JPS62160851A - Data communication method - Google Patents

Abstract

PURPOSE:To apply data communication by sending/receiving a data via a modulation/demodulation section and a line control section equipped with a facsimile equipment so as to use a communication terminal equipment with a simple constitution. CONSTITUTION:In sending a data from a facsimile equipment 8 to a facsimile equipment 9, a picture data read by an original read section 1 is coded by a control section 5, modulated by a modulation circuit 3 and sent to a public telephone circuit through a line connection section 4. On the other hand, a received picture data is demodulated by a demodulation circuit 3 through the connection section 4, decoded by the control section 5 and recorded by a recording section 2. In using a personal computer 6 to make data communication, a transmission request is sent from the personal computer 6 to the control section 5 through an interface circuit 7. The control section 5 controls the modulation/demodulation section 3 and the connection section 4 to dial the number of the opposite party and the modulation section 3 modulates the data and sends it to a telephone line via the connection section 4. The data is recorded the same as the conventional facsimile communication as reception. Thus,the data communication is attained in this way.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a data communication method, and particularly to a data communication method suitable for simplifying the configuration of a communication terminal.

[Background of the invention]

In addition to data communication between facsimile machines, data communication is also being carried out between facsimile machines and computers, such as personal computers.

When performing data communication between such terminal devices of different models, conventionally, as described in Japanese Patent Laid-Open No. 59-65867, a transmission control device for the transmitting and receiving terminals is installed in addition to the facsimile machine or the personal computer. The user's personal computer 8 is connected to a telephone line via this transmission control device, and information is sent and received to and from facsimile machines located elsewhere.

For this reason, in the past, there was a problem that the amount of hardware increased due to the necessity of providing a power transmission control device, and the cost was also high.

[Purpose of the invention]

An object of the present invention is to provide a data communication method that allows low-cost communication using a communication terminal with a simple configuration.

[Summary of the invention]

In order to achieve the above object, the present invention utilizes the modulation/demodulation/line control functions provided in the C1 facsimile machine as a transmission control device to perform data communication.

[Embodiments of the invention]

Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

The figure is a hardware configuration diagram for carrying out a data communication method according to an embodiment of the present invention, and shows a case where data communication is carried out between a personal computer 6 and a facsimile machine 9 via a public telephone line and an exchange 10. The facsimile machine 8 connected to the personal computer 6 usually has a document reading section 1. Recording section 2.
The modulation/demodulation section 31 includes a line connection section 4 and a control section 5 that controls these and performs encoding and decoding of image data. A typical facsimile machine with these components will by its nature have a speed of 300 BPS for handshaking.
, 2400.4800.7200 for sending and receiving image data
．． It has each channel of 9600BPS.

Then, when transmitting from the facsimile device 8 to the facsimile device 9, the image data read by the document reading section 1 is
The signal is encoded by the control section 5, modulated by the modulation circuit 6, and transmitted to the public telephone line through the line connection section 4. On the other hand, when receiving, the received image data is demodulated by the demodulation circuit 3 through the line connection section 4, decoded by the control section 5, and then recorded by the recording section 2.

The facsimile device 8 according to the present embodiment includes the above-mentioned document reading section 1. Recording section 2. Modulation/demodulation section 31 line control section 4. In addition to the control section 5, it is provided with an interface section 7 connected to a control W155, and via this interface section 7 is connected to an external device, for example, a personal computer 6.

When performing data communication using the personal computer 6, the personal computer 6 sends a transmission request to the control unit 5 through the interface circuit 7, and the control unit 5 responds to this signal if general facsimile communication is not being performed. return. Next, when the personal computer 6 sends information such as the destination dial number, the control section 5 controls the modem section 31 and the line connection section 4 to dial the destination, and when a response is returned from the exchange 10, the next step is to The data to be sent is modulated by the modulation section 3 and sent to the telephone line through the line connection section 4. At the time of reception, the data is recorded in the recording section in the same way as in normal facsimile communication.

〔Effect of the invention〕

According to the present invention, the control unit, etc. equipped in a facsimile machine is used for communication with a communication terminal other than the facsimile machine, such as a personal computer, so that inexpensive and highly efficient data communication can be achieved without increasing the amount of hardware. It becomes possible.

[Brief explanation of drawings]

The figure is a hardware configuration diagram for carrying out a data communication method according to an embodiment of the present invention. 1... Original reading section 2... Recording section 6... Modulation/demodulation section 4... Line connection section 5... Control g
6... External device 7... Interface circuit 8... Facsimile device 9... Facsimile device 10... Switching machine

Claims (1)

[Claims] 1. A data communication method using a communication terminal device other than a facsimile machine, characterized in that data is transmitted and received via a modulation/demodulation section and a line control section equipped with the facsimile machine.