JPH0983669A - Modem equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily print out data stored in an internal memory by an external FAX equipment and also to easily fetch original data which is read by the external FAX equipment in the internal memory. SOLUTION: A MODEM equipment is the equipment providing the internal memory capable of storing transmission/reception data and an internal exchange part capable of selectively connecting a MODEL modulating-demodulating part, the external FAX equipment and an external telephone set to a telephone line with one line. The internal exchange part 10 is provided with relays R41 and R42 in addition to the relays R11 to R32. When data stored in the internal memory is printed-out by the external FAX equipment 2, the MODEM equipment is made to be in a memory data FAX printing mode. When original data read by the external FAX equipment 2 is fetched to the internal memory, the MO DEM equipment is made to be in the FAX reading memory reception mode so that the MODEM modulating/demodulating part 20 is connected to the external FAX equipment 2 by the control of the respective relays R11 to R42.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a so-called FAX modem, which is a modem device equipped with a facsimile (hereinafter referred to as FAX) transmission / reception function.

[0002]

2. Description of the Related Art As a fax modem, a modem device having an internal memory capable of storing transmission / reception data and having a modem modulating / demodulating part, a fax device and an internal switching part capable of selectively connecting a telephone to one telephone line is considered. , Marketed by the applicant.

According to this modem device, data from the personal computer is temporarily stored in the internal memory of the modem device while the personal computer (hereinafter abbreviated as personal computer) is powered on, and then the power of the personal computer is turned off. The modem device itself can transmit from the internal memory of the modem device to the telephone line, and while the power of the personal computer is turned off, the data from the telephone line is received and temporarily stored in the internal memory of the modem device. The power of can be turned on and the data can be loaded into the personal computer from the internal memory of the modem device.

In addition, one of the modem modulation / demodulation unit, the FAX device and the telephone is selectively connected to one telephone line, and as described above, the internal memory is used or the internal memory is not used. , Data can be transmitted from a personal computer to a telephone line, or data can be received from a personal computer to a telephone line, or FAX can be transmitted / received by a FAX device, or a telephone call can be performed by a telephone.

FIG. 6 shows a communication system using the above modem device. The modem device 90 includes a telephone line 1, an external FAX device 2, an external telephone 3, a personal computer 4, and an AC power adapter (not shown). Connected, PC 4
A printer 5 is connected to.

The modem device 90 includes an internal exchange section 91, a modem modulation / demodulation section 92, a control section 93, an internal memory 94, an operation input section 95 and the like.

As shown in FIG. 7, the internal exchange section 91 includes
Relays R11 and R12 for selectively connecting the telephone line 1 to either the modem modulation / demodulation unit 92, the external FAX apparatus 2 or the external telephone 3 and the external FAX apparatus 2 are connected to the telephone line 1 or the telephone line 1 Relays R21, R22 for disconnecting from the telephone line 1 and a relay R for connecting the external telephone 3 to the telephone line 1 or disconnecting from the telephone line 1.
31, R32 are provided.

The relays R11, R12, R21, R22 and R31, R32 are switched by relay control signals S10, S20 and S30 from the control unit 93, respectively. However, in the standby state of the modem device 90, the relay control signals S10, S20 and S3 are
0 is turned off, and the relays R11 and R12 connect the telephone line 1 to the modem modulation / demodulation unit 92 as shown in the figure.
The relays R21 and R22 are switched to disconnect the external FAX apparatus 2 from the telephone line 1 and the relays R31 and R32 to disconnect the external telephone 3 from the telephone line 1, respectively.

An incoming call detection circuit 11 is provided on the movable contact side of the relay R12, an off-hook detection circuit 12 is provided on the movable contact side of the relay R22, and an off-hook detection circuit 13 is provided on the movable contact side of the relay R32. Detection circuit 1
1 and the detection outputs of the off-hook detection circuits 12 and 13 are
Each is supplied to the control unit 93. Although omitted in the figure,
In addition, the internal exchange unit 91 is provided with a call signal generation circuit, a power supply circuit, and the like.

The modem device 90 can automatically switch and receive data from the other party's modem, or a normal FAX or telephone from the other party. In that case, the operation input section 95 allows the modem device 90 to receive the data. Switch to automatic reception mode.

In this case, if there is an incoming call from the telephone line 1,
The incoming call detection circuit 11 detects the incoming call, and the control unit 93
Will be notified. When the incoming call is data from the other modem, the control unit 93 turns on the relay control signal S10 to switch the relays R11 and R12 to the state in which the telephone line 1 is connected to the modem modulation / demodulation unit 92. The data from the partner modem is stored in the internal memory 94.

Even when the incoming call is a normal FAX and the modem device 90 is set to the FAX memory reception mode in advance, the control unit 93 turns on the relay control signal S10 to turn on the relay R11, The R12 is switched to the state in which the telephone line 1 is connected to the modem modulation / demodulation unit 92, whereby the FAX data from the other party is stored in the internal memory 94.

The data stored in the internal memory 94 is later taken into the personal computer 4 from the modem device 90,
It is possible to print out by the printer 5 connected to the personal computer 4.

Further, in the case where the incoming call is a normal FAX,
When the modem device 90 is not set to the FAX memory reception mode in advance, the control unit 93 causes the relay control signal S10 to remain in the OFF state, that is, the relay R1.
1 and R12 keep the telephone line 1 disconnected from the modem modulation / demodulation unit 92, and turn on the relay control signal S20 to switch the relays R21 and R22 to the state in which the external FAX apparatus 2 is connected to the telephone line 1. As a result, the external FAX apparatus 2 receives the FAX data from the other party and prints it out.

Further, when the incoming call is a normal telephone call, the control unit 93 keeps the relay control signal S10 in the off state, that is, the relays R11 and R12 keep the telephone line 1 disconnected from the modem modulation / demodulation unit 92. The relay control signal S30 is turned on, and the relays R31, R32
To switch the external telephone 3 to the telephone line 1. This allows the external telephone 3 to talk with the other party.

When the data stored in the internal memory 94 or the data from the personal computer 4 is transmitted to the telephone line 1 by FAX transmission or the like, the relay control signal S10 is transmitted by the switching operation of the operation input section 95. In the ON state, the relays R11 and R12 are switched to the state in which the telephone line 1 is connected to the modem modulation / demodulation unit 92. This allows
The data accumulated in the internal memory 94 or the data from the personal computer 4 can be transmitted to the telephone line 1.

Further, in the case of FAX transmission from the external FAX apparatus 2, the external FAX apparatus 2 is off-hooked by a transmission operation on the external FAX apparatus 2, and the control unit 9
3, the relay control signal S10 remains in the OFF state, that is, the relays R11 and R12 remain in the state where the telephone line 1 is disconnected from the modem modulation / demodulation unit 92.
To the ON state and set the relays R21 and R22 to the external FAX.
Switch the device 2 to the state of connecting to the telephone line 1. As a result, the FAX data from the external FAX device 2 is transmitted to the telephone line 1.

Furthermore, when making a call from the external telephone 3, by hooking the external telephone 3 off hook,
The control unit 93 turns on the relay control signal S30 while keeping the relay control signal S10 in the off state, that is, keeping the relays R11 and R12 in the state where the telephone line 1 is disconnected from the modem modulation / demodulation unit 92, and the relays R31 and R32. To switch the external telephone 3 to the telephone line 1. As a result, a call can be made from the external telephone 3.

[0019]

The conventional modem device 9 including the internal memory 94 and the internal exchange section 91 described above.
0 can receive the data from the other party's modem and the FAX data from the other party in the internal memory 94 as described above.
The internal exchange section 91 is configured by the relays R11 to R32.
Since either the modem modulation / demodulation unit 92 or the external FAX device 2 or the external telephone 3 is connected to the telephone line 1, the data stored in the internal memory 94 can be stored in the internal memory 94 in order to print out the data. The data thus obtained must be taken into the personal computer 4 and printed out by the printer 5 connected to the personal computer 4,
The operation of printing out the data stored in the internal memory 94 is troublesome, and the FAX data from the external FAX apparatus 2 is sent to the telephone line 1 at a designated date and time without immediately being sent to the telephone line 1, for example. Therefore, it cannot be temporarily stored in the internal memory 94.

Therefore, according to the present invention, the data stored in the internal memory of the modem device can be easily printed out by the external FAX device, and the original data read by the external FAX device can be stored in the internal memory of the modem device. It is designed to be easily imported.

[0021]

According to the present invention, there is provided a modem device having an internal memory capable of accumulating transmission / reception data, and an internal switching part capable of selectively connecting a modem modulating / demodulating part and an external FAX device to one telephone line. In the above, in the internal exchange section, the modem modulation / demodulation section is connected to the external FAX.
Switching means is provided for connecting to the device.

In the modem device of the present invention configured as described above, simply by the operation in the modem device, including the operation of switching the switching means to the state in which the modem modulation / demodulation unit is connected to the external FAX device, Data stored in the internal memory of the modem device can be transferred to an external FAX.
It can be printed out on the device.

Further, it is desired to easily read by the operation in the modem device including the operation of switching the above-mentioned switching means to the state in which the modem modulation / demodulation unit is connected to the external FAX device, and the document setting and transmission operation in the external FAX device. The original data can be taken into the internal memory of the modem device.

[0024]

1 shows an embodiment of a modem device of the present invention. The modem device of this embodiment as a whole has an internal exchange unit 10, a modem modulation / demodulation unit 20, a connection control unit 30, a system control unit 40, and an R as an internal memory.
AM 50, operation input unit 60, display unit 70, driver 81 for connecting to a personal computer, and interface circuit 8
2, and a power supply unit omitted in the drawing.

The internal exchange section 10 selectively connects the telephone line 1 to the modem modulation / demodulation section 20 or the external FAX apparatus 2 or the external telephone 3 as shown in FIGS. 20 can be connected to the external FAX machine 2.

The connection control unit 30 has a CPU and its C
A ROM 31 in which a program to be executed by the CPU is written, and a RAM 32 that operates as a work area of the CPU are connected to the PU and receive a detection output from an incoming call detection circuit 11 of the internal exchange section 10 to be described later, The above connection in the internal exchange unit 10 is controlled via the system control unit 40. The CPU of the connection control unit 30 and the incoming call detection port are integrated with the modem modulation / demodulation unit 20 as a modem IC into an integrated circuit.

The system controller 40 controls the entire modem device, and includes a CPU 41 and a gate array control circuit 4.
2, a ROM 43 in which a program to be executed by the CPU 41 is written, and a memory 44 for clock generation. The RAM 50 as an internal memory partially operates as a work area for the CPU 41.

From the CPU 41, via the address bus 46, the gate array control circuit 42, the ROM 4
3, memory 44, and RAM 50 are addressed and C
Data is transferred between the PU 41, the gate array control circuit 42, the memory 44, the RAM 50, and the data bus 47, and the data from the ROM 43 is taken out to the data bus 47. Further, data is taken in from the CPU 41 to the gate array control circuit 42, and at the same time, a control signal is sent from the gate array control circuit 42 to the control bus 48.

The modem modulation / demodulation unit 20 is connected to the gate array control circuit 42 of the system control unit 40. Further, relay control signals S10 to S40, which will be described later, for controlling the above-mentioned connection in the internal exchange section 10 are supplied from the gate array control circuit 42 to the internal exchange section 10, and the off-hook detection output Fo from the internal exchange section 10 which will be described later. , To and the loop detection output Ld are controlled by the gate array control circuit 42.
Is supplied to. Further, as will be described later, the gate array control circuit 42 instructs the call signal generation circuit 14 of the internal exchange section 10 to generate and stop the call signal.

The operation input section 60 includes various keys (buttons).
And a DIP switch for mode switching and various settings of the modem device. In this embodiment, in particular, the data stored in the RAM 50 as an internal memory is printed out by the external FAX device 2 or the external FAX device 2 is used. Keys 61 and 62 are provided for fetching data from RAM into RAM 50.

In this embodiment, the keys 61 and 62 are of a slide switch type, and when both the keys 61 and 62 are slid to the left, the modem device is set to a memory data FAX print mode which will be described later. When both 62 are slid to the right, the modem device is set to the FAX reading memory reception mode described later.

The operation input information from the operation input section 60 is supplied to the gate array control circuit 42. The display unit 70 is
It has a display element such as an LED (light emitting diode) and displays the mode and setting status of the modem device according to the display information from the gate array control circuit 42.

FIGS. 2 and 3 show an example of the internal exchange section 10, in which the telephone line 1 is selectively used for either the modem modulation / demodulation section 20, the external FAX apparatus 2 or the external telephone 3. Relays R11, R1 for connecting to
2. Relays R21, R22 for connecting the external FAX device 2 to the telephone line 1 or disconnecting it from the telephone line 1, and relays R31 for connecting the external telephone 3 to the telephone line 1 or disconnecting it from the telephone line 1. In addition to R32, relays R41 and R42 for connecting the modem modulation / demodulation unit 20 to any of the telephone line 1, the external FAX device 2, and the external telephone 3 are provided.

Relays R11, R12, R21, R22,
R31, R32 and R41, R42 are respectively relay control signals S from the gate array control circuit 42.
It is switched by 10, S20, S30 and S40.

However, in the standby state of the modem device, the relay control signals S10, S20, S30 and S4 are used.
0 is turned off, as shown in FIG.
The relays R11 and R12 connect the telephone line 1 to the modem modulation / demodulation unit 2
0, the relays R21, R22 disconnect the external FAX machine 2 from the telephone line 1, and the relays R31, R32
Disconnects external telephone 3 from telephone line 1 and relay R4
1, R42 are switched so as to disconnect the modem modulation / demodulation unit 20 from the external FAX device 2 and the external telephone 3.

The incoming contact detection circuit 11 is provided on the movable contact side of the relay R12, the off-hook detection circuit 12 is provided on the movable contact side of the relay R22, and the off-hook detection circuit 13 is provided on the movable contact side of the relay R32. As described above, the detection output of the incoming call detection circuit 11 is transmitted to the connection control unit 30,
The detection outputs Fo and To of the off-hook detection circuits 12 and 13 are supplied to the gate array control circuit 42, respectively.

Further, in the internal exchange section 10, in response to an instruction from the gate array control circuit 42 as described above, a call signal is sent to each of the terminal to which the external FAX apparatus 2 is connected and the terminal to which the external telephone 3 is connected. A call signal generation circuit 14 for supplying the signal is provided.

Further, the relays R21 and R22 are external FA
When the X device 2 and the relays R31 and R32 are switched so as to disconnect the external telephone 3 from the telephone line 1, the external FAX device 2 and the external telephone via the loop detection circuit 17 from the power supply circuit 16. Three
, A DC current is supplied to each of them, and the detection output Ld for loop formation from the loop detection circuit 17 is
It is supplied to the gate array control circuit 42 as described above.

The above-mentioned modem device is capable of automatically switching and receiving data from the other party's modem or a normal FAX or telephone from the other party. Switch to automatic reception mode.

In this case, if there is an incoming call from the telephone line 1,
The incoming call detection circuit 11 detects the incoming call and notifies the connection control unit 30 of the incoming call. When the incoming call is data from the other modem, the gate array control circuit 42 of the system control unit 40 turns on the relay control signal S10 to connect the relays R11 and R12 to the telephone line 1 to the modem modulation / demodulation unit 20. Switch to the connected state, which allows data from the other modem to be stored in the internal memory as R
Stored in AM50.

Even when the incoming call is a normal FAX, and the modem device is set to the FAX memory reception mode in advance, the gate array control circuit 42 turns on the relay control signal S10 to turn on the relay R11. , R
12 is switched to a state in which the telephone line 1 is connected to the modem modulation / demodulation unit 20, whereby the FAX data from the other party is stored in the RAM 50.

The data stored in the RAM 50 can be later taken into a personal computer connected to the interface circuit 82 and printed out by a printer connected to the personal computer.
It can be printed out by the AX device 2.

When the incoming call is a normal FAX,
Further, when the modem device is not set to the FAX memory reception mode in advance, the gate array control circuit 42
Means that the relay control signal S10 remains off, that is, the relays R11 and R12 connect the telephone line 1 to the modem modulation / demodulation unit 2
In the state of being separated from 0, the relay control signal S20 is turned on, and the relays R21 and R22 are switched to the state of connecting the external FAX apparatus 2 to the telephone line 1. As a result, the external FAX apparatus 2 receives the FAX data from the other party and prints it out.

Further, when the incoming call is an ordinary telephone call, the gate array control circuit 42 causes the relay control signal S1.
0 is in an off state, that is, the relays R11 and R12 are in a state in which the telephone line 1 is separated from the modem modulation / demodulation unit 20, the relay control signal S30 is turned on, and the relays R31 and R32 are connected to the external telephone 3 to the telephone line 1. Switch to the state of connecting to. This allows the external telephone 3 to talk with the other party.

Further, in the above modem device, the keys 61 and 62 in the operation input section 60 are both slid to the left side so that the modem device can store the memory data FAX.
In the print mode, the data stored in the RAM 50 serving as the internal memory as described above is printed out by the external FAX apparatus 2 by the memory data FAX print routine 100 shown in FIG. 4 performed by the system control unit 40.

That is, as shown in FIG. 4, the memory data FAX print routine 100 starts at step 101, and then at step 102, it is confirmed that the memory data FAX print mode is set by operating the keys 61 and 62. To do.

Next, the system controller 40 proceeds to step 1
At 03, the call signal generation circuit 14 is instructed to generate a call signal. As a result, a call signal is supplied from the call signal generation circuit 14 to the external FAX apparatus 2, and the external FAX apparatus 2 automatically receives the call and goes off hook.

When the external FAX apparatus 2 goes off-hook, it is detected by the off-hook detection circuit 12, and the power supply circuit 16 forms a DC loop with respect to the external FAX apparatus 2, which is detected by the loop detection circuit 1.
7 is detected.

Next, the system controller 40 proceeds to step 1
04, the detection output Fo of the off-hook detection circuit 12
When the off-hook and the loop formation of the external FAX device 2 are confirmed by the detection output Ld of the loop detection circuit 17 and the loop detection circuit 17, the process proceeds to step 105, and the call signal generation circuit 1
Instruct 4 to stop the calling signal. As a result, the supply of the calling signal from the calling signal generation circuit 14 to the external FAX apparatus 2 is stopped.

Next, the system controller 40 proceeds to step 1
At 06, the relay control signals S30 and S40 are turned on, and as shown in FIG.
2 is switched to a state in which the external telephone 3 is connected to the telephone line 1, and relays R41 and R42 are switched to a state in which the modem modulation / demodulation unit 20 is disconnected from the telephone line 1. As a result, as shown in FIG. 3, the external FAX apparatus 2 is connected to the modem modulation / demodulation unit 20, and the external telephone 3 is connected to the telephone line 1.

Next, the system controller 40 proceeds to step 1
At 07, the data accumulated in the RAM 50 as the internal memory is sent to the external FAX apparatus 2 via the modem modulation / demodulation unit 20 by the FAX protocol. As a result, the external FAX apparatus 2 receives the sent data and prints it out by the printer section.

When the external FAX apparatus 2 is on-hook after the transmission of the data to the external FAX apparatus 2 is completed, it is detected by the off-hook detection circuit 12. Then, when the system control unit 40 confirms the on-hook of the external FAX device 2 by the detection output Fo of the off-hook detection circuit 12 in step 108, the system control unit 40 proceeds to step 109 to turn off the relay control signals S30 and S40, The internal exchange section 10 is returned to the standby state shown in FIG.

Thus, according to the above modem device,
The RAM 5 as the internal memory of the modem device can be easily operated only by operating the operation input unit 60 of the modem device.
The data stored in 0 can be printed out by the external FAX apparatus 2.

In this case, when the data stored in the RAM 50 is being sent to the external FAX device 2, the modem modulation / demodulation unit 20 and the external FAX device 2 are completely disconnected from the telephone line 1, and the external telephone 3 is connected to the telephone line 1. Therefore, the external telephone 3 can be used freely.

Further, in the above modem device, by sliding both keys 61 and 62 to the right in the operation input section 60, the modem device is set to the FAX reading memory reception mode, and the original FAX device 2 sets and sends the original. Combined with operation, system control unit 40
FAX reading memory reception routine 2 shown in FIG.
00, the data of the original read by the external FAX apparatus 2 is taken into the RAM 50 as the internal memory of the modem apparatus.

That is, as shown in FIG. 5, the fax read memory reception routine 200 starts at step 201, and first at step 202, it is confirmed that the fax read memory receive mode is set by operating the keys 61 and 62. To do.

When the operator sets a document to be read on the external FAX apparatus 2 and operates the transmission key of the external FAX apparatus 2, the external FAX apparatus 2 goes off-hook and is detected by the off-hook detection circuit 12.

Next, the system controller 40 proceeds to step 2
03, the detection output Fo of the off-hook detection circuit 12
Confirms that the external FAX machine 2 is off-hook,
Proceeding to step 204, the relay control signals S30 and S40 are turned on, and as shown in FIG.
31 and R32 are switched to a state in which the external telephone 3 is connected to the telephone line 1, and relays R41 and R42 are switched to a state in which the modem modulation / demodulation unit 20 is disconnected from the telephone line 1. As a result, as shown in FIG. 3, the external FAX device 2 is connected to the modem modulation / demodulation unit 20, and the external telephone 3
Is connected to the telephone line 1.

Next, the system controller 40 proceeds to step 2
In 05, data from the external FAX machine 2 is
It is received via the modem modulation / demodulation unit 20 according to the X protocol and stored in the RAM 50 as an internal memory.

When the external FAX apparatus 2 is on-hook after the transmission of data from the external FAX apparatus 2 is completed, the off-hook detection circuit 12 detects it. Then, after the reception of the data from the external FAX apparatus 2 is completed, the system control unit 40 determines in step 206 that the off-hook detection circuit 1
When the on-hook of the external FAX apparatus 2 is confirmed by the detection output Fo of No. 2, the process proceeds to step 207, the relay control signals S30 and S40 are turned off, and the internal exchange section 10 is returned to the standby state shown in FIG.

Thus, according to the above modem device,
Operation of the operation input unit 60 of the modem device and external FA
The data of the document to be read can be easily loaded into the RAM 50 as the internal memory of the modem device by the document setting and transmission operation in the X device 2.

Also in this case, when the data from the external FAX apparatus 2 is received by the RAM 50, the external FAX apparatus 2 and the modem modulation / demodulation unit 20 are completely disconnected from the telephone line 1, and the external telephone 3 is connected to the telephone line 1. Since the connection is established, the external telephone 3 can be used freely.

Further, in the above modem device, by sliding the key 61 to the right and the key 62 to the left in the operation input section 60, the modem device is set to the FAX reading personal computer reception mode,
The data of the document to be read can be directly taken into the personal computer without being received in the RAM 50 as the internal memory of the modem device as described above.

In the above modem device, when the data stored in the RAM 50 as the internal memory or the data from the personal computer is transmitted to the telephone line 1 by FAX transmission or the like, the switching operation is performed by the operation input unit 60. As a result, the relay control signal S40 remains in the off state, that is, the relays R41 and R42 remain in the state where the modem modulation / demodulation unit 20 is connected to the telephone line 1. 1 is connected to the modem modulation / demodulation unit 20. As a result, the data stored in the RAM 50 or the data from the personal computer can be transmitted to the telephone line 1.

When the external FAX apparatus 2 transmits by FAX, the external FAX apparatus 2 is off-hooked by a transmission operation on the external FAX apparatus 2, so that the system control unit 40 of the modem apparatus outputs the relay control signal S10. In the off state, that is, the relays R11 and R12 remain in the state where the telephone line 1 is disconnected from the modem modulation / demodulation unit 20,
The relay control signal S20 is turned on, and the relay R2
1, R22 is switched to a state in which the external FAX device 2 is connected to the telephone line 1. As a result, the FAX data from the external FAX device 2 is transmitted to the telephone line 1.

When making a call from the external telephone 3, the external telephone 3 is hooked off,
The system control unit 40 of the modem device uses the relay control signal S
10 remains in the off state, that is, relays R11 and R12
Keeps the telephone line 1 disconnected from the modem modulation / demodulation unit 20 and turns on the relay control signal S30 to switch the relays R31 and R32 to the state in which the external telephone 3 is connected to the telephone line 1. As a result, a call can be made from the external telephone 3.

In the above embodiment, the internal switching unit 10 of the modem device is connected to the telephone line 1 of one line by the modem modulation / demodulation unit 2.
0, the external FAX device 2 and the external telephone 3 can be selectively connected, but the external telephone 3 may not be connected to the telephone line 1 of the one line. That is, the modem device does not necessarily need to be able to connect to an external telephone on the same telephone line.

[0068]

According to the present invention, as described above, the data stored in the internal memory of the modem device can be transferred to the external FAX.
The data can be easily printed out by the device, and the data of the original read by the external FAX device can be easily taken into the internal memory of the modem device.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a modem device of the present invention.

FIG. 2 is a connection diagram showing a standby state of an internal exchange section of the modem device of FIG.

FIG. 3 is a connection diagram showing a state in a memory data FAX print mode and a FAX read memory reception mode of an internal exchange unit of the modem device of FIG.

FIG. 4 is a flowchart showing a memory data FAX printing routine performed by a system control unit of the modem device of FIG.

5 is an FA performed by the system control unit of the modem device of FIG.
7 is a flowchart showing an X reading memory reception routine.

FIG. 6 is a connection diagram showing an example of a communication system using a modem device having an internal memory and an internal exchange unit.

FIG. 7 is a connection diagram showing an internal exchange unit of a conventional modem device including an internal memory and an internal exchange unit.

[Explanation of symbols]

 10 internal exchange section R41, R42 relay (switching means) 20 modem modulation / demodulation section 30 connection control section 40 system control section 50 RAM (internal memory) 60 operation input section 61, 62 keys (operation means) 1 telephone line 2 external FAX machine ( External fax machine) 3 External telephone

Claims (3)

[Claims] 1. A modem apparatus comprising an internal memory capable of storing transmission / reception data, and an internal switching section capable of selectively connecting a modem modulation / demodulation section and an external facsimile apparatus to one telephone line, wherein the internal switching section comprises: A modem device provided with switching means for connecting the modem modulation / demodulation unit to the external facsimile device. 2. The modem device according to claim 1, further comprising an operating means for printing out the data stored in the internal memory by the external facsimile device. 3. The modem device according to claim 1, further comprising an operating means for loading the data of the original read by the external facsimile device into the internal memory.