JPH03230676A - Picture communication equipment - Google Patents

Abstract

PURPOSE:To check whether or not a sufficient resolution is obtained from a transmission picture at a sender equipment by printing out an image data onto a picture recording section with a preset line density when a recording command comes before the start of transmission after picture reading. CONSTITUTION:When an original is read with a preset linear density in the picture communication, the image data obtained thereby is stored once in an image memory 3. When a recording command is given to the image data stored in the image memory 3, a system control section 1 starts a picture recording section 5 and the picture of the image data from the image memory 3 is printed out at a preset linear density to a readout destination. Thus, whether or not picture quality of the original read before picture transmission is excellent is discriminated and waste of operation and cost due to repetitive transmission are avoided.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an image communication device, and more particularly, to an image communication device that can check the image quality after reading an image, take necessary measures, and then transmit the image. .

2. Description of the Related Art In recent years, there have been remarkable improvements in the performance of various image communication devices such as 7Axismi+7, and one of them is the technology to prevent the deterioration of the image (i.e., the received image) on the receiving side device. be. As a conventional technique for preventing such deterioration of received images, for example, Japanese Patent Application Laid-Open No. 59-1.
There is one shown in Publication No. 0066. In the facsimile communication system, the transmitting side device is equipped with a linear density selection circuit and a memory for storing images, while the receiving side device is equipped with a reception recognition means for recognizing characters included in the received image signal. Become. When the reception recognition means detects an unrecognizable character, it sends a predetermined notification signal to the sending device, and upon receiving this, the line density selection circuit of the sending device responds to the notification signal to select a fine line density. is selected, and the transmitting device retransmits the image signal related to the previous notification signal to the reception recognition means at the selected fine line density.

Problems to be Solved by the Invention However, in such conventional devices, - after sending an image signal through a communication line, it detects deterioration in the image quality of this image signal and notifies the transmitting side of the result; Since this is a problem that can be dealt with for the first time, it may take time to take measures against the deterioration of image quality. Furthermore, since the first image signal is sent, additional communication costs are required. Furthermore, in the case of this conventional example, even though the cause of image quality deterioration is due to a malfunction of the communication line, the quality of the image is always judged based on the received image, so the same image signal is transmitted many times. Even if you send it, there is a risk that you will receive an unrecognized notification from the receiving device.

The present invention has been made in view of the above problems.
The purpose of the present invention is to provide an image communication device that can check whether sufficient resolution can be obtained when image data is sent at the linear density set in the sending device. .

A second object of the present invention is to provide an image communication device that allows for easy changes and additions to original documents associated with the resolution check, and that does not require unnecessary communication charges when making such changes.

Means for Solving the Problems In order to achieve the above object, the first invention of the present application provides an image communication device having an image reading section and an image recording section, a memory member for storing read image data, and a memory member for storing read image data and transmitting the read image data. Line density selection means for selectively varying the line density of the image signal;
If there is a recording instruction after reading the image but before starting transmission,
The gist of the present invention is to provide a control means for causing the image recording section to print out image data at the linear density set by the linear density selection means.

Further, the second invention of the present application provides an image communication device having an image reading section and sending the read image data to a receiving device, and a memory member that includes a replacement area and stores the read image data in page units. , a communication control unit that transmits image data via a communication line; and if a replacement instruction is received after reading the image but before starting transmission, it causes the image reading unit to read the replacement page and stores the image data of the replacement page in the memory. The object of the present invention is to provide a control means for storing image data in a member replacement area and transmitting image data in a regular order including the replacement page.

Operation In the first aspect of the present invention, during image communication, when a document is read at the linear density set by the linear density selection means, the image data obtained thereby is temporarily stored in the memory member.

Next, if there is no special command for a certain period of time, the image data is read out from the memory member, encoded, and sent to the communication control section before being sent out via the line. On the other hand, when a recording instruction is given to the image data stored in the memory member, the control unit activates the image recording unit, and at the same time reads the image data from the memory member and prints the image at the linear density set at the destination. Print out. This checks whether sufficient resolution is available for the transmitted image in the transmitting device.

In the second aspect of the present invention, the image data read as described above is stored in the memory member in page units. Here, when a replacement instruction is given, the control unit activates the image reading unit to read the replacement page, stores the image data of the replacement page in the replacement area of the memory member, and sets the replacement page to the original one. Assign page numbers. Then, the image data including the replacement page is sent to the communication control unit in the regular order,
Send via line.

Embodiment FIGS. 1 to 3 are diagrams showing an embodiment in which the present invention is applied to a facsimile IJ, which is an image communication device.

In FIG. 1, reference numeral 1 denotes a system control unit that controls the overall operation of the facsimile according to this embodiment, 2 an image reading unit that reads a document and refines image data, and 3 a system control unit that controls the entire operation of the facsimile according to this embodiment, 3 an image reading unit that reads and inputs data in the image reading unit 2. An image memory as a memory member that stores and expands image data; 4 is an image processing unit that performs compression processing of image data to be transmitted; 5 is an image processing unit 7 that stores received image data or image data stored in the image memory; - An image recording section for outputting as a copy, 6 an operation display section equipped with various keys and a display section for setting various modes such as determining the linear density for facsimile operations, and 7 an operation display section for connecting to the line 8; This is a communication control unit that controls communication between the two and realizes facsimile transmission according to a predetermined transmission control procedure. Further, reference numeral 9 is a modem that performs predetermined modulation/demodulation processing for image data transmission, and 10 is a network control unit that has an automatic calling function and performs dialing or receiving operations, and the modem 9 and the network control unit IO communicate with each other. It constitutes the control section 7.

In this embodiment, the image reading section 2 is equipped with, for example, a C.
It includes a CD image sensor and a page counter that counts the pages of the document being read. Further, as the image memory 3, for example, a page memory is used.

This page memory is provided with a data storage area and a replacement area, and the data storage area includes the image reading unit 2.
The image data read and inputted is developed page by page, while the image data of the page to be replaced as necessary is stored in the replacement area.

FIG. 2 shows a specific example of the configuration of the system control section 1 and the operation display section 6.

The operation display section 6 includes a linear density selection section 11 for selecting a linear density, a transmission switch 12 for instructing transmission of image data stored in the image memory 3 to the other party's facsimile machine, and an operation mode of the facsimile machine. A copy/confirmation switch 13 that selects the copy mode or whether the image data stored in the image memory 3 should be printed out for confirmation of the transmitted image; and a page designation switch that specifies the page to be changed when replacing pages. It comprises a switch 14 and a transmission lamp 15 that indicates that the facsimile is being transmitted. The linear density selection unit 11 includes a standard switch 1la (for example, 3.85
linear density of lines/■), fine switch 11b (same 7.7 lines/IIIK), extremely fine inch 11c
(15.4 lines/m) are provided, and by pressing each of the switches lla to llc, the corresponding line density is set. When the copy/confirmation switch 13 is pressed before the document is read and image data is not yet stored in the image memory 3, the central control unit determines that the copy mode has been selected. On the other hand, if the copy/confirmation switch 13 is pressed when image data is stored in the image memory 3 after reading the document, the central control unit determines that the confirmation mode has been selected.

The system control unit 1 includes a reading control unit 16 that controls the transfer of image data between the image reading unit 2 and the image memory 3 and the image processing operation, and a reading control unit 16 that controls the setting of linear density when reading a document, A mode storage unit 17 that stores data during replacement operations, a page storage unit 18 that stores replacement page information during replacement operations, and image processing of image data transferred from the image memory 3 to the image recording unit 5 and its transfer. It consists of a recording control section 19 that controls operations, and a central control section that controls operations of each of these functional sections. A CPU is used as the central control unit 2o.

The operation of the image communication apparatus having such a configuration will be explained below with reference to FIGS. 3 and 4.

Here, the operation will be described in the case where only the third page of a document consisting of four pages is transmitted in fine mode, and the other pages are transmitted in standard mode.

First, for the purpose of transmitting the image, the operator uses the line density setting section 1.
When the standard switch lla of No. 1 is pressed, the reading control section 16 turns on the transmission lamp 15, stores in the mode storage section 17 that the linear density at the reading section is standard, and also causes the image reading section 2 and the image memory 3 to , controls the image processing section 4 to start reading the first page of the document. At this time, the image reading unit 2 sets an internal page counter to 1 and stores it in the page storage unit 18. The original is converted into binary information by the image sensor in the image reading unit 2 in the standard mode set in the mode storage unit 17, compressed and encoded in the image processing unit 4, and then stored in the image memory 3. Go (Step 5TI
). Therefore, the numerical value in the page storage section 18 corresponds to the start address of the storage area of the image memory 3.

When the operator presses the fine switch llb while the second page of the document is being read, the third page is read in the fine mode. At that time, "Fine" is stored in the mode storage section 17 and "3" is stored in the page storage section 18, respectively. Furthermore, the mode is changed in the same manner for the fourth page.

When all the document reading sections are completed, all the read image data is stored in the image memory 3. The storage state of this image data is shown by the symbol addition in FIG.

After a certain period of time has elapsed, a call is automatically made and the line 8 is connected. Before this automatic call operation, the operator must copy/
When the confirmation switch 13 is pressed, the central control section 20 recognizes that the operation mode is a confirmation operation, and outputs a print command to the recording control section 19. The recording control unit 19 receives this print command and prints the image data in the image memory 3 without erasing it (step 5T2). At this time, the page number is sequentially printed on the recording paper of each page as shown by reference numeral 31 in FIG. On the other hand, the reading control unit 16 switches the transmission lamp 15 of the operation display unit 6 from lighting to blinking to notify the operator that the confirmation operation is currently in progress. Then, the central control section proceeds to step ST3 and checks whether there is a page change.

In the confirmation operation, when the operator visually inspects the printed recording paper and determines that sufficient image quality has been obtained, he presses the transmission switch 12 again. Accordingly, the central control unit determines that there is no page change in step ST3, and outputs a transmission command to the communication control unit 7. Then, the image data is read out from the image memory 3, modulated by the modem 9, and then sent to the network control unit 1.
0 to line 8 (step 5T6).

However, in the confirmation operation, if the operator determines that the image quality of the third page is not sufficient, he presses the page designation switch 14 and inputs data to change the third page, while pressing the linear density selection section 11. Press the very fine switch llc. Then, the central control unit side determines that there is a page change in step ST3, and the reading control unit 1
6, the command for the rereading section is output. As a result, the read control unit 16 rewrites the data fine in the mode storage unit 17 corresponding to data 3 in the page storage unit 18 to extremely fine. Then, the process shifts to the operation of the document reading unit for the third page again (step 5T4). The re-read document is stored in the replacement area of the image memory 3, as shown by reference numeral 32 in FIG.
8 is stored. Furthermore, in this step ST4, if there is a document to be added, it is inputted (an additional document E within the reference numeral 32 in FIG. 4) and is also stored in the replacement area. When this re-input and additional input processing is completed, the processing on the central control unit side moves to step ST5 to check whether or not to reconfirm the input document. If it is determined that it should be checked, step ST5 is performed. Return to the process of ST2.

On the other hand, if it is determined in step ST5 that reconfirmation is not necessary, the process moves to step ST6, where a transmission operation begins, and the central control section outputs a transmission command to the communication control section 7. Then, the image data is read out from the image memory 3 in an edited state as shown by reference numeral 33 in FIG.
0 to line 8 (step 5T6).

As described in detail, according to the present invention, an image communication apparatus having an image memory includes a linear density selection means, and a linear density set by the linear density selection means after the image reading section and before the start of transmission. By providing a control means for printing out the image data in the image recording unit, it can be determined whether the image quality of the scanned document is good or not before image transmission, thereby eliminating operational and expense waste due to repeated transmission. I can do things.

In another aspect, a replacement area is attached to the image memory, a replacement page is read by the image reading section, and a control means is provided for transmitting image data in the regular order including the replacement page. Various effects can be obtained, such as being able to easily make corrections, changes, or additions to the original even after the original has been read.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of an image communication device according to the present invention, FIG. 2 is a block diagram showing the configuration of a system control section and an operation display section of the device shown in FIG. FIG. 4 is a flowchart showing the operation of FIG. 4, and is a diagram showing how a document is edited in the document reading section and replacement in the embodiment. 1... System control unit, 2... Image reading unit, 3...
- Image memory, 4... Image processing section, 5... Image recording section, 6... Operation display section, 7... Communication control section, 8.
... Line, 11... Line density selection section, 12... Transmission switch, 13... Copy/confirmation switch, 14...
Page designation switch, 15... Transmission lamp, 16...
- Reading control unit, 17...Mode storage unit, 18...Page storage unit, 19...Recording control unit, Addition...Central control unit.

Claims (2)

[Claims] (1) An image reading section that reads the original and obtains image data, a memory component that stores the read image data, an image recording section that prints out the image data stored in the memory component, and an image recording section that prints out the image data stored in the memory component. A linear density selection means for selectively varying the linear density; a communication control unit for transmitting image data via a communication line;
An image communication device comprising: control means for causing an image recording unit to print out image data at a linear density set by the linear density selection means. (2) An image reading unit that reads the original and obtains image data; a memory member that has a replacement area and stores the read image data in page units; and a communication control unit that transmits the image data via a communication line. If there is a replacement instruction after reading the image and before starting transmission, the image reading unit reads the replacement page, stores the image data of the replacement page in the replacement area of the memory member, and stores the image data containing the replacement page. An image communication device comprising: a control means for transmitting image data in a regular order;