuit for realizing a communication procedure such as a LAN-dedicated communication protocol, and the like.
Data transfer between a client on the AN and the server device 1 is executed and controlled according to a communication procedure.

The communication management unit 106 performs order control for a plurality of transmission requests, packet division of transmission documents, packet assembly of documents received by the communication control unit 103, and request communication to the communication control unit 103.

The file management unit 107 is connected to the secondary storage unit 111, which is a large-capacity storage device, and stores the transmitted / received document in the storage device after the communication management unit 106 performs the processing associated with the transmission / reception. Or the secondary storage unit 1
11 manages files such as various documents already stored.

The image processing unit 108 is involved in overall image processing of image data handled by the server device, such as scaling of image data, resolution conversion, and pixel gradation conversion.

The compression / expansion unit 109 encodes / decodes binary or multivalued pixel data.

The primary storage unit 110 is a temporary storage device used in transmission / reception processing and image processing, and is composed of RAM and the like.

The secondary storage unit 111 comprises a large-capacity storage device, and is used as a program area for storing documents and controlling the server device.

The client management unit 112 collectively manages the unique information (client identifier, file format, display image size, etc. input by the user from the operation panel on the client terminal) of each client terminal using the server device.

The distribution processing unit 113 controls various processes until the received document is transferred to the receiving client terminal.

FIG. 10 shows the configuration of each client terminal. In the figure, the communication interface unit 4
3 is connected to the server 1. The user interface unit 41 controls data transfer between the client and server, controls the operation panel 44, stores and manages files such as documents in the storage unit 42 on the client terminal. In addition, the user gives an instruction to the terminal by inputting from the operation panel 44, and the data and status are displayed on the display unit 45.
Is displayed in.

The processing performed by the server device 1 configured as described above will be described below in detail with reference to the flow charts of FIGS.

<Reception Processing> Part of the processing of the server device 1 (including part of the processing on the client terminal) when the document transferred from the communication terminal 6 to the client terminal 3 (see FIG. 1) is received. Flowchart is shown in Figure 3 and Figure 4.
As shown in FIG.

The flowchart of FIG. 3 is started after a series of communication phases of calling, line connection, function negotiation (negotiation), data transfer, line disconnection, and communication end.

First, the communication control unit 103 receives a document and stores it in the primary storage unit 10 (S301).

The communication control unit 103 notifies the communication management unit 106 of the reception of the document, and when the reception is normally completed, the compression method of the received document, the data size of the document, the primary storage in which the document is stored. The storage address in the unit 10 is recorded in the document information file, and the communication record of the reception time, the sender address, the secondary address, etc. is written in the communication record file.
One file is passed to the communication management unit 106.

The communication management unit 106 reads the storage address recorded in the received document information file and extracts the document from the primary storage unit 10. The extracted document, the communication record file, and the document information file are passed to the file management unit 108 (S302).

The file management unit 108 stores the delivered document, communication record file, and document information file in the secondary storage unit 111, and records the communication management file (management information of the various files such as storage addresses of documents etc.). Is updated) (S303).

Next, the main control unit 104 requests the compression / expansion unit 110 to expand the document, and the compression / expansion unit 11
Decompression processing is performed with 0 (S304).

Then, the main control unit 104 makes a client identifier at the secondary address in the communication record file (the sender of the document fills in the secondary address. Based on this identifier, it is determined to which client on the LAN the document belongs). Search whether is written (S
305).

If the client identifier is written, a distribution processing command for the received document is sent to the distribution processing unit 113 (S306).

Details of the distribution processing field are shown in FIG. In FIG. 5, the distribution processing unit 13 reads the client identifier from the communication record file (S50).
1) A client identifier correspondence table stored in advance in the secondary storage unit 111 or the like is searched to determine the IP address of the corresponding client terminal (S502 to S50).
3).

If the document requires some image processing (S504 to S505), the document is stored (S506), and the received document and the communication record file are sent to the client terminal 3 through the LAN control unit 105. And transfer (S507). The image processing in step S505 is shown in FIG. The image processing is performed by the image processing unit 108. First, a client information file that records the resolution, size, file format, etc. for each client is searched (S60
1) First, a necessary process is selected in comparison with the document information file of the document to be processed (S602). The client information file may be one in which necessary data is registered using the same table as the client correspondence table. If the required process is selected, it is executed (S603-
S607).

The image distribution is completed as described above.

The user interface unit 41 of the terminal 3 which has received the document and the communication record file stores the document and the communication record file in the storage unit 42 of the client terminal 3.

Upon receiving the transfer end notification from the distribution processing unit 113, the main control unit 104 sends a document reception notification to the receiving client terminal 3 (S307).

On the other hand, the client terminal that has received the document can perform the processing shown in FIG.

When the user wants to check the document addressed to himself / herself on the client terminal, a display request is sent from the operation panel 44 to the user interface section 41.

When the user issues a document display request command (S401), the user interface unit 41 stores the instructed document in the storage unit 42.
From the communication recording file corresponding to the displayed document (S402), and at the same time, the document reception time and the sender address are read (S404) and displayed on the display unit 45. The list is displayed on the screen (S405).

If the user sees the display and determines that it is necessary to send the receipt notification of the document to the sender, he / she inputs it.

When an instruction to send a reception notice is issued (S40)
6-YES), the user interface unit 41 that has received the transmission request command is stored in the storage unit 42 in the client terminal.
The reception notification document stored in advance is extracted (S407), the sender name previously input is added to it (S408), and a transmission request is issued to the server device 1 (S409).

Upon receiving the transmission request, the server device 1 transmits the reception notification document to the partner communication terminal by the normal transmission process.

By the above procedure, it is possible to send the fact that the document has been received from the receiving terminal to the transmission source, and it is possible for the transmission source to confirm that the transmitted document has been delivered to the destination terminal. .

Although the procedure by the server device 1 described in the flow chart is described as a series of processes performed by the respective parts of the server device 1, it is important to maintain the coordination of the respective parts and control the performance of the processes. It can be said that the flowchart is a procedure for controlling each unit by the main control unit 104. The same applies to the flow charts of the present embodiment and the embodiments described subsequently. [Second Embodiment] As a second embodiment, a different procedure of the receiving process under the system having the same configuration as the first embodiment will be described. In the present embodiment, when the server receives the data for which the secondary address is not designated, the client identifier correspondence table is sent with the primary address of the received data as the destination, and the received data is erased.

In the first embodiment, the client identifier is input in advance and is treated as the information stored in the server, but in this embodiment, the input of the client identifier will be described first.

(Enter Client Identifier) User (L
From the operation panel 44 on the client terminal, the system administrator of the AN) provides the LAN (IP) address held by the client terminal connected to the server device 1 and the client identifier arbitrarily determined in the system, Input from the operation panel 44.

The user interface unit 41 of the terminal that has received the input communicates with the LAN control unit 105 in the server device 1 and passes the input client identifier value and the like to the server device 1.

Client management unit 11 in the server device 1
2 receives the value of the client identifier, creates a correspondence table of the client terminal name, the client identifier, and the IP address from the value, and requests the file management unit 8 to store it in the secondary storage unit 111. This procedure is the same for the input of the client identifier in the first embodiment.

(Reception Processing) A procedure for the server 1 to receive data via the public network 5 will be described with reference to the flowchart of FIG.

Consider transmitting a document from the communication terminal 7 to the client terminal 3.

When a series of communication states such as incoming call, line connection, communication function negotiation (negotiation), data transfer, line disconnection, and communication end are completed, the communication control unit 103 which has acquired the document temporarily stores the received document. Part 11
It is stored in 0 (S701). The delivery processing unit 113 receives the destination information (primary / secondary address) of the received document from the communication control unit 103.

The delivery processing unit 113 reads the value of the client identifier written by the sender at the secondary address in the received destination information, and searches the client identifier correspondence table with that value. (S702).

If the client identifier is written in the secondary address (S703-YES), the distribution processing unit 113 requests the client management unit 112 to extract the client information file corresponding to the client identifier. (S704). Next, the delivery processing unit 113
Reads the file format, IP address, etc. of the terminal designated as the secondary address from the client information file, and if the document requires image processing, processes it in the image processing unit 108 (compositing, file format). Image processing such as conversion (see FIG. 6) is requested (S705).

The document and IP address for which the image processing has been completed are passed to the LAN control unit 105, and the LAN control unit 10
5 is a user interface unit 4 in the client terminal 3.
1 is communicated with to perform document transfer processing (S70).
6).

On the other hand, when there is no input value of the identifier by the sender at the secondary address of the received document (S7
03-NO), the distribution processing unit 113 reads the primary address of the received document (S707), requests the file management unit 107 to retrieve the client identifier correspondence table created by the client management unit 112, and stores it in the secondary storage. The client identifier correspondence table extracted from the unit 111 is read (S708). The client identifier correspondence table is passed to the communication management unit 106 together with the primary address (S70).
9).

The communication management unit 106 performs necessary processing on the document (client identifier correspondence table) to be transmitted, and requests the communication control unit 103 to transmit the primary address as the transmission destination. The communication control unit 103 connects the primary address destination to the line and transmits the client identifier correspondence table (S710).

The distribution processing unit 113, which has been notified from the communication management unit 106 of the normal end of the transmission, operates the file management unit 107.
Is instructed to delete the previously received document (S711), and the whole process is terminated.

According to the above procedure, the sender of the document notifies the receiving user of the transmission of the document by another system, and the system administrator confirms the contents of the received document and transfers the document to the receiver of the document. Without it, the receiving client will be able to see the documents addressed to it.

Therefore, the immediacy of the received document can be maintained, and the excessive storage state of the destination unknown document in the server device can be avoided. Therefore, the situation of insufficient storage capacity in the server device can be avoided. [Third Embodiment] As a third embodiment, a server device that stores data in a format that can be stored in a smaller size in a system having the same configuration as the first embodiment will be described. In this embodiment, the client terminal 3 sends the server device 1 a communication terminal 6
Described below is a case where a request to send a document to is made.

(Transmission Processing) The user is the client terminal 3
The upper user interface unit 41 is started up, the transmission document name, the address on the communication line of the communication terminal 6 and the communication line type to be used are input from the operation panel 44 to the user interface unit 41 and transmitted to the server device 1. Make a request.

The user interface unit 41 uses the input information as a transmission request file to set the LA in the server device 1.
It is sent to the N control unit 105.

Upon receiving the request, the LAN control unit 105 in the server device 1 uses the LAN communication protocol / communication procedure to perform the communication between the client and the server, and the transmission request file indicating the contents of the transmission request and the transmission document (image data). Is acquired from the client terminal 3.

The acquired transmission document and transmission request file are stored in the primary storage unit 110.

The processing procedure by the communication server 1 will be described below with reference to the flowchart of FIG.

The main control unit 104 reads the transmission request file from the primary storage unit 110 (S801) and requests the image processing unit 8 for conversion processing if image processing is required (S802 and S803). The image processing procedure in step S803 is the processing procedure described with reference to FIG. 6, and is as follows.

The image processing unit 108 determines the type of image processing to be performed from the contents of the transmission request file, and converts the transmission document into a file format (binary or multivalued pixel data) that can be encoded, Alternatively, the image is enlarged or reduced to the requested size, or resolution conversion or gradation conversion processing is performed, and the image is passed to the main control unit 104.

When the image processing is completed in this way, the process proceeds to step S804.

The main control unit 104 judges whether or not the image data needs to be encoded (S804), and if necessary, passes the image data to the compression / expansion unit 109 to determine the type of line to be connected,
The document is encoded by a corresponding encoding method according to conditions such as the type of the partner communication terminal (S805).

Next, the communication management unit 106 receives the encoded document and sends a transmission command to the communication control unit 103.

The communication control unit 103 performs the process of connecting the communication line with the partner terminal and the process of transmitting the document received from the communication management unit 106 (S806).

The file management unit 107, which has received the notification of the normal end of transmission, calculates the data sizes of both the document before encoding and the document after encoding which have received the transmission request from the client terminal 3 (S807).

If the size of the encoded data is smaller (S808-NO), the file management unit 107 stores the encoded data in the secondary storage unit 111 (S809) and stores the original image data in the primary storage. Delete from section 110 (S81
0).

Further, in the case where the image quality of the original image data is fine and the code data is larger (S808-YE).
In S), the file management unit 7 stores the original image data in the secondary storage unit 111 (S811) and deletes the code data from the primary storage unit 110 (S812).

According to the above procedure, when the server device completes the transmission process and stores the document in the storage device, the original image data and encoded data are compared, and the smaller data size is stored and stored. The storage device in the server device can be used more efficiently than the above method.

Also, the storage capacity can be easily secured, and the transmission / reception service and transmission / reception operation of the server device are less likely to be disturbed. [Fourth Embodiment] As a fourth embodiment, a server device having the same configuration as the first embodiment and capable of notifying a user of the time when transmission ends will be described. In this embodiment, from the client terminal 3 to the server device 1,
A case in which a document transmission request is made to the communication terminal 6 will be described.

(Transmission Processing) The user is the client terminal 3
The upper user interface unit 41 is activated, the designation of the document name to be transmitted, the communication address of the destination communication terminal 6, the communication line to be used, etc. are input from the operation panel 44, and a transmission request is issued.

The user interface unit 41 sends the input items from the user to the server device 1 as a transmission request file.

Upon receiving the request, the LAN control unit 105 in the server device 1 uses the LAN communication protocol / communication procedure to perform the communication between the client and the server, and sends the transmission request file indicating the content of the transmission request and the transmission document to the client. It is acquired from the terminal 3. The main control unit 104 stores the transmission request file and the transmission document in the primary storage unit 11. Hereinafter, the processing procedure by the server device 1 will be described with reference to the flowchart of FIG.

The file management unit 107 reads the number of transmission requests stored from the client terminal to date, the data size of each transmission document, the transfer speed of the communication line to be used, etc. (S901), and sends the transmission request. Calculate the time required to complete the transmission of the received document and transfer of the document to the partner communication terminal (S
902).

The LAN control unit 105 has the user interface unit 4 on the client terminal 3 which has issued the transmission request.
The calculated value is transferred to 1 (S903).

The user interface unit 41 on the client terminal 3 displays the received calculated value on the display unit 45 of the client terminal 3 (S904).

After confirming the required time, the user operates the transmission request button or the cancel button on the operation panel 44 to determine whether to continue or withdraw the transmission request, and input according to the determination. I do. If the continuation of the transmission request is selected (S905-YES), the user interface unit 41 again transfers the dummy transmission request to the server device 1.

Steps S904 to S905 are processing on the client terminal, and the procedure of the server 1 is to wait for data from the terminal after step S903.

Upon receiving the dummy transmission request from the client terminal, the file management unit 107 passes the transmission request to the communication management unit 106.

The communication management unit 106 stores the received transmission request (S906) and stores it until the transmission request becomes executable (S907-NO).

When the transmission request becomes executable (S907-YES), the communication management unit 106 sends a transmission command to the communication control unit 103 (S90).
8).

The communication control unit 103 which has received the transmission command
Transmits the transmission document to the other party (S90
9).

On the other hand, when the user selects the withdrawal of the transmission request at the client terminal, the user interface 41 sends the transmission withdrawal request file to the server device 1.
Forward to.

The file management unit 10 that has received the transmission withdrawal request file deletes the transmission request file and the transmission document from the primary storage unit 110 (S910), and ends the processing.

According to the above procedure, when the user urgently wants to send a document from the client terminal, it becomes possible to know the time when the document arrives at the destination even when the server device 1 performs the sending operation.

Therefore, from the user's point of view, it is possible to prevent the document which should have been transmitted, from having not arrived at the destination yet and being stored in the server device.

At this time, the user can also take some kind of avoidance action regarding document transmission.

The present invention may be applied to a system composed of a plurality of devices or an apparatus composed of a single device. Further, it goes without saying that the present invention can be applied to the case where it is achieved by supplying a program to a system or an apparatus.

[0120]

As described above, the terminal device according to the present invention has an effect that it can confirm that the destination terminal has received the data.

Further, the server device according to the present invention has an effect that the storage capacity does not decrease more than necessary due to the accumulated data.

Furthermore, there is an effect that the user can be informed of the status of the data stored in the server.

[Brief description of drawings]

FIG. 1 is a block diagram showing a schematic configuration of a communication server system according to an embodiment.

FIG. 2 is an internal block diagram of a communication server device 1 according to an embodiment.

FIG. 3 is a flowchart showing a receiving process by the server device of the embodiment.

FIG. 4 is a flowchart showing details of reception confirmation notification processing by the server device of the embodiment.

FIG. 5 is a flowchart showing details of distribution processing by the server device of the embodiment.

FIG. 6 is a flowchart illustrating details of image processing performed by the server device according to the embodiment.

FIG. 7 is a flowchart showing a receiving process by the server device of the second embodiment.

FIG. 8 is a flowchart showing a transmission process by the server device of the third embodiment.

FIG. 9 is a flowchart showing a transmission process performed by the server device of the fourth embodiment.

FIG. 10 is an internal block diagram of a client terminal according to the embodiment.

[Explanation of symbols]

 1 communication server device, 2, 3, 4 client terminal, 5 public line network, 6, 7 communication terminal, 103 communication control unit, 104 main control unit, 105 LAN control unit.

Claims (4)

[Claims] 1. A terminal device, which is connected to a communication server and communicates with a communication network through the terminal device, and which records a communication record including a transmission source of data received via the communication server, A storage unit for storing a predetermined message, a selection unit for selecting a desired data record from the communication records recorded in the recording unit, and a transmission source included in the communication record selected by the selection unit. And a transmission unit that transmits the message stored in the storage unit. 2. A communication server device connected between a communication network and a terminal, the storage means storing a list of addresses of the connected terminal, and the presence / absence of a destination of data received from the communication network. Determination means for determining, a reading means for reading a transmission source from the received data in accordance with a determination result by the determination means, and a list stored in the storage means with the transmission source read by the reading means as a destination A communication server device comprising: 3. A communication server device connected between a communication network and a terminal, which comprises judging means for judging whether or not to decode received data, and decoding the received data based on the judgment result. Decoding means, comparing means for comparing the amount of data before decoding with the amount of data after decoding by the decoding means, and means for storing a smaller amount of data based on the comparison result, A communication server device comprising: 4. A communication server device connected between a communication network and a terminal, comprising means for receiving transmission data transferred from a transmission source terminal, and an amount of the transmission data and a communication environment. A communication server comprising: a calculation unit that calculates a time required for transmission to a destination communication terminal based on the calculation unit; and a unit that sends the time calculated by the calculation unit to a transmission source terminal of the transmission data. apparatus.