KR19990011673A - Fax machine with built-in terminal device - Google Patents

Abstract

The present invention incorporates a function of a terminal adapter (TA) necessary for accessing a facsimile device to an integrated information communication network (ISDN) inside the facsimile device to connect the facsimile device to the comprehensive information communication network without access to an external terminal device. The present invention relates to a facsimile device with a built-in terminal device.

The present invention provides a facsimile device for accessing an integrated information network (ISDN), comprising: a first microprocessor unit for controlling a system of each unit, a first memory unit for storing image data storage and system control programs; A scanner unit for reading image data, a print unit for outputting the data scanned by the scanner unit, a pixel conversion unit for processing the image data, a modem unit performing a demodulation function for transmitting and receiving the image data, dialing information and various states And a terminal device for controlling the connection to the integrated information network, wherein the terminal device includes a second microprocessor unit for controlling the connection to the integrated information network, and transmits and receives through the integrated information network. Memory for storing the data and the program of the integrated information network And a codec unit for converting digital information input through the integrated information communication network into pulse code modulation data to fit an analog terminal, and using the D-channel protocol in the integrated information communication network by control information of the second microprocessor unit. It characterized in that it comprises a line interface for connecting the ISAC and the integrated information network.

In the present invention, the function of the terminal device is built into the facsimile device, thereby enabling the facsimile device to be connected to a comprehensive information network without using an external terminal device, thereby reducing the cost and providing the terminal device. Simple configuration makes it possible to easily configure the system configuration.

Description

Fax machine with built-in terminal device

The present invention relates to a facsimile device and a general information communication network access device that enables a facsimile device having a terminal device (TA) embedded therein to be connected to an integrated services digital network (ISDN). In order to connect the G3 facsimile device, which is an analog terminal, to the Integrated Services Digital Network (ISDN), the built-in function of the terminal equipment is built into the facsimile device to connect the facsimile device to the Integrated Services Digital Network (ISDN) without access to an external terminal device The present invention relates to a facsimile device with a built-in terminal device and a general information communication network access device.

An integrated information communication network (ISDN) is a network configured based on a network for digital transmission exchange, and also has a function of communication processing as an integrated information communication network.

With the completion of such a comprehensive information communication network, a multimedia communication service can be realized through a unified interface without distinguishing between telephone service and non-vision service.

In this case, the communication service uses 64 Kbps as its basic unit, and in the communication service requiring a larger transmission path, this integer multiple transmission path is used.

Until now, a separate network has been constructed for each service, but subsequent networks are integrated under a comprehensive information communication network to provide a plurality of communication services in one network.

Accordingly, FIG. 1 is a block diagram for connecting a facsimile apparatus used for facsimile communication using a conventional public line switching network (PSTN) and a comprehensive information communication network, and largely controls the connection between the facsimile apparatus 200 and the integrated information communication network (ISDN). Is configured as a terminal device (TA).

The fax machine 200 includes a first microprocessor unit 10 for controlling a system of each unit, a first memory unit 20 for storing image data storage and system control programs, and a scanner unit for reading image data ( 30), a print unit 40 for outputting the data scanned by the scanner unit, a pixel converting unit 50 for processing image data, and a modem unit for performing a demodulation function for transmitting and receiving image data through a public line switching network. 60, a line interface unit 70 for connecting the line, and an operating panel (OPE) 80 for displaying dialing information and various states for the user to connect the public line switching network.

More specifically, the first memory unit 20 for storing the system operation file and the image data is composed of an EPROM for storing the system operation file and a DRAM or SRAM for storing the image data and system management parameters. Reference numeral 30 denotes an input unit for reading an original using a CCD or CIS and having a resolution of 200 dpi.

The operation panel 80 processes the dial information input by the user for line connection or performs a function of informing the user of the status of the facsimile apparatus by using an LCD device or other device.

The first microprocessor unit 10 connects the line through the line interface unit 70 using information transmitted to the operation panel 80, and the line interface unit 70 connects the public line switching network (PSTN). This module performs the functions for line impedance matching, loop current control, ring detection and generation, or 4/2 wire conversion and 2/4 line conversion for converting 4-wire signals into 2-wire signals. .

FIG. 2 is an internal configuration diagram of the terminal device of FIG. 1. As in the configuration of FIG. 2, the terminal device TA includes a second microprocessor unit 110 and a second memory unit 120 for controlling a system of each unit. And a SLIC (Subscriber Line Interface Controller) 130 which is connected to a public line switching network (PSTN) terminal and performs line control and functions such as a function provided by the exchange, and a pulse code modulation to fit an analog signal to a digital line. A codec unit 140 for converting to a PCM, an ISDN Subscriber Access Controller (ISAC) 150 for performing layer 1, layer 2, and layer 3 functions for access control of an integrated information network (ISDN), and an integrated information network. It is composed of a line interface unit 160 that satisfies the physical, electrical, and mechanical standards for connection, and a power supply unit 170 for supplying power required for each system.

The ISAC 150 performs line coding and line activation / deactivation functions, which are ISDN layer 1 functions for D channel control, and a link access procedure on the Dchannel (LAPD) function, which is a layer 2 function. It receives the data from the SLIC 130 for channel transmission and configures it in the form of a high level data link control (HDLC) frame to transmit it through the line interface unit 160, and the reception performs the reverse process of transmission.

In addition, in order to use the analog terminal G3 facsimile apparatus connected to the integrated information communication network (ISDN), the function of the terminal apparatus TA should be used.

The function of the terminal device (TA) is to connect the analog terminal device to an ISDN line, and a rate adaptation function that matches the transmission speed of the analog terminal to the transmission speed of the integrated information network. It performs two-wire, four-wire and four-wire and two-wire conversion functions, and a line connection function of the exchange such as ring generation function and DTMF detection function.

That is, the signal transmitted and received by the modem unit 60 in the facsimile apparatus is a 4-wire system, and the line interface unit 70 converts the signal into a 2-wire system, which is then 4-wired by the SLIC 130 in the terminal device TA. Conversion to the

Therefore, the transmission and reception information of the modem unit 60 is composed of four wires, which is suitable for four-wire transmission required for subscriber terminal access in an integrated information communication network (ISDN), but in order to access the terminal device TA, which is an external matching device. Again, the 4 line and 2 line conversion process must be performed.

In addition, in order to interwork with the line interface unit 70 of the facsimile apparatus, a feed function, a ring generation function, a tone detection function and a line matching function should be included.

However, such a conventional facsimile device has a disadvantage in that the same function is repeatedly performed because the facsimile device can be accessed only if the facsimile device has a function of the terminal device TA.

In addition, since the function of the terminal device (TA) is very expensive, there is a disadvantage that wastes a lot of cost, or separate power supply to the facsimile device and the terminal device (TA).

In addition, there is a disadvantage that an unnecessary procedure is performed, such as converting a digital ring signal input through an integrated information communication network into an analog ring signal, and converting the converted analog ring signal into a digital ring signal.

Therefore, the present invention was made to solve the above-mentioned disadvantages, and in particular, the present invention provides a built-in function of the terminal device for connecting the integrated information communication network (ISDN) to the G3 facsimile device, which is an analog terminal. It is possible to bring the cost savings by connecting a comprehensive information communication network to a facsimile device without accessing an external terminal device, and to easily configure the system by simply configuring the terminal device. The purpose is.

1 is a block diagram for connecting a conventional facsimile apparatus and a comprehensive information communication network;

2 is a diagram illustrating an internal configuration of the terminal device of FIG.

3 is a block diagram for connecting a facsimile apparatus incorporating a terminal apparatus of the present invention and a comprehensive information communication network;

Figure 4 is a block diagram of another embodiment of the present invention

5 is a detailed circuit diagram of the terminal device of FIG.

* Explanation of symbols used in the main part of the drawing

10: first microprocessor unit 110: second microprocessor unit

20: first memory part 120: second memory part

60: modem section 140: codec section

150: ISAC 160: line interface

200, 300, 400: Fax machine TA, TA1, TA2: Terminal device

ISDN: Integrated Information Network

In the present invention to achieve the above object, a facsimile apparatus,

A first microprocessor unit for controlling a system of each unit, a first memory unit for storing image data storage and system control programs, a scanner unit for reading the image data, a printer unit for outputting data scanned by the scanner unit, and A pixel conversion unit for processing image data, a modem unit for performing a demodulation function for transmitting and receiving the image data, an operation panel for displaying dialing information and various states to a user, and a terminal device for controlling a connection to a comprehensive information communication network, The terminal apparatus includes a second microprocessor unit for controlling access to the integrated information network, a second memory unit for storing data transmitted and received through the integrated information network, and a program of the integrated information communication network, and the integrated information. Analog signal input through communication network to fit digital line A codec unit for converting to pulse code modulation, an ISAC using a G3 protocol in the integrated information communication network according to control information of the second microprocessor unit, and a line interface unit for connecting to the integrated information communication network; It is done.

Another object of the invention in the facsimile apparatus,

A microprocessor unit for controlling the system of each unit, a memory unit in which image data storage and system control programs are stored, a scanner unit reading the image data, a printing unit outputting the data scanned by the scanner unit, and processing the image data A pixel conversion unit, a modem unit performing a modulation / demodulation function for transmitting and receiving the image data, an operation panel for displaying dialing information and various states to a user, and a terminal device for controlling a connection to a comprehensive information network; And a codec unit for converting an analog signal input through the integrated information communication network into a pulse code modulation to fit a digital line, and control information of the microprocessor unit controlling the connection of the integrated information network. ISAC and protocols using protocols And that includes a line interface for connection with a communication network in its characteristic.

Hereinafter, the configuration according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

3 is a block diagram illustrating a connection between a facsimile apparatus incorporating a terminal apparatus of the present invention and a comprehensive information communication network. As shown in FIG. 3, a facsimile apparatus 300 includes a first micro for controlling a system of each part. A processor unit 10, a first memory unit 20 in which image data storage and system control programs are stored, a scanner unit 30 reading the image data, and outputting data scanned by the scanner unit A connection between a print unit 40, a pixel conversion unit 50 for processing the image data, a modem unit 60 for performing a demodulation function for image data transmission and reception via a public line switching network, and a public line switching network connection. A control panel 80 for displaying dialing information and various states to a user, and a terminal device TA1 for controlling the connection of the integrated information communication network (ISDN), the terminal according to this embodiment. The apparatus TA1 includes a second microprocessor unit 110 for controlling an ISDN connection, a data for storing data transmitted and received through the integrated information network, and a program for an integrated information network. A second memory unit 120, a codec unit 140 for converting an analog signal input through the integrated information communication network into a pulse code modulated signal for a digital line, and the control information of the second microprocessor unit. An ISAC 150 using a D-channel protocol in an integrated information communication network (ISDN), and a line interface unit 160 for connection with the integrated information communication network.

Referring to the working effect of the present invention configured as described above according to the embodiment as follows.

FIG. 3 is a block diagram of the present invention for connecting a facsimile apparatus and a comprehensive information communication network. FIG. 3 shows the same parts as those of FIG.

First, the scanner unit 30 scans the image data, and the scanned image data is coded by the pixel conversion unit 50 and then stored in the first memory unit 20, and at the same time, scanned by the print unit 40. Output the data.

At this time, the modem unit 60 performs a demodulation function for transmitting and receiving image data, and the codec unit 140 in the terminal device TA1 connects the facsimile device 300 to a terminal device connected to an integrated information communication network (ISDN). The analog signal is converted into a digital signal for transmission and reception of the signal, that is, the analog information is converted into pulse code modulation (PCM) to fit the digital line.

Here, the first microprocessor 10 separates channels or controls each system, and the operation panel 80 functions to display dialing information and various states for the PSTN connection.

In addition, the integrated information communication network (ISDN) is performed by performing layer 1, layer 2, and layer 3 functions by controlling information of the second microprocessor unit 110 that controls the codec unit 140 and controls the connection of the integrated information communication network (ISDN). The transmission and reception data and the system program are stored in the second memory unit 120 so that they can be accessed.

Accordingly, the second microprocessor unit 110 in the terminal device 200 is a microprocessor unit only for controlling an integrated information communication network (ISDN), which performs a different function from that of the first microprocessor unit 10.

Here, the second memory unit 120 in the terminal device 200 is composed of an EPROM having a capacity of 64 KBYTE and a SARM having a capacity of 32 KBYTE. The EPROM includes a line interface unit 160, an ISAC 150, and a codec unit 140. The program is used for program storage to control the SRAM.

Therefore, the above configuration deletes the existing public line switching network (PSTN) line interface unit 70 (see FIG. 1) and embeds the terminal device TA1 inside the facsimile device 300 without changing resources of the existing facsimile device. It can be used to bring cost savings.

On the other hand, Figure 4 is a configuration diagram of another embodiment of the present invention for the easier configuration of the system according to the user's use, as shown in the facsimile apparatus 400, the microcontroller for controlling the system of each part A processor unit 10, a memory unit 20 for storing image data storage and system control programs, a scanner unit 30 for reading the image data, a print unit 40 for outputting data scanned by the scanner unit, A pixel conversion unit 50 for processing the image data, a modem unit 60 for performing a modulation / demodulation function for transmitting and receiving the image data, an operation panel 80 for displaying dialing information and various states to a user, and a comprehensive information communication network And a terminal apparatus TA2 for controlling a call forwarding, wherein the terminal apparatus TA2 according to this embodiment is configured to analogize digital information input through the integrated information communication network. The codec unit 140 converts the pulse code modulation data into an analog sing code so as to fit the terminal, and the control information of the microprocessor unit 10 controlling the connection to the integrated information communication network. ISAC 150 using a channel protocol and a line interface unit 160 for connecting to the integrated information communication network.

5 is a detailed circuit diagram of the terminal device of FIG.

As described above, the configuration of FIG. 3 is composed of two first and second microprocessor units 10 and 110 and two first and second memory units 20 and 120. The configuration is configured to control the codec unit 140 and the ISAC 150 using the microprocessor unit 10 in the facsimile apparatus 400.

That is, the microprocessor unit in the facsimile apparatus 400 without using two first and second microprocessor units 10 and 110 and two first and second memory units 20 and 120. By controlling the codec unit 140 and the ISAC 150 using the reference numeral 10, the system can be easily configured according to the user's purpose.

That is, in the integrated information communication network (ISDN), the R connection function and the S connection function are performed to perform the same layer 1, layer 2, and layer 3 functions as the counterpart terminals, thereby connecting mutual communication paths.

At the same time, when the B channel connection among the plurality of channels is completed, the G3 facsimile protocol can be transmitted through the B channel to perform facsimile communication with the terminal connected to the integrated information communication network (ISDN).

At this time, the opposite terminal may be either G4 or G3 facsimile. The reason is that the G4 facsimile is standardized to support the G3 facsimile so that the call is possible because the terminal equipment (TA) is used to access and use the G3 facsimile or the Integrated Services Digital Network (ISDN). That is, the state in which the B channel connection is completed is the same as that of the transmitting terminal and the receiving terminal interconnected in a public switched network (PSTN).

As described above, the present invention has the following advantages by implementing a function of a terminal device necessary for connecting the G3 facsimile device for analog terminal to an integrated information communication network (ISDN) inside the facsimile apparatus.

First, the G3 facsimile device can be communicated without the need for a separate terminal device for use in an integrated information network (ISDN). Also, by embedding the terminal function into the facsimile device, the facsimile device can be connected to the integrated information network without the addition of external devices. There is an advantage to this.

Second, there is an advantage that it is not necessary to add the function of the power supply unit and the subscriber line connection SLIC required for the terminal device by embedding the terminal device function inside the facsimile device.

Third, since the line interface unit can be replaced without changing the hardware structure of the existing G3 facsimile apparatus, there is an advantage of providing convenience for the user by easily configuring the system according to the user's purpose.

Claims (4)

In the facsimile apparatus, A first microprocessor unit for controlling the system of each unit; A first memory unit for storing image data storage and system control programs; A scanner unit for reading the image data; A print unit configured to output data scanned by the scanner unit; A pixel converter which processes the image data; A modem unit performing a modulation / demodulation function for transmitting and receiving the image data; An operation panel displaying dialing information and various states to a user; It includes a terminal device for controlling the connection to the integrated information communication network, The terminal device, A second microprocessor unit for controlling said integrated information network connection; A second memory unit for storing data transmitted and received through the integrated information communication network and a program of the integrated information communication network; A codec unit for converting pulse code modulation data into an analog signal so as to fit the digital information input through the integrated information communication network into an analog terminal; An ISAC using a D-channel protocol in the integrated information communication network by the control information of the second microprocessor unit; And a line interface unit for connecting to the integrated information communication network. The method of claim 1, Connecting the second microprocessor unit for controlling the connection to the integrated information network in series with the modem unit performing a demodulation function for transmitting and receiving image data, and to fit the analog signal inputted through the integrated information network to the digital line; The ISAC for serially connecting the codec unit for converting the pulse code modulation to the modem unit, and using the D-channel protocol in the integrated information communication network by the control information of the second microprocessor unit. And a serial device connected in series with the codec unit, and serially connecting an ISAC serially connected with the codec unit with a line interface unit for line connection with the integrated information communication network. In the facsimile apparatus, A microprocessor unit for controlling the system of each unit; A memory unit for storing image data storage and system control programs; A scanner unit for reading the image data; A print unit configured to output data scanned by the scanner unit; A pixel converter which processes the image data; A modem unit performing a modulation / demodulation function for transmitting and receiving the image data; An operation panel displaying dialing information and various states to a user; It includes a terminal device for controlling the connection to the integrated information communication network, The terminal device, A codec unit for converting pulse code modulation data into an analog signal so as to fit the digital information input through the integrated information communication network into an analog terminal; An ISAC using a D-channel protocol in the integrated information communication network by control information of the microprocessor unit controlling the access to the integrated information network; A facsimile device incorporating a terminal device including a line interface unit for connecting to the integrated information communication network. The method of claim 4, wherein Connecting the codec unit for converting the pulse code modulation data into an analog signal so that the digital information inputted through the integrated information communication network is converted into an analog signal, in series with the modem unit performing a modulation / demodulation function for transmitting and receiving image data; A codec unit serially connected to the unit is serially connected to the ISAC using the D-channel protocol in the integrated information communication network by the control information of the microprocessor unit, and the ISAC connected in series with the codec unit is connected to the integrated information communication network. A facsimile device with a built-in terminal device, characterized in that connected in series with the line interface for the line connection control.