JPH04100370A - Image transmission system of mixed mode terminal device - Google Patents

Abstract

PURPOSE:To prevent a signature from being used illegally by fractionizing a specific block into plural blocks which include overlap parts and sending them once an image block arranged in a document is specified as the specific block. CONSTITUTION:When a mixed mode document is prepared, document information consisting of a character string which is generated previously is called and displayed and the position and size of the image block which is arranged in the display are specified; and a scanner 7 reads the image of, for example, the signature displayed in the image block and the read data is displayed on a screen. After the data is edited, the image block is specified as the specific block. A CPU 1 converts the specific block of the mixed mode information into a state wherein the block is fractionized into areas including the overlap parts and sends the data. Consequently, the image of the specific block can not be reused on a reception side unless a specific block processing function is provided, and an image of the signature, a seal impression, etc., is prevented from being reused illegally by others.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an image transmission system for a mixed mode terminal device.

[Prior Art] Generally, in a mixed-mode terminal device that can send and receive document information containing a mixture of text information and image information, received mixed-mode document data can be reused5.
It is possible to copy part of the text information of a mixed mode document to another document, and to use the image information in another document.

[Problems to be Solved by the Invention] However, such conventional devices have the following disadvantages.

In other words, in general, mixed-mode terminal devices have very high image quality when recording and outputting received information, and when mixed-mode document data is reused for another document, the image of the reused data will not match the original mixed Since the image quality is the same as that of the mode document, the reused data image has the same effect as the original document.

For this reason, there is a risk that, for example, images of signatures and seals may be misused by others regardless of the person's will.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide an image transmission method for a mixed-mode terminal device that can limit the reuse of mixed-mode document data.

[Means for Solving the Problems] The present invention includes editing means for specifying an image block to be placed in one document as a specific block, and divides the specific block into a plurality of blocks with overlapping parts and transmits the divided blocks. ing.

In addition, it is equipped with an editing means for specifying an image block to be placed in a document as a specific block, and when transmitting data, the image block specified as a specific block is converted into a predetermined image and sent, while when receiving data, it is included in the received data. The image information of a specific block is inversely converted to the original image and then displayed.

[Effects] Therefore, the receiver cannot use the image of the signature included in the mixed-mode document in other mixed-mode documents as is, and the misuse of the signature can be prevented.

[Embodiments] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 shows a mixed mode terminal device according to an embodiment of the present invention, which uses an 15DN as a transmission path and is equipped with a pseudo video transmission function.

In the figure, a CPU (central processing unit) 1 executes the processing functions of this mixed mode terminal device.
The ROM (read-only memory) 2 stores fixed data such as character font data and a part of the processing program executed by the CPU 1, and the RAM (random access memory) 3 stores fixed data such as character font data. It is used for work areas, etc.

A VRAM (video RAM) 4 is for storing display data to be displayed on the CRT display device 5.
It has a storage capacity capable of storing two sides of the display screen of the display device 5.

The display control unit 6 converts the data stored in the VRAM 4 into display data for the CRT display device 5 and outputs the data to the CRT display device 5.

The scanner 7 is for reading a document image at a predetermined resolution, and the printer 8 is for recording and outputting a received image and the like at a predetermined resolution.

The keyboard device 9 is used by the operator to enter characters, select functions of this mixed mode terminal device, and input commands to execute processing. It is used to specify any point on the display screen or to select a function such as menu display.

The encoding/decoding unit 11 is for encoding and compressing the image data of the image block, and is for encoding and compressing the image data of the image block.
is for storing control programs executed by the CPUI, transmission data, reception data, etc.

The communication control unit 13 connects to the 15DN and executes a predetermined call control procedure process with the 15DN and a predetermined data transmission procedure process with a telematics terminal such as a mixed mode terminal device. It is something.

These (7) CPUI, ROM2, RAM3, VRAM
4. Display control unit 6. Scanner 7, printer 8, keyboard device 9, screen instruction device 10, encoding/decoding section 11, magnetic disk device 12. The communication control section 13 is connected to an internal bus 14, and data transmission between these elements is mainly performed via this internal bus 14.

With the above configuration, when creating a mixed-mode document, the operator runs an editing processing program for editing the mixed-mode document, and then, for example, calls up document information consisting only of character strings created in advance. Specify the position and size of the image block to be displayed and placed during the display.

Next, the image displayed on the image block is read by the scanner 7, for example, an image of a signature, and the read data is displayed on the screen.

For example, as shown in FIG. 2, an image block SB is formed in the lower right area of a one-page document, and the image block S
Place the signature image on B.

When the editing of the mixed mode document is completed in this manner, the operator designates the image block SB as a specific block whose contents cannot be reused in other mixed mode documents.

As a result, the editing processing program includes, for example, information indicating that the image block SB is a specific block in the management information of the mixed-mode document such as a document profile descriptor.

Then, the editing processing program stores the mixed mode document information in the magnetic disk device 12.

When the operator finishes editing the mixed-mode document, the operator specifies a destination and issues a single call command.

As a result, as shown in FIG. 3, first, a call is made to the specified destination, a predetermined call setting procedure is executed, and a communication path is established with the destination (process 101).

Next, using the established communication path, a predetermined pre-transmission procedure is executed with the destination to confirm and negotiate the transmission function (process 102).

As a result, when it is learned that the destination has a specific block processing function as an extended mode (the result of judgment 103 is Y),
ES) Among the mixed-mode document information stored in the magnetic disk device 12, the image of the image block designated as the specific block is subjected to a well-known mosaic process that can be inversely converted, and the data is converted into invisible information ( Processing 104)
.

As a result, for example, the image block SB shown in FIG. 4(a) is converted into a mosaic-processed invisible block 5Brn as shown in FIG. 4(b).

Then, the converted mixed-mode document information is sent to the other device according to a predetermined data transmission procedure (process 1
05).

Further, when it is learned that the destination does not have the extended mode of the specific block processing function (the result of judgment 103 is No), the mixed mode document information stored in the magnetic disk device 12 is specified as a specific block. The image of the existing image block is divided into regions having mutually overlapping parts, and the data is converted (processing 106).

For example, the image block SB shown in FIG. 4(a) is divided into three image blocks SBI, which are obtained by dividing the image block SB into areas ARI, AR2, and AR3 from the beginning in the rask direction, as shown in FIG. 4(c). SB2. It is divided into SB3.

Here, image block SBI and image block SB2, and image block SB2 and image block SB3 partially overlap with each other.

Then, the converted mixed-mode document information is sent to the other device according to a predetermined data transmission procedure (process 1
07).

When the transmission of the mixed mode document is thus completed, a predetermined call disconnection/release procedure is executed, the communication path is terminated, and the call is released (process 108).

In this way, when the destination is equipped with a specific block processing function, the specific block of the mixed mode document information stored in the magnetic disk device 12 is converted into data that has been subjected to mosaic processing that can be reversely converted, and the data is sent. When the destination does not have a specific block processing function, the specific block of the mixed-mode document information is divided into areas with overlapping parts, converted into data, and sent.

Therefore, if the receiving side does not have a specific block processing function, the image of the specific block will be sent in a fragmented state, making it impossible for the receiving side to reuse the image of the specific block. This prevents others from reusing images such as seals.

On the other hand, when an incoming call is detected, processing as shown in FIG. 5 is executed.

First, perform call setup procedures to establish a communication path, and then (
Process 201), after executing a predetermined transmission procedure to receive document information and storing the received information in the magnetic disk device 12 (Process 202), a call disconnection/release procedure is executed to terminate the communication path. , releases the call (process 203).

When the document information is received in this way, an incoming notification is displayed in a predetermined area of the current work screen of the CR1 display device 5 (process 204), and at that time, the automatic print mode is set. If the result of judgment 205 is YES,
A print process is started to print the document information received at that time (process 206).

When the result of determination 205 is No, processing 206 is not executed.

Next, preparations are made so that the operator who notices the incoming call can select a file to be displayed and input a display command so that the received document information etc. can be displayed and output (process 207).
).

As a result, when the operator calls up a screen for selecting one of the files on the CRT display device 5, specifies one of the files, and issues a display command, a display process is started to display the file specified at that time ( Processing 20
8).

Then, it waits until the operator instructs the end of the display (NO loop in judgment 209), and when the result of judgment 209 becomes YES, it ends the display process that is being executed at that time (process 210), and resumes the series from the incoming call. Terminates the process.

In this way, when document information is received, an incoming call notification is sent to alert the operator, one of the files can be selected for display, and the contents of the file specified for display are displayed on the screen on the CRT display device 5. .

If a command to end the display is issued during this display, the display operation is ended and the process from receiving the call to displaying on the CRT device 5 is completed.

Also, if automatic print mode is set,
An image of the document information is recorded and output from the printer 8 according to the content of the received document information.

FIG. 6 shows an example of the print process started in step 206. This process shows a case where the document information consists of one page.

First, the file data of the received document information is read from the magnetic disk group W12 into the RAM 3 (process 301), and among the contents of the document information, management information including the structure of the document and the arrangement of each block is analyzed and processed 302.
), select one piece of block information (process 303), and check whether the block is a text block (determination 304).

When the result of the judgment 304 is YES, data for recording the contents of the text block is formed based on the font data and developed into a bitmap (processing 305).
.

When the result of judgment 304 is No, it is an image block, so it is checked whether the block is a specific block (decision 306).

When the result of judgment 306 is YES, the image information of the image block is decoded to form recorded data after mosaic processing (process 307), and mosaic restoration processing is performed to convert the mosaic processed data back to the original data. (Process 308).

Further, when the result of the judgment 306 is No, the image information of the image block is decoded to form the original recording data (process 309).

In this way, when one block of recording data is created and bitmap developed, the bitmap developed one block's worth of display data is set in the area corresponding to the display position of that block in the page memory formed in RAM 3. (process 310).

■When setting the recorded data for a block in the page memory is completed, check whether all blocks have been completed (judgment 311), and if the result of determination 311 is No.
When this happens, the process returns to step 303 and the same process is repeated for the next block.

In this way, the recording data of all blocks for one page has been set in the page memory, and the result of judgment 311 is Y.
When ES is reached, the contents of the page memory are transferred to the printer 8 and the image of that page is recorded and output (processing 3).
12).

In this way, if the received file contains a specific block, the image data of that specific block is subjected to mosaic restoration processing and converted back to the original image data, and the image of that specific block is converted to a state where it can be viewed. Record it as it is.

Therefore, the received original image including the image of the specific block is appropriately recorded and output, and the operator can read the contents of the specific block.

An example of the display process activated in step 208 is shown in FIG. Note that in this case, one document is composed of one page.

First, the file data of the received document information is read from the magnetic disk device [12 into the RAM 3 (process 401),
Among the contents of document information, management information that shows the structure of the document, the arrangement of each block, etc. is analyzed and processed 40
2), select one piece of block information and process 403), check whether that block is a text block (
Judgment 404).

When the result of the judgment 404 is YES, data for displaying the contents of the text block is formed based on the font data and developed into a bitmap (processing 405).
.

When the result of judgment 404 is No, it is an image block, so it is checked whether the block is a specific block (decision 406).

When the result of judgment 406 is YES, the image information of the image block is decoded to form display data after mosaic processing (407), and mosaic restoration processing is performed to convert the mosaic processed data back to the original data. (Process 408).

Further, when the result of the judgment 406 is NO, the image information of the image block is decoded to form the original display data (process 409).

In this way, when the display data for the block is created and bitmap developed, the display data for one block developed in the bitmap is set in the area corresponding to the display position of the block in the page memory formed in RAM3. (process 410).

When one block of data has been set in the page memory, it is checked whether all blocks have been set (judgment 411). If the result of determination 411 is NO, the process returns to process 403 and the next step is performed. Repeat the same process for blocks.

In this way, the data of all blocks for one page has been set in the page memory, and the result of 1 judgment 411 is YES.
Then, the contents of the page memory are transferred to the VRAM 4, and the screen of that page is displayed on the CRT display device 5 (processing 412).

In this way, in this display process, if the specified document information contains a specific block, the image data of that specific block is subjected to mosaic restoration processing, converted back to the original image data, and the specific block is Display the image in a visually visible state.

Therefore, the operator can confirm the content of the image of the specific block.

In addition, when printing is specified while any screen is being displayed on the CRT display device 5, the VR
Convert the contents of the page memory corresponding to the contents of AM4 into recorded data, transfer the recorded data to the printer 8,
Record and output the image of that page.

This allows the operator to output a hard copy of the contents of the screen being displayed at any time.

Now, when another mixed mode document is edited by referring to the contents of the received file stored in the magnetic disk device 12, the process shown in FIG. 8 is performed.

First, the file data of the selected document information is read from the magnetic disk drive W12 into the RAM 3 (processing 50).
1) Select one piece of block information and process 502) Check whether the block is a text block (
Judgment 503).

When the result of judgment 503 is YES, data for displaying the contents of the text block is formed based on the font data and developed into a bitmap (processing 504).
.

When the result of determination 503 is No, it is an image block, so the image information of the image block is decoded (process 505).

In this way, when one block of display data is generated and bitmap developed, the bitmap developed display data for one block is set in the area corresponding to the display position of that block in the page memory formed in RAM3. processing 506), the contents of the page memory are
The data is transferred to the RAM 4 and the display contents of the CRT display device i5 are updated (processing 507).

CRT display with one block of data! When the display contents in step 5 are updated, it is checked whether all blocks have been completed (judgment 508), and if the result of determination 508 is No, the process returns to process 502 and the same process is performed for the next block. Repeat.

In this way, all blocks of data for one page have been set in the page memory, and the result of judgment 508 is YES.
, it accepts input from the operator for editing operations (
Processing 509).

As a result, when the operator performs an editing operation on the contents of the display screen, the editing process corresponding to the contents of the editing operation is executed (process 510), bitmap data corresponding to the processing result is formed, and the page memory is stored. The contents are updated, the contents are transferred to VRAM4, and the contents are transferred to CRT display N5.
The display contents of are updated (processing 511).

In this way, when one editing process is completed, it is determined whether or not the operator inputs an operation input to end the editing (decision 512), and if the result of determination 512 is No, the next editing operation is accepted. To.

The process returns to process 509.

Further, when the result of the judgment 512 is YES, a predetermined process at the end of editing is executed (process 513), and this process at the time of editing is ended.

In this way, when editing, the image of a specific block included in the document information selected for editing is displayed in a mosaiced state, so the operator can reuse the image in other documents. I can't.

Therefore, the image block specified by the transmitting operator as a specific block cannot be reused by another operator, so it is possible to prevent a situation in which, for example, a signature/seal image is misused.

In the above-described embodiments, the case where the document information consists of one page has been described, but the present invention can be similarly applied to the case where the document information consists of a plurality of pages.

[Effects of the Invention] As explained above, according to the present invention, by specifying an image of a signature included in a mixed-mode document in a specific block, the receiving side can transfer the image as it is to other mixed-mode documents. It is no longer possible to use it in documents,
Obtaining the effect of preventing the misuse of signs etc. 6

[Brief explanation of drawings]

FIG. 1 is a block diagram showing a mixed mode terminal device according to an embodiment of the present invention, FIG. 2 is a schematic diagram showing an example of a mixed mode document, FIG. 3 is a flowchart showing an example of processing at the time of transmission, and FIG. Figure (a) is a schematic diagram showing an example of a specific block, Figure (b) is a schematic diagram showing an example of an image after mosaic processing, Figure (c) is a schematic diagram showing an example of a subdivided image block, FIG. 5 is a flowchart showing an example of processing when a call is received, FIG. 6 is a flowchart showing an example of a printing process, FIG. 7 is a flowchart showing an example of a display process, and FIG. 8 is a flowchart showing an example of editing operation. I...CPU (central processing unit), 2...ROM (read only memory), 3...RAM (random memory)
access memory), 4-VRAM (videt, tRAM)
, 5.CR1 display device, 7.. Scanner, 8.. Printer, 12.. Magnetic disk device.

Claims (2)

[Claims] (1) Image transmission by a mixed-mode terminal device, which is equipped with editing means for specifying an image block to be placed in a document as a specific block, and which divides the specific block into multiple blocks with overlapping parts and transmits the divided blocks. method. (2) Equipped with an editing means for specifying an image block to be placed in a document as a specific block, and when transmitting data, the image block specified as a specific block is converted into a predetermined image and transmitted, and when receiving data, it is included in the received data. An image transmission method for a mixed mode terminal device, which is characterized in that image information of a specific block displayed in the image is inversely converted to the original image and then displayed and output.