JP3183263B2 - Facsimile machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a facsimile apparatus having a function of receiving a calling telephone number notification service.

[0002]

2. Description of the Related Art In recent years, a telephone number of a caller has been changed to, for example, NT.
A transmission telephone number notification service for notifying a communication terminal device such as a telephone or a facsimile device on the receiving side from an exchange of a telecommunications carrier such as T has been put to practical use. In this calling telephone number notification service, a communication procedure is performed between the exchange and the communication terminal device on the receiving side as follows. That is, when a dial call is made on the calling side, first, the polarity of the current flowing on the telephone line in the exchange is reversed. Next, a 16 Hz ID reception terminal activation signal is transmitted from the exchange to the communication terminal device. This ID receiving terminal activation signal is a signal specially prepared for the calling telephone number notification service, and is turned on intermittently every 0.5 seconds with an interval of 0.5 seconds off time. 16 Hz signal having a make rate of 50%.

[0003] The communication terminal device on the receiving side receives an ID from the exchange.
When the receiving terminal activation signal is detected, the telephone line is closed to form a DC loop with the exchange. When the formation of this DC loop is detected by the exchange as a primary response signal, the telephone number data from the exchange is transmitted to the communication terminal device by the FSK.
(Frequency shift keying) signal. When receiving the telephone number data from the exchange, the communication terminal device once releases the telephone line to release the DC loop between the communication terminal and the exchange. When the opening of the DC loop is detected by the exchange as a reception completion signal, a general 16-Hz calling signal is transmitted from the exchange to the communication terminal device. This ringing signal is a 16 Hz signal having a make-up rate of about 66% intermittently transmitted at intervals of one second at intervals of two seconds off time. Are different. The exchange transmits a ringback tone to the calling side while transmitting the call signal to the communication terminal device.

When the communication terminal is a facsimile, the facsimile detects a call signal from the exchange and closes the telephone line again to form a DC loop with the exchange. On the other hand, when the communication terminal is a telephone, the telephone is ringed by a calling signal from the exchange. Then, when the user off-hooks the handset of the exchange based on this ringing, the telephone line is closed and a DC loop is formed with the exchange. When the formation of this DC loop is detected by the exchange as a secondary response signal, after the polarity of the inverted telephone line is restored at the exchange, the facsimile is transmitted between the originating and terminating communication terminal devices. Communication or telephone conversation is performed.

As described above, in this calling telephone number notifying service, the calling side device is called by the ID receiving terminal activation signal before calling by the general calling signal, and the calling side phone number is notified to the called side device. I have to. Therefore, in the receiving side device, before starting communication with the calling side,
Not only can the calling party's telephone number be recognized and displayed on the display unit, but if the calling party is a party who has refused communication, it will not respond to a call with a general call signal from the exchange. Response is possible.

[0006]

However, in a communication terminal device such as a facsimile device having a function of receiving a calling telephone number notification service and connected to another external telephone, the calling telephone number information of the calling telephone number notification service is provided. If the external telephone goes off-hook while receiving this data, there is a problem that noise may be generated on the telephone line and the data of the outgoing telephone number information may not be accurately received.

In a communication terminal device such as a facsimile machine to which a plurality of other external telephones are connected, one external telephone having a function of receiving a transmission telephone number notification service receives data of transmission telephone number information. sometimes,
When another external telephone goes off-hook, noise occurs on the telephone line, as described above, and there is a problem that the data of the outgoing telephone number information may not be accurately received.

It is an object of the present invention to provide a facsimile apparatus capable of connecting to an external communication terminal and capable of performing facsimile communication after receiving a telephone number of a calling telephone number notification service at the external communication terminal. It is in.

[0009]

According to the present invention, there is provided a facsimile apparatus, comprising: receiving means for receiving, via a communication line, transmission telephone number information of a transmission telephone number notification service; and communication for performing facsimile communication via the communication line. Means for selectively switching whether or not to connect an external communication terminal, which receives the calling telephone number information of the calling telephone number notification service via the communication line, to or from the communication line. Setting means for setting whether the outgoing telephone number information is received by the facsimile apparatus or received by the external communication terminal, and the outgoing telephone number information is received by the external communication terminal by the setting means Is set to connect the external communication terminal to the communication line by the connection means, and After receiving with the external communication terminal,
While the communication means controls facsimile communication, the setting means sets the facsimile apparatus to receive the outgoing telephone number information, and the connecting means connects the facsimile apparatus to the communication line. And control means for controlling the communication means to perform facsimile communication after receiving the calling telephone number information by the facsimile apparatus.

[0010]

[0011]

[0012]

Embodiments of the present invention will be described below with reference to the drawings.

<Embodiment> FIG. 1 is a block diagram showing a configuration of a facsimile apparatus 20 having an outgoing telephone number notification service receiving function according to an embodiment of the present invention. The facsimile apparatus 20 of this embodiment has a function of receiving a calling telephone number notification service, and the first and second external telephone terminals 11 and 12 are connected to the external telephone terminal port P, respectively.
1, P2 and the public telephone line L is outside line port L
A facsimile machine connected to P, and (a) a fax modem 10 for receiving and demodulating the outgoing telephone number information of the outgoing telephone number notification service via the public telephone line L;
(B) a relay RL1 for selectively connecting the first external telephone terminal 11 to either the public telephone line L or the current supply circuit 27, and (c) a second external telephone terminal 12 for connecting a public telephone. A relay RL2 selectively connected to either the line L or the current supply circuit 27, and (d) the fax modem 10
When the telephone number information has been received, the first and second external telephone terminals 11 and 12 are disconnected from the public telephone line L and connected to the current supply circuit 27 together. And a main controller 1 for controlling the relays RL1 and RL2.

Referring to FIG. 1, a facsimile machine 20 comprises:
It has a facsimile communication function of the conventional G3 system and the like, and also has a function of receiving a calling telephone number notification service. The main control unit 1 is specifically composed of a CPU,
In addition to being connected to the following hardware units via a bus 13 and controlling them and the relays RL1 and RL2,
It executes various software functions to be described later. The image reading unit 2 reads an original with a scanner using a CCD or the like, and outputs dot image data converted to binary black and white. The image recording unit 3 is a printer device of an electrophotographic system or the like, and prints out and records image data received from another facsimile device by facsimile communication as a hard copy. The display unit 4 is a liquid crystal display (LC)
D) or a display device such as a CRT display, which displays the operation state of the facsimile machine 20, and displays image data of a document to be transmitted and received image data.

The operation unit 5 includes character keys, dial numeric keys, and dial keys necessary for operating the facsimile machine 20.
It has speed dial keys, one-touch dial keys, and various function keys. In addition, by making the above-mentioned display unit 4 a touch panel type, this operation unit 5
A part or all of the various keys may be substituted.

The ROM 6 stores in advance various software programs necessary for the operation of the facsimile machine 20 and executed by the main control unit 1, wherein the programs include at least the setting process shown in FIG. 3 includes an incoming call processing program. The RAM 7 is composed of an SRAM, a flash memory, or the like, and is used as a working area of the main control unit 1 and stores temporary data generated when a program is executed. When a flash memory is used as the RAM 7, even if the power is cut off due to a power failure, a movement of the apparatus, or the like, the contents of the data are not lost. The image memory 8 is composed of a DRAM or the like, and stores image data to be transmitted or received image data. Note that the RAM 7 and the image memory 8 may be constituted by a hard disk memory.

The fax modem 10 is connected to a public telephone line L
, And has the function of a normal fax modem for facsimile communication. The modem receives and demodulates the data of the outgoing telephone number information received as the FSK signal, and outputs it to the main control unit 1.

Next, the NCU (network control circuit:
The configuration and operation of the Network Control Unit) and its peripheral circuits will be described. In FIG. 1, a public telephone line L
Is connected to an external line port LP of the facsimile apparatus 20, and the external line port LP is a noise filter NF1 for removing noise generated in a public telephone network including the public telephone line L.
Are connected to the on-side contacts of relays RL1 and RL2, while four bridge-connected diodes D1 and
Bridge diode circuit BD composed of D2, D3 and D4
And an overvoltage protection circuit 21 to be connected to one winding of the transformer T1. The other winding of the transformer T1 has its middle point grounded, and its two ends connected to the fax modem 10 via low-pass filters (LPF) 23 and 24 for removing high-frequency noise, and one end of which is connected to the selection signal. Is D
It is connected to a DTMF signal detection circuit 22 that detects a TMF signal.

The device side of the noise filter NF1 is:
Bridge diode circuit BD, CR series circuit C1, R
1, a diode D5 and a resistor R2 are connected to a polarity inverting circuit 25 via a circuit including the CR series circuits C1 and R1, and are connected to a dial pulse sending circuit 26 via a circuit including only the CR series circuits C1 and R1. Further, the noise filter NF1
Is connected to the on-side contacts of the relays RL1 and RL2 and to the 16 Hz signal detection circuit 28.

The first external telephone terminal 11 is connected via an external telephone terminal port P1 to a noise filter NF2 for removing external noise, and the device side of the noise filter NF2 is relayed via an off-hook detection circuit 31. Connected to the common contact of RL1. Further, the second external telephone terminal 12 is connected via an external telephone terminal port P2 to a noise filter NF3 for removing external noise.
The device side of F3 is connected to a common contact of relay RL2 via an off-hook detection circuit 32. Furthermore, relay RL
The off-side contacts of 1 and RL2 are connected to the current supply circuit 27. Here, a DTMF signal detection circuit 22, a polarity inversion circuit 25, a dial pulse transmission circuit 26, a current supply circuit 27, a 16 Hz signal detection circuit, an off-hook detection circuit 3
1, 32 and the control terminals of the relays RL1 and RL2 are connected to the main control unit 1 and controlled by the main control unit 1, and the signals detected by the circuits 22, 25 and 28 are output to the main control unit 1. Is done.

When the relay RL1 is switched on by the main controller 1, the first external telephone terminal 11 is connected to the public telephone line L via the relay RL1, while the relay RL1 is connected to the main controller 1. Is switched off, the first external telephone terminal 11 is connected to the current supply circuit 27 via the relay RL1.
Is supplied from the current supply circuit 27 to the first external telephone terminal 11. When the relay RL2 is switched on by the main control unit 1, the second external telephone terminal 12 is connected to the public telephone line L via the relay RL2, while the relay RL2 is controlled by the main control unit 1. When switched to the off side, the second external telephone terminal 12
2, the power supply current of, for example, −48 V is supplied from the current supply circuit 27 to the second external telephone terminal 12.

Here, the polarity reversing circuit 25 performs closing and opening operations such as a DC loop of the analog public telephone line L and, if necessary, a primary response signal and a secondary response signal in the calling telephone number notification service. A response signal can be transmitted. The dial pulse sending circuit 26 has an automatic dial function and sends out a dial pulse as a selection signal. The 16 Hz signal detection circuit 28 detects an ID receiving terminal start signal and a normal telephone call signal in the calling telephone number notification service. Further, off-hook detection circuit 31 detects an off-hook of first external telephone terminal 11 and outputs a detection signal to main control unit 1. The off-hook detection circuit 32 detects off-hook of the second external telephone terminal 12 and outputs a detection signal to the main control unit 1.

It should be noted that the above-mentioned NCU circuit is connected to a predetermined terminal adapter and a DSU (Digital Subscriber Line Termination Unit).
rvice Unit), it may be connected to a digital line of the baseband transmission system (for example, an ISDN line).

The facsimile apparatus 20 of the present embodiment configured as described above has a function of receiving a calling telephone number notification service in addition to a normal facsimile communication function of the G3 system or the like. In the facsimile communication function, the dot image data read by the image reading unit 2 is MH, MR, M which is defined in the facsimile communication standard.
After being encoded by software in accordance with an encoding method such as MR and then transmitted to the other party's facsimile apparatus, the encoded data received from the other party's facsimile apparatus is also decoded into image data by software and the The data is output from the recording unit 3 as a hard copy.
The image memory 8 stores the image data as needed, and outputs the stored image data as needed.

FIG. 2 shows a facsimile apparatus 2 of the present embodiment.
5 is a flowchart showing a setting process executed by a main control unit 1 of the first embodiment. In FIG. 2, the setting circuit includes at least the processing of the following steps S1 and S2. First, the following items are displayed in step S1. "Enter the number of the device that receives the caller ID information. 1: Facsimile machine main body 2: First external telephone terminal 3: Second external telephone terminal" Next, in step S2, the setting parameters AN
The number data input using the numeric keypad of the operation unit 5 is input and set. In this setting process, any one of the above three devices can be set as a device for receiving the data of the outgoing telephone number information.

FIG. 3 is a flow chart showing the incoming call processing executed by the main control unit 1 of the facsimile apparatus of FIG. In FIG. 3, when the polarity inversion of the public telephone line L is detected, that is, when an incoming call is detected, the incoming call process is executed. First, in step S11, it is determined whether an ID receiving terminal activation signal is detected, It waits until it is detected, and when it is detected, in step S12, the setting parameter AN previously set in the previous setting process.
And branches as follows. If AN = 1, both relays RL1 and RL2 for external telephone terminals 11 and 12 are switched to off contacts in step S12A.
Next, in step S13, a DC loop is formed to send a primary response signal to the exchange via the public telephone line L. In step S14, it is determined whether the data of the outgoing telephone number information is demodulated and detected by the fax modem 10. It waits until it is detected, and when it is detected,
At step S15, the DC loop is cut off to transmit a reception completion signal, and the process proceeds to step S18.

When AN = 2 in step S12, the relay RL1 for the first external telephone terminal 11 is selectively switched to the ON-side contact in step S16, and the relay RL1 for the second external telephone terminal 12 is switched. By selectively switching RL2 to the off-side contact, the first external telephone terminal 11 is connected to the public telephone line L, and the first external telephone terminal 11 is transmitted to the first external telephone terminal 11 in the calling telephone number notification service. After performing processing including transmission of the primary response signal, detection of reception of the data of the calling telephone number information, and transmission of the reception completion signal, the process proceeds to step S18. Further, in step S12, AN =
In the case of 3, in step S17, the relay RL2 for the second external telephone terminal 12 is selectively switched to the on-side contact, and the relay RL1 for the first external telephone terminal 11 is selectively switched to the off-side contact. By switching, the second external telephone terminal 12 is connected to the public telephone line L, the primary response signal is transmitted to the second external telephone terminal 12 in the outgoing telephone number notification service, and the outgoing telephone number is transmitted. After performing processing including detection of reception of information data and transmission of a reception completion signal, the process proceeds to step S18.

In step S18, it is determined whether or not a normal telephone call signal has been detected. The system waits until the signal is detected. When the signal is detected, in step S19, both the relays RL1 and RL2 for the external telephone terminals 11 and 12 are turned on. After that, in step S20, facsimile communication or telephone communication by the facsimile device 20, or
Telephone communication and the like by the external telephone terminals 11 and 12 are executed,
When the communication ends, the incoming call processing ends.

As described above, according to the present embodiment, when AN = 1 is set, the facsimile modem 10 of the facsimile machine 20, which is the main unit, transmits the primary response signal of the outgoing telephone number notification service. Processing including transmission, detection of reception of data of the calling telephone number information, and transmission of a reception completion signal is executed. At this time, the relays RL1, RL
2 is off, the noise is not superimposed on the public telephone line L even when the first or second external telephone terminal 11, 12 is off-hook. Therefore, the fax modem 10 can receive, demodulate and detect the data of the outgoing telephone number information of the outgoing telephone number notification service without error.

When AN = 2, only the relay RL1 is switched to the ON side, and the first external telephone terminal 11 transmits the primary response signal in the transmission telephone number notification service and transmits the transmission telephone number. Information data reception detection,
A process including transmission of a reception completion signal is executed. At this time,
Since the relay RL2 is turned off, the noise is not superimposed on the public telephone line L even when the second external telephone terminal 12 goes off-hook. Therefore, the first external telephone terminal 11
Can reliably receive and demodulate the data of the outgoing telephone number information of the outgoing telephone number notification service and detect it.

Further, when AN = 3 is set,
Only the relay RL2 is switched to the ON side, and the second external telephone terminal 12 transmits the primary response signal in the transmission telephone number notification service, detects the reception of the transmission telephone number information data, and transmits the reception completion signal. Execute At this time, since the relay RL1 is turned off, the noise is not superimposed on the public telephone line L even if the first external telephone terminal 11 goes off-hook. Therefore, the second external telephone terminal 12 can receive, demodulate, and detect the data of the calling telephone number information of the calling telephone number notification service without error.

As described above, when the facsimile machine 20, which is the main unit, receives the data of the outgoing telephone number information, the relays RL1 and RL2 remain off, so that the first and second external Even if the telephone terminals 11 and 12 go off-hook, the facsimile apparatus 20 can reliably receive the data of the outgoing telephone number information without error. When the information data is received, the relay RL2 remains off, so that even if the second external telephone terminal 12 goes off-hook or the like, the first external telephone terminal 11 transmits the outgoing telephone number information. Data can be received without error.
Therefore, the user can go off-hook without being conscious of receiving the data of the outgoing telephone number information.

When the external telephone terminal, which is the external communication terminal, receives the data of the outgoing telephone number information,
As shown in FIG. 2, the setting is made using the numeric keypad of the operation unit 5 and the other external telephone terminal relay is kept off, so that even if the other external telephone terminal goes off-hook, The external telephone terminal set to receive the data of the calling telephone number information can receive the data without error. Therefore, the user of the other external telephone terminal can go off-hook without being conscious of receiving the data of the calling telephone number information.

<Modification> FIGS. 4 and 5 are flow charts showing the incoming call processing of a modification executed by the main controller 1 of the facsimile apparatus of FIG. The incoming call processing of this modification is different from the incoming call processing of FIG. 3 in the processing of steps S31 to S34 in FIG. Hereinafter, this difference will be described in detail. In step S16 of FIG. 5, the relay RL1 for the first external telephone terminal 11 is switched to the ON-side contact, and the relay R for the second external telephone terminal 12 is switched.
After switching L2 to the off-side contact, it is determined in step S31 whether or not the telephone terminal 12 has gone off-hook. If not, step S18 in FIG.
On the other hand, if the user goes off-hook, it is determined in step S32 whether or not the data of the outgoing telephone number information is being received, and the process waits until the reception is completed. Step S1 in FIG.
7, the relay RL2 for the second external telephone terminal 12 is switched to an on-side contact and the first external telephone terminal 1
After switching the first relay RL1 to the off-side contact, it is determined in step S33 whether or not the telephone terminal 11 has gone off-hook. If not, the process proceeds to step S18 in FIG. In S34, it is determined whether or not the data of the outgoing telephone number information is being received, and the process waits until the reception is completed.

As described above, in the modification, the contact of the relay RL1 or R2 is held while the data of the outgoing telephone number information is being received when the other external telephone terminal goes off-hook, and the other external telephone terminal Is not connected to the public telephone line L, so that even if the other external telephone terminal goes off-hook, one external telephone terminal can reliably receive the data of the outgoing telephone number information without error. it can.
Therefore, the user can go off-hook without being conscious of receiving the data of the outgoing telephone number information.

In the above embodiment, FIGS.
In the incoming call processing, after detecting the ID receiving terminal activation signal in step S11, the on / off of the relays RL1 and RL2 is controlled in accordance with the setting parameter AN in step S12, but the present invention is not limited to this. Step S12
A, S16 and S17 are executed before entering the incoming call processing (they may be executed immediately after the setting processing), and the ID receiving terminal activation signal is transmitted to the corresponding main unit or external device. A configuration may also be adopted in which a telephone terminal makes a ringing sound and receives the sound.

In the above embodiment, an example of the facsimile apparatus 20 has been described. However, the present invention is not limited to this. For example, a telephone, data, etc. connected to a public network such as a public telephone network or a public digital network. The present invention can be applied to a communication terminal device including a communication device and the like.

[0038]

As described above in detail, according to the facsimile apparatus of the present invention, the receiving means for receiving the calling telephone number information of the calling telephone number notification service via the communication line,
A facsimile apparatus having communication means for performing facsimile communication via the communication line, wherein an external communication terminal that receives caller telephone number information of a caller telephone number notification service via the communication line is connected to the communication line. Connection means for selectively switching whether or not to perform transmission, setting means for setting whether the transmission telephone number information is received by the facsimile apparatus or reception by the external communication terminal, and the transmission means by the setting means. When the telephone number information is set to be received by the external communication terminal, the external communication terminal is connected to the communication line by the connection means, and the outgoing telephone number information is transmitted to the external communication terminal. After receiving the call, the communication means controls the facsimile communication to be performed, while the setting means transfers the outgoing telephone number information to the file. When the facsimile apparatus is set to receive the call, the facsimile apparatus is connected to the communication line by the connection means, and the outgoing telephone number information is received by the facsimile apparatus, and then the facsimile communication is performed by the communication means. And control means for controlling so as to perform. Therefore, when the setting means is set to receive the outgoing telephone number information at the external communication terminal, the external communication terminal receives the telephone number of the outgoing telephone number notification service, and then the facsimile apparatus Facsimile communication can be performed.

[0039]

[0040]

[Brief description of the drawings]

FIG. 1 shows a facsimile apparatus 20 having an outgoing telephone number notification service receiving function according to an embodiment of the present invention.
FIG. 3 is a block diagram showing the configuration of FIG.

FIG. 2 is a flowchart showing a setting process executed by a main controller 1 of the facsimile machine of FIG.

FIG. 3 is a flowchart showing an incoming call process executed by a main control unit 1 of the facsimile machine of FIG.

FIG. 4 is a flowchart showing a first part of the incoming call processing of a modified example executed by the main control unit 1 of the facsimile apparatus of FIG. 1;

FIG. 5 is a flowchart showing a second part of the incoming call processing of the modification example which is executed by the main control unit 1 of the facsimile apparatus of FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Main control part, 4 ... Display part, 6 ... ROM, 7 ... RAM, 10 ... Fax modem, 11 ... NCU, 20 ... Facsimile apparatus, 27 ... Current supply circuit, 28 ... 16Hz signal detection circuit, 31, 32 ... Off-hook detection circuit, L: public telephone line, LP: external line port, P1, P2: external telephone terminal port, RL1, RL2: relay.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) H04M 1/00 H04M 11/00-11/10 H04M 1/26-1/57 H04N 1/32

Claims (1)

(57) [Claims] 1. A facsimile apparatus comprising: receiving means for receiving calling telephone number information of a calling telephone number notification service via a communication line; and communication means for performing facsimile communication via the communication line. A connection means for selectively switching whether or not to connect an external communication terminal for receiving the outgoing telephone number information of the notification service via the communication line to the communication line; and transmitting the outgoing telephone number information to the facsimile apparatus. Setting means for setting whether to receive or to receive at the external communication terminal; and when the setting means sets the outgoing telephone number information to be received at the external communication terminal, the connection is established. Means for connecting the external communication terminal to the communication line and receiving the calling telephone number information by the external communication terminal, While the facsimile apparatus is controlled to perform facsimile communication, while the setting means is set to receive the outgoing telephone number information by the facsimile apparatus, the connecting means connects the facsimile apparatus to the communication line. And a control means for controlling the communication means to perform facsimile communication after the transmission telephone number information is received by the facsimile apparatus.