JPS60212061A - Image information controller - Google Patents

Abstract

PURPOSE:To simplify the processing by transferring a white line included much in image information with a quick and less data amount so as to improve the entire transfer speed and eliminate the need for a management table relating to the compression of the image information. CONSTITUTION:In transmitting a content of an image information memory 12 to a mini-facsimile equipment 16, a microprocessor 8 checks whether a line data given to the image information communication equipment 3 is a full white level line or not. A white line detection section 4 in the image information communication equipment 3 discriminates an identification code so as to check whether or not the transmitted data corresponds to the white line data. When it is not the while line, the image information of the line is transmitted via a counter facsimile interface section. When the white line detecting section 4 detects a white line, a white line skip signal output section 5 is started. The output section 5 confirms that the output destination is a mini-facsimile equipment 16 and gives a comman of a white line skip by using a transmission signal having a special frequency.

Description

Detailed Description of the Invention (A) Technical Field of the Invention The present invention relates to an image information control device, particularly a host computer,
Regarding the management method of image data between image input/output terminals such as so-called mini facsimile machines,
The present invention relates to an image information control device that can reduce the amount of image data transferred without having an image data management table, and can increase the transfer speed.

(B) Technical background and problems Recently, facsimile machines have come into widespread use due to office automation, but the input/output image information of facsimile machines should be able to be handled by the host computer. It is hoped that

When a facsimile device is connected to a host computer, a relay device is required to convert a predetermined facsimile procedure into a data terminal procedure of the computer.

Such a relay device not only converts the transmission procedure, but also assembles image information based on character information, vector information, partial image information, etc. sent from the host computer, sends it to the facsimile device, and sends it to the host computer. It is desirable to reduce the load on computers. Therefore, a relay device of an image information control device is being considered, which has an image information management device that includes an image information memory and assembles image information, and an image information communication device that transmits the image information according to a predetermined transmission procedure.

In the conventionally considered image information control device, for example, when the image input/output terminal connected via a switching network is a so-called mini facsimile device,
The image information management device is configured to deliver the assembled image information to the image information communication device without distinguishing between all-white lines and real lines. Therefore,
For example, in the case of an A4 size, 1728-bit data is transferred from the image information management device to the image information communication device as white line data. Generally, there are many completely white lines in image information, and it is desirable to perform this transfer at high speed. Note that between the image information control device and the mini facsimile device, a signal instructing so-called white line skipping is sent instead of the white line data, thereby reducing the transfer time.

(C) Purpose and Structure of the Invention The present invention aims to solve the above-mentioned problems, and makes it possible to transfer white line parts, which are often included in image information, quickly and with a small amount of data, thereby improving the overall transfer speed. The purpose of this invention is to simplify processing by eliminating the need for management tables related to compression of image information, etc. Therefore, the image information control device of the present invention
An image information control device in a system that connects a host computer and an image input/output terminal via a line and transmits and receives image information between the host computer and the image input/output terminal, and sends image information to the line. In an image information control device comprising an image information communication device that controls signals, and an image information management device that assembles image information based on information transmitted from the host computer, the image information management device The image information communication device includes a white line data conversion unit that converts the all white line into a predetermined identification code when the information is an all white line, and the image information communication device includes a white line data converter that converts the all white line into a predetermined identification code. It is characterized by comprising a line detection section and a white line skip signal output section that outputs a white line skip signal according to the detection result by the white line detection section when the image information transmission destination is a predetermined image input/output terminal. It is said that Hereinafter, embodiments will be described with reference to the drawings.

(D) Embodiment of the Invention FIG. 1 shows the configuration of an embodiment of the present invention, FIG. 2 shows an example of image information to be transferred, and FIG. 3 shows a diagram for explaining the flow of data in the embodiment shown in FIG. 1. Show the diagram.

In the figure, 1 is a host computer, 2 is an image information control device,
3 is an image information communication device, 4 is a white line detection section, 5 is a white line skip signal output section, 6 is an interface section,
7 is an image information management device; 8 is a microprocessor;
9 is a main memory, 10 is a character generator, 11 is a vector generator, 12 is an image information memory, 13 is a white line data converter, 14 is a network control device, 15 is a switching network, and 16 is a mini facsimile device. .

The host computer 1 is a computer that processes image information, and sends image data including character information, vector information, image patterns, etc. to the mini facsimile device 1.
6, the image data is output to the image information control device 2. The image information control device 2 is
Image information communication device 3 and image information management device 7
It is a so-called adapter-like device that matches the data terminal interface when viewed from the host computer 1 side, and performs procedure conversion as if it were another mini facsimile device when viewed from the mini facsimile device 16 side.

The image information communication device 3 is a device that converts transmission procedures and controls sending image information to a line. An image information management device 7 connected to the image information communication device 3 via an interface section 6 is a device that assembles image information to be transmitted to the mini facsimile device 16. When receiving data that is the basis of image information to be transmitted to the mini facsimile machine 16 from the host computer 1 via the image information communication device 3 and the interface section 6, an image pattern of dots is created based on the received data. are assembled and sequentially stored on the image information memory 12. And image information memory 1
The image information stored in 2 is delivered line by line to an image information communication device 3. The image information communication device 3 is
The information received from the image information management device 7 is transmitted according to the transmission procedure of the mini facsimile device 16.

The information delivered from the host computer 1 to the image information management device 7 includes, for example, character codes, vector information consisting of starting point information and ending point information, and already patterned image information including partial images. The microprocessor 8, which is the main control unit of the image information management device 7,
According to control information prepared in advance in the main storage section 9, if the input information is a character code, it is patterned by the character generator 1o and stored in the image information memory 12. If the input information is vector information, a well-known vector generator 11 generates an address based on the vector information, and then a dot is written at that address on the image information memory 12. Further, if it is partial image information, etc., the image information is expanded to the specified coordinate address.

Next, in sending the contents of the image information memory 12 to the mini facsimile machine 16, the microprocessor 8:
It is checked whether the line data handed over to the image information communication device 3 is a completely white line. When the line is completely white, the white line data converter 13 converts the white line data into a predetermined identification code, for example, a bit string such as rooolooolJ, and then transfers it to the image information communication device 3.

The white line detection unit 4 in the image information communication device 3 includes:
The above identification code is discriminated to check whether the sent data corresponds to white line data. If it is not a white line, it transmits the image information of the line via a facsimile interface section (not shown).2 When the white line detection section 4 detects a white line, the white line skip signal output section 5 is activated. be done. For example, the white line skip signal output unit 5 confirms that the output light is from the mini facsimile device 16, and
A transmission signal with a special frequency is used to instruct white line skipping. These processes are repeated for each line, but in the case of a real line that is not a white line, the image information is directly transmitted from the image information communication device 3, so the image information communication device 3 uses the image data management team. There is no need to have a pull etc.

The network control device 14 is a device that controls the connection between the host computer 1 and the mini facsimile device 16 based on dial information etc. from the host computer 1 in advance. The image information sent from the image information communication device 3 is transmitted by the network control device 14 to the destination mini-facsimile device 16 via the exchange M415.

The image information to be transferred usually includes information before and after the actual line portion containing the actual image content, as shown in Figure 2.
A large number of white line portions are provided as so-called top margins and bottom margins.

Furthermore, even in the actual line portion, in the case of character data, there are many white lines between each line. Therefore, the processing speed of white lines greatly affects the performance of the image information control device 2. As mentioned above, by converting the white line into a relatively short predetermined identification code, data transfer between the image information management device 7 and the image information communication device 3 is significantly reduced, and processing speed is increased. can do.

The data flow in this embodiment is as shown in FIG. 3, for example. The data output from the host computer is
From the image information communication device 3 via the interface section 6, the image information management device 70 microprocessor 8
is loaded into. If this data is a character code,
It is converted into a character pattern by a character generator 10, and if it is vector information, it is converted into a vector pattern by a vector generator 11 and stored in an image information memory 12. The contents of the image information memory 12 are read line by line, and the white line data converter 13 converts the white line into a predetermined identification code. Then, the data is sequentially passed through the interface section 6 and handed over to the image information communication device 3. In the image information communication device 3, a white line detection unit 4 detects a white line, and when a white line is detected, a white line skip signal output unit 5 issues a white line skip instruction. If the line is not a white line, image information of the actual line is sent to the mini facsimile machine 16.

(E) As described in detail, according to the present invention, the amount of data to be transmitted is significantly reduced when image information on an image information memory is transmitted to an image information communication device that controls communication of image information. This can speed up processing. Further, the image information communication device only needs to perform processing with consideration to the white line, and there is no need to have a management table for data conversion, thereby simplifying the processing.

[Brief explanation of drawings]

FIG. 1 shows the configuration of an embodiment of the present invention, FIG. 2 shows an example of image information to be transferred, and FIG. 3 shows a diagram for explaining the flow of data in the embodiment shown in FIG. In the figure, 1 is a host computer, 2 is an image information control device,
3 is an image information communication device, 4 is a white line detection section, 5 is an own line skip signal output section, 6 is an interface section,
7 is an image information management device; 8 is a microprocessor;
9 is a main memory, 10 is a character generator, 11 is a vector generator, 12 is an image information memory, 13 is a white line data converter, 14 is a network control device, 15 is a switching network, and 16 is a mini facsimile device. . Patent applicant Hiroshi Mori (1 other person), Fujitsu Ltd. agent patent attorney

Claims (1)

[Claims] An image information control device in a system that connects a host computer and an image input/output terminal via a line and transmits and receives image information between the host computer and the image input/output terminal, and sends image information to the line. In an image information control device comprising an image information communication device that controls signals, and an image information management device that assembles image information based on information transmitted from the host computer, the image information management device The image information communication device includes a white line data conversion unit that converts the all white line into a predetermined identification code when the information is an all white line, and the image information communication device includes a white line data converter that converts the all white line into a predetermined identification code. It is characterized by comprising a line detection section and a white line skip signal output section that outputs a white line skip signal according to the detection result by the white line detection section when the image information transmission destination is a predetermined image input/output terminal. Image information control device.