KR19990056129A - How to share memory between a personal computer and a facsimile device - Google Patents

Abstract

The present invention relates to a method of sharing a memory by making a memory of a personal computer available as a memory of a facsimile device.

Non-standard serial communication between the personal computer and the facsimile is performed to store transmitted image data or received image data in a memory of the personal computer so that the memory is shared between the personal computer and the facsimile apparatus.

Description

How to share memory between a personal computer and a facsimile device

The present invention relates to a memory sharing method between a personal computer and a facsimile device, and more particularly, to a method of sharing a memory by allowing a memory of the personal computer to be used as a memory of the facsimile device.

In general, the communication between a personal computer and a facsimile device is mainly a class 1 (class 1) and a class 2 (class 2) protocol. The AT communication protocol is mainly performed by using an AT command. It allows communication between computers.

However, in a conventional facsimile apparatus connected to a personal computer, a memory provided in the facsimile apparatus is used to store scanned image data and received image data. Therefore, in order to perform functions used in connection with a personal computer in the facsimile apparatus, a large capacity memory is used in comparison with a facsimile apparatus not connected to the personal computer, thereby increasing manufacturing costs.

Accordingly, an object of the present invention is to provide a method of sharing a memory by using a memory of a personal computer as a memory of a facsimile apparatus.

Another object of the present invention is to provide a method for reducing the manufacturing cost of a facsimile device by sharing the memory of the personal computer with the facsimile device.

In order to achieve the above object, the present invention performs non-standard serial communication between a personal computer and the facsimile to store transmitted image data or received image data in a memory of the personal computer so that the memory is shared between the personal computer and the facsimile apparatus. It is characterized by.

1 is a connection diagram between a personal computer and a facsimile according to an embodiment of the present invention.

2 is a control flowchart for sharing a memory between a personal computer and a facsimile device during image data transmission according to an embodiment of the present invention.

3 is a control flowchart for sharing a memory between a personal computer and a facsimile device upon receiving image data according to an embodiment of the present invention.

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

1 is a configuration diagram of a connection between a personal computer and a facsimile device according to an embodiment of the present invention.

The control unit 102 controls the overall operation of the facsimile according to the control program stored in the ROM 114 and controls to store the scanned image data or the received image data in the memory of the personal computer 200. The LIU (Line Interface Unit) 118 connects the telephone line to the modem 116 under the control of the control unit 102, detects an incoming ring, and provides it to the control unit 10. The modem 116 demodulates a modulated signal input through the LIU 118 and modulates a signal to be sent to a telephone line through the LIU 118. The keypad 104 sets a function provided by the facsimile, or consists of a plurality of keys such as a function key, a memory transmission mode selection key, and a shortcut key, and provides the controller 102 with key data by pressing the key. The LCD 106 displays the current operating state of the facsimile under the control of the controller 102. When the transmission or copy mode is set, the scanner 108 reads a document supplied under the control of the control unit 102, converts the document into image data, and provides it to the control unit 102. The printer 110 prints the received image data or the read image data under the control of the controller 102. The ROM 114 stores a control program executed by the controller 102. The RAM 112 stores image data received or read under the control of the control unit 102 when performing a specific function of the facsimile, or temporarily stores data generated when the facsimile performs a function. The serial communication unit 120 performs serial communication with the personal computer 200.

The RS232C interface 208 interfaces for serial communication between the personal computer 200 and the facsimile device 100 through the serial communication unit 120 and RS232C. The PC main body 202 controls to store data received from the facsimile device 100 when a data storage request signal is received from the facsimile device 100. The keyboard 204 includes an information search key or an information input key and generates various key signals and inputs them to the PC main body 202. The monitor 206 displays various types of information under the control of the PC main body 202.

2 is a control flowchart for sharing a memory between a personal computer and a facsimile apparatus during image data transmission according to an embodiment of the present invention.

Hereinafter, the operation of the preferred embodiment of the present invention will be described in detail with reference to FIGS. 1 to 2.

First, in step 301, the controller 102 checks whether an original is inserted in the document glass, and if the original is inserted, proceeds to step 302. In step 302, the control unit 102 drives a feed roller (not shown) to load an original. At this time, the user presses the other party's fax number when the document loading is finished. Then, in step 303, the controller 102 inputs the other party's fax number input from the keypad 104. In step 304, the controller 102 checks whether the memory transmission mode selection key is pressed from the keypad 104. If the memory transmission mode selection key is not pressed, the controller 102 proceeds to step 305 to scan and transmit the original in the normal fax mode. However, if the memory transmission mode selection key is pressed, the process proceeds to step 306 and the control unit 102 transmits a memory transmission use request signal to the personal computer 200 and proceeds to step 307. At this time, the personal computer 200 receives the memory use request signal and transmits the available response signal to the facsimile 100 when the memory is available. Then, in step 307, when receiving the memory available response signal, the control unit 102 scans the document and sends the image data to the personal computer 200 in step 308. The PC main body 202 of the personal computer 200 receives the image data and stores it in the memory. Then, in step 309, the control unit 102 checks whether the scan is completed. If the scan is not completed, the control unit 102 returns to step 308 and continuously stores the scanned data in the memory of the PC main body 202, and proceeds to step 310 if the scan is completed. In step 310, the control unit 202 dials the entered counterpart fax number and reads and transmits the image data stored in the personal computer 200. In step 311, the control unit 102 checks whether or not the transmission is completed. If the transmission is not completed, the control unit 102 returns to step 310 to continuously transmit the image data stored in the personal computer 220, and terminates the operation if the transmission is completed.

3 is a control flowchart for sharing a memory between a personal computer and a facsimile device upon receiving image data according to an embodiment of the present invention.

The operation of storing the received image data in the memory of the personal computer 200 when the image data is received by the facsimile apparatus will be described with reference to the flowchart of FIG. 3. In step 401, the controller 102 checks whether a ring incoming signal is detected and receives a ring incoming call. If a signal is detected, the process proceeds to step 402. In step 402, the controller 102 determines whether the memory reception mode is set, and if it is set in the memory reception mode, the controller 102 proceeds to step 405. In step 405, the controller 102 transmits a memory use request signal to the personal computer 200. At this time, the personal computer 200 receives the memory use request signal and transmits the available response signal to the facsimile 100 when the memory is available. Then, in step 406, the controller 102 proceeds to step 407 when receiving the memory available response signal. In step 407, the control unit 102 sends the received image data to the personal computer 200, and the PC main body 202 of the personal computer 200 receives the image data and stores it in the memory. Then, in step 408, the control unit 102 checks whether the reception is completed. If the reception is not completed, the control unit 102 returns to step 407 and continuously stores the received image data in the memory of the PC main body 202, and ends the operation if the reception is completed. However, if the memory reception mode is not set in step 406, the process proceeds to step 403 to receive image data in the general fax reception mode and to print on the recording paper. In this way, in step 404, the control unit 102 checks whether the paper has run out while printing the image data on the recording paper, and if the paper has not run out, continues to print the image data received on the recording paper. However, if the paper runs out, the process proceeds to steps 405 to 408 described above to store the received image data in the personal computer. In this way, the image data stored in the personal computer 200 can be printed on the summary or displayed on the monitor 206.

As described above, according to the present invention, the memory of the facsimile apparatus is shared by using the memory of the facsimile machine, so that the memory of the facsimile apparatus does not use a large memory, thereby reducing the cost and using the memory of the personal computer. By storing the image data, it is possible to prevent the image data from being received due to the memory pool.

In addition, there is an advantage that the recording paper can be saved by displaying the image data received on the personal computer so as not to print unnecessary image data.

Claims (4)

In a method of sharing a memory by connecting a personal computer and a facsimile device, When you load a document to send a document, dial the relative fax number, and then select a memory transmission mode, you can perform the serial communication between the personal computer and the facsimile device and send the scanned image data for transmission from the facsimile device. And storing the stored image data when the scanning of the image data is completed after the data is stored in the memory. In a method of sharing a memory by connecting a personal computer and a facsimile device, When inserting the document on the platen glass, load the document and dial the other fax number. Dialing the relative fax number and selecting a memory transmission mode; Transmitting a memory use request signal to a personal computer when the memory transmission mode is selected; Scanning an original and storing image data in a memory of the personal computer when a response signal corresponding to the transmitted memory use request signal is received; And storing and storing the stored image data when the image data is completely stored in the memory of the personal computer. The method of claim 2, And transmitting the image data in a normal fax mode when the memory transmission mode is not selected as the memory transmission mode. In a method of sharing a memory by connecting a personal computer and a facsimile device, Detecting whether the ring reception is set to the memory reception mode; Transmitting a memory use request signal to a personal computer when the memory reception mode is set; And storing the received image data in a memory of the personal computer when a response signal corresponding to the transmitted memory use request signal is received.