KR100229040B1 - Method for transmitting recieving character date using a fax - Google Patents

Abstract

end. The technical field to which the invention described in the claims belongs

The present invention relates to a method for sending and receiving text manuscripts using facsimile.

I. The technical problem to be solved by the invention

Provides a method of sending and receiving text manuscripts that can improve image quality and transmission speed when sending and receiving text manuscripts using facsimile.

All. Summary of Solution of the Invention

When the text original is transmitted, the character code data corresponding to each character of the text original is transmitted, and when receiving, the image of the character font corresponding to the character code data is recorded on the recording sheet.

la. Important uses of the invention

It is used to improve the image quality when sending and receiving text originals using facsimile.

Description

How to send and receive text manuscripts using facsimile {METHOD FOR TRANSMITTING RECIEVING CHARACTER DATE USING A FAX}

The present invention relates to a method for transmitting and receiving an original using a facsimile, and more particularly, to a method for transmitting and receiving a text original.

In general, a conventional facsimile reads a text document pixel by pixel through a scanner to transmit data in pixel units, and when received, transmits data in pixel units to a recording sheet. Have been recorded. At this time, the image data recorded on the recording paper had a deterioration in image quality compared to the character before the reading because the read image data was transmitted and received in pixel units and rewritten. Due to the phenomenon, a skew phenomenon appeared in the image recorded on the recording paper.

As described above, the conventional facsimile transmits and receives the read image data of the original in transmitting and receiving the text original, so that the shape of the transmitted and received and rewritten characters is lower in image quality compared to the shape of the character before reading. It was.

Accordingly, an object of the present invention is to provide a method of transmitting and receiving a text manuscript which can improve the image quality when sending and receiving a text manuscript using a facsimile.

1 is a schematic block diagram of a facsimile to which the present invention is applied;

2 is a flowchart illustrating a process of reading a text manuscript according to an embodiment of the present invention;

3 is a flowchart illustrating a process of transmitting a text original according to an embodiment of the present invention;

4 is a flowchart illustrating a process of receiving a text original according to an embodiment of the present invention.

According to the present invention for achieving the above object, when transmitting and receiving text originals, when transmitting text originals, the read image data is pattern-recognized to read characters, and converted into character code data corresponding to the read characters. Send. And when receiving, recording an image of a character font corresponding to character code data on a recording sheet.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Many specific details are set forth in the following description and in the accompanying drawings to provide a more general understanding of the invention. It will be apparent to those skilled in the art that the present invention may be practiced without these specific details. In addition, detailed descriptions of well-known functions and configurations that may unnecessarily obscure the subject matter of the present invention will be omitted.

First, referring to FIG. 1, which shows a schematic block diagram of a conventional facsimile to which the present invention is applied, the central processing unit 100 controls the overall operation of a facsimile transmission mode, a reception mode, and a copy mode according to a set program. . The memory unit 102 stores an operation program, a protocol control program, an image of a character font, and various reference data of the central processing unit 100, and temporarily stores data generated during the execution of the program. Operating Panel Equipment (hereinafter referred to as "OPE") 104 has a number of numeric keys and function keys and a display device, and keys according to key inputs that a user presses to designate each mode and perform an operation of the designated mode. The data is applied to the central processing unit 100 and the various states of the fax are displayed under the control of the central processing unit 100. The scanner 106 scans an original and outputs image data corresponding to the original image to the central processing unit 100. The image data output from the scanner 106 is processed by the central processing unit 100 and stored in the memory unit 102 and transmitted by the modem (modulator-demodulator) 108 or by the printing unit 114. Printed. The modem 108 modulates the output data and the image data of the central processing unit 100 into analog signals, and transmits them to telephone lines T and R through the LIU (Line Interface Unit) 110. Demodulate. The LIU 110 forms a line between the telephone lines T and R and the modem 108 under the control of the central processing unit 100. The printing unit 114 prints an image under the control of the central processing unit 100. The sensor unit 112 detects a state of each part of the facsimile, including sensing the remaining amount of recording paper, detecting a facsimile message, and provides the same to the CPU 100.

2 is a flowchart illustrating a method of reading a text manuscript according to a preferred embodiment of the present invention. The operation according to the flowchart of FIG. 2 is programmed in the memory unit 102 to be performed by the CPU 100 of FIG. 1. Hereinafter, a method of reading a text manuscript will be described in detail with reference to FIGS. 1 and 2.

First, when a user transmits a text original using a facsimile, the user selects the original to be transmitted through the OPE 104 as the text original.

When the central processing unit 100 starts reading in step 200 of FIG. 2, the CPU 100 proceeds to step 202 to check whether the document to be read is a text document. If the user has not selected the contents of the original as text, the central processing unit 100 proceeds to step 214 to control the scanner 106 to read the image of the text original as in a normal case, and to read the read image data. Is stored in the memory unit 102 in step 216. Next, the central processing unit 100 checks whether the reading of the original is completed in step 218. If the central processing unit 100 does not complete reading in step 218, the process returns to step 214 to perform steps 214 to 216 again. If reading is completed, the central processing unit 100 controls the scanner 106 to read. End the process. The above process is the same as the conventional facsimile process of reading the image of the original.

On the contrary, if the user selects the contents of the document as text, the central processing unit 100 proceeds to step 204 to control the scanner 106 to read the image of the text original. In step 206, the central processing unit 100 reads the characters by pattern recognition of the image data read in step 204, and converts the read characters into the corresponding character code data in step 208. Next, the central processing unit 100 proceeds to step 210 to store the character code data in the memory unit 102 and checks whether the reading of the original is completed in step 212. In step (212), the central processing unit 100 returns to step (204) if the reading is not completed, and performs steps (204) to (210) again. If reading is completed, the scanner 106 is controlled to read the reading. End the process.

3 is a flowchart illustrating a process of transmitting the read text document as described above. The operation according to the flowchart of FIG. 3 is programmed in the memory unit 102 to be performed by the CPU 100 of FIG. 1. Hereinafter, a method of transmitting a text original will be described in detail with reference to FIGS. 1 and 3.

First, the central processing unit 100 checks whether the original is transmitted in step 300 of FIG. If the original is not transmitted, the central processing unit 100 ends. Otherwise, if the original is transmitted, the CPU 100 checks again whether the original to be sent is a text original in step 302. If the user has not selected the contents of the original as text, the central processing unit 100 proceeds to step 306 to control the modem 108 to modulate the image data as usual. Subsequently, the central processing unit 100 transmits the image data modulated in step 308 to the telephone lines T and R through the LIU 110, and checks whether the transmission is completed by going to step 310. In step 310, the central processing unit 100 returns to step 306 if the transmission is not completed, and performs steps 306 to 308 again. If the transmission is completed, the transmission process ends. The above process is the same as that of the conventional facsimile in which the read image data is transmitted.

Unlike the above, if the user selects the content of the original as text, the central processing unit 100 proceeds from step 302 to 304 to specify that the content of the original to be transmitted to the receiving side facsimile is text. Send. Subsequently, the central processing unit 100 controls the modem 108 in step 306 to modulate the character code data, and in step 308 the telephone line T, through the LIU 110, modulates the character code data. R). The CPU 100 proceeds to step 310 while transmitting the modulated character code data and checks whether the transmission is completed. In step 310, the central processing unit 100 returns to step 306 if it has not completed the transmission of the original, and performs steps 306 to 308 again. If the transmission of the original is completed, the transmission process ends. do. In this case, in order to transmit and receive text originals in the manner described above, both the sending and receiving side facsimile machines can convert the characters into the corresponding character code data, and the image of the character font corresponding to the character code data is stored in the memory. It should be stored in the unit 102.

4 is a flowchart illustrating a process of receiving a text original converted into character code data and transmitted as described above. The operation according to the flowchart of FIG. 4 is programmed in the memory unit 102 to be performed by the CPU 100 of FIG. 1. Hereinafter, a method of receiving a text manuscript will be described in detail with reference to FIGS. 1 and 4.

First, the CPU 100 checks whether an original is received through the LIU 110 in step 400 of FIG. 4. If no original is received, the central processing unit 100 ends. On the contrary, if the original is received in step 400, the reception of the original is detected by the LIU 110, and the LIU 110 notifies the CPU 100 of the reception of the original. In response, the CPU 100 proceeds to step 402 and checks whether the received document is a text document. If the central processing unit 100 does not receive the character designation information through the LIU 110 in step 402, the central processing unit 100 proceeds to step 416 because the received data is image data. Thus, the modulated image data is received through the LIU 110 as in the normal case. Next, the central processing unit 100 controls the modem 108 at step 418 to demodulate the modulated image data, and at step 420, controls the printing unit 114 to record an image of the original according to the image data. To record. In step 420, the central processing unit 100 records the image data on the recording sheet, and proceeds to step 422 to check whether the reception is completed. In step 422, the central processing unit 100 returns to step 416 if the reception is not completed, and performs steps 416 to 420 again. If the reception is completed, the reception operation ends. The above process is the same as that of the conventional facsimile receiving image data.

On the contrary, if the central processing unit 100 receives the character designation information through the LIU 110 in step 402, the received data is the character code data. Proceed to receive the modulated character code data via the LIU (110). In step 404, the central processing unit 100 receives the modulated character code data, and in step 406, the modem 108 controls the modem 108 to demodulate the modulated character code data. Next, the central processing unit 100 reads an image of the character font corresponding to the character code data from the memory unit 102 in step 408, and the image of the character font read from the memory unit 102 in step 412. Control the printing unit 114 to record on the recording paper. In step 412, the central processing unit 100 records the image of the character font on the recording sheet, and proceeds to step 414 to check whether the reception is completed. In step 414, the central processing unit 100 proceeds to step 404 if the reception is not completed, and performs steps 404 to 412 again, and controls the LIU 110 when the reception is completed. Disconnect the line and end the receive operation.

As described above, when the character manuscript is sent from the facsimile, the character is recognized as a pattern and transmitted as the character code data, and when the character code data is received, the character side transmits the character manuscript as image data by recording it as an image of the corresponding character font. The image quality of text originals is improved compared with when receiving. In addition, the transmission speed is improved by reducing the amount of data by transmitting the character code data.

As described above, the present invention improves the quality of transmitted and received text documents when sending and receiving text documents using a facsimile, and improves the transmission speed by reducing the amount of data by transmitting text code data. have.

Claims (1)

In the method of sending / receiving text documents using a facsimile machine, When sending an original, the process of reading the original selected as a text original, Recognizing image data of the read text document by pattern recognition and reading the corresponding text; Converting the read character into corresponding character code data and transmitting the converted character code data; Reading an image of a character font corresponding to the transmitted character code data from a memory unit at the time of original reception; And a process of recording the image of the character font read from the memory unit on a recording sheet.

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