KR970003426B1 - Facsimile method - Google Patents

Abstract

The method of operating an image data memory in a facsimile machine having a central processing unit and an additional memory control circuit, is comprised of the reception process including: the first step of examining whether there is recording papers, if data is transmitted to be input; the second step of performing a general reception process, if there are the recording papers, judging whether the recording papers are all used, and terminating an operation after performing a receiving operation until the reception has been completed, in case that there is the recording papers, if the recording papers are all used, and returning to a memory reception process, in case that the recording papers are all used, after performing the first step; the third step of transmitting a DIS to a minimum scan line time MSLT in a compression mode of MS and MR method, and receiving it to the memory till the reception is completed, if there is no recording papers, after the first step; the fourth step of extending received data to remove a synchronous signal, and removing extended reception data in the memory, after the third step; and the fifth step of repeatedly performing the above operation until data compressed by an MMR(CCITT T.6) to be received in the memory does not exist, and of the transmitting process by means of the memory which includes: the sixth step of storing documents which are compressed by means of the MMR to be transmitted, and processing protocol for the transmission to set an MSKT to the minimum value, thereby setting the MR to the standard to transmit a DCS; the seventh step of extending MMR image data to compress the extended data to the MR or MH, and inserting the synchronous signal to transmit compressed data, after performing the sixth step, and repeatedly performing the steps before the MMR image data extending step upto the end of MMR image data and after that, terminating the reception; and of the copying process which includes the eighth step of setting copying number of sheets, changing the documents to image data using a reading device, and performing it until the documents are all read by the MMR to store them; the ninth step of extending MMR data to change it to image data, and printing changed image data to repeatedly perform the operation till the end of MMR data, if the documents were all read, after performing the eighth step; and tenth step of performing the step of extending MMR data to make image data, and repeating the image data producing process according to the designated copying number of sheets are completed, if the above step is terminated, and after that, removing MMR data in the memory to terminate the operation, after performing the ninth step.

Description

Facsimile image data memory operation method

1 is a flowchart of an image data memory reception process according to the present invention.

2 is a flowchart of a transmission process using a memory.

3 is a flowchart of copying using a memory.

The present invention relates to a method of operating a facsimile image data memory.

In general, if the recording paper is exhausted or is set to receive only the memory at the reception of the facsimile machine capable of storing the image data, it is possible to store as much image data as the allowed size of the memory without output to the recording paper at the time of reception. The image data stored in the memory can be inserted to expand the image in the reverse order of the compression method and output to the recording paper. Reception is completed and transmission is possible using the data stored in the memory.

When the original is stored in the memory for transmission, the compression method of communication is determined by the storage compression method of the memory. After that, a synchronization signal is added to the image data of the memory and transmitted. In addition, it is possible to sequentially transmit the same image data by selecting a plurality of relative faxes to be transmitted. If the facsimile has a multiple copy function, the original can be copied into the memory by the set number of copies. However, when receiving the image data into the memory, the compressed data on the communication is stored without modification, and the compressed data on the communication causes a waste of memory because the data for the synchronization signal is inserted, and when the image data stored in the memory is transmitted, If the compression method of the stored image data is transmitted in a stored form without modification, it is impossible to shorten the transmission time.

The present invention devised to solve the above-mentioned problems with the related art can store a larger amount of image data when the recording paper is exhausted when receiving the fax in the operation of the image data memory in the fax. It is an object of the present invention to provide a method for operating a facsimile image data memory that can be efficiently stored in a memory and then used for transmission, so that the storage efficiency can be optimized for a memory size.

In order to achieve the above object, in the image data memory operating method applied to a facsimile configured by adding a memory control circuit to a facsimile having a central processing unit, a first step of checking whether there is a recording sheet when data is transferred and input. After performing the first step, if there is a recording sheet, the general reception process is determined whether the recording sheet is exhausted, and if there is a recording sheet, processing and ending until completion of the recording sheet. After performing the first step, if there is no recording paper, it transmits DIS (Digital Identification Signal) in the compression mode of øms and MR (CCITT T.4) method to MSLT (Minimun Scan Line Time) and receives to the memory until completion of reception. Step 3: After performing the third step, the received data is expanded to remove the synchronization signal and the extended reception data The fourth step of removing the received data from the memory: the fifth step of repeating until there is no data received in the memory by compressing with MMR (CCITT T.6); After compressing using MMR, storing, and performing a protocol for transmission, setting MSLT to a minimum value and transmitting MR to DCS (Digital Command Signal) by setting MR as a default: after performing the sixth step, an MMR image A seventh step of expanding the data to compress the expanded data into MR or MH and inserting a synchronization signal to transmit the compressed data, repeating the MMR image data expansion process up to the end of the MMR image data, and ending transmission: The process of transmitting by using the memory, including setting the number of copies, and setting the number of copies and making the original into image data using a reading device until the original is read by MMR Eighth step of storing: After performing the eighth step, if it is read, expand the MMR data to make the image data, print the data and repeat until the end of the MMR data: After performing the ninth step, MMR After the process of creating the image data by extending the data, if the end is completed, repeat the image data generation process according to whether the set number of copies is completed, and then copy using the memory, including the tenth step of erasing and ending the MMR data from the memory. Characterized in that the process comprises a.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of the present invention;

1 is a flowchart for receiving a fax according to the present invention. First, when data is transmitted and input, it is determined whether there is a recording paper (1) if there is a recording paper (2) through the general reception process (2) whether the recording paper is exhausted, (3) if there is a recording paper, processing and ending until completion (4). When the recording paper is exhausted, the process shifts to receiving the memory (6).

The DIS is transmitted to the MSLT in the compression mode of øms and the MR system, and the decision here optimizes the reception capability. That is, the facsimile protocol DIS is set to minimize the synchronization signal at the transmitting side and to select a compression method with good compression efficiency (5).

Since there is no recording paper, it is received into the memory (6) and received until the reception is completed (7) to expand the received data (8). The synchronization signal is removed (9) and the extended received data is removed from the memory (10). It is compressed by MMR, stored in memory (11), and ends when there is no more data received (12). That is, in steps 8 to 12, MMR is used to remove the synchronization signal and to compress the image data stored in the memory.

For this efficient memory use, a memory control circuit is added to the normal facsimile circuit. In addition, CCITT T.6 (hereinafter referred to as MMR) is used as the control program.

2 is a flowchart of a method of transmitting using a memory. An original to be compressed and then transmitted is stored using MMR having the maximum efficiency (13). Proceed with the protocol for transmission (14) and set the MSLT to the minimum value so that the receiving side uses the maximum capacity in communication, and transmit the DCS with MR as the default (15).

The MMR image data is expanded (16), and the expanded data is compressed into MR or MH (17). Compressed data is transmitted by inserting a synchronization signal (18). The MMR image data expansion process is repeated until the end of the MMR image data, and transmission is terminated (19). That is, (18) gives flexibility in the compression scheme at the time of transmission due to the capacity set in (15) and obtains a minimum transmission time.

If we reorganize the contents mentioned above,

1. Receiving to memory without recording paper: In step (5), set MSLT to øms, set to MR, and then send DIS. When the protocol with the sending facsimile is determined, the sending facsimile sets the minimum value of the MSLT (choose one of 40, 20, 10, 5, øms), the MR type sets the MR, and the MH type sets the MH compression method. The image data to be transmitted is transmitted.

In step 6, the content of the image data is stored in the MR compression method (or MH method), and data for the synchronization signal (EOL, FILL, RTC: defined in CCITT T.4) is inserted.

Steps (8) to (13) improve the compression efficiency by transforming the compression method into MMR and reduce the memory resident amount by eliminating the synchronization signal. Comparison of memory efficiency is based on Table 1 below.

2. When transmitting using memory data, the optimum memory efficiency is already secured in step 13.

By the process (15), the effect of the process (5) is shown to generate the minimum transmission data to achieve the minimum transmission time.

3 is a flowchart of a method of copying using a memory. First, the number of copies is set (20), and an original is made into image data using a reading apparatus and stored in MMR (21). Depending on whether the manuscript has been read (21), the MMR data is expanded to produce image data (22).

Print the created data (23) and extend the MMR data until the end of the MMR data to create image data (24)

TABLE 1

(Condition) Resolution: 3.851lines / mm

If it is finished, the image data generation process is repeated according to whether the set number of copies has been completed, and then MMR data is erased from the memory and terminated (26).

As described above, the present invention is based on the MMR compressor method, and has an effect of reducing communication time, and facilitates the user in case of a failure of the facsimile (here, the facsimile of the facsimile is the recording paper and the occurrence of the failure of the recording part). Limited) Reduces the number of facsimile communication failures (no communication failure in the event of a log failure), and gives flexibility in setting the memory size in system design due to the increased efficiency of the memory storage technique. It also provides room for adding and developing various functions using memory. In addition, it has the effect of increasing the storage ratio of the image data to the size of the image memory, obtaining flexibility in the compression method in the case of transmitting using the memory, and reducing the transmission time by reducing the size of the image data to be transmitted and received. have.

Claims (1)

An image data memory operating method applied to a facsimile configured by adding a memory control circuit to a facsimile having a central processing unit, the method comprising: checking whether there is a recording sheet when data is transmitted and input: after performing the first step, If it is determined that the recording paper is exhausted, if there is a recording paper, the process is processed until the reception is completed. If the recording paper is exhausted, the process transitions to receiving the memory. Sending DIS in the compression mode of øms and MR in MSLT (Minimun Scan Line Time) and receiving until the completion of reception into memory: After performing the third step, the received data is expanded to remove the synchronization signal. The fourth step of removing the extended received data from the memory: Compressed by MMR (CCITT T.6) to receive in the memory The fifth step of repeating until there is no data: including receiving, compressing using MMR, storing the original to be sent, proceeding with the protocol for transmission, and setting the MSLT to the minimum value. Step 6: Transmitting DCS by Setting: After performing the sixth step, MMR image data is expanded to compress the expanded data into MR or MH, insert a synchronization signal to transmit the compressed data, and to the end of the MMR image data. The seventh step of repeating the MMR image data expansion process and ending the transmission: transmitting the data using a memory, setting the number of copies, and converting the original into image data using a reading device 8th step of storing the data until it is read: After performing the 8th step, if the data is read, the MMR data is expanded to create image data. The ninth step of printing the created data and repeating until the end of the MMR data: After performing the ninth step, performing the process of creating the image data by expanding the MMR data and, if finished, the image data generation process according to whether the set number of copies is completed. And copying using the memory, including repeating the step 10, and then erasing and terminating the MMR data from the memory.