JP3054257B2 - 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 machine, and more particularly to a facsimile machine connected to a call waiting service subscribed line and having a function of responding to an interrupt call during facsimile communication.

[0002]

2. Description of the Related Art Recently, facsimile devices, miniaturization, cost reduction, telephone function built has progressed, it has become possible also be used as a telephone also as a facsimile device connected to one telephone line For this reason, it has come to be used in ordinary households and small and medium-sized businesses. In such ordinary households and small and medium-sized businesses, for example, without connecting a new telephone line for a facsimile machine, an external telephone can be connected,
With phone functions with a built-in telephone facsimile devices have become widespread.

[0003]

However, in such a conventional facsimile apparatus with a telephone function,
When the telephone line of the installed user is a line subscribed to a call waiting service (interrupt call reception service during a call) performed by NTT, the following problems occur.

[0004] That is, a telephone subscribed to this service can confirm an interrupt call request from a telephone other than the telephone of the other party by a predetermined notification sound, and after confirming the notification sound, the user can hook the telephone. Although the caller can be put on hold to talk with the interrupting party, even if this interrupt call request is received during facsimile communication, the telephone function of the conventional facsimile machine Cannot be recognized, and the interruption partner is made to wait until the facsimile communication ends, which causes a problem in emergency response.

Accordingly, the present invention detects an interrupt call signal during facsimile communication, and thereafter detects the interrupt call signal.
Type of the other party's communication terminal (facsimile machine / telephone
Machine) and respond to interrupts in response to user instructions
It is an object of the present invention to provide a facsimile machine which supports call waiting service and shifts to communication control .

[0006]

According to the first aspect of the present invention,
Signal detecting means for detecting a call signal from the telephone line, and tone detection means for detecting a CNG signal for determining whether the partner communication terminal is a facsimile device, a call notification means for notifying the incoming to the user, the facsimile
Pseudo hooking that performs pseudo hooking operation of the device telephone
And grayed unit, and detects a call signal from the second partner communication terminal during communication of image information between the first partner communication terminal the
The on-hook operation is performed by the pseudo hooking means, and the call
Complementing the fine out signal in response, then, it is determined that by detecting the reception of a CNG signal, if the CNG signal has been detected as being the second partner communication terminal facsimile apparatus by the tone detecting means, the pseudo Off by hooking means
Control means for performing a hooking operation to release the connection with the second destination communication terminal, and when the CNG signal is not detected even after a lapse of a certain time, the user is notified of the incoming call by the incoming call notifying means; , Is provided. The invention according to claim 2 is characterized in that a response to a call signal from the second destination communication terminal during communication of image information with the first destination communication terminal is executed in response to a user instruction. . According to a third aspect of the present invention, there is provided a voice response means for transmitting a voice message for responding to a call signal from the second destination communication terminal. According to a fourth aspect of the present invention, an off-hook detecting means for detecting an off-hook operation in a telephone of the facsimile apparatus, a switching connection means for switching a telephone line to the telephone for connection, and a notification of an incoming call to the user by the incoming notification means. And control means for switching the telephone line to the telephone by the switching connection means when the off-hook detection means detects an off-hook by the telephone, and connecting the telephone line to the telephone.

[0007]

According to the first aspect of the present invention, when the signal detection means detects a call signal from the second communication terminal during the communication of the image information with the first communication terminal, the pseudo hooking means is provided.
Performs on-hook operation to supplement the call signal.
In response Te, then, to detect the reception of a CNG signal by the tone detecting means, if the CNG signal is detected is determined that the second partner communication terminal is a facsimile apparatus, wherein
Off hook operation by pseudo hooking means
While opening and releasing the connection with the destination communication terminal,
When the CNG signal is not detected even after the lapse of a certain time, the control means controls the user so that the user is notified of the incoming call by the incoming notification means. According to the second aspect of the present invention, the second communication device is communicating image information with the first destination communication terminal.
Control is performed such that a response to a call signal from the other party's communication terminal is executed in response to a user's instruction. According to the third aspect of the invention, when responding to the call signal from the second destination communication terminal, the voice response unit is controlled to transmit a voice message. In the invention according to claim 4, after the user is notified of the incoming call by the incoming call notifying means, when the off-hook detecting means detects off-hook by the telephone, the switching connection means switches the telephone line to the telephone and connects the telephone line. It is controlled by control means.

Therefore, an interrupt call during a call is
Phone connected to the telephone line subscribed to available services
Akushimiri device and notify the reliable user of the reception of the even interrupts calls even during facsimile communication via the telephone line can be promoted corresponding co
Control the interrupt timing according to the communication status.
Therefore, interruption of image information can be prevented as much as possible.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be specifically described below based on embodiments. FIGS. 1 to 4 show a facsimile apparatus according to an embodiment of the present invention. FIG. 1 is a block diagram of a facsimile apparatus 1. The facsimile apparatus 1 includes a CPU 2, a ROM 3, a RAM 4, a DCR 5, an port 6, a scanner 7, a plotter 8, a modem 9, a voice response circuit 10, an NCU 11, and an I / O. Port 12, buzzer 13 and power
It is composed of a talker 14 etc., CPU2, ROM3, R
AM4, DCR5, port 6, scanner 7, plotter 8, modem 9, voice response circuit 10, and I / O port 12
Are connected by a data bus 15.

CPU (Central Processing Unit) 2
Comprises a communication control means and a second detection means;
In accordance with the basic program of the facsimile machine 1 and the interrupt call detection communication processing program of the present invention, each unit is controlled to execute the sequence as the facsimile machine 1 and execute the interrupt call detection communication processing of the present invention. . ROM (Read Only Memory) 3
The basic program of the facsimile machine 1 and the interrupt call detection communication processing program of the present invention are stored.

A RAM (Random Access Memory) 4 is used for work and forms a memory area for storing various data. The DCR 5 encodes (encodes) the image data according to a predetermined encoding method, and decodes (decodes) the encoded image data. Oppo
The display unit 6 includes various operation keys such as a numeric keypad and a start key, and also includes a display (for example, a liquid crystal display). Various commands such as a transmission operation are input from the operation keys. The displayed instruction contents and various information notified to the operator from the facsimile apparatus are displayed. In particular, in the present embodiment, when an interrupt call is detected by the above-described interrupt call communication detection processing of the present invention, a message notifying the fact is displayed on the display. I do.

As the scanner 7, for example, a CCD (Ch
An image scanner using an "Arge Coupled Device" is used, and the scanner 7 scans a document and reads image information of the document. As the plotter 8, for example, a thermal recording device using a thermal element is used. The plotter 8 records an image directly on thermal recording paper or indirectly on ordinary recording paper via an ink sheet.

As shown in FIG. 2, the modem 9 includes a modulation / demodulation circuit 21, a tone transmission circuit 22, and a tone detection circuit 23. The modulation / demodulation circuit 21 performs modulation of a transmission signal and demodulation of a reception signal. The tone signal necessary for facsimile communication and telephone call is sent by the sending circuit 22, and the tone signal (interrupt call signal) from the line L is detected by the tone detecting circuit ( first detecting means ) 23.
Transfer to

The voice response circuit 10 stores voice data responding to an incoming call from the line L, and sends out voice data via the NCU 11 under the control of the CPU 2. NCU11
As shown in FIG. 1, comprises a hook detection circuit 25, a ringing detection circuit 26, a line switching relay RY1, a dial transmission relay RY2, and a telephone switching relay RY3 .

A hook detection circuit 25 detects an off-hook operation on the telephone 14 and outputs the detection signal to the I / O port 12.
Is transferred to the CPU 2 via. Ringing detection circuit 26
Detects the calling signal, such as 16 Hz signal received from the line L, and the detection signal through the I / O port 12 C
Transfer to PU2. Line switching relay RY1 is connected to CPU2.
The switching is controlled by
Switch between the telephone 14 and the facsimile side for connection.

The dial transmission relay RY2 is connected to the CPU2.
On / off control, and the phone number of the destination terminal
Turns on when sending a signal.Telephone switching relay RY3
Is controlled by the CPU 2 for switching.
ThanTelephone 14Power supply Vcc and connection to line L
U. I / O port 12 is between NCU 11 and data bus 15
Connected and output from the CPU 2 via the data bus 15.
Control signal S to the NCU 11 and output from the NCU 11.
Off-hook detection signal and ringing detection signal
The data is transferred to the CPU 2 via the tabus 15.

The sound of the buzzer 13 is controlled by the CPU 2 during interrupt call detection communication processing to be described later, and is sounded as necessary. The telephone 14 is externally connected to the NCU 11, and when the off-hook operation is detected by the hook detection circuit 25 in the NCU 11, the telephone 14 is connected to the line L and can communicate with the other party.

Next, the operation will be described. In the present embodiment, when an interrupt call signal received from the line L subscribed to the NTT call waiting service is detected during facsimile communication, a buzzer is sounded and displayed to notify the user of the interrupt call signal, and a hook operation is prompted. It is characterized in that it is determined whether the transmitted destination communication terminal is a telephone or a facsimile machine, and the communication procedure is changed according to the determined destination communication terminal. Hereinafter, the communication process upon detection of the interrupt call signal will be described with reference to the flowcharts shown in FIGS.

The facsimile apparatus 1 is in the initial state, as shown in FIG. 1, line switching relay RY1 is telephone
Connected to 14 side, dial sending relay RY2 off, telephone
It is assumed that the switching relay RY3 is connected to the line L. In this initial state, the transmission mode instruction at the port 6 and the detection of the ringing signal from the line L are checked (steps S1 and S2). If so, a message instructing the scanner 7 to set the transmission original is displayed on the display of the port 6 (step S3), and when the original is set, an input instruction such as a destination telephone number is displayed on the display. (Step S4). When the destination telephone number is input, the original image information read by the scanner 7 is stored (step S5), and the line switching relay RY is stored.
1 to the facsimile side and dial transmission relay RY
2 is turned on, and the telephone switching relay RY3 is switched to the power supply Vcc side (step S6).

Next, a call is made based on the input destination telephone number (step S7), and the response of the destination communication terminal is transmitted to the CCI.
Recommendation T.T. (International Telegraph and Telephone Advisory Committee) Check for timeout T1 time based on S30 (step S
8, S9). If no response is received during the T1 time from the destination communication terminal, the line switching relay RY1, the dial transmission relay RY2, and the telephone switching relay RY3 are returned to the initial state (step S10), and the system enters the redial standby state. The process moves to the end of the process (step S11). On the other hand, when a response from the destination communication terminal is received within the time T1, the transmission process of the stored image information is started and the detection of the interrupt call signal by the tone detection circuit 23 during communication is checked (step S12, S13).

When the communication is terminated without detecting the interrupt call signal, the line switching relay RY1, the dial transmission relay RY2 and the telephone switching relay RY3 are returned to the initial state (step S14), and this processing is terminated. If an interrupt call signal is detected during communication,
The buzzer 13 is sounded, and the fact is displayed on the display of the port 6 and notified by a predetermined message (step S15), and the off-hook operation of the telephone 14 or the stop key operation in the port is checked (step S16). ). When the off-hook operation or the stop key operation is performed, it is checked whether the transmission of the image information of one page is completed and whether there is the transmitted image information of the next page (steps S17 and S18).

If transmission of one page is completed and there is transmission image information of the next page, a communication control signal for interrupting communication is transmitted to the facsimile machine of the destination (step S1).
9) If the transmission of one page ends and there is no transmission image information of the next page, the communication procedure until the end of the communication is continued (step S20). Next, an interrupt call signal is captured by the pseudo hooking operation (off → on) of the dial transmission relay RY2 (step S21), and a predetermined voice message is transmitted from the voice response circuit 10 to the destination communication terminal to respond (step S22). ), To determine whether the interrupt call signal from the destination communication terminal is a facsimile device or a telephone , wait for a certain period of time for the tone signal detection circuit 23 to detect the CNG signal (call signal) as a response from the destination communication terminal and check (Step S23, S
twenty four).

Here, as the interruption signal in step S19, for example, a signal of 1500 Hz by a single tone signal is transmitted for one second. When the interruption signal is <br/> partner communication terminal has received, to start the timer in the standby state of 1 minute we shall wait for the next instruction. When not detect a CNG signal by predetermined time elapses, electrostatic
When it is determined that the telephone is the talker , the buzzer 13 sounds again to notify (step S25). When the off-hook of the telephone 14 is detected by the hook detection circuit 25 (step S26), the line switching relay RY1 is connected to the telephone 14 side. Telephone switching relay
RY3 is switched from the power supply Vcc side to the line L side to enable communication with the telephone at the interruption destination (step S27). Next, the communication mode is checked, the process shifts to the redial standby state, and the process ends (steps S28 and S29).

On the other hand, when the CNG signal is detected in step S23, when it is determined that the other party's communication terminal is a facsimile apparatus, the dial transmission relay RY2 is again activated in order to give priority to the facsimile communication being executed first. A pseudo hooking operation is performed to return to the facsimile communication state with the destination facsimile machine, a restart signal is transmitted to restart the transmission of image information (steps S30 and S31), and an interruption during the communication after step S12 is performed. Return to the call detection process.

At this time, as the restart signal, for example, a single tone signal (1600 Hz signal) having a frequency different from that of the interruption signal is transmitted for one second.
When the restart signal is received by the other party's facsimile apparatus, the one-minute standby state is released and facsimile communication is continued. On the other hand, when a ringing signal of 16 Hz is detected by the ringing detection circuit 26 in step S2, reception processing is started, the line switching relay RY1 is connected to the facsimile side from the initial state, and the dial transmission relay RY2 is turned on. Telephone switching relay RY
3 is switched to the power supply Vcc side (step S32). Next, after transmitting a predetermined response message from the voice response circuit 10 (step S33), the system waits for a certain period of time as a response of the destination communication terminal and checks the detection of the CNG signal (steps S34 and S35). When not detect the CNG signal wait a certain time, the other party is determined to be the phone notifies by sounding the buzzer 13 again goes to the step S25 and subsequent steps, the line by the off-hook of the telephone 14 The switching relay RY1 is connected to the telephone 14 side, and the telephone switching relay RY
3 is switched to the line L to enable a call (steps S25 to S27).

When a CNG signal is detected, it is determined that the other party is a facsimile machine, and the command (DCS signal (digital command signal)) of the transmitting facsimile machine is given.
, Etc.), the image information reception process is started (step S36), and the interrupt call detection process during communication after step S12 is executed. The line L to which the facsimile apparatus 1 is connected has subscribed to the call waiting service of NTT by executing the communication procedure corresponding to the interruption after the detection of the interrupt call signal from the line L during the facsimile communication as described above. Can also deal with the service without hindering the service.
Accordingly, the conventional call waiting service and facsimile communication can be simultaneously used.

Therefore, even during the facsimile communication, it is possible to reliably notify the user of the reception of the interrupt call and to prompt the user to respond, and the process shifts to a process after the response to the destination telephone or the facsimile machine. A reliable response can be obtained, and the usability of the facsimile apparatus can be improved. In the above embodiment, the interrupt signal and the restart signal are single tone signals having different frequencies. However, the present invention is not limited to this signal form, and it is sufficient that both the transmitting and receiving facsimile apparatuses can recognize the signal. Of course.

[0030]

According to the present invention, a user upon detecting the interrupt call signal from the telephone line during communication image information
Responds to an interrupt call according to the
At the same time, the CNG signal is detected for a certain time, and the CNG signal is detected.
If it is not detected, it notifies the user of the incoming call, so it is connected to the telephone line subscribed to the service that can receive interrupted calls during a call, and even if facsimile communication is being performed via that telephone line, the Accordingly, it is possible to reliably notify the user that the interrupt call has been received and to prompt the user to respond. Therefore, usability of the facsimile apparatus can be improved.

[0031]

[Brief description of the drawings]

FIG. 1 is a block diagram of a facsimile apparatus according to the present invention.

FIG. 2 is a block diagram of the modem of FIG. 1;

FIG. 3 is a flowchart showing a part of an interrupt call detection communication process by the facsimile apparatus of the present invention .

4 is a flowchart showing a continuation of the interrupt call detection communication process of FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Facsimile apparatus 2 CPU (communication control means, 2nd detection means, control means) 3 ROM 4 RAM 5 DCR 6 O port 7 Scanner 8 Plotter 9 Modem 10 Voice response circuit (Voice response means) 11 NCU 12 I / O port 13 Buzzer (Incoming notification means) 14 Telephone 15 Data bus 21 Modulation / demodulation circuit 22 Tone transmission circuit 23 Tone detection circuit (first detection means, signal detection means,
Tone detection means) 25 Hook detection circuit (off-hook detection means) 26 Ringing detection circuit RY1 Line switching relay (switching connection means) RY2 Dial sending relay (pseudo hooking means) RY3 Telephone switching relay (switching connection means)

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H04N 1/32-1/34 H04M 3/42 H04M 11/00-11/10

Claims (4)

(57) [Claims] 1. A facsimile apparatus for communicating image information via a telephone line, a signal detecting means for detecting a call signal from the telephone line, and a CNG signal for determining whether or not the destination communication terminal is a facsimile apparatus. , A call notifying means for notifying a user of an incoming call, and a pseudo hooking operation of a telephone of the facsimile apparatus.
Wherein a pseudo hooking means, and detects a call signal from the second partner communication terminal during communication of image information between the first partner communication terminal to perform pseudo Hulk
The on-hook operation is performed by the
In response to complement, then, to detect the reception of a CNG signal by the tone detecting means, if the CNG signal is detected is determined that the second partner communication terminal is a facsimile apparatus, by the pseudo-hooking means Off-hook operation
While opening the connection between the second partner communication terminal performs, and a control means for notifying an incoming call to the user by the incoming notification unit when not detected CNG signal even after the lapse of a predetermined time A facsimile machine comprising: 2. A response to a call signal from a second destination communication terminal during communication of image information with the first destination communication terminal is executed in accordance with a user's instruction. A facsimile machine as described. 3. The facsimile apparatus according to claim 1, further comprising voice response means for transmitting a voice message for responding to a call signal from said second destination communication terminal. 4. An off-hook detecting means for detecting an off-hook operation on a telephone of the facsimile apparatus, a switch connecting means for switching a telephone line to the telephone for connection, and after notifying a user of an incoming call by the incoming call notifying means, 4. The facsimile apparatus according to claim 1, further comprising: control means for switching the telephone line to the telephone by the switching connection means when the off-hook detection means detects an off-hook by the telephone.