JPH01200769A - Mixed mode communication system - Google Patents

Abstract

PURPOSE:To efficiently activate the memory of a receiving side by confirming whether the receiving side has the generic layout object of a document to transmit or not and executing the transmission of the information of the document except the object when the receiving side has it. CONSTITUTION:When a receiving side does not have the generic layout object of a transmitted document, the effect is responded and all the information of the document is transmitted. On the other hand, when the reception. Side has the generic layout object of the transmitted document, the effect is responded to a transmission side. Thus, in the transmission side, the fact that the reception side has the generic layout object can be confirmed. Then, the transmission side transmits the information of the document excluding the part of the generic layout object from the document to transmit. Thus, a communication time can be shortened and simplification can be executed.

Description

DETAILED DESCRIPTION OF THE INVENTION A) Field of Industrial Application The present invention relates to a communication method in a mixed mode terminal H for handling and communicating a mixed mode document containing character information and image information and having a layout structure.

BACKGROUND ART Conventionally, document communication using public telephone lines includes teletex, which handles character information, and facsimile, which handles image information. A system that was established to handle character information and image information at the same time was created in Showa []6.
This is mixed-mode communication in accordance with Notification 198 of the Ministry of Posts and Telecommunications in 1960.

In mixed mode communication, a document is divided into blocks, and the smallest unit block, a frame made up of blocks or frames, a page made up of blocks or frames, a page set made up of pages or page sets, a document made up of pages or page sets. This layout structure is used to compose a set of documents, so character information and image information can be handled efficiently. These blocks, frames, pages, page sets, and documents are called layout objects.

A terminal device for creating and communicating mixed-mode documents has a so-called word processing function since it handles characters and creates sentences 11.

The layout structure of such a mixed-mode document includes a specific layout structure and a generic layout structure. Specific layout objects are unique to each document, while generic layout objects can be used an unlimited number of times within a document, and can be used in other documents. It is also possible to use the reference from . Therefore, when creating a document, you can create a proposal or report by using generic layout objects for standard parts (ruled frames, titles, etc.) and creating specific contents (variable parts) using specific layout objects. It is possible to efficiently create and communicate standard documents such as

C) Problem to be solved by the invention When such a standard document is communicated between mixed-mode terminal devices, the receiving side already has a generic layout object that is a standard part before communication. There are many. However, according to the communication method based on the recommendation, even if the receiving side has the same generic layout object, the generic layout object must be transmitted, which requires communication time. Furthermore, the receiving side has two identical generic layout objects, which is not efficient in terms of memory usage.

2) Means for Solving the Problems In the present invention, the sending side inquires of the receiving side as to whether or not there is a generic layout object of the document to be sent, and the existence of the generic layout object on the receiving side is confirmed. In this case, the sending side uses a mixed mode communication method in which document information excluding the generic layout object is sent.

e) Effect: If there is a generic layout object for the document to be sent to the receiving side, the sending side should inquire and confirm the receiving side's pressure in advance, and send information about the document other than that generic layout object. This eliminates unnecessary communication.

f) Embodiment First, FIG. 2 shows a schematic configuration diagram of a mixed mode terminal device according to the present invention. fil l:'':, CRT as a display means, (211-iCRT (1) display control circuit that controls the display, (3) is a VRAM in which display data on the CRT (1) is stored, [ The image scanner (5) serves as a means of inputting 41Fi image information, and the keyboard (5) serves as an input means for character input, editing work, etc. This image scanner (4) and keyboard (5)
is connected to the control circuit (7) via the interface (6).

(8) is a printer which is one of the output means, (9) is a communication circuit connected to a public line, and (lOl is a system program for the control circuit (7) that controls the entire device including the word processing function. The system memory (11) is a document memory in which an edited or sent layout structure document is stored together with an information list to be described later.

Here, suppose that a document as shown in FIG. 3AK is to be transmitted. Figure 3A shows its layout structure, where ruled frames and fixed characters are laid out as generic (G) layout objects, and other specific contents (not shown as blanks in Figure 3A) are laid out as specific (G) layout objects. 8) It is laid out as a layout object.

The normal transmission procedure for mixed-mode documents is to transmit the document profile descriptor, if it exists, before all layout objects. If there is a generic layout object, the generic layout object is transmitted following the document profile descriptor. Regarding the layout objects in the lower layer of the generic layout object, the layout objects in the lower layer are sequentially transmitted according to the layout structure until the transmission of the text unit is completed. After the generic layout object is transmitted, the specific layout object is transmitted.
Similar to the transmission of generic layout objects,
Each layout object is transmitted sequentially according to the hierarchy.

Now, in the present invention, if a generic layout object of the document to be transmitted exists on the receiving side, the generic layout object is not transmitted. The communication procedure will be explained based on the command and response exchange diagram of each layer of the communication protocol shown in FIG. 4 and the flowchart shown in FIG.

Connect the line and session layer (1985 Ministry of Posts and Telecommunications Notification No. 196 Recommended Communication Method for Japanese Teletex Equipment)
CEIE II, REI" IP in CEIEII, REI" IP in 2007 (Reference) is used to check whether the receiving terminal device has the non-standard terminal function according to the present invention.If the receiving terminal device does not have the non-standard terminal function, the entire document is transmitted according to the normal transmission procedure as described above. communication of information.

If this non-standard terminal function is available, the sending side in the document layer adds the management information of the generic layout object shown in FIG. 5A to the private parameters of CDB (Arike CDC) and sends the data.

The generic object creation terminal identification code in Figure 5 is the number (telephone number) and abbreviation of the terminal that created the generic layout object, and the creation terminal generic object reference information is used when the document of the creation terminal refers to the generic layout object. This is reference information.

The receiving side receives the sending side's CDEI (or CD C
), in other words, it does not have the generic layout object of the document to be sent.
DC) and sends back the TtD date as a response, and communicates all the information of the document according to the above-mentioned normal transmission procedure. Then, an information list is stored in which the self-generic object reference information of FIG. 5B is added to the previously received management information (FIG. 5A). This self-generic object reference information is reference information of a generic layout object corresponding to the management information in the self-terminal (receiving side). Note that this information list is added in the terminal to #5 where a generic layout object is created or received.

If the receiving side has the management information added to the CDS (or CDC'1) from the sending side, that is, it has the generic layout object of the document to be sent, the receiving side will receive the CD5 from the sending side. (or CDC), an RDS to that effect is returned.When the sending side confirms by receiving the RDS that the receiving side has the generic layout object, the generic layerer and the receiving side are sent from the document to be sent. On the side, it completes the document from the information of the received document and the generic layout objects it already has as indicated by the information list.

Figure 6 shows an example of the correlation between information lists.
Head office 1 is a terminal for creating generic layout objects. The management information is the same from the head office to branch AC or branch B), from branch AC or branch B) to the head office, or from branch B to branch A, so the generic layout object is the same. Communication of layout objects is omitted, and wasteful use of memory by having two identical generic layout objects i on the receiving side is avoided. Further, even if the number of branch offices increases, if the same generic layout object is received every time, it is possible to perform communication without the generic layout object in the same manner as in branch office A or branch office B.

g) Effects of the Invention As is clear from the above description, the present invention checks in advance whether the receiving side already has a generic layout object for the document to be sent, and if it does, it sends the generic layout object to the recipient. By transmitting information on the removed documents, communication time is shortened and simplified. Furthermore, it can also contribute to efficient use of memory on the receiving side.

[Brief explanation of the drawing]

The drawings are all diagrams related to the present invention: FIG. 1 is a flowchart, FIG. 2 is a schematic configuration diagram of a mixed mode communication terminal device, FIG. 3 is a diagram showing an example of a layout structure, and FIG. 4 is a diagram showing an example of an information list. FIG. 5 is a diagram showing the exchange of commands and responses in each layer of the communication protocol, and FIG. 6 is a diagram showing an example of the correlation of information lists. m・CRT, f31・4RAM, (+-)・A image x+yana, (5)...Keyboard, (7)...Control circuit, (9)...Communication circuit, flo)...System Memory, Q+l...Document memory.

Claims (1)

[Claims] 1) In a mixed mode communication method for communicating a document having a layout structure, the sending side informs the receiving side of the presence or absence of a genetic layout object of the document to be sent on the receiving side. A mixed mode communication system characterized in that, when the existence of the above-mentioned genetic layout object is confirmed on the receiving side after making an inquiry, the sending side sends information on the document excluding the above-mentioned genetic layout object.