KR100186608B1 - Communication time reducing method for facsimile - Google Patents

Abstract

1. TECHNICAL FIELD OF THE INVENTION

Sending and Receiving Fax Documents

2. Technical problem to be solved by the invention

It is to provide a method for reducing the overall fax communication time in the multi-page transmission.

3. Summary of Solution to Invention

In this method, the facsimile page manuscript is transmitted and received by sending and receiving a function indication signal of a non-standard device including a specific bit indicating a type of facsimile and a non-standard setting signal including a specific bit indicating whether to perform multi-page communication. A control method comprising: a first process of receiving a facsimile when the called receiving facsimile transmits a function indication signal of the non-standard device and determining whether the other facsimile is homogeneous; A second process of the facsimile transmitting the non-standard setting signal and receiving the facsimile receiving the multi-page communication; and if the receiving facsimile is ready to receive, the sending side facsimile A third process of transmitting control data after transmission, and multi-page A fourth step of checking whether the transmitting side facsimile is required to convert the resolution after transmission of the control data in communication, and transmitting a message completion signal if necessary; and in the case of multi-page communication, the receiving side facsimile is the one page image data. A fifth step of receiving the message and receiving the control data and setting a speed detection mode to receive the message completion signal and transmitting a response signal when the command reception speed is detected; And a sixth step of returning to the first step for transmission of the next page.

4. Important uses of the invention

Multi-page fax Used to shorten the time of sending and receiving originals.

Description

How to shorten communication time of fax

1 is a flowchart showing a conventional facsimile document transmission and reception process.

2 is a block diagram of a facsimile to which the present invention is applied.

3 is a flow chart showing a first fax document transmission and reception process according to an embodiment of the present invention.

Figure 4 is a flow chart showing a second fax original transmission and reception process according to an embodiment of the present invention.

5 is a flowchart of a transmission communication control according to an embodiment of the present invention.

6 is a flowchart of a receiving side communication control according to an embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

111: control unit 112: OPE

113: sensor unit 114: scanner

115: image processing unit 116: printer unit

117: modem 118: NCU

The present invention relates to a method of increasing a transmission speed in a facsimile, and more particularly, to a method of shortening the transmission time of a multi-page transmission.

When multiple pages of originals are sent or received between ordinary facsimile machines, a signal indicating that a multi-page communication is always transmitted after communication of one page of image data is completed.

1 is a flowchart showing a conventional facsimile document transmission and reception process.

The user of the transmitting side TX dials the fax number to call the receiving side RX. At this time, the receiving side RX transmits a digital identification signal (hereinafter referred to as DIS) as a response signal, and the transmitting side TX receives this. The DIS indicates the function of the receiving device.

The transmitting side TX interprets the DIS and transmits a digital command signal (hereinafter referred to as DCS) for setting a response and its function according to the capability of the receiving side RX. Sends a status verification signal, or TCF (Training Confirmation).

Accordingly, the receiving side RX is a signal for requesting confirmation of receipt (Confirmation to Receive: hereinafter referred to as CFR) or retraining of the line state according to the line state verification signal (Failure to Train: hereinafter FTT). Is sent. The image data is sent immediately after sending the reception preparation confirmation signal.

Then, when the transmitting side TX transmits a multi page signal (MPS) to inform that there is image data to be transmitted further, the receiving side RX sends a message confirmation signal (hereinafter referred to as MCF) signal. It responds by sending The transmitting side TX, which detects the MCF, sends image data again.

After the last data has been sent, the End Of Procedure signal (EOP), MCF and Disconnect signal (hereinafter referred to as DCN) indicating that there is no end of page 1 and there is no next page. Send it out. In this way, after all the image data has been sent, the line is cut to finish the transmission.

However, when the number of multipages increases, image data is transmitted at a high speed, but a signal indicating that multiple pages exist is sent at a low speed, and thus a lot of time is spent transmitting this multipage existence signal. This is a factor in making the overall fax communication time longer.

Accordingly, an object of the present invention is to provide a method for shortening the overall facsimile communication time in the transmission of a multipage document.

In order to achieve the above object, the present invention provides a method for shortening a communication time, and transmits and receives a function indication signal of a non-standard device including a specific bit representing a type of facsimile and a non-standard setting signal including a specific bit indicating whether to perform multi-page communication. 1. A method for controlling page document transmission / reception between facsimile machines, comprising: a first process of receiving a facsimile facsimile when the called side facsimile transmits a function indication signal of the non-standard device and determining whether the facsimile facsimile is the same; If the fax is homogeneous, the second process of the sending side facsimile transmitting the non-standard setting signal and receiving the receiving side facsimile performs multi-page communication; and if the receiving side facsimile is ready to receive, the sending side facsimile Transfers the image data on page 1, then transfers the control data. A third step of performing a multi-page communication; and a fourth step of checking whether a resolution conversion after transmission of the control data is necessary for multi-page communication, and transmitting a message completion signal if necessary; A fifth process of receiving a message completion signal and transmitting a response signal when the facsimile receives the image data of one page, receives the control data, sets a speed detection mode, and detects a command reception speed; And a sixth step of returning to the first step for the transmission of the next page after the fax receives the response signal.

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

First, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals have the same reference numerals as much as possible even if displayed on different drawings. In addition, in the following description, many specific details such as components of specific circuits are shown, which are provided to help a more general understanding of the present invention, and the present invention may be practiced without these specific details. It will be obvious to those skilled in the art. In the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

2 is a configuration diagram of a facsimile to which the present invention is applied.

The control unit 111 controls the overall operation of the transmission mode, the reception mode, and the copy mode of the fax according to the set program. In addition, the control unit 111 may include a program memory and a data memory or may be externally connected as shown by reference numeral 119. The program memory stores the program of the present invention, and the data memory temporarily stores data generated during program execution. The OPE 112 is composed of a key input unit and a display unit. The key input unit generates data of a key pressed for designating each mode and performing an operation of the designated mode, and outputs the data to the controller 111. In addition, the display unit performs a function of inputting and displaying data indicating an operation state of the system when the controller 111 performs each mode. The sensor unit 113 detects the presence / absence of an original and the presence or absence of print paper, and outputs the detected state signal to the control unit 111. The scanner 114 moves an input document and converts the image of the document into digital data for output. The image processor 115 distinguishes the image data input from the scanner 114 into background and text, or generates halftone image data so that the receiving side can receive the image almost identically to the actual image. It plays a role. The print unit 116 prints the image data input from the image processing unit 116 on the printing paper under the control of the control unit 111 and performs the reception mode and the copy mode. Under the control of the control unit 111, the modem 117 modulates and transmits the image data output from the image processing unit 115 in accordance with the standard of the transmission type facsimile in the transmission mode, and in the receiving mode, the encoded image input through the transmission line. The signal is demodulated in its original form for processing by the modem 117. The network control unit (NCU) 118 forms a transmission / reception path of a telephone line (tip, ring: T, R) and the modem 117 under the control of the control unit 111.

3 is a flowchart illustrating a first facsimile document transmission and reception process according to an embodiment of the present invention, in which there is no resolution change.

The user of the transmitting side TX dials the fax number to call the receiving side RX. At this time, the receiving side RX sends NSF + CSI + DIS as a response signal. Accordingly, the transmitting side TX receiving the NSF + CSI + DIS analyzes NSF (Non-Standard Facilities). The NSF indicates the functionality of the nonstandard device. Since the present invention is a function effective only when its facsimile machines communicate with each other, the present invention uses this function. The CSI is used to identify a called party by using a called subscriber identification signal, i.e., the number or telephone number of the called party.

The NSFDP specific bit is defined so that the transmitting side TX knows whether a function according to the present invention is set. The transmitting side TX searches for a specific bit of the NSF, checks whether it is a facsimile of the same kind, and transmits NSF + TSI + DCS to the receiving side RX when it is confirmed that it is homogeneous. The NSS is a non-standard set-up signal. The TSI is a Transmitting Subscriber Identification signal.

The transmitting side TX then sends a line state verification signal TCF. The receiving side (RX) sends a CFR if the line state is good, otherwise FTT. When it is determined that the line condition is good, the transmitting side TX transmits image data.

On the other hand, the image data is composed of pure image data and control data. The control data is used to enable multipage transmission. The end of the image data is always sent with RTC (Retrun To Control). Therefore, when the receiving side RX detects the RTC code, the reception of the image data is terminated, and the transmitting side TX immediately transmits the next page. At this time, the transmitting side TX temporarily pauses. This is because the receiving side RX has to give time to receive the next page. The receiving side (RX) is received later, the RTC is detected again to receive the next page.

After all the image data has been sent, EOP, MCF and DCN are sent out, the line is cut and the transmission is completed.

4 is a flowchart illustrating a process of transmitting and receiving a second fax document according to an embodiment of the present invention, in which there is a change in resolution.

Compared to the case of FIG. 3, the message completion signal for the mode change (e.g., phase B) immediately after the sender TX transmits the image data to change the resolution (hereinafter referred to as EON). The receiver (RX) detects this and sends the MCF.

By adopting the above procedure, since it is not necessary to exchange MPS and MCF as shown in FIG. 1, it is possible to save much transmission time in the case of a large amount of image data.

Meanwhile, in order to perform the present invention, reception at the receiving side facsimile should be made in real time. In the conventional facsimile, the paper must be cut after receiving one page, and thus wait until the operation is completed. At this time, since the next page is transmitted from the transmitting side, the receiving side should have the ability to receive image data quickly.

On the other hand, since receiving EOM commands or high-speed image data can occur at the same time when receiving multiple pages, the receiving facsimile must be able to check them at the same time.

5 is a flowchart illustrating a transmission side communication control according to an embodiment of the present invention, and FIG. 6 is a flowchart illustrating a reception side communication control according to an embodiment of the present invention. Referring to FIGS. 5 and 6, a facsimile multi-page document transmission and reception control process according to an embodiment of the present invention will be described.

For example, the exchange generates a ring signal when the receiving facsimile user calls the receiving facsimile dialing the facsimile number, which is set in the auto receiving mode and is in an idle state. Therefore, the ring signal is transmitted to the NCU of the receiving side fax through a telephone line. Accordingly, the control unit of the receiving side fax checks whether the ring signal is received, and raises the ring by controlling the ring generating unit according to the check result. Also, the control unit of the receiving side facsimile counts how many rings are generated by checking the ring signal time, and when the ring signal is checked a predetermined number of times, a called station identification (CED) indicating that the reception operation is started automatically. Send out the tone. In step 6a, the type of the facsimile is indicated and sent to a specific bit of the NSF, and the CSI and DIS signals are transmitted.

In this case, the transmitting side facsimile receives the NSF, CSI, and DIS signals following the reception of the CED tone through the NCU, as shown in step 5a. At this time, the control unit of the transmitting side facsimile analyzes the NSF signal and confirms whether or not the signal of the same kind. If it is determined that the identification is the same, the control unit of the sending side facsimile in step 5b by setting the transmission of the multi-page communication to a specific bit of the NSS and transmits TSI and DCS. Accordingly, the receiving side facsimile analyzes the NSS and searches whether the sending side facsimile is the same type of facsimile capable of performing the function of the present invention. In step 6d, a signal (training) for verifying the state of the line is sent to the sending side facsimile. As a result, if the track condition is satisfactory, proceed to step 6e to send the CFR, otherwise to step 6c to send the FTT.

When the sending side facsimile receives the CFR in step 5d, it determines that transmission preparation is completed, and proceeds to step 5e to send image data. In step 5f, the next page preparation status is continuously monitored while the data of the first page is sent. If the next page is not ready after one page of data has been sent, the sender continues to send fill data (0). This is because it takes time to feed the next page. After continuing to send the fill data, if it is determined that the next data is ready, the process proceeds to step 5h to send RTC (Return To Conmtrol) data. In step 5i, it is checked whether the resolution should be changed for transmission of the next page. If it is determined that the resolution needs to be changed, the process proceeds to step 5j to transmit the EOM. On the other hand, if it is determined that the resolution is not necessary, the process returns to step 5e. On the other hand, if the response signal, that is, MCF is received from the receiving side in step 5k after transmitting the EOM returns to step 5a.

On the other hand, the receiving side facsimile receives the image data transmitted from the sending side facsimile in step 6f, if the RTC data is detected in step 6g, the reception is terminated, and proceeds to step 6h to detect the speed (low speed or high speed). If the resolution is not changed at the transmitter side, image data comes immediately at high speed, but if the resolution is changed, a command related to the resolution change is made at low speed, so the reception side applies the detection logic to distinguish it. To have.

If the high speed image data comes, the flow proceeds directly to step 6f to receive the image data. Otherwise, the process proceeds to step 6j to receive the EOM during the low speed command, transmits the MCF in step 6k, and then returns to step 6a.

The present invention as described above has the advantage of reducing the communication speed of the fax for transmitting and receiving multiple pages.

Meanwhile, in the detailed description of the present invention, specific embodiments have been described, but various modifications may be made without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined not only by the scope of the following claims, but also by the equivalents of the claims.

Claims (4)

In a method of controlling a page document transmission / reception between facsimile pages, which transmits and receives a function display signal of a non-standard device including a specific bit indicating a type of facsimile and a non-standard setting signal including a specific bit indicating whether multi-page communication is performed. A first process of the receiving side facsimile transmitting the functional indication signal of the non-standard device, and determining whether the receiving side facsimile is the same or not, and if the receiving facsimile is the same type, the transmitting side facsimile is the non-standard setting signal. A second process of detecting the receiving side facsimile performing multi-page communication, and if the receiving facsimile is ready to receive, the sending side facsimile transmits one page of image data and then transmits control data. A third process of transmitting and the transmitting side in the case of multi-page communication The fourth step of checking whether the resolution is necessary after the transmission of the control data, and if necessary, transmitting a message completion signal; and, in the case of multi-page communication, the receiving side facsimile receives the image data of one page, and A fifth step of receiving the message completion signal and transmitting a response signal when the command reception speed is detected by setting the speed detection mode after receiving the control data; and transmitting the next page after the sending side fax receives the response signal. And a sixth step of returning to the first step for the communication time reduction method. The method of claim 1, further comprising: returning to the third process to transmit a next page if resolution resolution is not required. The method of claim 1, wherein the command reception speed is slower than the reception speed of the image data. A facsimile multipage document transmission / reception control method for sending / receiving image data including control data at the end of every single page of original document data, wherein the receiving side facsimile that detects a call transmits a signal indicating the type of facsimile to the sending side facsimile. A first process of determining whether or not to be homogeneous by transmission, a second process of the transmitting side facsimile indicating that the receiving side facsimile is multi-page communication when the relative facsimile is the same type, and the transmission when the receiving ready state of the receiving side facsimile is confirmed A third process of sending the page data to the receiving side facsimile by the side facsimile; and transmitting the control data when the sending side facsimile completes the transmission of the image data of the one page, and transmits the next page. The fourth process returning to the third process and the receiving side facsimile are different. And a fourth process of preparing for receiving the next page upon receiving the control data following the reception of the image data of the first page.